You live in the USA = Lemon Act so you are okay.

 

I'm having precisely the same problem. I've had the car since January 2018 and it's happened four times, all when going from eco stop at a red light. After the third time, Mercedes replaced the starter. It then happened again about ten days later. Each time the car has been running for at least 45 minutes. It's going in again in two days. I'll keep you posted.

 

How's this issue going now? My car has exactly the same problem. I got the car at end of March, 2018, and it has already shifted into Park automatically three times (Twice at red light, once in the traffic). Each time, I had to press the start button to restart the engine.
Did you approach the sales manager who sold you the vehicle or the service department?

Thank you in advance!

 

 

Sorry for the slow reply but I wanted to be sure the problem was solved, which it appears to be. A subsequent visit had MB replace the security sensor under the hood, which -- odd as it sounds -- they said that MBUSA had told them there was a dead circuit in. That didn't do it. One month ago it was back in and, supposedly, the problem went from MBUSA to MBGER, which suggested replacing the crank sensor and pulse ring. That seems to have done the trick.

Good luck.

 

 

Yes, it's been over six months now and the crank sensor and pulse ring seem to have done the trick. Good luck!

 

 

Sure -- I worked solely through the dealer (Mercedes Benz of Wilmington, Delaware), which pursued the issue pretty diligently. When they couldn't solve if after two tries, they went to MBUSA. As I understood it, the guys in Wilmington came up with the crank sensor/pulse ring theory, which MBUSA ran by MG Germany. The guys in Wilmington were pretty psyched that MB Germany gave it the thumbs up and there was mention of MB Germany possibly issuing a service memo on the issue. Don't know if that ever happened.

One angle you might want to press is safety. I repeatedly mentioned to my dealer the ramifications of my deciding it was time to go, pressing the gas, and having the car die.

Good luck.

 

 

Hi folks - any update on the cause or possible fix? Was it the crank sensor and pulse ring?

 

DylanM,

I took my car to a different dealer and they were able to find that my voltage dip limiter was faulty and they replaced that. They believe this was causing the issue for me. They did check the crank sensor and pulse ring and did not find issues with that. Hope this helps.

 

That sure does - much appreciated. I'm taking in the car this week and will be sure to mention the voltage dip limiter too.

 

I am having the same issue. My car has now been in the shop three times because it periodically stalls at stop lights and traffic lights after a day of "hard use." They have replaced the starter and now are blaming it on some hood issue. I am going to start a Lemon Law proceeding. My car has been in the shop since 12/20/19. Today is 1/14/20 and they still have not resolved the issue!! (and all the while deny this is an issue with the car...)

 

I had the same exact issue on my 2018 C300 six months after I got the car. I took the car in 4 times totaling 45 days, and they replaced the starter too. They continued telling me that they cannot duplicate the issue and referred me to the manufacturer, in which they also declined to re-purchase the car back. I was being bounced back and forth between the dealer and MB USA, so had no choice but to find a lawyer.

A year later, I surrendered the car as they agreed to purchase it back...(Turned the car in a few hours ago.) Although I loved that car and did not want to give it back, it is unsafe! Please don't let them push you around like they did to me!

-Keep all your records. They are supposed to hand you the work order before and after dropping the car off. Beware that they may manipulate the drop off and pick up date. They will try to shave off days to get it "under" 30 days.
-Keep all footage - I know cellphones are dangerous while driving, but have it handy when the car stalls. I had my phone near me, so in the event of the car stalling, I would immediately turned on my emergency flashers and started recording.
-Document dates and times of people that you spoke too and occurrences of when and where the car stalled.
-Document any witnesses
-Get a lawyer!!!!

I work for Motortrend, we do marketing for all car manufacturers, including MB USA. Sadly, they didn't give a **** that a defective vehicle was sitting in their parking lot. As a matter of fact, they mentioned in their filing that I threatened tto tarnish their name since I worked for Motortrend, which was not true. I do admit to cussing them out, but never brought up that I would tarnish their name.

What really helped was the fact that I kept everything and documented EVERYTHING... I had a ton of evidence. Even the lawyer for Mercedes Benz had made a comment saying that "normally he doesn't receive this much evidence."

Hope that helps and Good luck.

If you need more guidance, I'm always happy to help

 

I had a 2015 that had this stalling/limp mode problem and eventually, after a lot of grief, worked out a trade in assist deal. The problem started after I had it a year so Lemon Law was not applicable. I got a 2019 replacement over a year ago and it has the same problem. I must be lucky!