Audi A6 The mid-sized Audi A6 model offers more room to the driver and passengers over the A4 line.

Brake Problem, any help appreciated??

Old Sep 25, 2007 | 09:42 AM
  #1  
Michael Knight's Avatar
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Default Brake Problem, any help appreciated??

Good day all

I have noticed that my brake pedal is hard when I start up, but after a few minutes of idlingit is back to normal. Sometimes I hear an air leak from the egine, after I have switched of the engine. It is almost as if the system is loosing air somehow. Could someone please exlpain to me what might be wrong. I had the brake booster overhauled, but the problem still persists.

Thank you for your input

Michael
 
Old Sep 25, 2007 | 10:31 AM
  #2  
techbod's Avatar
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Default RE: Brake Problem, any help appreciated??

its normal hard when the engine is off and softens up when engine on but you say a few minuets before it goes soft? does the peddle seem like it has too much travel? if yes there is air in the system
 
Old Sep 25, 2007 | 10:51 AM
  #3  
Michael Knight's Avatar
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Default RE: Brake Problem, any help appreciated??

Hi Dave

I have to apply more pressureafteri have started the engine, this last for a few minutes (too long)and then only it seems normal. The pedal travel is fine.What could the"air leak noise" after a trip mean?

Looking fwd to your reply...

Michael
 
Old Sep 25, 2007 | 11:10 AM
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Default RE: Brake Problem, any help appreciated??

it could be the vacuum pipe from the servo but it could be inside the cabin from the peddle area then its only a seal and you can buy kits but not an easy job
 
Old Sep 25, 2007 | 11:28 AM
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Default RE: Brake Problem, any help appreciated??

im still thinking air in the system but the air sound could be from the secondary AIR system and would be normal
 
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