Mercedes-Benz R500 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercedes-Benz R500
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Mercedes-Benz R500 ProblemsInternal Component Failure May Cause Rough Shifting
Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.
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. Communicating these specific symptoms to your technician can save diagnostic time.
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.
Mercedes-Benz R500 Questions2006 MB R500 came to our shop with codes P0171 & P0174 for lean conditions in bo (1 answer)
car had multiple codes, and issue w/ suspension, and a steering angle sensor issue, got all those cleared up, now cant get rid of these lean codes.
problem sounded as if the battery was not charged fully. replaced with new battery, it still does it, but with the new battery it will start usually after removing key and trying again.
dealer says he went through the oil pan to replace the valve body and has notice that a bolt that holds the valve body in place is broken and he has to charge 1700 to replace the bolt
Mercedes-Benz R500 RecallsIncorrect 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.
The accelerator pedal may be loose due to insecure mounting studs and nuts. This could cause difficulty operating the accelerator. Dealers will inspect and install the mounting nuts of the accelerator pedal if necessary. The Mercedes-Benz recall number is 2006120008. This recall began on January 16, 2007.
The wiring harness to the starter motor may be routed incorrectly. This could lead to chafing of the protective sleeve on the engine mount cover. Over time, this chafing could wear through the sleeve and expose the underlying wiring. Damaged wires may result in a electrical short and loss of function of the vehicle's electrical system. Dealers will inspect the wiring and correct its routing. If necessary, the protective sleeve and/or wiring will be replaced. This recall is expected to begin on May 12, 2006. The Mercedes-Benz recall number is 2006040002.