Smart ForTwo ABS Light On, Lateral Sensor Fix Needed

Had the same problem with my 2011 Smart ForFour CDI. The ABS warning came with traction control issues, especially noticeable during wet conditions. The diagnostic scan revealed a faulty lateral acceleration sensor in the electronic control module. This turned into a significant repair job. The entire ABS control unit needed replacement since the sensor is integrated into the main module. A safety warning worth noting: driving with compromised ABS and stability systems puts you at risk, particularly in emergency braking situations. Initially tried cleaning the sensor connections, but this was just a temporary solution. The wheel alignment was also checked as part of the diagnosis, since misalignment can sometimes trigger these warnings. However, the root cause was definitely the defective control unit. The repair requires specialized programming after installation, so this isnt a DIY job. Make sure to find a shop with experience in Smart electronic systems, as proper calibration is crucial for the stability control systems to work correctly. The symptoms you describe match exactly what happened in my case, and partial repairs or temporary fixes ultimately waste time and money. Best to address the complete unit replacement right away.

Thanks for sharing those details about the ABS module replacement. My experience sounds quite similar. The wheel alignment was fine in my case too, but the electronic stability system kept acting up until I got the whole unit replaced. Just wondering, what was the final cost for your repair? Mine was around 1200€ including programming, though prices can vary quite a bit. Have you had any other vehicle stability warning lights or related issues since getting it fixed?

After getting the control unit replaced, my Smart has been running perfectly with no stability or traction control issues. The lateral acceleration sensor fault was completely resolved, and I havent seen a single ABS warning light since the repair. The total cost came to 1000€, which included the new control unit and the necessary electronic programming. The price was fair considering the specialized work involved and the importance of these safety systems. The electronic stability system is now working as intended, and the peace of mind is worth every cent. The shop did a thorough job testing all related systems after installation to ensure everything was properly calibrated and communicating correctly. For anyone facing similar issues, its worth noting that when the lateral sensor starts acting up, it typically indicates a control unit problem that requires complete replacement. Trying to save money with partial fixes usually leads to recurring problems with these critical safety components.

I finally got everything fixed with my Smart. After reading about your experience, I went to a specialized shop that really knew what they were doing with these electronic control systems. The diagnostic scan confirmed it was indeed the lateral sensor causing the ABS and stability control problems. My mechanic explained the whole control unit needed replacement since the sensor is integrated. Got it done properly with all the required programming, cost me 1350€ total. The electronic stability system now works perfectly and those annoying warning lights are gone. The steering angle sensor is properly calibrated and the car handles great in all conditions. Really glad I didnt waste time trying cheaper temporary fixes. Best decision was finding a shop that actually specializes in Smart electronics. They properly tested everything after installation, so I feel confident the stability control system is working exactly as it should. No more worrying about compromised safety systems.