High Mileage W164
brakes @ 120,000
thermostat @ 145,000
all scheduled maintenance preformed on time.
hail storm in 2014 caused my insurance to repaint the entire car and replace windshield.
simply a wonderfully engineered and manufactured automobile.
Please keep replies on topic to my question.
Thanks!

My ml320 cdi 2006 has 320 000 km on it with no major issues. Recently changed icu electronic module for transmittion.
The secret is every 6000 km new man oil filter, new oil mb 229.51 gulf western (7.5 l and a bottle of Lucas oil stabisator 975ml). Every 15 000km add diesel injection cleaner together with DPF cleaner. Transmittion fluid need to be changed every 30 000 km.
This engine should go till 500 000 km without any issues if looked like this.
Good luck
Timing chain replaced at ~75k miles, and water pump at ~78k miles. Other than that just a couple of door lock actuators replaced.
Love the car. It runs great on the interstate at high speed but tows and does great in snow. I’m planning on keeping it for another 100k miles.
Last edited by DATL; Oct 21, 2019 at 08:40 AM.
The Best of Mercedes & AMG
I have a new 2021 GLS450 on order. I can only hope I get the same type of reliability out of my new MB.
Last edited by NCMountie; Aug 18, 2020 at 11:07 AM.
Only issue I considered non maintenance was Replaced belt tensioner & belt. And that was after 8 years and 31,000 miles.
Oh there is one gremlin I have yet to troubleshoot, the rear hatch sometimes stops midway when I press the close button. Then once I press it again it finally closes. This popped up about 3 years ago and have lived with it for now.
Last edited by azzurribaggio; Jul 22, 2021 at 05:32 PM.
Last edited by Nathan Herr; Aug 8, 2021 at 05:02 PM. Reason: I wanted to add a title
I have a X164 2007 GL 320 CDI with 280k miles. My rear sam got fried by a back sunroof water leak. I want to buy an used rear sam, but the part number varies in all of the in the last 4 digits, for example ZB 164 540 XX XX. In your experience, when you changed the rear sam, was this an issue. Did you need programing or just changing it was enough?
Best regards.
We bought it as a CPO car in 2012 w/60K miles, and for the first 9 years I was amazed at how few issues we had. Other than a rear wheel bearing and two rusted/cracked rear springs, nothing besides routine maintenance, and I towed our Nitro bass boat on long trips like a lunatic. Felt like I wasn't even pulling anything, even up steep grades.
Last year though, at maybe 210-220K miles, all hell broke loose. I had to have our shop fix two rotted brake lines, and the radiator, oil pan and transmission pan were also rotted. I think I paid about $6-7K to get all of that fixed last year, at which point I figured I was all in and driving it until it dies.
This year I started doing all the work myself. I recently changed the power steering pump, steering rack bushings and I'm just finishing up the transfer case chain which started skipping a couple of months ago.
As for service issues, so far just wear and tear stuff.. brakes, front wheel bearings, tensioners and belt. Also had to have the headlights polished as they yellowed a bit.
Never kept a new purchase vehicle this long before. Body and interior still in mint condition.




Was a disaster of a car.
Last edited by InTheBenz0; Nov 8, 2022 at 05:00 PM.







