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Problems for specific Mercedes-Benz SL320 years:

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Most reported Mercedes-Benz SL320 problems

 

Verified for the Mercedes-Benz SL320

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.

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Verified for the Mercedes-Benz SL320

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.

6 Reports
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Verified for the Mercedes-Benz SL320

A coolant leak may develop form the Radiator due to degradation of its plastic components. Replacement of the failed radiator will be necessary.

5 Reports
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Verified for the Mercedes-Benz SL320

Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.

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Verified for the Mercedes-Benz SL320

High mileage vehicles may develop a leak from one or more of the transmission oil seals.

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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

Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.

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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.

4 Reports
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Verified for the Mercedes-Benz SL320

Vehicles with automatic level control that ride harshly in the rear (no give in the suspension) may have one or both dampening actuators which have failed. It is commonly recommended the actuators be replaced in pairs.

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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

As brake fluid becomes dirty over time, it can cause a failure of the anti-lock brake system (ABS) modulator assembly. Our technicians recommend a complete brake system flush every two years to help prevent this issue.

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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 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 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.

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Verified for the Mercedes-Benz SL320

One or more of the following steering linkage components may wear prematurely;  tie rod ends, drag link, or idler arm. Our technicians remind us the wheel alignment should be checked and adjusted if any of these items are replaced.

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