*Compatibility Chart1, You can distinguish specific model of an automobile by VIN(Vehicle Identification Number).2, VIN(Vehicle Identification Number) consists of total 17 English letters and arabic digits.3, VIN does not include the letters I (i), O (o), and Q (q) (to avoid confusion with numerals 1 and 0). Rear Pair Air Suspension Springs For Mercedes W251 R320 R350 R500 R550 R63 AMG
*Compatibility Chart
1, You can distinguish specific model of an automobile by VIN(Vehicle Identification Number).
2, VIN(Vehicle Identification Number) consists of total 17 English letters and arabic digits.
3, VIN does not include the letters I (i), O (o), and Q (q) (to avoid confusion with numerals 1 and 0).
Mercedes-Benz R-Class W251
R320 Bluetec Wagon 4-Door 3.0L 2009
R320 CDI Wagon 4-Door 3.0L 2007-2008
R3504MaticWagon 4-Door 3.5L 2006-2013
R350 Base Wagon 4-Door 3.5L 2008-2013
R350 Bluetec4MaticWagon 4-Door 3.0L 2010-2013
R500 Base Wagon 4-Door 5.0L 2006-2008
R500 Premium Wagon 4-Door 5.0L 2006
R500 Sport Wagon 4-Door 5.0L 2006-2008
R5504MaticWagon 4-Door 5.5L 2008
R63 AMG Base Wagon 4-Door 6.3L 2007
*Air SuspensionStructure:
30 A251 320 00 25 Pneumatic Spring
30 A251 320 03 25 Air Spring
30 A251 320 04 25 Air Spring
70 A003 997 56 90 Clamp
100 A251 320 06 31 Shock Absorber
100 A251 320 07 31 Shock Absorber
100 A251 320 09 31 Shock Absorber
100 A251 320 10 31 Shock Absorber
100 A251 320 13 31 Shock Absorber
100 A251 320 14 31 Shock Absorber
100 A251 320 18 31 Shock Absorber
100 A251 320 19 31 Shock Absorber
100 A251 320 21 31 Shock Absorber
100 A251 320 22 31 Shock Absorber
100 A251 320 29 31 Shock Absorber
100 A251 320 30 31 Shock Absorber
100 A251 320 31 31 Shock Absorber
105 A164 540 67 10 Wiring Harness
110 A251 324 00 04 Rear Spring
110 A251 324 01 04 Helical Spring
120 A164 325 02 15 Spring Case
125 A164 324 00 84 Shim
130 A211 328 00 5 Seal Holder
140 A164 320 00 56 Shim
145 A166 326 04 67 Spring Plate
150 N000000 005277 Nut
190 A251 327 00 95 Reinforcement
190 N009021 008213 Washer
200 N000000 003343 Nut
200 N000000 007498 Nut
210 N910105 016009 Hexagon Head Bolt
700 A210 540 21 81 Clutch
710 A000 545 68 80 Gasket
710 A008 545 63 26 Female Contact
*Generation &Evolution:
Mercedes-Benz R-Class
W251 First generation AMG (2007)
6.2 L M156 V8 Engine
The AMG Version of the W251
*Removal Guideline:
1.Raise vehicle with lifting platform.
-Raise vehicle far enough until the wheels are clear of the ground.
2.Empty air spring use STAR DIAGNOSIS system. Connect STAR DIAGNOSIS and read out fault memory.
3.Switch off ignition and remove the transmitter key from the EIS control unit.
-On vehicles w/Keyless Go, (889), Press Keyless Go button repeatedly until ignition isswitched off. Remove transmitter key from vehicle and storeit in a location beyond its
transmission range (at least 2 m).
4.Raise vehicle with lifting platform.
5.Unscrew threaded connection for compressed air line of air suspension from the air spring.
-Detach threaded air line connector from airline, make sure a clean straight cut on line.
6.Carefully pull air spring downwards at its upper plastic frame until the air spring detaches from the retaining clip.
-The retaining clip must be replaced during installation as it is destroyed during removal.
7.Carefully push the air spring together upwards, in the process press the air spring centering from below out of the lower transverse control arm.
