APNUWAER NOx Sensor For Citroen 1.6/2.0 HDi Diesel 2012-21 SNS735C 9821121180 For Sale - New and Used

Item Type: NOx Sensor

Condition: Brand New

OE Part Number: 9821121180
Ref No: SNS735C

APNUWAER Number: 9821121180 SNS735C

Warranty: One Year Warranty

Feature: High quality, Direct replacement, Can be installed directly

Packaging Method: Box Packed

Package Includes: 1 Piece

Product Description

Used for NOx detection in diesel vehicle exhaust. Misdiagnosis may occur due to

exhaust interference, aftertreatment faults, loose wiring, temperature conditions,

calibration compatibility and cross-sensitivity.

We focus on premium material selection and strict production quality control. Every component is precisely matched to ensure stable signal transmission, high detection accuracy and excellent compatibility with original vehicles.

Effectively resist high temperature, corrosion and harsh exhaust environment, greatly extending the service life. Our NOx sensors feature outstanding durability, reliable long-term performance and lower failure rates, providing you with long-lasting and cost-effective replacement solutions.

Fit Car Moder:

Common Misdiagnosis Causes:

Exhaust cross-interference causes abnormal readings and drift

Aftertreatment system failures show as false sensor faults

Loose wiring and connectors lead to intermittent faults

Insufficient working temperature results in warm-up timeout error

Gradual sensor aging, not sudden damage

Wrong model, lost calibration or software incompatibility

Maintenance Diagnosis Tips：
High downstream NOx: Check urea, catalyst and ammonia slip first

Low reading & DPF clog: Probe covered by carbon, poor airflow

Fault when hot, normal when cold: Loose wiring or corroded connector

New sensor still errors: Wrong model, lost calibration or system fault

Warm-up error in, short trips: Insufficient temperature, not sensor damage

WARRANTY: APNUWAER offers a 1-year unlimited mileage warranty. It is warranted to be free from defects in workmanship and materials under normal use for the entire warranty period from the date of purchase.