Starter motor replacement on N52 engine

Scooba_Steve · Post by **Scooba_Steve** » Sun Oct 08, 2017 2:57 pm

Tomsdad wrote: ↑Sat Oct 07, 2017 6:15 pmInteresting.
Thanks for that. I wonder why they are use once only?

ALL Aluminium bolts must be replace every time they are released (TIS). Because they are stretch bolts tightened to torque and angle.

rooha wrote: ↑Sat Oct 07, 2017 6:27 pmApproximately no-one. Plus or minus one.

I'll be that 'one' then

I'm sure there will be a few more.

As I see it, the main benefit of DIY work on the car (for me) is knowing the job has been done properly. Cost savings are a happy consequence!

Tomsdad · Post by **Tomsdad** » Sun Oct 08, 2017 5:18 pm

I will replace the bolts.
Wonder why they don't use steel bolts? Just curious about these things.
BTW
Bmw wanted £450 for an exchange starter motor. I am having mine reconditioned locally for £50

Smartbear · Post by **Smartbear** » Sun Oct 08, 2017 5:42 pm

Tomsdad wrote: ↑Sun Oct 08, 2017 5:18 pm I will replace the bolts.
Wonder why they don't use steel bolts? Just curious about these things.
BTW
Bmw wanted £450 for an exchange starter motor. I am having mine reconditioned locally for £50

It’s so a bimetallic reaction doesn’t occur between the bolts & the magnesium engine case

Rob

Tomsdad · Post by **Tomsdad** » Sat Oct 14, 2017 12:12 pm

All back together and working. Took me 70 minutes to put back together. Still can't believe total replacement can be done in 45 minutes!
However having had the battery disconnected, the Windows won't comfort close and won't one touch close either.
Happy days

Scooba_Steve · Post by **Scooba_Steve** » Sat Oct 14, 2017 5:34 pm

Just reset the windows, many threads on how to do it.

Tomsdad · Post by **Tomsdad** » Sat Oct 14, 2017 5:54 pm

All done
Thanks

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