Assembly overview - brake servo/brake master cylinder (right-hand drive vehicle) — VW
Assembly overview - brake servo/brake master cylinder (right-hand drive vehicle) on VW: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
Assembly overview - brake servo/brake master cylinder (right-hand drive vehicle)
Note
Use only new brake fluid. Observe information on brake fluid reservoir!
Pedal cluster
Bolt
25 Nm
Hexagon nut
25 Nm
Self-locking
Always renew after removing.
Seal
For brake servo.
Brake servo
On petrol engines, the required vacuum is taken from the intake manifold.
Certain vehicles with a petrol engine and an automatic gearbox are equipped with a
brake vacuum pump
V192
.
A vacuum sender is fitted in vehicles with HBV
Chapter
.
Diesel engines are fitted with a vacuum pump to create the required vacuum
Chapter
.
Functional check:
With engine switched off, depress brake pedal firmly several times. (This will release the vacuum in the unit.)
Now step on and hold brake pedal with medium pressure and start engine. If the brake servo is functioning properly, the brake pedal will be felt to go down as the servo takes effect.
If faulty renew completely (check all vacuum lines first).
Removing and installing
Chapter
.
Sealing ring
Brake servo pressure sensor
G294
In vehicles with an FSI engine without HBV (hydraulic brake with vacuum servo)
Removing and installing
Chapter
.
Sealing plug
Connection for vacuum hose.
Vacuum hose
Fit in brake servo.
Brake servo vacuum sender
G483
Only on vehicles having HBV
Removing and installing
Chapter
.
Brake master cylinder
With
brake light switch
F
from week 50/2005
In vehicles prior to Week 50/2005, the
brake light switch
F
is located on the brake pedal
Chapter
.
Allocation
Electronic Parts Catalogue
.
Cannot be repaired. If faulty, renew as a complete unit.
Removing and installing
Chapter
.
Heat shield
Nut
50 Nm
Bolt
25 Nm
Brake line
14 Nm
From secondary piston circuit of brake master cylinder to hydraulic unit.
Bolt
5 Nm
Brake light switch
F
Including
brake pedal switch
F47
.
In vehicles prior to Week 50/2005, the
brake light switch
F
is located on the brake pedal
Chapter
.
Removing and installing
Chapter
.
Sealing plug
Moisten with brake fluid and press into brake fluid reservoir.
Brake line
14 Nm
From primary piston circuit of brake master cylinder to hydraulic unit.
Brake fluid reservoir
Cap
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.