8.Remove air spring downwards at an Guideline:
Caution: If the air spring is not installed and filled in accordance with the regulations, it can be pre-damaged and fail later on.
1.Install the new retaining clip onto body of the vehicle.
-Remove the remains of the old retianing clip from the body of the vehicle.
2.Mount cover on the air spring.
-The fixing journals must engage in the holes of the air spring. The curved surface of the cover must be positioned above the compressed air line connection of the air spring.
3.Insert air spring.
-Do not twist air spring, otherwise it will be damaged. The airspring must latch in the retaining clip and be positioned with the lug of the air spring centering correctly in the lower transverse control arm.
4.Pull plastic airline fitting insert straight out and insert air line directly into airline fitting.
5.Lower vehicle with lifting platform.
-Only lower vehicle far enough that the wheels are still easily accessible.
6.Start engine and run.
-Before starting, ensure that the transmission is in the park position.
-Use exhaust extraction!
7.Inflate air spring using the STAR DIAGNOSIS system. Connect and read out fault memory.
-Ensure that there are no leaks from the air suspension system.
8.Switch off engine and lower the vehicle using the lifting platform.
*Warning & Notice:
Vent all air pressure from the air suspension system prior to disconnecting or removing any air suspension components. It is dangerous to remove air suspension components while under pressure. Failure to follow this instruction may result in serious personal injury.
Any air spring which is unfolded must be refolded prior to being installed in a vehicle. Refer to the procedure. An incorrectly folded air spring could rupture, altering the handling characteristics of the vehicle. If a vehicle has been driven with an incorrectly folded air spring, a new air spring must be installed. Failure to follow these instructions may result in serious injury to vehicle occupant(s).
Failure to observe the following instructions may result in a sudden failure of the air spring or suspension system.
Any rear spring which is unfolded must be refolded prior to being installed in a vehicle.
The air spring refolding procedure should only be used for an air spring which has never supported the vehicle's weight while in the incorrectly folded position.
Incorrectly folded air springs found on vehicles during pre-delivery inspection or after use must be installed new.
Do not attempt to inflate any air spring which has been collapsed while uninflated from the rebound hanging position to the jounce stop.
When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure.
After inflating an air spring in the hanging position, it must be inspected for correct shape.
1.NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system.
With the vehicle in NEUTRAL, position on a hoist until the wheel and tire assemblies are slightly above the ground.
2.Using the scan tool, vent the air springs.
3.Remove the air spring retainer.
4.Detach the air spring from the rear axle.
5.Remove the air spring in the following sequence.
1.Disconnect the air spring solenoid electrical connector.
2.Compress the quick connect locking ring and pull out the air tube.
3.Remove the air spring.
*Frequently Asked Questions:
How to prevent the damage of air springs/How to extend the service life of air springs/struts etc.?
An air strut with separable air springs
If your vehicle offers a separable air suspension (Audi Allroad A6 C5, Mercedes-Benz W164, BMW X5, etc.), you should regularly (about once a week) lift the car to the maximum position, and remove dirt with a high-pressure cleaner (keep the cleaner at a distance to the air spring about 30 cm/12 inches, otherwise water pressure can damage the air spring). The highest position may vary depending on your model and regulation options. Therefore, please test this by trying the different modes available to you (Sport, comfort, dynamic, off-road) and choose the one that sets your vehicle to the highest position. The dirt will most likely be found under the fold of the pneumatic chambers. If you find a frozen layer of bitumen on the piston guide (the part of a strut on which the air spring is installed), it is recommended to clean it as well. Whenever possible, avoid riding on fresh asphalt, as fresh bitumen mixed with sand immediately results in a build-up of abrasives on the piston and in turn contributes to accelerated wear and tear of the air spring.
A complete air suspension shock
Many cars such as Mercedes W220 or W211 are set up with a complete air strut - shock absorber and air spring visually form a complete spare part. In many cases, you can easily recognize these by the metal cups with which the air spring is tightly mounted. To best avoid any damage, we highly recommend to regularly check the condition of the dust protection seals of the air strut.
What is the difference between an air spring and an air strut?
