Instrument cluster displays tend to fail, especially the clock and gear indicators. Our technicians tell us the instrument cluster will require replacement to correct this issue.
Problems for specific Mercedes-Benz E320 years:
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Most reported 2003 Mercedes-Benz E320 problems
"Crank no Start" Due to Failed Crankshaft Position Sensor
The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance.
37 Reports
The Differential May Develop Leaks From the Seals or Cover
Leaks may develop from the differential cover and/or seals on high mileage or older vehicles. Our technicians recommend a complete reseal of the differential unit if these leaks are addressed.
13 Reports
Failed Digital Heater Control Valve May Cause Poor Heat Output
A failed digital heater control valve can cause a lack of heat output from the climate control system.
11 Reports
Oil Leaking From Oil Level Sensor
An engine oil leak may develop from the oil level sensor. Replacement of the leaking sensor will commonly correct this concern.
11 Reports
SRS Light Due to Damage from Liquid Spilled onto Passenger Seat
Water can damage the weight sensor in the front, passenger seat, causing the SRS (airbag) light to illuminate. There is an electrical component in the seat cushion susceptible to fluid damage. Any spills should be dried up immediately in order to try and prevent damage to the sensor.
9 Reports
Engine Oil Leak From PCV Vent Housing and/or Engine Inspection Plate
An engine Oil leak may develop from the PCV vent housing on the valve cover and/or the inspection plate on the front of the engine.
9 Reports
Harmonic Balancer May Fail and Damage Timing Cover
The rubber bond in the harmonic balancer can decay, which causes the balancer to move and work its way toward the timing cover. If the balancer comes into contact with the timing cover while the engine is running, it will fracture and damage the cover and potentially other surrounding parts. The harmonic balancer should be inspected at every service.
8 Reports
Airmatic Pump Motor May Fail Due to Sticking Relay
The relay which turns the airmatic suspension pump on may fail causing the pump to run continuously. This can result in failure of the pump motor or a dead battery as the pump motor will continue to run after the car is turned off. Also, Worn airmatic pump mount bushings can causes noises in the front axle while driving on bumpy roads or a buzzing noise while the pump is running.
7 Reports
Transmission May Leak Fluid and Damage Control Module
The electrical connector at the automatic transmission may leak fluid into the wiring harness. If not repaired, the oil will migrate through the wiring harness and damage the transmission control module. At that point, a new harness and control module may be necessary to correct this problem.
7 Reports
Brake Light Switch Failure May Cause ESP/BAS Warning Lights
The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.
6 Reports
Early Versions of Central Gateway Module Have Software Problems
The early versions of the central gateway module (which allows different systems to communicate with each other) have software problems.
5 Reports
Failed Gateway Module May Cause Lack of Audio/Cell Phone Functionality
Lack of audio or cell phone functionality may be related to the failure of the audio gateway module.
5 Reports
Computer system software updates may cost money if car is out of warranty
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.
5 Reports