The Random E46/ZHP Question Thread

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Originally Posted by az3579

That's an odd spot to be damp...

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Yeah it is. This was after it sat in the sun for two days, so it may just be the last spot to evaporate for some reason.

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Originally Posted by Sockethead

I recently had to replace the seal on the sunroof. Tech said it happens a lot down here due to sun/heat/age but that was the back seat floor... that's the only spot? Sunroof drains?

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All other floor boards were dry and I pulled the carpet up -- no moisture underneath. I'll have to test the sunroof drains fo sho.

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Originally Posted by Karl Lazlo

Happens all the time when my dates see my collection of BMWs.

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Doggies that get really excited for car rides?

Edit: Think I found something here. I'll check this first.
https://www.youtube.com/watch?v=Af3rq-fNPV0

Can someone confirm that the ZHP automatic 3.64 rear differential (with cooling fins) fits in a manual.

Any adjustments or mods or is it a straight swap?


https://www.ebay.com/itm/BMW-E46-REA...ry!35758!US!-1

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Originally Posted by PetesZ

Can someone confirm that the ZHP automatic 3.64 rear differential (with cooling fins) fits in a manual.

Any adjustments or mods or is it a straight swap?


https://www.ebay.com/itm/BMW-E46-REA...ry!35758!US!-1

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Straight bolt up. Great find with the cooling fin cover.

You have to swap the pinion flange and the axel flanges. They are different in the automatic

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Originally Posted by Sockethead

You have to swap the pinion flange and the axel flanges. They are different in the automatic

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??? The input flange is different on the 325, and the output flanges are different on the regular 330, but the pics of the 3.64 zhp diff he linked are showing the correct 6 bolt input flange and zhp output flanges

I read "automatic" and that's what you have to do.... didn't look at the pic because I was reading on my phone.... looking at the pick, pinion flange looks correct (6bolt) but the axle flanges look like the automatic flanges... easy enough to swap though...the pinion is the PITA to swap...

Yeah - Went ahead and got it-

That was my main concern - the Input flange - but the picture on the item did show the correct flange.

The axle flanges are a swift hit from the rubber mallet.....
The cooling fins through me a bit - but bonus

Looking forward to the acceleration with the 3.64. Cheers

Yea that diff cover is from the Z4

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Originally Posted by Sockethead

Yea that diff cover is from the Z4

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And totally unnecessary on an open diff. You might get lucky and find an aftermarket lsd in there.

Definitely a bonus - just the diff cover is $150.

Looks like some Automatic ZHP had them - not sure why but for a track car will help more than hurt.