Did I do a bad?
The first thing was he said the differential oil needed to be changed at 2,000 miles. I read that has changed and is no longer required, what is the true requirement for this car?
In the end I refused the service contract, $2,500 for 4 years of oil changes and such per the published schedule. Was that a mistake?
I normally do my own oil changes and other maintenance. I've rebuilt transmissions, axles, ... I have the ability to change the oil. I've had dealer screw up my cars in the past, incompetence. This is my first MB, is there a reason I can't do this work myself? Toosl that I need specific to this car?
Thx,
NIXDSG
Even with the maintenance program , the rear diff oil change was not included .
That's for the GLC . Some got it covered !!
I don't know about other cars .
To answer your questions
- 2020+ has a electronic rear diff and the 2000mi diff oil change recommendation was eliminated. The 2018-2019 actually has that requirement on the recommended break in procedure on the windshield sticker. If you read the sticker on your 2021 you will not see that recommendation
- Regular oil changes are easy and should cost about $100 depending on the oil. Personally I use Liquimoly 5W40 ($80/10qt) Hengst E155HD122 filter ($8.95) Genuine Mercedes drain plug 000-990-95-18 ($8). The only annoyance is there is no physical dip stick so you have to check oil level through the infotainment and NOTE your hood must be closed to get a reading.
The first thing was he said the differential oil needed to be changed at 2,000 miles. I read that has changed and is no longer required, what is the true requirement for this car?
In the end I refused the service contract, $2,500 for 4 years of oil changes and such per the published schedule. Was that a mistake?
I normally do my own oil changes and other maintenance. I've rebuilt transmissions, axles, ... I have the ability to change the oil. I've had dealer screw up my cars in the past, incompetence. This is my first MB, is there a reason I can't do this work myself? Toosl that I need specific to this car?
Thx,
NIXDSG
Regarding the differential oil you should change them at 2k miles, the e-diff being refered to is just an electronic hydraulic that engage and disengage the locking differential, still need to change that oil regardless.







