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Table of Contents > Descriptions of work > Brake and clutch system: changing brake fluid

VW Passat B7 Service Manual ➜ Brake and clutch system: changing brake fluid

Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
Part number - 3AA 010 801 C-  
Passat Estate "Alltrack"  
Half payload  
kPa/bar  
Full payload  
kPa/bar  
Tyre size  
Front  
Rear  
Front  
Rear  
1)  
340/3.4  
215/55 R16 97W  
1)  
Spare wheel  
Part number - 3AA 010 801 D-  
Passat Estate "Alltrack"  
Full payload  
kPa/bar  
Half payload  
kPa/bar  
Tyre size  
Front  
230/2.3  
Rear  
Front  
Rear  
225/50 R17 98V  
225/45 R18 95W  
230/2.3  
250/2.5  
290/2.9  
1)  
340/3.4  
215/55 R16 97W  
1)  
Spare wheel  
4.11  
Brake and clutch system: changing  
brake fluid  
Special tools and workshop equipment required  
♦ Torque wrench - VAS 6854-  
♦ Brake filling and bleeding equipment - VAS 5234-  
4. Descriptions of work:  
77  
Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
♦ Brake filling and bleeding equipment - VAS 6860-  
♦ Brake bleeding tool - VAS 6564-  
WARNING  
♦ Never allow brake fluid to come into contact with fluids that  
contain mineral oils (e.g. oil, petrol, cleaning agents). Min‐  
eral oils will damage seals and rubber grommets of brake  
system.  
♦ Brake fluid is poisonous. In addition, due to its corrosive  
nature, it must not come into contact with paint.  
♦ Brake fluid is hygroscopic, which means it absorbs mois‐  
ture from the ambient air and should therefore always be  
stored in air-tight containers.  
♦ Rinse off spilled brake fluid using plenty of water.  
♦ Do not reuse extracted (used) brake fluid!  
♦ Observe relevant disposal regulations.  
Extracting brake fluid  
– Unscrew cap -1- from brake fluid reservoir.  
78  
4. Descriptions of work:  
Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
– Using the suction hose from brake filling and bleeding unit ,  
extract as much brake fluid -2- from the brake fluid reservoir  
as possible through the strainer -1-.  
Note  
The strainer in brake fluid reservoir must remain in place.  
Ensure that no brake fluid runs through the strainer after com‐  
pleting the extraction (the brake fluid level in the reservoir must  
be even with the lower edge of the strainer).  
Connecting brake filling and bleeding equipment  
– Screw adapter -1- onto brake fluid reservoir.  
– Connect filler hose from brake filling and bleeding unit to  
adapter -1-.  
– Set correct pressure on brake filling and bleeding equipment  
⇒ Operating Manual , and switch on brake filling and bleeding  
equipment .  
Note  
The bleeder hose must be firmly seated on bleeder valve so  
that no air can enter the brake system.  
There must always be sufficient brake fluid in the brake res‐  
ervoir so that no air can enter the brake system through the  
reservoir.  
Front axle  
– Remove cap -1- from bleeder valve of front left brake caliper.  
– Push collector bottle bleeder hose -1- onto front left bleeder  
valve, open bleeder valve and let appropriate quantity of brake  
fluid run out (see table). Close bleeder valve. Torque: ⇒ Brake  
system; Rep. gr. 47 ; Front brake caliper; Assembly overview  
- front brake caliper .  
– Fit again cover cap on bleeder valve of front left brake caliper.  
Repeat procedure on right-hand side of vehicle at front.  
Rear axle  
– If necessary, remove both wheels on rear axle to reach the  
bleed screws.  
4. Descriptions of work:  
79