Diff drain plug size

[blackcountrybimmerman]

Hi guys,

What size is the diff drain plug? 12mm or 14mm?

Going to change the diff oil tomorrow morning, but I've got to get the tool and want to get off to a flier.....

Any advice greatly appreciated.

TIA,

Alan

[bodieanddoyle]

what size diff? small case ones are 10mm allen key, big ones are 14mm. useless info-hazet even did a special 10/14 tool for them.
don't forget new crush washers for the diff plugs.

[blackcountrybimmerman]

It's the big case one, beause my 10mm Allen Key was too small......

Thanks for that....

[leeparkes]

Alan,dont forget to try and undo the filler plug first before you drain all the oil out.

[blackcountrybimmerman]

Top of my list mate.....

Tried with mole grips , but wasn't having it.

[blackcountrybimmerman]

Thanks for the advice, done in 20 minutes once I'd got all the bits.

Went and got a trade card from Halfords this morning, and thought ok, I might get a bit of a discount.

I ended up paying £0.79 for a drain plug socket......bargain. But that was because it was the manager who was serving me and the socket wouldn't scan.

So he charged me for a pen.....lol

[E30Gheko]

Bargain mate! I went to halfrauds a few years back looking for an air filter for a very old 320i I had. They had a few left end of the line sort of stuff and I got one for 2p! Yes 2p! - I bought 2 actually, well why not at that price eh?