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| Diagnostic cable, 5 m -VAS 5051B/1- or diagnostic cable, 3 m -VAS 5051B/2- |
| Before carrying out repairs on the Haldex coupling, determine the cause of the fault as accurately as possible by using the „Guided fault finding“, the „Vehicle self-diagnosis“ or the „Measurement module“ of the vehicle diagnostic, testing and information system -VAS 505X-. |
| Check the operation of the Haldex clutch II closed |
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| Oil level of Haldex coupling (2nd Generation), check and, top up where applicable, Altea XL 2009 ►, Altea XL Freetrack 2008 ►, Altea XL Freetrack 2009 ► → Chapter. |
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| Correct engine control unit and ABS control unit installed (check coding and control unit identification number). |
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| Place the vehicle on a lifting platform. |
Caution | For safely reasons, position the vehicle on the lift so the wheels are not touching the ground. |
| Carry out test with care to avoid damage. |
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| Apply handbrake or parking brake and slowly release clutch. |
| The engine should now stall. |
| The Haldex coupling is closed; function is OK. |
| The Haldex coupling is open. The cause of the fault may be as follows: |
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| Main pressure regulating valve sticking |
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| Mechanical fault in Haldex clutch. |
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| The four-wheel drive control unit -J492- in the rear final group is faulty |
| Check the operation of the Haldex clutch II open |
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| Oil level of Haldex coupling (2nd Generation), check and, top up where applicable, Altea XL 2009 ►, Altea XL Freetrack 2008 ►, Altea XL Freetrack 2009 ► → Chapter. |
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| Correct engine control unit and ABS control unit installed (check coding and control unit identification number). |
| –
| Place the vehicle on a lifting platform. |
Caution | For safely reasons, position the vehicle on the lift so the wheels are not touching the ground. |
| Carry out test with care to avoid damage. |
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| Step on the clutch pedal, place in first gear and slowly start. |
| All four wheels must turn. |
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| Apply handbrake or parking brake. |
| The rear wheels should stop and the front wheels should continue to turn. |
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| If the rear wheels do not turn: |
| the Haldex clutch is open; it is operating correctly. |
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| If the rear wheels turn: |
| The Haldex coupling is closed. The cause of the fault may be as follows: |
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| Main pressure regulating valve sticking |
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| Mechanical fault in Haldex clutch. |
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| The four-wheel drive control unit -J492- in the rear final group is faulty |
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| The hand brake indicator lamp -F9- is faulty |
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