The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.
Car problem reports
Problem with your car? See what our experts say or submit your own.
Most reported 2007 Mercedes-Benz ML500 problems
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.
An engine oil leak may develop from the oil level sensor. Replacement of the leaking sensor will commonly correct this concern.
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.
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.
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.
Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.
The brake light warning message for a bulb out may be displayed. Our technicians tell us the tail lamp housing may melt and distort causing a poor connection at the bulb. The lamp housing should be replaced to correct this condition.
The tailgate latch may stick causing a drain on the battery while the vehicle is parked.
A problem with the ball joints can cause a creaking noise. There is an updated part to remedy this problem.
Bolts that connect the automatic tailgate actuator lever to the tailgate can break. The broken bolts need to be drilled out and the holes re-threaded before a new bolt can be installed. If you hear any unusual noises when raising or lowering the power tailgate, have the mounting bolts inspected to make sure they are tight so the problem can be repaired before the bolts break.