GL 350 Oil Consumption
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 350
Likes: 106
From: Palo Alto, CA
2011 GL 350, P1 Package, HID headlamps, Blind spot assist, Parktronic, Wood steering wheel
GL 350 Oil Consumption
I'm seeing about one quart of oil consumed by my 2011 GL 350 every 5,000 miles. I'm now at 20,000 miles and this has been consistent so far.
When I recently changed my Diesel Fuel Filter, I saw a small amount of oil in the turbocharger inlet, which I know is normal.
Others seeing similar levels of oil consumption?
I think this is a good reminder that you do need to check your oil level periodically - I find with a 10k / annual change interval it's easier to forget about it than it was in the old days.
When I recently changed my Diesel Fuel Filter, I saw a small amount of oil in the turbocharger inlet, which I know is normal.
Others seeing similar levels of oil consumption?
I think this is a good reminder that you do need to check your oil level periodically - I find with a 10k / annual change interval it's easier to forget about it than it was in the old days.
MBWorld Fanatic!
Joined: Nov 2007
Posts: 1,425
Likes: 2
From: Minnesota
2015 Ram 2500, former 2013 GL350, 2007 GL450
I burn a little oil in my 07 GL450. Service is usually about every 13,000 miles on the computer and I often need to add oil at about 11,000 miles.
Super Member
Joined: Jun 2005
Posts: 597
Likes: 1
From: Monterey, CA
'97 E320
Were you a bit easy on the engine during break in? Generally speaking, engines need some proper load to seat in the rings when new...engine braking and varying RPM are some of the best ways to do this.
Zero oil consumption at 10k intervals on our '09 Bluetec, but 1qt every 5k is well within spec, so I wouldn't lose any sleep over it.
Zero oil consumption at 10k intervals on our '09 Bluetec, but 1qt every 5k is well within spec, so I wouldn't lose any sleep over it.
MBWorld Fanatic!
Joined: Dec 2004
Posts: 4,268
Likes: 253
about a quart every 10k miles on mine.
turbo diesels burn oil if revved as at low rpms their exhaust is very cool, but at higher rpms they run very very hot. wankel hot. oil is very hot in the turbo and seeps past the seals and gets blown into the intake.
at least the oil is used for forward momentum
turbo diesels burn oil if revved as at low rpms their exhaust is very cool, but at higher rpms they run very very hot. wankel hot. oil is very hot in the turbo and seeps past the seals and gets blown into the intake.
at least the oil is used for forward momentum
Thread Starter
Senior Member
Joined: Feb 2011
Posts: 350
Likes: 106
From: Palo Alto, CA
2011 GL 350, P1 Package, HID headlamps, Blind spot assist, Parktronic, Wood steering wheel
Especially given I was towing a 6,000 pound Airstream trailer for about 4,000 of the last 10,000 miles, sounds like I am in the ballpark in terms of oil consumption. If nothing else properly seated my piston rings, I'm pretty sure towing the Airstream up the Teton Pass would have done the job... 
Last edited by ddruker; Jul 26, 2012 at 03:50 PM.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Newbie
Joined: Feb 2017
Posts: 2
Likes: 0
GL350 2010
GL350 Oil Leaker
I have a 2010 GL350. At 125,000 miles it started using oil. No leaks anywhere under or around engine. I was adding a quart a week(250 miles). Took to dealer they replaced oil seals in engine $2700. After they were replaced, the car was still using a quart a week. I took it back and the dealer tested and said that one cylinder was scored and there was nothing they could do. They offered a new engine for $11,000. It has been a month and now I am adding 2 quarts a week (less than 300 miles per week). I am not sure what to do. The car runs great, no smoke, the exhaust looks clean and no oil leaks.
Any comments...would be appreciated.
Any comments...would be appreciated.
MBWorld Fanatic!
Joined: Dec 2004
Posts: 4,268
Likes: 253
Yes. An independent one. Although dealer assigns usually knowledgeable techs on tasks like this one so chance of error is small. But who knows. Problem is if you are using so much oil you will soon plug the dpf filter and truck will not run right.
Let us know.
Let us know.
Member
Joined: Mar 2016
Posts: 92
Likes: 6
From: Torch Lake, MI
2018 GLC 300
09 GL320 BlueTec
Were you a bit easy on the engine during break in? Generally speaking, engines need some proper load to seat in the rings when new...engine braking and varying RPM are some of the best ways to do this.
Zero oil consumption at 10k intervals on our '09 Bluetec, but 1qt every 5k is well within spec, so I wouldn't lose any sleep over it.
Zero oil consumption at 10k intervals on our '09 Bluetec, but 1qt every 5k is well within spec, so I wouldn't lose any sleep over it.
