Rear air springs (bellows) may develop leaks, which causes the air pump to run more often to maintain ride height. Our technicians recommend that leaking air springs be replaced.
Mercedes-Benz E550 Problem Reports
Most Reported Mercedes-Benz E550 Problem Reports
Many software updates are available for the different computer systems, but if the vehicle is out of warranty, it may cost money to receive the updates (unless it is a recall). Some updates may be dealer-only, but a well-equipped independent shop can usually provide updates as well.
A failed digital heater control valve can cause a lack of heat output from the climate control system.