The air spring is a part of the air strut. Some vehicles (e.g. Mercedes ML) allow you to change the air spring separately. At our online shop you have the opportunity to buy either the whole air strut or only the air spring. For some type of vehicles it is not possible to change the air spring separately. In this case the whole air strut should be replaced.
Which side of my car is the Right and Left?
The right and left sides of an automobile are determined as if sitting in the car facing forward. Thus, the left side is on the left when sitting in the car facing forward, and the right side is on the right. For American cars, the driver’s side is on the left, and the passenger sits to the right of the driver. For cars in Japan, Britain, Ireland, the Bahamas and some other former British colonies -- where they drive on the left side of the road -- the passenger sits on the left side, and the driver (along with all the driving controls) is on the right.
What does 4MATIC mean?
4MATIC is the marketing name of a four-wheel drive system developed by Mercedes-Benz. It is designed to increase traction in slippery conditions.
What does AIRMATIC mean?
AIRMATIC is a Mercedes-Benz trademark for vehicles with air suspension systems. Compared with a conventional steel suspension, the AIRMATIC air suspension provides advantages in terms of handling safety and ride comfort. The AIRMATIC air suspension automatically adjusts the damping force on each wheel according to the current state of the road.
What does ABC mean?
ABC (Active Body Control) is a registered Mercedes-Benz trademark. It is a high-quality suspension system, which automatically adapts the suspension setting to the respective driving situation. There is also a crosswind stabilisation integrated in ABC systems.
How can I see if my vehicle is equipped with AIRMATIC or ABC?
You can check which suspension you have by opening the bonnet of your car and examining the top of the shock absorber.
If your vehicle is equipped with AIRMATIC, you will have obvious air lines leading from the top of the shocks:
If your vehicle is equipped with ABC, you will have small black electrical plugs leading into the top of both shocks:
*OEM Part Specifications:
- Key Words: Rear Pair Air Suspension Spring Bags For Mercedes R-Class W251 R320 R350 R500 R550 R63 AMG 2006-2013
- Package Includes: Pair for Rear Left & Right Air Suspension Spring Bags
Notes: Please double confirm the compatibility as well as the OEM number before purchasing.
Instruction is not included. Professional installation is recommended.
Rear Pair Air Suspension Springs For Mercedes W251 R320 R350 R500 R550 R63 AMG
*Compatibility Chart
1, You can distinguish specific model of an automobile by VIN(Vehicle Identification Number).
2, VIN(Vehicle Identification Number) consists of total 17 English letters and arabic digits.
3, VIN does not include the letters I (i), O (o), and Q (q) (to avoid confusion with numerals 1 and 0).
Mercedes-Benz R-Class W251
R320 Bluetec Wagon 4-Door 3.0L 2009
R320 CDI Wagon 4-Door 3.0L 2007-2008
R3504MaticWagon 4-Door 3.5L 2006-2013
R350 Base Wagon 4-Door 3.5L 2008-2013
R350 Bluetec4MaticWagon 4-Door 3.0L 2010-2013
R500 Base Wagon 4-Door 5.0L 2006-2008
R500 Premium Wagon 4-Door 5.0L 2006
R500 Sport Wagon 4-Door 5.0L 2006-2008
R5504MaticWagon 4-Door 5.5L 2008
R63 AMG Base Wagon 4-Door 6.3L 2007
*Air SuspensionStructure:
30 A251 320 00 25 Pneumatic Spring
30 A251 320 03 25 Air Spring
30 A251 320 04 25 Air Spring
70 A003 997 56 90 Clamp
100 A251 320 06 31 Shock Absorber
100 A251 320 07 31 Shock Absorber
100 A251 320 09 31 Shock Absorber
100 A251 320 10 31 Shock Absorber
100 A251 320 13 31 Shock Absorber
100 A251 320 14 31 Shock Absorber
100 A251 320 18 31 Shock Absorber
100 A251 320 19 31 Shock Absorber
100 A251 320 21 31 Shock Absorber
100 A251 320 22 31 Shock Absorber
100 A251 320 29 31 Shock Absorber
100 A251 320 30 31 Shock Absorber
100 A251 320 31 31 Shock Absorber
105 A164 540 67 10 Wiring Harness
110 A251 324 00 04 Rear Spring
110 A251 324 01 04 Helical Spring
120 A164 325 02 15 Spring Case
125 A164 324 00 84 Shim
130 A211 328 00 5 Seal Holder
140 A164 320 00 56 Shim
145 A166 326 04 67 Spring Plate
150 N000000 005277 Nut
190 A251 327 00 95 Reinforcement
190 N009021 008213 Washer
200 N000000 003343 Nut
200 N000000 007498 Nut
210 N910105 016009 Hexagon Head Bolt
700 A210 540 21 81 Clutch
710 A000 545 68 80 Gasket
710 A008 545 63 26 Female Contact
*Generation &Evolution:
Mercedes-Benz R-Class
W251 First generation AMG (2007)
6.2 L M156 V8 Engine
The AMG Version of the W251
*Removal Guideline:
1.Raise vehicle with lifting platform.
