Any high mileage GL350?




My 2011 R350 BlueTEC is dying. I'm in Illinois and it's so f***ed up. I'm so mad. It was over $70k special order and it's at 92k miles.




But yes it has been a very comfortable vehicle--when it is running and not sitting at the dealer.




But yes it has been a very comfortable vehicle--when it is running and not sitting at the dealer.




But yes it has been a very comfortable vehicle--when it is running and not sitting at the dealer.
The Best of Mercedes & AMG








But yes it has been a very comfortable vehicle--when it is running and not sitting at the dealer.
Turbo inlet seal: 75k
Oil cooler seal: ~75k
DEF tank replacement: ~79k
Transfer case output shaft seals: ~85k
NOx sensor replacement: ~95k
The Oil Cooler and DEF tank (which I replaced in 30 mins myself) failed around the same mileage as yours, in my 2010.
This time around, in my x166, I anticipate the Oil Cooler and DEF to fail again. I should be at the 70k mark just in time for Christmas.
.My NOX was replaced under warranty at 20k miles and 40k miles.




178K miles and purring right along. Had the exhaust after treatment done. Bought the GL350 with 96k and have serviced it well. Oil changed every 5k with Rotella T6 5w-40, replaced the transfer case chain due to no fluid (oops)(chain only), trans fluid every 30k’ish, differentials serviced when trans serviced and it’s showing an average fuel economy of 27.2 mpg. Love the car and plan on it running to 300k without any problems.
Now, I travel a 3 state territory and when it cranks up my shortest trip is an hour down the interstate. This week was over 1k miles. I agree, these are not city vehicles.
**3/2023**
Update - Just turned 190k, no problems. Now, the front lower control arm bushings are starting to get stress tears and will be replaced in the next few months but that’s just wear & tear stuff in my book.
**10/2023**
Update - just turned 210k, replaced front end parts struts, ball joints, the works. None of it really needed doing but now I know…… Other than that maintenance, nothing but oil changes @ 5k. Think the motor mounts are done, again maint stuff. Oh yeah, dash display crapped out. Got an eBay unit for ~$100. MUCH better than the $1,700 price from the dealer. Only downside is it does not show the vehicle mileage.
Last edited by olesouthernboy; Oct 24, 2023 at 10:28 PM.




178K miles and purring right along. Had the exhaust after treatment done. Bought the GL350 with 96k and have serviced it well. Oil changed every 5k with Rotella T6 5w-40, replaced the transfer case chain due to no fluid (oops)(chain only), trans fluid every 30k’ish, differentials serviced when trans serviced and it’s showing an average fuel economy of 27.2 mpg. Love the car and plan on it running to 300k without any problems.
Now, I travel a 3 state territory and when it cranks up my shortest trip is an hour down the interstate. This week was over 1k miles. I agree, these are not city vehicles.
**3/2023**
Update - Just turned 190k, no problems. Now, the front lower control arm bushings are starting to get stress tears and will be replaced in the next few months but that’s just wear & tear stuff in my book.
**10/2023**
Update - just turned 210k, replaced front end parts struts, ball joints, the works. None of it really needed doing but now I know…… Other than that maintenance, nothing but oil changes @ 5k. Think the motor mounts are done, again maint stuff. Oh yeah, dash display crapped out. Got an eBay unit for ~$100. MUCH better than the $1,700 price from the dealer. Only downside is it does not show the vehicle mileage.
sitting at 263K, Has a broken right side exhaust manifold which is getting replaced next week & I replaced the A/C compressor 10-15K miles ago. Still using no oil between oil changes. Needs the transfer case chain changed, again, which I have and will do it in the next month or two (will be #3). .
sitting at 263K, Has a broken right side exhaust manifold which is getting replaced next week & I replaced the A/C compressor 10-15K miles ago. Still using no oil between oil changes. Needs the transfer case chain changed, again, which I have and will do it in the next month or two (will be #3). .
sitting at 263K, Has a broken right side exhaust manifold which is getting replaced next week & I replaced the A/C compressor 10-15K miles ago. Still using no oil between oil changes. Needs the transfer case chain changed, again, which I have and will do it in the next month or two (will be #3). .







