Mercedes-Benz ML350 vehicles have been subject to various recalls for problems with power steering, accelerator pedals and trailer hitch manufacturing defects. Registered vehicle owners should have received notification of these recalls by mail with instruction on where to bring the cars for free repair.
In 2003, Mercedes-Benz recalled 211,000 M-class vehicles for a hose clamp defect that could result in loss of power steering fluid and ultimately damage the power steering pump. A subsequent recall was conducted in 2008 because, according to the National Highway Traffic Safety Administration (NHTSA), repairs performed on vehicles recalled in 2003 were not sufficient to prevent future power steering problems.
In December 2006, Mercedes recalled certain M-class vehicles for manufacturing defects in the accelerators that could make it difficult for drivers to operate the accelerator. In January 2007, authorised dealers began inspecting and repairing the mounting nuts of the accelerator pedals on affected vehicles.
In 2008, Mercedes recalled certain 2006-2008 model year GL and ML vehicles equipped with Flex-N-Gate trailer hitches for not meeting performance specifications. Per the NHTSA, the trailer hitch receiver may separate from the attachment bar and create a road hazard or crash.