Complaint 2218687

Complaint Summary

FORWARD COLLISION AVOIDANCE: WARNINGS

Owner Narrative

Active distance assist inoperable, active brake assist functions limited, adaptive cruise control not working, lane keeping assist glitching. I was driving the vehicle home after purchase and the lane keeping assist was glitching, it was actively pulling the wheel to the left, like I was over the fog line (I wasn’t) and it was hard braking, Making driving very unsafe. I slowed down and got off at the next exit at a gas station to figure out what was happening. I put the vehicle in park and consulted the manual. I tried to turn off and back on all the systems, through the menu, noting worked. I shut the vehicle off and cleaned the areas around the sensors and the windshield, like the manual suggests. I went in to start the vehicle, and the message “service required do not shift gears” came on the dash. It was stuck in Park. I tried to get a tow truck, but had to wait 4 days, in a gas station parking lot before a tow company with a big enough truck, and skids, (because it was stuck in park) could come on Wednesday May 27. I got it towed to a repair shop. It shows the Code P179A77 direct select redundancy malfunction, they couldn’t fix it. It needs Xentry level diagnostics. The intelligent Servo Module, or direct select module failed/won’t shift from park. There is a recall that wasn’t fixed, I got a carfax from the dealer saying that there were NO active recalls. The recall is to update an all service modules. Yes it’s available for inspection, but it’s stuck in Park at the repair shop that can’t fix it in Riverton Wyoming. I called Mercedes Benz, and tried to get help because the active recall should fix these problems. They would not help. They will not sell me the part and code it to the vehicle because it’s part of their theft deterrent system. This has cost me thousands in flights, hotels, and countless hours trying to figure it out. The nearest Mercedes Benz dealership is 270 miles away, and towing will break me.

Owner-submitted narrative on file with NHTSA. Complaint narratives are self-reported and have not been verified.