-Raise vehicle far enough until the wheels are clear of the ground.
2.Empty air spring use STAR DIAGNOSIS system. Connect STAR DIAGNOSIS and read out fault memory.
3.Switch off ignition and remove the transmitter key from the EIS control unit.
-On vehicles w/Keyless Go, (889), Press Keyless Go button repeatedly until ignition isswitched off. Remove transmitter key from vehicle and storeit in a location beyond its
transmission range (at least 2 m).
4.Raise vehicle with lifting platform.
5.Unscrew threaded connection for compressed air line of air suspension from the air spring.
-Detach threaded air line connector from airline, make sure a clean straight cut on line.
6.Carefully pull air spring downwards at its upper plastic frame until the air spring detaches from the retaining clip.
-The retaining clip must be replaced during installation as it is destroyed during removal.
7.Carefully push the air spring together upwards, in the process press the air spring centering from below out of the lower transverse control arm.
8.Remove air spring downwards at an Guideline:
Caution: If the air spring is not installed and filled in accordance with the regulations, it can be pre-damaged and fail later on.
1.Install the new retaining clip onto body of the vehicle.
-Remove the remains of the old retianing clip from the body of the vehicle.
2.Mount cover on the air spring.
-The fixing journals must engage in the holes of the air spring. The curved surface of the cover must be positioned above the compressed air line connection of the air spring.
3.Insert air spring.
-Do not twist air spring, otherwise it will be damaged. The airspring must latch in the retaining clip and be positioned with the lug of the air spring centering correctly in the lower transverse control arm.
4.Pull plastic airline fitting insert straight out and insert air line directly into airline fitting.
5.Lower vehicle with lifting platform.
-Only lower vehicle far enough that the wheels are still easily accessible.
6.Start engine and run.
-Before starting, ensure that the transmission is in the park position.
-Use exhaust extraction!
7.Inflate air spring using the STAR DIAGNOSIS system. Connect and read out fault memory.
-Ensure that there are no leaks from the air suspension system.
8.Switch off engine and lower the vehicle using the lifting platform.
*Warning & Notice:
Vent all air pressure from the air suspension system prior to disconnecting or removing any air suspension components. It is dangerous to remove air suspension components while under pressure. Failure to follow this instruction may result in serious personal injury.
Any air spring which is unfolded must be refolded prior to being installed in a vehicle. Refer to the procedure. An incorrectly folded air spring could rupture, altering the handling characteristics of the vehicle. If a vehicle has been driven with an incorrectly folded air spring, a new air spring must be installed. Failure to follow these instructions may result in serious injury to vehicle occupant(s).
Failure to observe the following instructions may result in a sudden failure of the air spring or suspension system.
Any rear spring which is unfolded must be refolded prior to being installed in a vehicle.
The air spring refolding procedure should only be used for an air spring which has never supported the vehicle's weight while in the incorrectly folded position.
Incorrectly folded air springs found on vehicles during pre-delivery inspection or after use must be installed new.
Do not attempt to inflate any air spring which has been collapsed while uninflated from the rebound hanging position to the jounce stop.
When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure.
After inflating an air spring in the hanging position, it must be inspected for correct shape.
1.NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system.
With the vehicle in NEUTRAL, position on a hoist until the wheel and tire assemblies are slightly above the ground.
2.Using the scan tool, vent the air springs.
3.Remove the air spring retainer.
