Question about 2001 BMW Z3

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I have a Z3 convertable. It has a steptronic transmission. Recently when I try to put in into the S or M mode, it will not show on the display and does not seem to convert to the other gears. It feels like it has shifted to M, but does not show and occasionally it feels as though the transmission is slipping.

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Hi this could either be the clutch not engaging or the torque converter not converting the rpms to power.

Firstly check the fluid levels on the gearbox, the light on the dash should work regardless unless the torque converter is not working correctly.

Lastly check the slave cylinder look for any damp areas around the top of the gearbox, they sometimes leak but not enough to drip to the floor. If the slave is not working then most likely would cause this fault.

Torque converters are quite expensive around £500-£900 although some are cheaper thats just a round about figure.

After the fluid is corrected they also need to be bled through to get any air out of the system, again this could cause the issue you have.

Hope this helps
Regards

Dan

Posted on Feb 01, 2010

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