kkoophotography

Hi. Just got a 2021 glb250 13k mileage. Very low mileage with Amg package with 20inch rims. The car said service A1 is due in 114 days.

want to know if you guys do 7500 miles oil change or wait until 10k miles to do it .

I drive city 90% about 40miles each day stop and go traffic. Want to maintenance and not get the m260 misfire chance . What other maintenance I can do to prevent the misfire.

TIA

ILoveNY

did u buy it certified?

I do it every 10k miles

kkoophotography

No

im the third owner. The second owner got the car at 6700 miles as certified. They did service B and change brake pads too. According to carfax at the dealer. Then I picked up the car at 12.9k miles. I have about 14k miles and car say 115 days until service. I just want to maintain to prevent misfire haha.

Odd Piggy

We average about 55 miles per day 60% highway/40% lower quality secondary roads with very little city driving. The actual trips are 75-125 miles with days off in between. Our oil change interval is 10,000 miles.

For mostly city/suburban driving with stop and go, our preferred shop recommends 7500 mile oil changes with period not exceeding 6 months.

As for preventing the misfiring, I’m not sure anything beyond maintaining the best lubrication can be done. The problem is due to excessive valve guide wear from lateral forces. It is a design defect that is said to have been fixed in late 2022. There is an extended warranty in the U.S. covering some, but not all of these failures.

SRNH

Attached find the "Service Sheet" for a '22 model, when you visit the MB Dealer ask someone in the Service Department for a copy of the '20. As you review the attached you'll notice it's an either-or trigger for a given service. One year or 10K miles whichever occurs first. For someone like me that puts 5-8K miles a year it's obviously less than 10K. I've read other threads and people say with the new oils 10K is reasonable.