4.Detach the air spring from the rear axle.
5.Remove the air spring in the following sequence.
1.Disconnect the air spring solenoid electrical connector.
2.Compress the quick connect locking ring and pull out the air tube.
3.Remove the air spring.
*Frequently Asked Questions:
How to prevent the damage of air springs/How to extend the service life of air springs/struts etc.?
An air strut with separable air springs
If your vehicle offers a separable air suspension (Audi Allroad A6 C5, Mercedes-Benz W164, BMW X5, etc.), you should regularly (about once a week) lift the car to the maximum position, and remove dirt with a high-pressure cleaner (keep the cleaner at a distance to the air spring about 30 cm/12 inches, otherwise water pressure can damage the air spring). The highest position may vary depending on your model and regulation options. Therefore, please test this by trying the different modes available to you (Sport, comfort, dynamic, off-road) and choose the one that sets your vehicle to the highest position. The dirt will most likely be found under the fold of the pneumatic chambers. If you find a frozen layer of bitumen on the piston guide (the part of a strut on which the air spring is installed), it is recommended to clean it as well. Whenever possible, avoid riding on fresh asphalt, as fresh bitumen mixed with sand immediately results in a build-up of abrasives on the piston and in turn contributes to accelerated wear and tear of the air spring.
A complete air suspension shock
Many cars such as Mercedes W220 or W211 are set up with a complete air strut - shock absorber and air spring visually form a complete spare part. In many cases, you can easily recognize these by the metal cups with which the air spring is tightly mounted. To best avoid any damage, we highly recommend to regularly check the condition of the dust protection seals of the air strut.
What is the difference between an air spring and an air strut?
The air spring is a part of the air strut. Some vehicles (e.g. Mercedes ML) allow you to change the air spring separately. At our online shop you have the opportunity to buy either the whole air strut or only the air spring. For some type of vehicles it is not possible to change the air spring separately. In this case the whole air strut should be replaced.
Which side of my car is the Right and Left?
The right and left sides of an automobile are determined as if sitting in the car facing forward. Thus, the left side is on the left when sitting in the car facing forward, and the right side is on the right. For American cars, the driver’s side is on the left, and the passenger sits to the right of the driver. For cars in Japan, Britain, Ireland, the Bahamas and some other former British colonies -- where they drive on the left side of the road -- the passenger sits on the left side, and the driver (along with all the driving controls) is on the right.
What does 4MATIC mean?
4MATIC is the marketing name of a four-wheel drive system developed by Mercedes-Benz. It is designed to increase traction in slippery conditions.
What does AIRMATIC mean?
AIRMATIC is a Mercedes-Benz trademark for vehicles with air suspension systems. Compared with a conventional steel suspension, the AIRMATIC air suspension provides advantages in terms of handling safety and ride comfort. The AIRMATIC air suspension automatically adjusts the damping force on each wheel according to the current state of the road.
What does ABC mean?
ABC (Active Body Control) is a registered Mercedes-Benz trademark. It is a high-quality suspension system, which automatically adapts the suspension setting to the respective driving situation. There is also a crosswind stabilisation integrated in ABC systems.
How can I see if my vehicle is equipped with AIRMATIC or ABC?
You can check which suspension you have by opening the bonnet of your car and examining the top of the shock absorber.
If your vehicle is equipped with AIRMATIC, you will have obvious air lines leading from the top of the shocks:
If your vehicle is equipped with ABC, you will have small black electrical plugs leading into the top of both shocks:
*OEM Part Specifications:
- Key Words: Rear Pair Air Suspension Spring Bags For Mercedes R-Class W251 R320 R350 R500 R550 R63 AMG 2006-2013
- Package Includes: Pair for Rear Left & Right Air Suspension Spring Bags
Notes: Please double confirm the compatibility as well as the OEM number before purchasing.
Instruction is not included. Professional installation is recommended.
