2003 Mercedes-Benz E320 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz E320

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2003 Mercedes-Benz E320
$
488
to $
920
2003 Mercedes-Benz E320
$
158
to $
342
2003 Mercedes-Benz E320
$
370
to $
2,872
2003 Mercedes-Benz E320
$
340
to $
1,694
2003 Mercedes-Benz E320
$
231
to $
698

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.

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.

Secondary Air Injection Pump Fails

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.

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2003 Mercedes-Benz E320 Questions

Transmission issues. (1 answer)

Transmission jerks when taking it out park to put in reverse or drive, and when in drive, it will not go into 2nd gear.... Is it an electrical component issue or the transmission itself that needs replaced....

Wipers don't work, radio don't work, and dash lights don't come on,need solution (1 answer)

Try checking fuses still not working

On my 03 e320 I have very small clear tubes running down on each side of the car, looks to have some type of fluid in them. What is those tubes for (1 answer)

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2003 Mercedes-Benz E320 Recalls

Incorrect Software Calibration May Cause Fuel Pump to Remain Powered in a Collision

There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.

Sensotronic Brake Control System May Default to Basic Hydraulic Mode

Due to deterioration of the wiring harness connection or failure of the hydraulic pump, the sensotronic brake control (SBC) system may default to the hydraulic back-up mode. In the back-up mode, the driver has braking power sufficient to stop the vehicle, but greater brake pedal pressure is required and brake pedal travel will be noticeably longer. Dealers will install a bracket and replacement ground wire to the SBC pump unit on all affected vehicles. Additionally, dealers will inspect and replace the SSC pump unit in certain SL models. The Mercedes-Benz recall numbers are 2005070007 AND 2005110001.

 

The Sensotronic Brake System May Be Disabaled

High mileage combined with a high number of brake actuations, or a high brake actuation frequency, can cause the pump motor of the SBC to run out of permissible tolerances. As a result, excessively high pressure may build the high pressure line of the brake system. If this occurs, the system will switch into the hydraulic function mode as designed. Sensotronic brake control is disabled when the brake system is functioning in the hydraulic mode. Dealers will inspect the SBC hydraulic unit and replace it if necessary to correct this concern. The Mercedes-Benz recall number is 2004 050014.

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2003 Mercedes-Benz E320 Reviews

Rated
based on 1 customer reviews
The MB E320 is a great car overall, we have been very pleased with it since buying it used last year. Pros: Very comfortable, yet responsive ride. Handles the snow surprisingly well. Huge trunk and reasonably spacious back seat. Fits 3 in a pinch. Solid feel, good fit and finish, and a great safety record. Better gas mileage than I expected. We get 30+ on the highway with the V6. Cons: Repair...

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