VW ID.4 Service & Owner's Manuals
Table of Contents > Checking wheel brake cylinder for leaks

VW ID.4 Brake System ➜ Checking wheel brake cylinder for leaks

ID.4 2021 ➤  
Brake system - Edition 07.2021  
– Apply pressure to brake pedal until gauge indicates a pres‐  
sure of 50 bar.  
Important  
•
The pressure must not drop by more than 4 bar during the  
test period of 45 seconds. Renew brake master cylinder if  
drop in pressure exceeds specification.  
Tightening torques  
♦ ⇒ Rep. gr. 46; Assembly overview – front brake  
3.5  
Checking wheel brake cylinder for  
leaks  
Special tools and workshop equipment required  
♦ removal wedge -3409-  
Removing  
– Lift off dust boot -1- using removal wedge -3409- -2-.  
– If brake fluid is found in the dust boot, renew wheel brake  
cylinder.  
Ensure the dust boot is not damaged when lifting off.  
3. Hydraulic system  
83  

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