Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.
Resources for the Repair and Maintenance of your 1991 Mercedes-Benz 500SL
1991 Mercedes-Benz 500SL
1991 Mercedes-Benz 500SL Problems
High mileage vehicles may develop a transmission fluid leak from one or more of the oil seals.
As vehicles age, various problems may develop with the hard and soft tops. If problems are encountered, it would be recommended to have a technician familiar with these tops perform the diagnoses.
The bushings for the shifter lever wear out to the point where they break and fall out. This causes excessive movement (loose feel) in the shifter lever and a clanging-type noise when changing gears.
The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.
1991 Mercedes-Benz 500SL Recalls (Recent)
Summary: DURING THE REMOVAL AND INSTALLATION OF THE AIR FILTER HOUSING WHILE SERVICING THE VEHICLE, IT IS POSSIBLE TO MISROUTE THE PREFORMED VACUUM HOSE AND DAMAGE THE CHECK VALVE IN THE VACUUM HOSE. IF THE CHECK VALVE IS DAMAGED, LOSS OF SUFFICIENT BRAKE POWER ASSIST WILL OCCUR.Learn more »
1991 Mercedes-Benz 500SL Questions and Answers
'My Soft Top on The Merc/500SL works Manually, and it Does not Operate Elictrical ( is it A Electrical Fault or is it a Hydraulic Fault, or What do I look for, and How can I make ...
MY ASR LIGHT COMES ON SOMETIME,APPLYING MY BRAKES 2/3 POWER TO THE REAR WHEELS, GOES OFF WHEN THE ENGINE IS OFF.
COMES AND GOES ON WHEN IT FEELS LIKE IT. I HAVE ONE TIRE THAT IS NEWER THEN THE OTH...
How to reset radio code. The words wait show up
The hard top now won't release and I was having trouble with raising and lowering the convertible top. I would have to push down on the switch to get activation.
1991 Mercedes-Benz 500SL Reviews
I just had a major problem my car just started blowing blue-white smoke only when I give it gas to take off took it to the shop my mechanic is pretty much like the engine is gone val seal but all my transmission fluid gone out of car also but I check all my fluids two days ago all was fine then yesterday it started smoking no los of power need some kind of help I think mechanic is trying to get me in with another engine to spend money. HELP!
I have been a Mercedes Benz Owner since The Early 196'0 And I can not Fault The Quality of The Mercedes, This is the first Mercedes SL 500 Convertable, that I now own, amongst 2 other Mercs which I currently own, I Find The SL 500 lots of fun to Drive, and highly recommend the Vehicle to any-one who belives in SAFE PRESTIGE MOTORING.
It is a Great Car/Roadster.it Performs when you require it to perform, It is also a Great Looking Vehicle.
Once you own one I strongly Believe that you will never Look Back, EVEN PRINCESS DIANA of the United Kingdom owned This Same Model .if its fit for a Princess I believe it tells many stories..
Many of T.V. Personalties and Movie Stars have also owned one of These Models.
I would not part with mine for All the Money or Replace it with A Imitation Japenese Vehicle, and State that it is one of The SAFEST ROADSTERS in the Market.
FRANK (SMOKEY) JANSZ
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