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Hydraulic Modulator with ABS-Control Unit, Remove
and Install/Replace
Important: It is
essential to comply with the instructions for the hydraulic
modulator and the ABS-control unit 
 Remove
| 1. |
Detach cover of brake fluid reservoir
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| 2. |
Siphon out as much brake fluid as possible with siphon
bottle
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| 3. |
Remove battery
| • |
Detach earth connection from earth terminal
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| • |
Detach positive connection from battery
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| • |
If present: detach thermal protection
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| 4. |
Remove battery support
| • |
For diesel engines: Detach preheater system control unit
(4)
|
| • |
Detach wiring harness plug (3)
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| • |
Detach wiring harness
| – |
Disconnect 2x cable ties (1)
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| 5. |
Detach coolant compensation tank
Note: Cooling system
remains sealed
| • |
Disconnect wiring harness plug
| – |
Set coolant compensation tank aside
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| 6. |
Remove hydraulic modulator
| • |
Disconnect hydraulic modulator wiring harness plug
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| • |
Detach 6x hydraulic line (2)
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| • |
Screw in 6x sealing plugs on hydraulic modulator
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Install
| 7. |
Install hydraulic modulator
| • |
Unscrew 6x sealing plugs from hydraulic modulator
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| • |
Attach 6x hydraulic line
| – |
Tighten 6x retaining bolt 14 Nm
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| • |
Connect hydraulic modulator wiring harness plug
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| 8. |
Attach coolant compensation tank to mounting
| • |
Connect wiring harness plug for coolant level sensor
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| 9. |
Install battery support
| • |
For diesel engines: Attach preheater system control unit
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| • |
Attach wiring harness plug
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| 10. |
Install battery
| • |
Install battery bracket 15 Nm
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| • |
If present: install thermal protection
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| • |
Attach positive connection to positive terminal
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| • |
Attach earth connection to earth terminal
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| 12. |
Top up brake fluid reservoir to "MAX" marking
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| 13. |
Screw cover on to brake fluid reservoir
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| 14. |
When replacing the hydraulic modulator with ABS control unit,
perform programming with TECH2 after installation
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| 15. |
Program volatile memory
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