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– Pull vacuum line off separating point -arrow- by pressing re‐
lease buttons.
– Pull vacuum line -1- out of brake servo unit.
– Cover engine compartment in area of engine control unit -
J623- , to prevent scratching of paintwork.
– Remove bolts -1- and remove engine control unit -J623- up‐
wards.
– Release and pull connector off vacuum sender -G608- .
– Guide vacuum line with vacuum sender -G608- out to right
Remove vacuum sender -G608- from vacuum line
– Release clip with a pair of pliers -1-.
– Carefully lever vacuum sender -G608- -2- downwards.
Installing
Install in reverse order. Note the following points:
– Make sure seals are correctly seated.
Specified torque
Components
Specified torque
Coolant expansion tank to body
9 Nm
Engine control unit -J623- to body
9 Nm
6.4
Checking brake servo vacuum system
The following instructions are intended to help you find the causes
of problems effectively and objectively in the event of complaints
about the brake servo or in the event of a so-called »hard brake
pedal«.
This check relates to the following components:
♦ Brake servo
♦ Oil seal between brake master cylinder and brake servo.
♦ Non-return valve
♦ Vacuum hoses with connectors
Touareg 2010 ➤
Brake systems - Edition 05.2011
86
Rep. gr.47 - Brakes - hydraulics
