N55 Clutch replacement tutorial?

NickD · 03-26-2026, 09:14 AM

I'm getting ready to do the clutch and flywheel on my '12 135i N55. I've searched around for tutorials and I've found a lot of N54-based tutorials. I know the transmission is slightly different for the N55 so I was wondering if there were any N55 specific tutorials? Can I just use one of the N54 ones (are torque specs the same?) Can I follow one for a 335i N55? Should I just pick up a 335i N55 shop manual? Any suggestions would be greatly helpful!

moose09876 · 03-29-2026, 07:51 AM

Well, I swapped the clutch on my N55 and also swapped clutch and transmission to a GS53-BZ. I just used youtube. It's really not that hard, only tips I have is the wood block between the subframe and the front of the oil pan, every extension you own, and these: https://www.astrotools.com/product/1...ct-socket-set/. If you don't have a clutch / flywheel yet, I'm also selling a lightly used one in the classifieds section.

NickD · 03-29-2026, 09:00 AM

Thanks for the advice. I'm assuming the wood block is to prevent the engine from tipping forward too much after removal of the trans making it difficult for re-install? I have a decent set of torx sockets from previous work on the car.

moose09876 · 03-30-2026, 07:00 AM

Correct with the block. The 2 etorx on the top are TIGHT.

03-26-2026, 09:14 AM	#1
NickD Private 21 Rep 57 Posts Drives: 135i, ATS-V, Miata Join Date: Jul 2024 Location: New Jersey iTrader: (0)	N55 Clutch replacement tutorial? I'm getting ready to do the clutch and flywheel on my '12 135i N55. I've searched around for tutorials and I've found a lot of N54-based tutorials. I know the transmission is slightly different for the N55 so I was wondering if there were any N55 specific tutorials? Can I just use one of the N54 ones (are torque specs the same?) Can I follow one for a 335i N55? Should I just pick up a 335i N55 shop manual? Any suggestions would be greatly helpful!
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03-29-2026, 07:51 AM	#2
moose09876 Private First Class 262 Rep 177 Posts Drives: 13 135i mt 20 Chevy 16 R1200R Join Date: Oct 2013 Location: Indiana iTrader: (0)	Well, I swapped the clutch on my N55 and also swapped clutch and transmission to a GS53-BZ. I just used youtube. It's really not that hard, only tips I have is the wood block between the subframe and the front of the oil pan, every extension you own, and these: https://www.astrotools.com/product/1...ct-socket-set/. If you don't have a clutch / flywheel yet, I'm also selling a lightly used one in the classifieds section.
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03-29-2026, 09:00 AM	#3
NickD Private 21 Rep 57 Posts Drives: 135i, ATS-V, Miata Join Date: Jul 2024 Location: New Jersey iTrader: (0)	Thanks for the advice. I'm assuming the wood block is to prevent the engine from tipping forward too much after removal of the trans making it difficult for re-install? I have a decent set of torx sockets from previous work on the car.
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03-30-2026, 07:00 AM	#4
moose09876 Private First Class 262 Rep 177 Posts Drives: 13 135i mt 20 Chevy 16 R1200R Join Date: Oct 2013 Location: Indiana iTrader: (0)	Correct with the block. The 2 etorx on the top are TIGHT.
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