Discussion Starter · #1 ·
A month ago I brought my car, with only 20,000 miles on it, to the dealer to have the soft close failure on the front door (still not working correctly) On my way home I stopped to run an errand, and when I got back in, and restarted the car it went into "limp mode". I immediately drove 30 miles back to the dealer. They diagnosed it as the right coil, and replaced it under warranty, but did state that when one coil fails the other will probably fail relatively soon afterward. Last Wednesday morning I started it and it immediately went into "limp mode". I was running late, so I had to drive it, but after about three restarts during the day, it went out of "limp mode". But there was now a slight miss, and check engine light remained on. I brought the car to the dealer the next day with it misfiring and check engine light on, but not in limp mode. Today they called to say that they could not get it to go into "limp mode", and the check engine light went off while in the shop, but there are stored codes: P2050 misfire, P2051 Cyl#1, 2055 Cyl #2, 2057 Cyl# 7, 205B Cyl#8. They said in an effort to solve the problem, they replaced the ABC pump, saying that sometimes it can cause misfiring (never heard that one) but really they probably changed it because Mercedes paid them to under the ABC campaign. I was told to come pick up the car as there is nothing more they can do. I asked why they couldn't replace the left coil and was told Mercedes would not authorized it or any other parts replacement under warranty, because there are no active codes and the check engine light is no longer on. Has anyone had any experience with this issue and/or dealing with or complaining to Mercedes about warranty replacement? Thanks!