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Kind of maddeningly, this morning it showed no symptoms at all, behaving perfectly without any special treatment. Not sure how that happens -- either it's broken or it's not, right? :dunno: |
There might be some uneven clutch material deposits on either the pressure plate or the flywheel which could cause the juddering, which could cause the two flywheel masses to get out of sync. Just a guess. Clutches also grip better when they're warmed up, so if it was cold this morning, it might hide the problem.
If there's a single-mass solution for your car I'd probably choose to replace the clutch / FW with that, assuming you take the car in to get the clutch done. There is nothing magic about BMW clutches that requires any specialized labor. Any good indie shop should be able to handle it. It'll be expensive, though. |
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Single mass is also an interesting thought, though with this car I'm especially hesitant to do anything not to OEM spec. I'm going to sell it at some point (not soon), and I have a feeling potential buyers for a high mileage 1M are going to be extra anal-retentive about absolutely everything. Even moreso if it goes up on BaT. (Have they even had a 1M yet?) Good to know there's no special BMW clutch juice required. Thanks. |
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I can't comment on what could be the issue but in regards to using a dealership for replacement versus a shop I wanted to give you an issue I went through.
When I had that NSX a few years ago I had a shudder on the clutch at take off first gear as well and had the dealership replace the clutch which I paid for. The replacement clutch was if I recall a little better but had a shudder at take off as well ... the best part of having an Acura dealer do the work is there was a warranty and they ended up replacing the clutch again without any argument or questions. They also did multiple adjustments to it when I wasn't satisfied with the feel. Another benefit is they supplied a loaner car each time I took it in. I don't know if a regular shop would have done this or not but I do know the dealerships never minds doing warranty work if there is an issue with their work being they get paid by the manufacturer. |
Sure, but I'm well out of warranty. And my guy does have loaners. (A couple of E46 325s)
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Edit: and Plaz already has a relationship with his shop in Sterling |
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