34 52 516 Removing and Installing/Replacing DSC Control Unit

34 52 516 Removing and installing/replacing DSC control unit





Important!
Read and comply with notes on protection against electrostatic damage (ESD protection).





Necessary preliminary work:
^ Remove the hydraulic unit

Important!
Maintain conditions of absolute cleanliness.





Unclip brake lines (1) from bracket (2).





Unfasten brake lines (1).

Installation note:
Tightening torque 34 32 1AZ.





Important!
Risk of damage to the contacts when removing and installing the hydraulic unit.

Release screws (1) and carefully detach DSC control unit (2) towards top.





Important!
Cleaning with compressed air, chemical solvents and sharp-edged objects is not permitted.

Do not touch pressure sensor contacts (2) with your fingers or clean the contacts.

If necessary, clean sealing surface (1) with a plastic scraper or a fluff-free cloth.





Important!
Do not touch valve coils (1) and pressure sensor contact springs (2) with your fingers, do not clean or readjust these components either.

Check gasket (3) for damage. If damaged, replace DSC control unit (4).





Installation note:
Make sure screws are inserted evenly and DSC control unit rests on hydraulic unit.

Replace screws.

Observe tightening sequence (1-4).

Tightening torque 34 51 1AZ.





Replacement:
- Carry out programming/encoding

- Brake line mix-up test:
- Function check of hydraulic unit

F04 only:
- Carry out brake pedal travel sensor adjustment.