Abs Sensor BMW E31 Guide: Diagnosis, Replacement & Performance

Editorial Team Mar 08, 2026

When it comes to driving safety and precision, the ABS sensor in the BMW E31 plays a critical role—ensuring reliable braking and stability on every journey. Understanding its function and maintenance is key to preserving your E31’s performance.

Genuine BMW - 34521163111 - E31 Abs Wheel Speed Sensor - Front (34-52-1 ...
Genuine BMW - 34521163111 - E31 Abs Wheel Speed Sensor - Front (34-52-1 ... Source: www.ecstuning.com

Understanding the ABS Sensor in BMW E31

The ABS sensor in the BMW E31 monitors wheel speed and detects anomalies during braking, triggering the anti-lock braking system to prevent wheel lock-up. Located near each wheel hub, these sensors are vital for traction control and maintaining directional stability, especially during emergency stops or slippery conditions.

Genuine BMW - 34521163111 - E31 Abs Wheel Speed Sensor - Front (34-52-1 ...
Genuine BMW - 34521163111 - E31 Abs Wheel Speed Sensor - Front (34-52-1 ... Source: www.ecstuning.com

Common Symptoms of a Faulty ABS Sensor

Drivers should watch for warning lights on the dashboard, reduced braking efficiency, unusual brake pedal vibrations, or inconsistent stopping distances. Delayed ABS activation or persistent sensor error codes are clear indicators that the sensor may need inspection or replacement to maintain safety and performance.

ABS sensor BMW E31 in original quality at a good price
ABS sensor BMW E31 in original quality at a good price Source: www.buycarparts.co.uk

Replacing the ABS Sensor in BMW E31: Step-by-Step

Replacing the ABS sensor in the E31 requires careful attention: begin by disconnecting the battery, lifting the vehicle securely, accessing the sensor via the wheel hub, removing mounting bolts, disconnecting electrical connectors, installing the new sensor, and testing the system. Always use OEM or high-quality aftermarket parts and verify sensor calibration to ensure optimal braking response.

ABS-Sensor Impulsgeber vorne passend für 8er BMW E31 34521181911 840i ...
ABS-Sensor Impulsgeber vorne passend für 8er BMW E31 34521181911 840i ... Source: www.extra-classics.de

Maintaining your BMW E31’s ABS sensor is essential for safe driving and peak vehicle performance. Regular inspections and timely replacements prevent costly repairs and enhance braking reliability. Keep your E31’s safety systems in top condition—your journey depends on it.

ABS-Sensor Impulsgeber hinten passend für 8er BMW E31 840i 850i CSI ...
ABS-Sensor Impulsgeber hinten passend für 8er BMW E31 840i 850i CSI ... Source: www.extra-classics.de

This Genuine BMW E31 Abs Wheel Speed Sensor - Front (Mfg#34521163111) fits BMW E31 840Ci M60 4.0L, BMW E31 840Ci M62 4.4L, BMW E31 850Ci M73 5.4L, BMW E31 850CSi S70 5.6L. Hi Guy's, I am restoring a 1994 E31, Its back on the road now but I am in need of a rear ABS Sensor part number 34521181913. I have tried the main dealer and there isn't any in the UK, a local BMW breakers told me that Euro car parts have them and they don't.

BMW ABS Wheel Speed Sensor Troubleshooting
BMW ABS Wheel Speed Sensor Troubleshooting Source: www.youcanic.com

I ordered one from Germany and the. Home Drivetrain Transmission 34521163111 - Abs Wheel Speed Sensor - Front - Left - E31 Abs Wheel Speed Sensor - Front - Left - E31 Genuine BMW T#: 64141 Part#: 34521163111 Part#: 34. Designed to fit models of the first-generation BMW 8 Series (E31) and the latest car models, the 840Ci ABS Sensor has the exceptional accuracy and rather durable construction to become the leaders in the automotive market.

BOSCH ABS sensor for BMW models ABS sensor for BMW models
BOSCH ABS sensor for BMW models ABS sensor for BMW models Source: www.louis.eu

Removed from an E31 840i, this Rear ABS Wheel Speed Sensor presents in excellent condition. Sensor appears to be in good condition. 8 Series E31 (1989 - 1999) 840Ci.

8 Series E31 (1989 - 1999) 850CSi. Improves the safety of your BMW E31 (manufactured between 1989 and 1999) with the original BMW front ABS sensor, OEM 3452116111 reference. This impulse generator of impulse Ab-elektronik It guarantees optimal functioning of the anti -lock brake system (ABS), providing stability and trust in each braking.

【TOP DEAL】⚡️ Order Abs sensor for BMW 8 (E31) 840 Ci 286 hp M62B44 (448S1) easily at AUTODOC Fast delivery and low prices Discover now for yourself. www.schmiedmann.com BMW E31 Spare parts Spare parts - brakes/chassi/suspenssion etc. Brake parts Brake parts rear ABS sensor rear.

This Genuine BMW ABS Wheel Speed Sensor with Wire Harness (Mfg#34521181911) fits BMW E31 840Ci M60 4.0L, BMW E31 850Ci M70 5.0L, BMW E31 850Ci M73 5.4L, BMW E31 850CSi S70 5.6L, BMW E31 850i. 1 x NTK - Rear Driver Left ABS Wheel Speed Sensor. 1 x NTK - Rear Passenger Right ABS Wheel Speed Sensor.

2 x NTK - Front ABS Wheel Speed Sensors. California Proposition 65: (Rear Driver Left ABS Wheel Speed Sensor) WARNING: This product contains a chemical known to the State of California to cause Cancer and Reproductive Harm.