Failure Date: 08/10/2015. The contact owns a 2010 Mercedes Benz C300. The contact stated that after inserting the key into the ignition switch, the vehicle failed to start. The vehicle was towed to the dealer, who diagnosed that the steering wheel locking mechanism was faulty and needed to be replaced. same symptom: turning the key nothing responding from the engine; light and radio worked perfectly fine hence wasn't battery's problem. called the towing company have them towed my car to the dealer shop. diagnosis & repair labor = $1,000 (they said the labor hourly rate is $165) part - control unit EIS = $400. A problem that Mercedes-Benz owners may face is the key no longer turns in the ignition. This issue is often caused by a defective key, a bad shifter module, a failed Electronic Ignition Switch (EIS), the EIS-EZS, or a bad steering lock module (ESL). This problem can affect various Mercedes-Benz … Read More » Then the ignition stopped working, xentry showed nothing on the interior CAN, expecially front SAM. Also circuit 15 is not switching on, relay is fine and it seems to have voltage. Next day everything was fine again, all unit reappeared in xentry, lasted 3 days then same problem appeared, Im guessing some kind of loose connection or bad ground 2008 mercedes C300 with bad esl. Cost to fix is $1200. Seems like this is a known issues with mercedes as an internet search leads to many other who have had the same issue. I parked the car at work, then went out several hours later to go to lunch and it would not start. There was no sound of the starter or any other noises when trying to Vocational, Technical or Tra 3,872 satisfied customers. While back of car not working. Rear turn signals not. trunk and gas cap are not opening-brake lights won't turn off-rear view camera does not work-parking brake keeps going on c300 coupe 2018 … read more. 1WlLVt. It even works through the ignition, imagine that! So, my simple mind thinks the problem must have been the head unit. BTW, the install was very easy and B**t B*y was the worst for buying the Alpine and the satellite radio tuner, etc. It took two trips to get that right but the local shop had no problems.:thumbsup: Replace the battery in the key fob or consider having a new key programmed for your vehicle. If the spare key doesn’t work, further diagnosis will be required to identify the ignition switch issue. Remember to follow these steps to efficiently troubleshoot your Mercedes ignition switch problems. How to Remove/Repair/Replace a C Class Electrical Steering Lock (ESL) (Also applicable to W204, W207, W212) Part 3 Important Note for Reinstalling an As-found Locked ESL Note the mechanism must be returned to the locked state after replacing the electrical worm drive motor to avoid upsetting the ESL lock/unlock counters. Repairing the EIS, Replacing the ESL. We can test and repair your Faulty Mercedes EIS ESL and return it so you can simply plug and play. As for the Electronic Steering Lock or ESL, we can provide a permanent replacement that you only need to do once. We’ll replace the steering lock with an emulator. It bolts into the exact location as the lock. The contact owns a 2008 Mercedes-Benz C300. The contact stated that the vehicle failed to start without warning. The vehicle was towed to Mercedes-Benz of South charlotte (950 N polk St, pineville Mercedes Won’t Start But Lights Turn On: Other Frequently Asked Questions . Mercedes Key Turns But Won't Start . The following are the most possible situations if your key does not switch the ignition: The battery is either fully or partially drained. The electronic ignition system (EIS) is unable to operate as a result of this. But first

mercedes c300 ignition switch problems