Transitional fluid

The main dealer wants to change the auto box oil in my 2006 MB C320CDI at 37,500 miles at a cost of almost £300. Is this necessary?

Asked on 22 May 2010 by M.M., via e-mail

Answered by Honest John

I don't think he would recommend this unless there was a good reason. It's a complicated process as the fluid needs to be at exactly the right temperature and has to be pumped out and replaced by a sort of dialysis machine.

Tags: oil technical issues owning

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