ASR V/ETS

Test And Repair Work

NOTE: The brake system is bled or the brake fluid is changed as on vehicles with ABS. Special or ETS/ESP bleeding is not required.

Using Roller Dynamometers
Brake Test Bench
^ Testing the parking brake the ignition must be OFF otherwise there will be ETS/ESP control

Function Test Bench Or Chassis Dynamometer And Speedo Testing
^ Only possible on 2-axle roller dynamometers

CAUTION:
^ Vehicle has permanent all-wheel drive.
^ 3 differential gears are used as differentials which may be damaged by the extent of the difference in speed and above all by prolonged differences in speed

Handling ETS/ESP Parts On Vehicles Following An Accident
If, due to the extent of the damage to the vehicle or the position and external appearance of the hydraulic unit after the accident, it can be seen that the hydraulic unit has received a heavy blow, it is to be replaced.
Indications of this are for example:
^ Hydraulic lines kinked
^ Connections at hydraulic unit leaking
^ Electric cables or plug connections damaged
^ Metal block of hydraulic unit shows signs of damage
^ Hydraulic unit has sprung out of the mounting and cannot just be installed again

If this does not apply, the system must nevertheless be subjected to a thorough function check. Solenoid valves and pumps must be checked using the corresponding test steps of the Hand-Held Tester and Diagnosis Manual.