Ok this is a long shot but if you can get to central lock unit in the boot, detach vacuum hose from it and feel if it is sucking while unlocking car when you here motor running. If it does not suck then pump have failed-quite common in Audi's and you should be able to unlock sucking by mouth on the vacuum hose, if it does suck then you have vacuum leak and I have not come up with idea to sort that out just yet unless you have access to very powerfull vacuum pump or even good household vacuum which you could try to attach to vacuum hose.
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7th August 2011, 01:55 PM
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