Item SpecificsPlacement on Vehicle LeftType Air Suspension SpringFitment Type Direct ReplacementSize Single Dimension(CM) Weight(KG) 2.000Upper Mounting Isolator Included No Isolator RequiredLower Mounting Isolator Included No Isolator RequiredUpper Mount Type StudLower Mount Type Base CupIncluded Hardware NoneDrive Layout Front Engine RWD & 4WDPlatform W251Custom Bundle YesMaterial Iron,Aluminium Alloy,RubberQuantity PairManufacturer Warranty 1 YearOE Spec or Performance/Custom OE SpecAdjustable YesFeatures SealedBrand ScitooUPC 688209039931Manufacturer Part Number CB805129S01Interchange Part Number Air Suspension Spring Bags, Air Ride Spring BagsOther Part Number 2513200025Superseded Part Number 2513200325
Shipping
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
1. Package handling takes about 2 business days at our warehouse, so please make sure entering correct payment and shipping information before checking out. Once your payment is completed, we are not going to accept any more changes to your order.
2.All domestic orders will be shipped via USPS, UPS or Fedex from our US warehouse and usually arrives to your door in about 2-7 business days.
3.Local pick up is not available.
4.International Buyers C Please Note:
a. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.
b. Please check with your country customs office to determine what these additional costs will be prior to offerding/buying.]
Payment
[We only accept payment through PayPal. You can open a Paypal account at]
Returns
1.All of our brand new items come with a 60-Days money-back guarantee.
2.We define the item as defective only if it doesn't function as described, It is the buyer's responsibility to understand the item description before offerding.
3.We will replace the defective items, provided that they are in stock within the warranty period posted with the listing and the buyer return the original item and pay for the S&H cost for the replacement.
4.We will refund the purchase price if the replacement is not available or buyer prefers a refund and send the original item back at his/her own cost.
5.Shipping& handling cost are not refundable.
6.Man-made damage by abuse or wrong operation is not covered by this warranty.
7.No product liability insurance is assumed.
8.Refunds will be credited within 5 to 7 business days of receiving the return. When we've received and processed the return, we will refund the applicable amount minus any Recovery Fees (See Details Below) for the amount you paid for the item(s), plus any applicable sales tax. ]
Customer Services
Q: How do I pay for my purchase?
A: MY store accepts PayPal.
Q: When will the item be shipped out?
A: This item will be shipped with 2 business day once payment completed.
Q: Where is my tracking number?
A: Please log on your account, click "my "-->"my summary", or open your email box and find the shipping notification email.
Q: How do I return an item?
A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]
response
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2. If you are dissatisfied for any reason, please do contact us aresponse. We will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave a response to all our customers.
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Rear Pair Air Suspension Springs For Mercedes W251 R320 R350 R500 R550 R63 AMG
*Compatibility Chart
1, You can distinguish specific model of an automobile by VIN(Vehicle Identification Number).
2, VIN(Vehicle Identification Number) consists of total 17 English letters and arabic digits.
3, VIN does not include the letters I (i), O (o), and Q (q) (to avoid confusion with numerals 1 and 0).
Mercedes-Benz R-Class W251
R320 Bluetec Wagon 4-Door 3.0L 2009
R320 CDI Wagon 4-Door 3.0L 2007-2008
R3504MaticWagon 4-Door 3.5L 2006-2013
R350 Base Wagon 4-Door 3.5L 2008-2013
R350 Bluetec4MaticWagon 4-Door 3.0L 2010-2013
R500 Base Wagon 4-Door 5.0L 2006-2008
R500 Premium Wagon 4-Door 5.0L 2006
R500 Sport Wagon 4-Door 5.0L 2006-2008
R5504MaticWagon 4-Door 5.5L 2008
R63 AMG Base Wagon 4-Door 6.3L 2007
*Air SuspensionStructure:
30 A251 320 00 25 Pneumatic Spring
30 A251 320 03 25 Air Spring
30 A251 320 04 25 Air Spring
70 A003 997 56 90 Clamp
100 A251 320 06 31 Shock Absorber
100 A251 320 07 31 Shock Absorber
100 A251 320 09 31 Shock Absorber
100 A251 320 10 31 Shock Absorber
100 A251 320 13 31 Shock Absorber
100 A251 320 14 31 Shock Absorber
100 A251 320 18 31 Shock Absorber
100 A251 320 19 31 Shock Absorber
100 A251 320 21 31 Shock Absorber
100 A251 320 22 31 Shock Absorber
100 A251 320 29 31 Shock Absorber
100 A251 320 30 31 Shock Absorber
100 A251 320 31 31 Shock Absorber
105 A164 540 67 10 Wiring Harness
110 A251 324 00 04 Rear Spring
110 A251 324 01 04 Helical Spring
120 A164 325 02 15 Spring Case
125 A164 324 00 84 Shim
130 A211 328 00 5 Seal Holder
140 A164 320 00 56 Shim
145 A166 326 04 67 Spring Plate
150 N000000 005277 Nut
190 A251 327 00 95 Reinforcement
190 N009021 008213 Washer
200 N000000 003343 Nut
200 N000000 007498 Nut
210 N910105 016009 Hexagon Head Bolt
700 A210 540 21 81 Clutch
710 A000 545 68 80 Gasket
710 A008 545 63 26 Female Contact
*Generation &Evolution:
Mercedes-Benz R-Class
W251 First generation AMG (2007)
6.2 L M156 V8 Engine
The AMG Version of the W251
*Removal Guideline:
1.Raise vehicle with lifting platform.
