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Mercedes-Benz 560SEL Problems

RepairPal has identified the most common problems with the Mercedes-Benz 560SEL based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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25
Known Problems

Power steering hoses and components can develop leaks.

The timing chain and timing chain guides wear; they should be replaced every 100,000 miles.

The fuel pump and/or fuel pump relay can fail, causing the car to crank over but not start. Proper diagnoses will be necessary to confirm if the pump or relay is at fault.

A refrigerant leak may develop from one or more of the AC hoses. Proper leak detection procedures should be followed if refrigerant loss in encountered. Replacement of any leaking hoses will we required to restore proper AC operation.

The expansion valve can get stuck and is difficult to replace.

It is not uncommon for the idle air compensator to get stuck in one position, resulting in the engine idle speed (rpm) being too high or too low. Replacement of the failed compensator may be necessary to correct this concern.

The instrument cluster, along with the turn signal and wiper combination switch, can fail.

On high mileage vehicles, rear spring wear may cause the rear end to sag.

The rubber boot connecting the throttle body to the intake manifold tends to crack. This can cause hard starting, rough or erratic idle, and engine performance problems.

Internal leaks and a stuck level control valve can cause problems with the load leveling suspension in the rear; the vehicle may ride harshly.