Audi A6 3.2 FSI 2004 - Water ingress kills MMI

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Sat 12 Nov 2011 17:21
Audi A6 3.2 FSI 2004 - Water ingress kills MMI - jiner

Hi All, Just searched for this problem and now joined the forum for some advice. My car has just been into dealer to have new disks and pads fitted. After leaving dealer and driving home the radio switched itself off and didn't come back on. Then i noticed the mmi system was off and would not come back on. Back it went to dealer. After diagnosis they said it was a control unit that needed replaced (£335) but after replacing the unit it still didn't work. Get a phone call today from Audi saying there is 4 inches of water in car and this has killed two control units. To replace the telephone unit £1294 to replace the other unit £950 to remove and replace carpets £576..... The water may have came in through the pollen filter which they changed at the last service...... Any thoughts?

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Sat 12 Nov 2011 18:13
Audi A6 3.2 FSI 2004 - Water ingress kills MMI - dieselnut

This is a common problem & VW/ Audi/ Skoda have known about it for too many years,

Here is a link to the briskoda forum with a ' how to' guide.

http://briskoda.net/forums/blog/18/entry-62-superb-mki-water-ingress-cure/

Also check the plenum chamber, the scuttle area where the battery sits. Look carefully at the area below the battery & check its not full of water, there are drain holes under the battery & brake servo that get blocked. The backed up water eventually finds its way into the car interior.

Edited by dieselnut on 12/11/2011 at 18:16

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