-Raise vehicle far enough until the wheels are clear of the ground.
2.Empty air spring use STAR DIAGNOSIS system. Connect STAR DIAGNOSIS and read out fault memory.
3.Switch off ignition and remove the transmitter key from the EIS control unit.
-On vehicles w/Keyless Go, (889), Press Keyless Go button repeatedly until ignition isswitched off. Remove transmitter key from vehicle and storeit in a location beyond its
transmission range (at least 2 m).
4.Raise vehicle with lifting platform.
5.Unscrew threaded connection for compressed air line of air suspension from the air spring.
-Detach threaded air line connector from airline, make sure a clean straight cut on line.
6.Carefully pull air spring downwards at its upper plastic frame until the air spring detaches from the retaining clip.
-The retaining clip must be replaced during installation as it is destroyed during removal.
7.Carefully push the air spring together upwards, in the process press the air spring centering from below out of the lower transverse control arm.
8.Remove air spring downwards at an Guideline:
Caution: If the air spring is not installed and filled in accordance with the regulations, it can be pre-damaged and fail later on.
1.Install the new retaining clip onto body of the vehicle.
-Remove the remains of the old retianing clip from the body of the vehicle.
2.Mount cover on the air spring.
-The fixing journals must engage in the holes of the air spring. The curved surface of the cover must be positioned above the compressed air line connection of the air spring.
3.Insert air spring.
-Do not twist air spring, otherwise it will be damaged. The airspring must latch in the retaining clip and be positioned with the lug of the air spring centering correctly in the lower transverse control arm.
4.Pull plastic airline fitting insert straight out and insert air line directly into airline fitting.
5.Lower vehicle with lifting platform.
-Only lower vehicle far enough that the wheels are still easily accessible.
6.Start engine and run.
-Before starting, ensure that the transmission is in the park position.
-Use exhaust extraction!
7.Inflate air spring using the STAR DIAGNOSIS system. Connect and read out fault memory.
-Ensure that there are no leaks from the air suspension system.
8.Switch off engine and lower the vehicle using the lifting platform.
*Warning & Notice:
Vent all air pressure from the air suspension system prior to disconnecting or removing any air suspension components. It is dangerous to remove air suspension components while under pressure. Failure to follow this instruction may result in serious personal injury.
Any air spring which is unfolded must be refolded prior to being installed in a vehicle. Refer to the procedure. An incorrectly folded air spring could rupture, altering the handling characteristics of the vehicle. If a vehicle has been driven with an incorrectly folded air spring, a new air spring must be installed. Failure to follow these instructions may result in serious injury to vehicle occupant(s).
Failure to observe the following instructions may result in a sudden failure of the air spring or suspension system.
Any rear spring which is unfolded must be refolded prior to being installed in a vehicle.
The air spring refolding procedure should only be used for an air spring which has never supported the vehicle's weight while in the incorrectly folded position.
Incorrectly folded air springs found on vehicles during pre-delivery inspection or after use must be installed new.
Do not attempt to inflate any air spring which has been collapsed while uninflated from the rebound hanging position to the jounce stop.
