34 52 516 Removing and installing/replacing the DSC control unit

Attention! 

Read and comply with NOTES ON PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary work: 

• Remove the HYDRAULIC UNIT .

Removal: 

Release screws (1) and remove holder (2).

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Attention! 

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

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

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Preparation for installation:

Attention! 

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.

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Attention! 

Do not touch, clean or readjust valve coils (1) and pressure sensor contact springs with your fingers.

Check gasket (2) for damage. If damaged, replace DSC control unit (3).

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Installation: 

Installation note: 

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

Replace screws.

Observe tightening sequence (1-3).

Tightening torque, refer to: 34 51 1AZ .

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Attach holder (2).

Insert screws (1) and tighten.

Tightening torque, refer to: 34 51 2AZ .

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Required follow-up work: 

• Install the HYDRAULIC UNIT .

Replacement: 

Carry out PROGRAMMING/ENCODING