Two problems related to steering have been reported for the 2008 Mercedes Benz ML320. The most recently reported issues are listed below.
While at freeway speeds the right front wheel bearing began to growl and continued to get worse until replaced at a dealer. It seems it is premature for a bearing to fail, the vehicle had been serviced at about 121000 miles.
At 57,000 the rack and pinon seals went out on the steering making the car extremely difficult to steer. Rear seat belts had never been used until 12/1/14 at which time I found they were not usable. They were locked into position. The service writer at the mercedes dealership said he owned the same model and had to replace his twice. Dealer and factory both refused to repair either item.