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    2005 A4 Quattro 2.0T Brakes Soft at cold start

    http://i.ebayimg.com/00/s/NTA0WDM5NA==/$(KGrHqR,!iYF!9,nzK7,BQfHd6pMLg~~60_12.GIF?set_id=880000500F I think that is the pump - any more thoughts Rob ? Thank you
  2. P

    2005 A4 Quattro 2.0T Brakes Soft at cold start

    No it is just vibrating at the hose. I can not see or feel it popping in and out at all.
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    2005 A4 Quattro 2.0T Brakes Soft at cold start

    I started the car cold. The black hose coming out of the vacuum pump does vibrate with the engine running. I pumped the brake pedal, seemed to make no difference in the brakes when I backup or go forward - hard pedal, car barely stops at low speed even tho I pushed hard on the pedal.
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    2005 A4 Quattro 2.0T Brakes Soft at cold start

    I will try the test after work tonight. On the coldstart previously, the pedal is not soft - it just goes down a bit, is hard, and there is very little braking force - hardly makes the car stop when backing up a little slowly or going forward slowly. I will post the results of doing coldstart...
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    2005 A4 Quattro 2.0T Brakes Soft at cold start

    I have a 2005 Audi A4 Sedan Quattro 2.0T automatic VIN WAUDF68E65A43xxxx. When I first start the car, and back up or go forward, the brake pedal is soft and I have hardly any brakes. If I drive the car for 1-2 minutes, the brakes are fine. I suspected a vacuum leak and have looked in the hoses...
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