I have a 1991 318is and had the clutch disc, pressure plate and throwout bearing replaced by the stealership a little less than a year ago. Within the last two or three weeks, I had the fluids in my tranny and diff replaced and also had the upper oil pan gasket replaced due to a slow leak. All of the fluid and gasket replacements were done by a good independent bmw mechanic. I have now noticed when I shift from 2nd to 3rd or 3rd to 4th, the clutch is slipping and the car doesn't pull nearly as hard as it used to. I asked the independent mechanic what he though was going on, I suspect that there there is oil leaked onto the clutch, but he thinks that some component of the clutch isn't working correctly. He said that for such a new clutch, the pedal should be very easy to push in, but mine takes some effort. He's recommending to take it back to the dealer to have them look at it, but I supplied all the parts to the dealer to save money, so I think getting them to do any sort of warrantied repair would be impossible. Could it be from the oil pan gasket job? Rear main seal on the engine or tranny input shaft seal? Or a faulty clutch component? The clutch hydraulics seem to work fine. I am trying to avoid another costly job on this car, any input would be apprecaited, sorry for the long post...
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If oil was getting onto your clutch disk, the friction and heat would cause the oil to get sticky and you would get clutch chatter. This doesn't appear to be your case.
Check out your clutch linkage. Is the slave not releasing the fork / throw out bearing? Broken/bad diaphram spring?
Once your clutch disk becomes glazed... it's toasted. It'll just slip more & more and you will have to put in a new one.Comment
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Thanks for the info. It ended up being the master cylinder. It was basically almost completely frozen, which would explain the hard feel of the pedal. It was replaced and now there is a world of difference, I just hope this problem didn't mess up the clutch disk very much...Comment
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