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Problems for specific Mercedes-Benz E320 years:

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Newest reported Mercedes-Benz E320 problems

 

Verified for the Mercedes-Benz E320

Catalytic converter failure is common and may cause a Check Engine Light to illuminate.

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Verified for the Mercedes-Benz E320

Catalytic converter failure is common and may cause a Check Engine Light to illuminate.

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Verified for the Mercedes-Benz E320

Bad spark plug wires can cause misfires; the Check Engine Light may illuminate.

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Verified for the Mercedes-Benz E320

The mass air flow (MAF) sensor tends to fail. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.

3 Reports
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Verified for the Mercedes-Benz E320

The mass air flow sensor tends to fail causing poor fuel economy and Check Engine light illumination. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.

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Verified for the Mercedes-Benz E320

The mass air flow sensor can fail, resulting in poor fuel economy and Check Engine Light illumination.

5 Reports
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Verified for the Mercedes-Benz E320

The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.

13 Reports
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Verified for the Mercedes-Benz E320

A rough running motor or lack of power can be caused by a failed distributor cap or rotor, ignition wires (or their resistors), or valve cover gasket leaks. If the valve cover gasket leaks, oil can pool where the ignition wire resistor connects to the spark plug. The resistor can fail and the spark plug may not fire because of a short circuit through the oil.

2 Reports
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Reported by Rob in VA and 1 other for the Mercedes-Benz E320

The check engine light illuminated. An OBD reader confirmed a problem with the Secondary Air Injection System. I also noticed a loud roaring type noise for the first two minutes after vehicle starting. The problem was traced to a failed Secondary Air Injection Air Pump. Dealer wanted $1,300 to replace. I sourced a Bosch pump for the application and replaced it myself for around $450.

2 Reports
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Reported by Metapieman for the Mercedes-Benz E320

Steering control arms are a fairly expensive replacement to have done - here in AZ all the rubber components perish before their expected time, causing erosion and damage that can only be fixed by full replacement. Next time you take your car in for routine maintenance, have them check over the front end to make sure that you're still in good shape

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Verified for the Mercedes-Benz E320

Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running); the Check Engine Light may also illuminate. Diagnoses of the ignition system will be necessary to determine which components are at fault.

15 Reports
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Verified for the Mercedes-Benz E320

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.

63 Reports
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Verified for the Mercedes-Benz E320

The release tab for the center console can fall off unexpectedly.

6 Reports
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Verified for the Mercedes-Benz E320

The release tab for the center console can fall off unexpectedly.

10 Reports
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Verified for the Mercedes-Benz E320

The lower control arm bushings can wear and crack, resulting excessive movement at the control arm pivot point, leading to irregular and premature tire wear. Worn Ball joints can also cause similar tire wear symptoms. I some cases it may be necessary to replace the lower control arm, including bushings & ball joint to correct this concern.

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