Rear differential oil change in routine Service A

[mercyshah]

Hi,

I booked my 2014 GLA 220cdi 4matic into the main dealer for Service A + gearbox service. I also requested, additionally, the rear differential oil change.

Spoke to two different people at the main dealer (Mercedes Chelmsford who are Jardine Motors), both said that the rear differential oil change is a normal part of the service and will always be done at every service A or B.

However, I looked carefully at the work listed as included in each service type, I don't see the rear differential oil change there.

Just wondering is this a new routine item that is not officially listed? ... or perhaps the booking people are misunderstanding and I need to speak to the mechanic?

 

[GrimQ30]

If I remember correctly, it's part of routine service after you hit 60k mile mark. Only inspection until 5y/60k. But most dealers don't bother doing anything unless you reached the mileage.

 

[SidewazeSamm]

This may be a late response to this thread, but...
Get the diff oil changed every service. Officially it doesn't need it and isn't on the schedules, but there's a lot of GLA 4matic owners experiencing problems with rear diff knocking. Apparently it typically starts around 55k miles.
MB are doing their best to deflect the warranty claims (told me firstly it was my tyres, and then it was my fuel tank!) whilst denying knowledge of an issue (of course). Finally they fitted a new diff.
Local independent MB specialist is aware of the issue however...

 

[mercyshah]

Thank you for the response @SidewazeSamm.

I did get the full auto transmission plus the rear diff oil changed and it has resolved the issue. Has been fine for the last 6-7k miles. But I'll heed your words and ensure it is changed at every service.

 

[MrGreedy]

Different car, but no interval/schedule on the w212 rear diff either. Silly to omit from the schedule for such a cheap, easy job. Even if there is low evidence of any contribution to preventing failures, just push the interval out to 70-100k miles.

I think you are doing the right thing changing the oil.