Great power, terribly expensive to maintain
March 13, 2018
I bought my 08 Grand Cherokee with the thought of diesel reliability, fuel savings, and towing capacity... The day after I drove it home I could smell exhaust in the car, turns out it had a bad injector seal and glow plug issues. Dealer only repairs around 2400 to fix. Later that year I towed a camper, 4500lbs, it did great! The front wheel bearings went out shortly after that trip, about 700 to fix those. There was a small oil leak from day 1, which eventually turned into a quart a week leak, back to the shop, found a bad oil cooler, about 2500 to have that replaced and have been chasing exhaust leaks under the hood for 2 months since... Now the exhaust catalyst has a crack and the part alone is 900. This has been by far the most EXPENSIVE engine I've ever owned!
The jeep itself is a great vehicle! In fact part of the reason I bought it was because I have another 2008 Grand and LOVE it. It has the 3.7l gas engine and we haven't had an issue at all with it!
When it runs it really is a pleasure to drive. This engine really does well on fuel and torque. I've never driven a vehicle that handles this well no matter the road conditions.
Mercedes used to be the most reliable diesels on the road, but, since emissions laws have become the most frustrating thing I've ever owned. STAY AWAY from that om642 3.0l engine unless you have deep pockets.