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Problems for specific Mercedes-Benz ML55 AMG years:

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Newest reported Mercedes-Benz ML55 AMG problems

 

Verified for the Mercedes-Benz ML55 AMG

An engine Oil leak may develop from the PCV vent housing on the valve cover and/or the inspection plate on the front of the engine.

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Verified for the Mercedes-Benz ML55 AMG

The rubber bond in the harmonic balancer can decay, which causes the balancer to move and work its way toward the timing cover. If the balancer comes into contact with the timing cover while the engine is running, it will fracture and damage the cover and potentially other surrounding parts. The harmonic balancer should be inspected at every service.

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Verified for the Mercedes-Benz ML55 AMG

The electrical connector at the automatic transmission may leak fluid. Over time leaking fluid could migrate through the wiring harness and damage the transmission control module. If that happens a new harness and control module may be necessary to correct the problem.

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Verified for the Mercedes-Benz ML55 AMG

An exhaust leak may develop due to cracked welds on the front catalytic converter. Replacement of the catalyst is recommended; re-welding of the catalyst is discouraged because it is an emissions device.

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Verified for the Mercedes-Benz ML55 AMG

A no start condition may develop due to an anti-theft system fault. If the drive authorization module fails to recognize the keys, the engine will not start. In many cases, a new module and keys will be needed to correct this problem.

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Verified for the Mercedes-Benz ML55 AMG

Release cables for the rear seat (second row of seats) tend to stretch or break requiring replacement.

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Verified for the Mercedes-Benz ML55 AMG

Due to slipping clutches in the transfer case, a shudder or rumbling from the center of the vehicle may occur, especially when turning at slow speeds. If the clutches are not too badly worn, changing the fluid will fix this problem. Otherwise, the transfer case will need to be disassembled to change the clutches.

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Verified for the Mercedes-Benz ML55 AMG

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 ML55 AMG

An engine oil leak may develop from the oil level sensor. Replacement of the leaking sensor will commonly correct this concern.

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Verified for the Mercedes-Benz ML55 AMG

The rear corner panels on either side of the tailgate (black plastic) can crack or break. They should be cut off and the adhesive removed before new panels are glued on.

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Verified for the Mercedes-Benz ML55 AMG

Various electrical problem may develop due to a failed "all activity module". Our technicians tell us that proper diagnoses is required to be sure any electrical faults are being caused by the failed module.

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Reported by ml55-amg for the Mercedes-Benz ML55 AMG

Leaking at top driver side of the tank at the hose clamp/hose location. Possibly crack/broken plastic hose connection.

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Verified for the Mercedes-Benz ML55 AMG

Electrical switches in the door latches can fail, causing the door locks to rapidly actuate up and down multiple times when the locks are activated by either the keyless remote or door lock switch. A new door latch will need to be installed.

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Verified for the Mercedes-Benz ML55 AMG

These vehicles have torsion bar-type springs for the front suspension. If the vehicle appears to be lower on one side (in front), the hard plastic insulator for the torsion bar may have cracked and split. There may also be a squeaking noise (when driving over bumps) from below the front seats if this insulator has broken.

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