Assembly overview - brake servo/brake master cylinder to Week 22/2008, LHD — VW
Assembly overview - brake servo/brake master cylinder to Week 22/2008, LHD 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 to Week 22/2008, LHD
Note
Use only new brake fluid. Observe information on brake fluid reservoir!
Pedal cluster
Nut
25 Nm
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
.
Chapter
A vacuum sender is fitted in vehicles with HBV
Chapter
.
Diesel engines are fitted with an 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.
Replace completely in the event of a fault (before doing so, check brake servo vacuum system)
Chapter
Removing and installing
Chapter
Sealing ring
Brake servo vacuum sender
G483
Only on vehicles having HBV
Removing and installing
Chapter
Brake master cylinder without
brake light switch
F
Allocation
Electronic Parts Catalogue
.
Cannot be repaired. If faulty, renew as a complete unit.
Removing and installing
Chapter
Brake master cylinder with
brake light switch
F
Allocation
Electronic Parts Catalogue
.
Cannot be repaired. If faulty, renew as a complete unit.
Removing and installing
Chapter
Brake light switch
F
Including
brake pedal switch
F47
.
In vehicles prior to Week 45/2005, the
brake light switch
F
is located on the brake pedal
Chapter
.
Removing and installing
Chapter
Bolt
5 Nm
Heat shield
Nut
25 Nm
Always renew after removing
Brake line
14 Nm
Brake master cylinder/secondary piston circuit to
ABS hydraulic unit
N55
.
Brake line
14 Nm
From primary piston circuit of brake master cylinder to
ABS hydraulic unit
N55
.
Sealing plug
Moisten with brake fluid and press into brake fluid reservoir.
Brake fluid reservoir
Cap with
brake fluid level warning contact
F34
Sealing plug
Connection for vacuum hose.
Vacuum hose
Fit in brake servo.
Brake servo pressure sensor
G294
In vehicles with an FSI engine without HBV (hydraulic brake with vacuum servo)
Removing and installing
Chapter
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.