GL320 diesel engine crashed
On the day after Thanksgiving, I started the car and drove for three blocks. The engine stopped without any warning. The truck been towed to dealer at 50 miles away, and they inspected the car, and then told me that I need another engine.
I was shocked when I heard the bad news, and question why that engine broke so easily. I live in Kentucky country area and 95% driving on high way. I mostly maintained the car through local Indy, and oil changed every 6-7000 miles by using specified Mobile1 ESP 5W-40 oil and specified oil filter. I also follow the schedule to perform schedule-C service through dealer.
Since it already ran out of warranty (only good up to 50000-mile), the dealer told me that I have to spend another $13K to replace a rebuild engine.
This is the worst car I ever drove, and the reliability is the worst as well. There are many issues in two years:
Engine oil cooler leaking $3,000
Two wheel bearings $1500
Some sort of emission sensor $600
This seems told me that name of Mercedes means elegancy with fragile quality like toy. It feels good in the early years, but not any more. The new design and components may good for the first few years, but much worse than 20 years ago.
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2008 GL320 4Matic - just dead
2008 E550 4Matic - Running Strong







Have you tried to go to your indy shop that you trust ? One of my previous leased cars ( 2008 E-Class) had a check engine light and dealer changed the engine because of that. I did not care, because that was a lease and they gave me E class as a loaner to drive for 2 months along with the check for $1,500 for inconvenience, but I'm sure CEL is not the reason to change an engine and can be fixed much cheaper.
I am worrying how to maintain on my E550. It also runs almost 84K miles. If the MB engine cannot stand more than 10K miles now, it's even worse than a Hyundai (I am not fan of Asian car, but it covered 10K miles or 10 year warranty)
In all my years on the forum, I don't think there's been many engine replacement issues. I do recall one where the wife drove it through some service intervals and low oil warning lights and voided the warranty, but then again if it wasn't properly maintained is it the engine or the person?
I'd recommend getting all of your service receipts together. I believe it's going to be imperative to show 100% complete maintenance per the schedule to have any chance of getting their attention.
Thanks.
I asked about a previous recall of crankshaft position sensor in late 2007. They told me that my truck was not on the affected list based on their database.
Since the car has been out of warranty, I may tow to other shop to get second opinion or replaced the engine. Dealer is asking for $13K for an engine and another 6+ weeks of waiting.
BTW, I got all the document to prove the maintenance were completed, and the last schedule C service was done one month ago in their shop, but they don't want to recognize the other oil change services which not done by dealership.
Last edited by alexssurf; Nov 29, 2012 at 09:44 AM.
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I'd check with dealer for availability of Mercedes rebuilt engine. It's just extra expense for you to have lots of diagnosis performed.
It's also good to understand that only thing you ever purchased from Mercedes was the original 4yr/50K warranty. The car itself was purchased from the dealer and it's the dealer you deal with. Good reason to be good friends with your dealer and for having your dealer do the maintenance. Lots more folks that have continually had dealer maintenance get special treatment than the folks that don't.








