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Problems for specific Mercedes-Benz SL500 years:

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Newest reported Mercedes-Benz SL500 problems

 

Verified for the Mercedes-Benz SL500

Bad spark plug wires can cause misfires; the Check Engine Light may illuminate.

4 Reports
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Verified for the Mercedes-Benz SL500

A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.

    4 Reports
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    Verified for the Mercedes-Benz SL500

    The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.

    7 Reports
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    Verified for the Mercedes-Benz SL500

    A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.

    6 Reports
    Me Too

    Verified for the Mercedes-Benz SL500

    A refrigerant leak may develop from one or more of the following AC components: AC compressor, hose manifold for the compressor, or the evaporator core. The loss of refrigerant can cause poor AC performance. Our technicians tell us that proper leak diagnoses should be performed in order to determine the cause of any refrigerant loss.

    11 Reports
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    Reported by JonathanB1 for the Mercedes-Benz SL500

    Xenon bulb was replaced but stopped working immediately. Replace control module (ignitor) for $625 (Mercedes part) + one hour labor.

    1 Report
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    Reported by JonathanB1 and 2 others for the Mercedes-Benz SL500

    Replaced and installed at an independant mechanic: Pump $1,600.

    3 Reports
    Me Too

    Verified for the Mercedes-Benz SL500

    The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

    40 Reports
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    Verified for the Mercedes-Benz SL500

    Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.

    10 Reports
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    Verified for the Mercedes-Benz SL500

    The lower control arm bushings can wear and crack, resulting excessive movement at the control arm pivot point, leading to irregular and premature tire wear. Worn Ball joints can also cause similar tire wear symptoms. I some cases it may be necessary to replace the lower control arm, including bushings & ball joint to correct this concern.

    16 Reports
    Me Too

    Verified for the Mercedes-Benz SL500

    The head lamp wipers are easily damaged, especially by automatic car washes.

    9 Reports
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    Verified for the Mercedes-Benz SL500

    Due to exposure to the sun, lenses for head lights may become opaque (cloudy or hazy). This reduces the effectiveness of the lights. Our technicians tell us plastic polishes can improve the clarity of the lenses, but replacement of the lamp housings is the only way to regain the full intensity of the lights.

    9 Reports
    Me Too

    Verified for the Mercedes-Benz SL500

    The early versions of the central gateway module (which allows different systems to communicate with each other) have software problems.

    4 Reports
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    Verified for the Mercedes-Benz SL500

    The cooling system hoses may fail unexpectedly. The hoses can look good on the outside, but the rubber can degrade and erode on the inside. If not carefully checked, the hoses can burst at any time.

    6 Reports
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    Verified for the Mercedes-Benz SL500

    The climate control system can fail or perform erratically due to internal problems with the climate control button electrical contacts. Replacement of the climate control assembly is commonly required to correct this problem.

    11 Reports
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