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Table of Contents > Descriptions of work > Brake fluid level: Check

VW Passat B8 Service Manual ➜ Brake fluid level: Check

Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
– Tighten wheel securing bolts in diagonal sequence to speci‐  
fied torque ⇒ page 143 .  
– Place adapter in vehicle tool kit after completing work.  
– Fit wheel bolt covers if necessary .  
4.10.3  
Brake discs: checking condition  
– Check all brake discs for the following damage patterns:  
♦ Cracks  
♦ Scoring  
♦ Rust (no surface rust)  
♦ Burrs on circumference of brake disc  
Note  
Inform customer if brake disc damage is similar to these dam‐  
age patterns. Renewing the brake discs is a repair measure.  
4.11  
Brake fluid level: Check  
NOTICE  
♦ Never allow brake fluid to come into contact with fluids  
that contain mineral oils (e.g. oil, petrol, cleaning agents).  
Mineral oils will damage seals and rubber grommets of  
brake system.  
♦ Brake fluid is poisonous. In addition, due to its corrosive ef‐  
fect, brake fluid must not come into contact with paintwork.  
♦ 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.  
♦ Observe relevant disposal regulations.  
When replenishing, ensure to not spill any liquids in the en‐  
gine compartment.  
Spilled liquids may cause damage in the motor compartment.  
Toothed belts, V-belts and poly V-belts which came into con‐  
tact with oil, brake fluid or coolant must always be renewed.  
Brake fluid level at delivery inspection  
– At delivery inspection, the fluid level must be at MAX. mark‐  
ing -1-.  
78  
4. Descriptions of work  
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤  
Maintenance - Edition 11.2020  
Note  
To prevent brake fluid from flowing out of the reservoir, the max.  
marking -1- must not be exceeded.  
Brake fluid level at inspection service  
Note  
The fluid level must always be judged in conjunction with  
lining/pad wear.  
When vehicle is in use, fluid level tends to drop slightly due  
to lining/pad wear and automatic adjustment.  
Recommended brake fluid level “before” brake pads are at wear  
limit  
At MIN marking or just above -2-  
“replenishing is NOT required”.  
Recommended brake fluid level, brake pads new or well within  
wear limit:  
Between MIN and MAX markings  
NOTICE  
If the fluid level is below min. marking -2-, the brake system  
must be checked for leaks before fluid is topped up, “Repair  
measure”.  
4.12  
Dual clutch gearbox 0D9: changing  
gear oil and filter  
Sequence of operations  
⇒ 6-speed dual clutch gearbox 0D9; Rep. gr. 34; Gear oil;  
Draining and filling gear oil  
⇒ 6-speed dual clutch gearbox 0D9; Rep. gr. 34; Gear oil cir‐  
cuit; Removing and installing gear oil filter  
4.13  
Dual clutch gearbox 0DD: changing  
gear oil  
⇒ 6-speed dual clutch gearbox 0DD (hybrid); Rep. gr. 34; Gear  
oil; Draining and filling gear oil  
4. Descriptions of work  
79  

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