Mercedes-Benz E320 Repair and Maintenance

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

Repair Estimates

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Mercedes-Benz E320
$
121
to $
798
Mercedes-Benz E320
$
545
to $
1,540
Mercedes-Benz E320
$
398
to $
1,175
Mercedes-Benz E320
$
571
to $
1,552
Mercedes-Benz E320
$
142
to $
318

Mercedes-Benz E320 Problems

Malfunctioning Regulators May Cause Blower Motor Failure

A malfunctioning HVAC blower motor regulator can cause the blower motor to operate below the requested speed or not at all. Updated regulators are available; the blower motor and cover need to be replaced at the same time to upgrade the system.

Failed Exhaust Catalytic Converter May Cause Rattle From Beneath Vehicle

When the engine is running, but the vehicle is not moving, a rattle heard from beneath the vehicle could indicate that one of the exhaust catalytic converters has failed. The substrate (the internal part of the catalyst that reduces emissions) can loosen and bounce around inside the canister section of the converter—the defective unit will need to be replaced. If this problem is ignored, the substrate can break down and reduce to a size that plugs the outlet pipe, which will cause a sudden loss in power.

Radiators Break Due to Degradation of the Plastic Tanks and Fittings

A coolant leak may develop form the Radiator due to degradation of its plastic components. Replacement of the failed radiator will be necessary.

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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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Mercedes-Benz E320 Reviews

Paid 2500 for it. I've had it almost three years all I've had down is replacement of lower front control arm and bought a battery. Love it rides great. Air condition didn't work when I got it but the heat is a beast and the ride is so smooth even at 120 mph
I have owned my wagon for exactly 13 months. I bought it with 104,000 miles, and I have put over 50,000 miles in that time. Most reliable car that I've ever had. Changed the oil every 7,000 mi (synthetic). Changed the brake pads once (routine maintenance). No expenditures at all. Still looks new. Will eventually put money into it and restore it completely (perhaps in a couple of years or so). ...
Bought this 1997 E-320 only 67 K always covered excellent condition Somehow it has a short that burns the fuse when trying to put it in gear. The fuse that controls the dash gages (gas,speedometer, engin idle,etc) and it says CHECK ENGIN. The radio and the A.C. work and it rides good other than all the gages out. My mechanic has no clue Is it the transmission sensor? Any clues?

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