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Resources for the Repair and Maintenance of your Mercedes-Benz S500

Mercedes-Benz S500 Models:

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Mercedes-Benz S500 Problems

Miscellaneous -- Verified

The door for the vanity mirror (or the frame for the door) can break; due to a redesign, the mirror "cassette" will need replacement.

Electrical & Lights -- Verified

CD changers, command units, voice control units, PSE units, and Tele Aid units are prone to failure, especially in early models.

Brakes -- Verified

The brakes may begin to squeak at about the 50 percent wear point. This is due to the size and material used for the brake pads and rotors.  The brake rotor surfaces become uneven, causing a lip to form at the outer edge. This will generally require replacement of the rotors when the pads are worn (pad life varies depending on driving style and terrain).

Engine -- Verified

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.

Drive Train -- Verified

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.

Mercedes-Benz S500 Recalls (Recent)

Electrical & Lights, August 1, 2008

RepairPal Expert Overview:

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.

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Electrical & Lights, September 29, 2006

RepairPal Expert Overview:

The instrument cluster illumination may fail. This may result in difficulty reading the gauges, indicators, and speedometer. Not being able to see the cluster may lead to an accident. Dealers will replace the instrument cluster modules. This recall started on September 29, 2006. 

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Engine, April 22, 1996

Summary: THE DRIVE BELT PULLEY ON THE ENGINE CAN DEVELOP FATIGUE CRACKS IN THE METAL AND BREAK. IF THE DRIVE PULLEY BREAKS, THE CAR WOULD NOT HAVE ENGINE COOLING, BATTERY CHARGING, AND/OR POWER STEERING.

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Heating & Air Conditioning, May 22, 2000

RepairPal Expert Overview:

The blower motor regulator may overheat and may cause damage to the surrounding plastic, insulation and wiring. Dealers will replace the blower motor regulator.

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Suspension & Steering, July 2, 2007

RepairPal Expert Overview:

The hose may corrode due to extensive exposure to humidity. This may cause fluid leakage onto the catalytic converter. This would present a fire hazard. Dealers will a new high pressure distrution hose.

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Mercedes-Benz S500 Questions and Answers

S500GM, 1994 Mercedes-Benz S500, Beverly Hills, CA

Hi,
I need to find out the full and proper plug lead orientation for my 1994 S500 W140 V8. I have installed new plugs and rotor arms and distributor caps, I just need the orientation now of which p...

melvin corea, 1994 Mercedes-Benz S500, Downey, CA

I started to remove the brake pads off the car. as soo i removed all four bolts, some green liquid started to leak. installed all four bolts back into place. can you guide me in how to replace fron...

vesel4uk, 1994 Mercedes-Benz S500, Selawik, AK

hi i have problem with auto gear box on my mercedes s500,so the problem is that i dont have rear gear ,but front 1234 i have ,so where can be the problem thanks

Visitor, 1994 Mercedes-Benz S500, North Hollywood, CA

belt broke

milad, 1994 Mercedes-Benz S500, Huntington, WV

I have a Mercedes S500...I lost the vaccume to the drivers side door and it doesnt suck the door closed. When I turn on the air conditioner the heat comes out the drivers side and passenger side v...

Write a Review About Your Car

Mercedes-Benz S500 Reviews

Mercedes Benz automobiles are a real joke. I have two of them and they are always in the shop. Great for the mechanics but not the owners. For what these overpriced vehicles cost, they should easily last 250k miles. Yet, they fall apart starting at about 80k. If you add up the covered and uncovered costs for repairs on my 2000, S-500, it would be well over $25,000. IMH, Mercedes Benz over engineer's there vehicles without proper reliability testing. Just like Microsoft, they let the consumer work out all of the bugs at the consumers expense. I am a qualified,six figure income earner that will be purchasing additional automobiles and feel that all of the hype surrounding these "fine automobiles" is all marketing and sales propaganda. Save yourself a lot of grief and money and buy a Lexus or Acura. I am.

P.S. My Silverado Truck is much more reliable and its a Chevrolet.

I discover that my 2000 mercedes s 500 is overheating but the guage never go high and we notice coolant droppings under the car , someone said its the heater hose, can that cause overheating?

Just got this car week ago from engineer that told me he has own this car for 10years, i check everything (so i tough) i forgot to check if cd was working. I notice that when I press cd (radio) keeps giving me no cartridge? I check and was in, I tried to eject and will not. How do I fix this? I read some info in web, allot of comment about cd cartridge worn out, its known trouble, one suggested removing battery and system should re-boot and will recognize cd? This I am hesitant to do. Any suggestion. OR SHOULD I JUST GO FOR AFTER MARKET BLUETOOTH AND CONNECT TO RADIO?

I’ve owned my S500 2001 model 78000 5 years now. I purchased it from a Doctor; he owned it 6 years FMBSH. I had a few issues with the car but was sorted without too much cost. The Airmatic pump was the highest replacement cost around $1000. But it did last 12 years in all weather. The interior is as new as is most of the bodywork. Couple of area’s starting to show bubbling paint, not covered by MB as is up to 9 years for under paint rust. Have to wait for a hole in the body before warrantee will repair under the 30 years. I have own three S500 V8’s and would highly recommend them from SE500 1986 to 2001 as reliable as anything on the road today (2013) Most of the issues with the car’s model have been resolved. Go for MBFSH and check to see the previous work carried-out.

I just bought the 2004 S500 today. The test drive is excellent!
Hope nothing will expose to me later!
I have checked the Carfax report the 5 old owners seems to have starting problem! But when I cranked the car today it fired up instantly!