When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure.
After inflating an air spring in the hanging position, it must be inspected for correct shape.
1.NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system.
With the vehicle in NEUTRAL, position on a hoist until the wheel and tire assemblies are slightly above the ground.
2.Using the scan tool, vent the air springs.
3.Remove the air spring retainer.
4.Detach the air spring from the rear axle.
5.Remove the air spring in the following sequence.
1.Disconnect the air spring solenoid electrical connector.
2.Compress the quick connect locking ring and pull out the air tube.
3.Remove the air spring.
*Frequently Asked Questions:
How to prevent the damage of air springs/How to extend the service life of air springs/struts etc.?
An air strut with separable air springs
If your vehicle offers a separable air suspension (Audi Allroad A6 C5, Mercedes-Benz W164, BMW X5, etc.), you should regularly (about once a week) lift the car to the maximum position, and remove dirt with a high-pressure cleaner (keep the cleaner at a distance to the air spring about 30 cm/12 inches, otherwise water pressure can damage the air spring). The highest position may vary depending on your model and regulation options. Therefore, please test this by trying the different modes available to you (Sport, comfort, dynamic, off-road) and choose the one that sets your vehicle to the highest position. The dirt will most likely be found under the fold of the pneumatic chambers. If you find a frozen layer of bitumen on the piston guide (the part of a strut on which the air spring is installed), it is recommended to clean it as well. Whenever possible, avoid riding on fresh asphalt, as fresh bitumen mixed with sand immediately results in a build-up of abrasives on the piston and in turn contributes to accelerated wear and tear of the air spring.
A complete air suspension shock
Many cars such as Mercedes W220 or W211 are set up with a complete air strut - shock absorber and air spring visually form a complete spare part. In many cases, you can easily recognize these by the metal cups with which the air spring is tightly mounted. To best avoid any damage, we highly recommend to regularly check the condition of the dust protection seals of the air strut.
What is the difference between an air spring and an air strut?
The air spring is a part of the air strut. Some vehicles (e.g. Mercedes ML) allow you to change the air spring separately. At our online shop you have the opportunity to buy either the whole air strut or only the air spring. For some type of vehicles it is not possible to change the air spring separately. In this case the whole air strut should be replaced.
Which side of my car is the Right and Left?
The right and left sides of an automobile are determined as if sitting in the car facing forward. Thus, the left side is on the left when sitting in the car facing forward, and the right side is on the right. For American cars, the driver’s side is on the left, and the passenger sits to the right of the driver. For cars in Japan, Britain, Ireland, the Bahamas and some other former British colonies -- where they drive on the left side of the road -- the passenger sits on the left side, and the driver (along with all the driving controls) is on the right.
What does 4MATIC mean?
4MATIC is the marketing name of a four-wheel drive system developed by Mercedes-Benz. It is designed to increase traction in slippery conditions.
What does AIRMATIC mean?
AIRMATIC is a Mercedes-Benz trademark for vehicles with air suspension systems. Compared with a conventional steel suspension, the AIRMATIC air suspension provides advantages in terms of handling safety and ride comfort. The AIRMATIC air suspension automatically adjusts the damping force on each wheel according to the current state of the road.
What does ABC mean?
ABC (Active Body Control) is a registered Mercedes-Benz trademark. It is a high-quality suspension system, which automatically adapts the suspension setting to the respective driving situation. There is also a crosswind stabilisation integrated in ABC systems.
How can I see if my vehicle is equipped with AIRMATIC or ABC?
You can check which suspension you have by opening the bonnet of your car and examining the top of the shock absorber.
If your vehicle is equipped with AIRMATIC, you will have obvious air lines leading from the top of the shocks:
If your vehicle is equipped with ABC, you will have small black electrical plugs leading into the top of both shocks:
*OEM Part Specifications:
- Key Words: Rear Pair Air Suspension Spring Bags For Mercedes R-Class W251 R320 R350 R500 R550 R63 AMG 2006-2013
- Package Includes: Pair for Rear Left & Right Air Suspension Spring Bags
Notes: Please double confirm the compatibility as well as the OEM number before purchasing.
Instruction is not included. Professional installation is recommended.
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