Having problems with your 2007 Mercedes-Benz C230 Sedan ?
Hi i have changed the bank 1 lambda sensor but the engine management light is back on even after having it reset also the emissions are up at 6% any ideas??? regards mark.
Try replacing the oppise 02 sensor you have a heated 02 sensor thats out, and it is possible the new one is defective or it may have what is called a lazy 02 it does not shift fast enought for the computer.
Repair Help & Product Troubleshooting for 2007 Mercedes-Benz C230 Sedan
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.