Mini Cooper Junction Box Fuel Pump Relay Repair Service
Fix for no-start / intermittent stalling caused by low fuel pressure (faulty fuel pump relay in fuse box)
✅ Plug & Play – No Coding Required ⚡ 1–2 Business Day Turnaround 🛠️ High-Quality New Relay Installed What This Service Addresses
Many Mini Cooper models experience no start or intermittent stalling due to low fuel pressure. The root cause is often a worn or failing fuel pump relay built into the junction box (fuse box). From the factory, this relay is considered “non-serviceable,” but we professionally fix the problem.
How It Works
- Purchase this listing.
- Ship your junction box (fuse box) to us. (Carefully package to prevent damage in transit.)
- We repair the internal fuel relay problem and test it.
- We return your repaired unit within 1–2 business days of arrival.
- Reinstall: plug & play – no programming or coding required.
After purchase: We will send you detailed shipping & reinstall instructions via Messages.
Scope of This Listing
- Included: Repair of the fuel pump relay fault within the junction box.
- Other Issues: If you suspect any additional junction box problems, message us before purchasing—if possible, we’ll offer options.
- Not Covered: Units with water / liquid damage, burnt boards, severe corrosion, or physically broken housings.
Important
It is the responsibility of you or your mechanic to properly diagnose the vehicle and confirm the fault is within the junction box fuel pump relay circuit. This is a mail-in repair service of your part; it does not include diagnosis on the car.
Compatible Part Numbers
This service applies to Mini Cooper junction boxes carrying any of the part numbers below (including supersessions/variants):
- 61.35-9803978-01
- 61.35 3453738-01
- 61.35 3451924-01
- 61.35 3455527-01
- 61.35 3457415-03
- 61.35 3453736-01
- 61.35-3455241-02
- 61.35 3457582-03
Unsure about compatibility? Send us your VIN or a photo of your junction box label, and we’ll confirm before you ship.
Turnaround & Shipping
- Repair time: Typically 1–2 business days from the time we receive your unit.
- Return shipping: Tracked service back to you after repair.
- Packing tip: Protect connectors and board with anti-static/bubble wrap; use a sturdy box.
Warranty & Terms
- This is a repair service of your original unit, not a sale of parts.
- Units with water damage or severe board damage are not eligible.
- Misdiagnosis is not covered; please confirm the fault is in the junction box fuel pump relay.
Questions?
Message us via —we respond quickly and can help confirm compatibility, packing tips, and turnaround timing.
After purchase, we will send you step-by-step shipping & reinstall instructions.
Note: “Mini Cooper” is used for identification purposes only. All trademarks belong to their respective owners.
