Recently my 2001 S3 occasionally doesnt feel like its boosting properly... maybe 1 day a week?.
Aswell as occasionally the brakes not performing 100%
Which would say to my split vac pipe... Ive had a quick look and they all look sound.. Vagcom shows no codes.
But everytime i go to log boost (115) it performs ok.
Any common pipes i should have a closer look at?.