Mercedes GLK250 Bluetec reliability
I’m looking to get a new work commuter this fall and I’ve been eyeing up a GLK 250. Normally I don’t pay much attention to a modern Mercedes diesel, but I didn’t realize these had the 2.1 twin turbo OM651, which I know is a very popular motor overseas and lots of taxis go upwards of 1 million kilometres with them.
It also gives me some peace of mind that they use it in sprinter vans. And from all the research I’ve done, people generally seem to like them, and they are generally regarded as more reliable than the V6 Bluetecs.
I put a LOT of highway miles on when I’m working, and live in Canada and have to drive in bad winter weather. I also have a small camper and small boat, so the idea of a little 4 cylinder SUV with decent ground clearance, awd and fuel economy with a tow hitch sounds like a great all-rounder.
They are pretty reasonably priced on the used market for a cheap low mileage one compared to everything else, and it’s pretty enticing tbh.
Does anyone in here own one? Or work on them? Any testimonials/common issues to worry about?
Posted Aug 1, 2026, 3:42 AM UTC