Check Engine Light on




Car has 4K .... I was down almost a quart of oil.
I also have a bit of a oil leak right at the top front of the motor which could have been adding to the consumption...
Any thoughts of what this might be?
I've since filed the car with gas and checked the cap and I topped up the oil.




The M157 does use a bit of oil on break in.... In conjunction with the slight oil leak at the top of the engine... I'm not really worried.




This is my second Gl63.... The last car I drove 17K... It required a couple of top offs... In fact the manual tells you to expect it.... I've talked with 3 service managers at three different dealers. I'm told that this is normal. I've also seen multiple threads on the subject as being normal.
Soooo maybe your M157 was built on a Monday. I bet if you check it tomorrow... It is down just a little.
This is my second Gl63.... The last car I drove 17K... It required a couple of top offs... In fact the manual tells you to expect it.... I've talked with 3 service managers at three different dealers. I'm told that this is normal. I've also seen multiple threads on the subject as being normal.
Soooo maybe your M157 was built on a Monday. I bet if you check it tomorrow... It is down just a little.
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But seriously, I dont really push my cars either... Have always followed break in procedures and I wait till all temps are out of the blue before I even run the car remotely freely. I had never checked the oil on the first car till about 5K where I changed the oil... I too was shocked to see that it was down almost a qt at that point... So I monitered it from then on... So no surprise here on my 15....plus plenty of forum searching and conversations with MB service. That it does the same thing.
Check yours and report back.
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It hardly registered at the bottom of the dipstick gauge... I put in 7/8s of a qt. needless to say that I hadn't gotten a check oil error.
I suggest checking it every month and to keep a qt in your trunk. These cars use oil especially during break in.
Here is the oil leak at the top of the engine:
Just checked I'm dead center of the hash marks... Oil dipstick ... Says I'm in range. I have 2400 miles...that being said at 1850 miles I got the rear diff fluid serviced as per recommendations and they may have topped off the engine oil at that time though not mentioned on the record
Will keep and eye on it
And thanks for reporting on this and keeping us updated!
Last edited by PeterUbers; Dec 28, 2014 at 12:15 PM.




Just checked I'm dead center of the hash marks... Oil dipstick ... Says I'm in range. I have 2400 miles...that being said at 1850 miles I got the rear diff fluid serviced as per recommendations and they may have topped off the engine oil at that time though not mentioned on the record
Will keep and eye on it
If 2,400 ....... Why the rear diff so early?
4matic?




That car of yours is a beast! Whole different league than our cars over here in GL land.... I think you have third row envy with a little snow action desire on the side.
Will definitely report back
What oil do you guys use to top off?

Is your limited slip aftermarket, inasmuch as I did not think there was a limited slip option for the GL63? I only ask in case I need to get my differential fluid checked as 1,750 miles.




the check engine light was on because of a failing Boost Pressure Control Transducer that works with the Turbo system. It also caused a slight flutter in the idle while waiting for a stop light.



