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Author Topic: Clutch Replacement Symptoms etc.  (Read 770 times)
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dougjp
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« on: October 03, 2009, 09:34:15 pm »

Ok, I did a stupid thing a few weeks ago in my Audi A4, and wonder what to do about it, if anything. Except getting a lobotomy, of course. 

I'm at very slow speed in 2nd, and an opening happens where I have to move fast. I slip the clutch to get the revs into the torque band and floor it. 291 ft. lbs. of torque takes over and the clutch slips constantly for at least 3 seconds, the car going nowhere. Disengage clutch, drop revs, gently engage clutch and light throttle and I'm moving again. The car then drives normally, as far as I can tell. The smell was horrible.

Since then, the car will take full throttle in any situation with no clutch slip that I can tell. That includes full throttle with the clutch engaged while in a tall gear and low speeds, supposedly the test for slippage. It may or may not be my imagination, perhaps there is a spit second delay in clutch engagement compared to before, however it seems to always grab.

Is there any maintenance I should do, or further testing, or if not, how is the best way to tell when its time to replace the clutch before the car gets stranded somewhere (ie; is clutch failure always gradual)?

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« Reply #1 on: October 04, 2009, 12:32:07 am »

Without looking at the clutch I don't think you can tell.  Especially as you seem to have done all the std tests.

When the clutch was going on my old Impreza it was very juddery from start up, and smoothed out again once warm.  What's it like pulling away in 1st when cold?  Try the 3rd gear, slow speed thing on a hill too just to test it a little more.
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« Reply #2 on: October 04, 2009, 05:26:20 am »

I did that several times on my BMW 330xi.  The car had enough traction with the AWD  that the clutch was the weak point.  So it was smelly for  100 yards... made no difference to the clutch as far as I could tell.    Now maybe the clutch would have failed at 200,000 kms instead of 250,000 kms. I don't know.
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« Reply #3 on: October 04, 2009, 06:33:59 am »

The clutch might not be bad per se....just in the situation you described it slipped.  Any number of things could have made it slip. 
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« Reply #4 on: October 04, 2009, 07:06:31 am »

Many thanks guys. I don't recall any problem pulling away when cold either, but I'll test that and also on a hill. Sounds like I may have dodged a bullet for now, and just fried off part of the clutch surface or something.

This is my first AWD car and I can now see how no tire slip can have a downside - the clutch. Especially with help from an APR chip set at stage 3! The saying "A singing tire is a happy tire" has new meaning, wheelspin can save the clutch!
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« Reply #5 on: October 04, 2009, 10:30:38 am »

Many thanks guys. I don't recall any problem pulling away when cold either, but I'll test that and also on a hill. Sounds like I may have dodged a bullet for now, and just fried off part of the clutch surface or something.

This is my first AWD car and I can now see how no tire slip can have a downside - the clutch. Especially with help from an APR chip set at stage 3! The saying "A singing tire is a happy tire" has new meaning, wheelspin can save the clutch!

Yep..generally in an AWD car with so much traction, the weakest link will be the one that fails...which is usually the clutch. Just be glad your clutch DID slip...I've know cars where the clutch didn't slip that sent all that shock to the driveline and broke an axle or driveshaft..
« Last Edit: October 04, 2009, 10:32:14 am by rrocket » Logged

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« Reply #6 on: October 04, 2009, 12:09:34 pm »

Many thanks guys. I don't recall any problem pulling away when cold either, but I'll test that and also on a hill. Sounds like I may have dodged a bullet for now, and just fried off part of the clutch surface or something.

This is my first AWD car and I can now see how no tire slip can have a downside - the clutch. Especially with help from an APR chip set at stage 3! The saying "A singing tire is a happy tire" has new meaning, wheelspin can save the clutch!

You're at stage 3?  Shocked
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