Differential fluid change

[White340]

Hi,

I don't see on my break in service invoice any mention of them changing my differential fluid. I have 21k on the car right now and am scheduled for service for the 3y service in a couple weeks. I know it should have been changed (and maybe it was), but I want to bring it up to them at the service.

In any case what happens if they didn't change it? What am I risking here and what recourse do I have?

Edit: saw the differential fluid part number on my invoice, though it didn't have the description of the job. Looks like it was done!

[jmciver]

Originally Posted by White340

Hi,

I don't see on my break in service invoice any mention of them changing my differential fluid. I have 21k on the car right now and am scheduled for service for the 3y service in a couple weeks. I know it should have been changed (and maybe it was), but I want to bring it up to them at the service.

In any case what happens if they didn't change it? What am I risking here and what recourse do I have?

You have no recourse for the diff fluid as BMW removed this as part of the break-in service beginning with MY16 M-cars (might have been even earlier years). Changing the diff fluid was not part of the break in service on my ‘17 M3, but I paid out of pocket to have it done.

I wouldn’t worry about any damage, but I would change it out no later than 30k miles as a good (but not mandatory) preventative maintenance practice.

[White340]

Originally Posted by jmciver

You have no recourse for the diff fluid as BMW removed this as part of the break-in service beginning with MY16 M-cars (might have been even earlier years). Changing the diff fluid was not part of the break in service on my '17 M3, but I paid out of pocket to have it done.

I wouldn't worry about any damage, but I would change it out no later than 30k miles as a good (but not mandatory) preventative maintenance practice.

Great thanks!