OK, so this is a 2012 ML350 Blue-tech with around 31,000 miles on it. Lately when it is warm (either by driving for 30 minutes or more, or by outside temperature of 80 plus), it has been making the strangest front end groaning noise when coming to a stop and when pulling away. It sounds like the front end suspension is “groaning”. It does’t have to be a hard stop, gentle will do just fine. The car comes to a halt, the front end dips slightly - “groooaaan” (perhaps more on the rebound than the initial dip). You start up again, the front end unloads, and “groooaaan”.
Very disconcerting on a car as smart as this. Tom and Ray know this car - this is the one with the “smart radio” (switches channels at voice command…)
The dealer is stumped. They have the car for the third time now and even though both a mechanic and the shop foreman have been shown the problem (taken for a test drive ), they have been unable to come up with either a diagnosis or a fix. They replaced the front sway bar links once to no avail.