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– Detach tension spring -1- and return spring -2-.
– Remove hold-down pins -3 + 4- along with compression
springs and remove brake shoes.
2.4.2
Installing
Install in reverse order.
Additional work:
Grease brake shoe web and parking brake motor mounting
-arrows-:
– Apply hot bolt paste G 052 112 A3 to sliding and side surfaces
of brake shoe web -1- and parking brake motor mounting -2-.
WARNING
Ensure that no grease gets on friction surfaces of brakes shoes
and brake drum!
– Then perform basic setting of electromechanical parking
brake.
Connecting -VAS 5051- and selecting functions
2.5
Adjusting air gap
– Remove rear wheels.
The brake discs must rotate freely, if necessary press brake lining
back slightly.
Connecting -VAS 5051- and selecting functions
– Select electromechanical parking brake and function „adjust‐
ing air gap“.
Air gap OK., example display on -VAS 5051- :
Evaluation
Air gap lies within tolerance.
Left air gap: 2.19 mm
Right air gap: 2.17 mm
Difference left/right air gaps: 0.02 mm
Air gap not OK., example display on -VAS 5051- :
Evaluation
Specification
1
/ Actual value
2 or
3)
Air gap lies outside tolerance.
Left air gap Spec./Act.
1.9 - 2.4 mm / 1.61 mm
Right air gap Spec./Act.
1.9 - 2.4 mm / 2.54 mm
Touareg 2010 ➤
Brake systems - Edition 05.2011
2. Repairing rear brakes
49
