Audi A4 B6 2005 - Brake servo fault

[Peter62]

Hi,

I have a 2005 A4 avant that has been laid up for a few years.

I have a problem with the Brakes. The power doesn't seem to be working, and you have to apply a lot of manual pressure to make them work.

Would this be the servo or the pump?

I get a warnig signal of a car skidding..in yellow?

 

Any pointers most welcome

 

Peter

 

[Steve Q]

I'd recommend a diagnostic check to see if any fault codes flag up. 

What condition is the battery? As low electrical power can cause various issues. 

Could still be the servo.