I've had my ML430 for about 1 year and have spent close to $5000 in repairs. I wish I researched more on this problematic SUV. I've soon realized I am not the only ML owner that feels that way. After 2 days of owning it, the transmission had issues. It wouldn't shift out of 2nd gear (common prob), Gas guage not working properly (common prob), then Catalytic converter started making noise($1500 to replace), Window/Door lock switch panel didn't work (common prob NOTE: there's a relatively easy DIY fix for the window. Now the it won't start because the factory immobilizer has died. Let alone the normal maintenance.
Decent looks (I have side running boards and the wide fenders), V8 engine sounds good
Where do I begin? Fuel economy, Reliability, Reliability, Reliability, Better quality electronic components....oh and Reliability!