What are some of the mercedes ml power tailgate problems?

The Mercedes ML has issues with the liftgate that it will fail to latch or remain upright. With enough weight, it could also break off or become bent.The motor is likely at fault here, but You have to test for a signal at the motor when You press the raise/lower buttons from all three positions plus the remote. To change out the motor that raises and lowers a liftgate, You will need to remove the interior trim panels in the cargo compartment on the side where the motor is located. This may require a significant amount of disassembly. Liftgate pulls down motors is included on a vehicle to add convenience. But malfunctions in the system can cause safety concerns.