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ID.4 2021 ➤
Brake system - Edition 07.2021
4
Brake test
4.1
Vehicle checks
Carry out the brake test on a single-axle roller dynamometer.
The maximum test speed must not exceed 6 km/h.
The test rigs authorised by Volkswagen fulfil these require‐
ments.
4.2
Checking electromechanical parking
brake
Activate "TÜV mode":
Important
•
No faults influencing function of roller dynamometer (e.g.
rotational speed sender fault) detected
•
Seat belt is fitted
•
Rear axle on single-axle roller dynamometer
•
No gear engaged
•
Vehicle's drive system deactivated (at least 3 seconds)
•
Front wheels must be stationary (at least 3 seconds)
•
Rear wheels must rotate for at least 3 seconds at a constant
speed between 2 km/h and 9 km/h.
When entering "TÜV mode", the yellow electric parking brake
and handbrake fault warning lamp -K214- will light up.
In "TÜV mode", the electromechanical parking brake does not
close fully when the button is first pressed.
The tension is increased gradually by actuating the electrome‐
chanical parking brake button -E538- 2 times in succession.
♦ Initial actuation: both sides of parking brake are actuated to
the point of application
♦ Second actuation: both sides of parking brake are fully ap‐
plied
End "TÜV mode":
As soon as one of the preconditions for the TÜV mode is no
longer fulfilled, the TÜV mode is immediately terminated, for
example:
Important
•
Front wheels, speed over 0 km/h
•
Rear wheels, speed under 2.5 km/h or over 9 km/h
6
Rep. gr.00 - Technical data
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