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Problems for specific Mercedes-Benz SL320 years:

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Most reported 1997 Mercedes-Benz SL320 problems

 

Verified for the Mercedes-Benz SL320

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.

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Verified for the Mercedes-Benz SL320

A fluid leak from the front of the vehicle may be a result of a worn steering dampening shock. Our technicians tell us that if a leak is noted from the dampening shock it should be replaced.

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Verified for the Mercedes-Benz SL320

A coolant leak may develop from the water pump. When replacing the water pump, the drive belt tensioner should be inspected and most likely replaced as well.

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Verified for the Mercedes-Benz SL320
The climate control system can fail or perform erratically due to internal wear in the climate control unit buttons.
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Verified for the Mercedes-Benz SL320

The emissions air injection pump can seize, causing a loud squealing noise followed by smoke from the drive belt. If the engine is not turned off, the belt will break, turning on the alternator/battery warning light.

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Verified for the Mercedes-Benz SL320

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.

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Verified for the Mercedes-Benz SL320
A knocking noise from the front end can be caused by cracked strut tower bushings.
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Verified for the Mercedes-Benz SL320

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).

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Verified for the Mercedes-Benz SL320

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

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Verified for the Mercedes-Benz SL320

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.

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Verified for the Mercedes-Benz SL320

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.

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