2020 MERCEDES-BENZ AMG E53 Engine Problems
2 NHTSA complaints on file
Engine Issues in the 2020 MERCEDES-BENZ AMG E53
2 engine complaints have been filed with NHTSA for the 2020 MERCEDES-BENZ AMG E53. Of these, 0 involved a crash, 0 involved a fire, and 0 resulted in injury.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
All Engine Complaints
The Engine Electrical harness is completely corroded after only 50,000 miles requiring a 4k+ repair. Oil leaking from the camshaft sensor pushed it way all throughout harness. There are no warnings as it will only be noticeable after doing routine maintenance OUTSIDE of the manufactures warranty. While driving you may lose complete power or slight power loss due to engine misfiring and low system voltage. Warranty company has denied my claim saying that it looks as if the car was in an accident with water damage but the car is pristine and accident free. This is happening to all Mercedes with magnetic camshaft solenoids after doing routine spark plugs. Any movement of the wires will cause damage to the corrosion and then electrical problems. This happened before with previous generations and they recalled the engine to put extensions between the sensors and harness. Unfortunately they did not do a recall...
While driving on the highway the engine shut down and I needed to pull over and restart the car. The engine would restart but then stalled several more times while driving. No check engine lights were on before the vehicle stalled and upon restarting the car no check engine lights turned on. I have it at the dealership currently but they can't look at it until December because of their backlog of repairs.