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Relay Frame – Engine Compartment Light
Module, Remove and Install
 Remove
| 2. |
Detach cover of relay box
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| 3. |
Remove relay frame, engine compartment fan module (1) 
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| 4. |
Remove relay frame, engine compartment main fuse carrier (2)
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| 5. |
Unclip relay frame for engine compartment light module (3),
(arrows)
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| 6. |
Release necessary wiring harnesses, disconnect necessary wiring
harness plugs and unscrew necessary earth connections
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Important: Note the installation
positions of the relays and fuses.
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| 7. |
Remove relays and fuses.
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| 8. |
Remove cable ties (tape loops) (1)
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| 9. |
Compress head of housing retainer (2) and remove
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| 10. |
Release secondary retainer
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| 11. |
Release housing on both sides (1)
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| 12. |
Lever up housing (2) and slide in direction (3)
Note: For a clearer
illustration, the cables are not shown.
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| 13. |
Compress head of housing release (5) and secure the upper part
by inserting the housing retainer into the preliminary position
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| 14. |
The individual cables must be replaced in the new housing one
by one if possible. If this is not possible, the cables must be
marked correspondingly
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| 15. |
The secondary retainer must be released on the new housing.
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| 16. |
The released housing must be secured with the housing
retainer
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| 17. |
Before inserting into the new housing, the spring contacts must
be checked. If necessary, the locking mechanism (1) must be
corrected carefully
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| 18. |
Unlocking tool required:
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| 19. |
Release locking mechanisms of the RT 6.3-contacts with Special
Tool MKM-923-4 and pull out the
contacts
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| 20. |
The locking mechanisms (1) for these contacts are in the
housing
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| 21. |
Release locking mechanism of the MP 2.8-contacts with Special
Tool MKM-923-4 and pull out the
contacts
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| 22. |
The locking mechanisms are on the contacts
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| 23. |
Insert the contacts that have not yet been inserted into the
previously noted chambers of the new housing
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| 24. |
Compress head of housing retainer (1) and remove
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| 25. |
Release secondary retainers (2) and push the upper part into
the limit position, upper and lower part are now flush
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| 26. |
Secure upper part by inserting the housing retainers (3)
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| 27. |
Check correct seating of all the contacts
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| 28. |
Secure cables at 2 points (4) with tape loops
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Install
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| 29. |
Insert relays, fuses and cover flap (arrows)
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| 30. |
Fasten released wiring harnesses
| • |
connect disconnected wiring harness plugs
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| • |
connect released earth connections
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| 31. |
Install relay carrier, engine compartment fan module
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| 32. |
Install relay frame, engine compartment main fuse carrier
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| 33. |
Insert relay frame for engine compartment light module
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| 36. |
Program volatile memories
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| 37. |
Electrical function check
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