Retrofit steering wheel heater wiring harness - AN46.11-P-0001-02EW

MODEL 212.0/2, 212.1## 1#, 218.3##/9## 1# 

Connection scheme 

Fig 1: Steering Wheel Heater Control Unit Connection Schematic Diagram

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Routing diagram shown on model 212 

Fig 2: Steering Wheel Heater Control Unit Routing Diagram - Shown On Model 212

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1. Cut off brown lines (BN) and brown/red lines (BN/RD) (twisted together) as shown and wrap with insulation tape.

   Only one brown line (br) and brown/red line (br/rt), twisted together, are required. The brown lines (br) and brown/red lines (br/rt) are connected to each other under the insulation by connector sleeves.

   Fig 3: Identifying Brown Lines (BN) And Brown/Red Lines (BN/RD)

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2. Install contact spring (5.1) of brown/red line (BN/RD) in contact cavity "1" of black coupling (2-pin) (4) included in package contents.
3. Install contact spring (5.2) of brown line (BN) in contact cavity "2" of black coupling (2-pin) (4) included in package contents.
4. Lock retainer (arrow A) of black coupling (2-pin) (4).
   Fig 4: Locating Black Coupling Lock Retainer

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5. Open cover (6.1) on front driver footwell cable duct (6).
6. Connect black coupling (2-pin) (4) to the electrical connection for left vehicle floor interior CAN potential distributor (X30/32).
7. Route brown line and brown/red line towards the front out of the driver footwell cable duct (6).
8. Close cover (6.1) on front driver footwell cable duct (6).
   Fig 5: Driver Footwell Cable Duct And Black Coupling

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9. Loop any excess length of the brown line (br) and brown/red line (br/rt) and fix in place with cable ties (10).
10. Wrap felt tape (9) around brown line (BN) and brown/red line (BN/RD) for a length of 250 mm starting at black coupling (4-pin) (1).
11. Wrap felt tape (9) around power supply wiring harness previously installed for a length of 250 mm starting at black coupling (2-pin) (8).
12. Route brown line (br), brown/red line (br/rt) and power supply wiring harness along vehicle wiring harness (7) to the footwell on driver side and fix in place with cable ties (11).

    The parts wrapped with felt tape (9) must not be fixed to vehicle wiring harness (7).

    Fig 6: Felt Tape, Vehicle Wiring Harness And Cable Ties

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13. Wrap felt tape (12) around the brown/black line (br/sw) and red/black line (rt/sw), as shown, over a length of 800 mm.
    Fig 7: Felt Tape, Brown/Black Line (BR/SW) And Red/Black Line (RT/SW)

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14. Route brown/black line (br/sw) and red/black line (rt/sw) of steering wheel heater wiring harness along vehicle wiring harness (7) to yellow coupling (14-pin) of the wiring harness (14).

    Routing must take place on the vehicle wiring harness (7) above the steering column tube (13). Otherwise, the brown/black line (br/sw) and the red/black line (rt/sw) can wrap around the steering column tube (13) during steering maneuvers.

    Fig 8: Vehicle Wiring Harness And Steering Column Tube

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15. Fix brown/black line (br/sw) and red/black line (rt/sw) of steering wheel heater wiring harness to vehicle wiring harness (7) with cable ties.

    Fix brown/black line (br/sw) and red/black line (rt/sw) in place in such a way that no loops are formed. Loop any excess length in the footwell on driver side.

16. Remove fuse (2.1) from the yellow 14-pin connector (2).
17. Install red/black line (rt/sw) in slot "6" of the yellow 14- pin connector (2).
18. Install brown/black line (br/sw) in slot "7" of the yellow 14-pin connector (2).
19. Install fuse (2.1) in yellow coupling (14-pin) (2).
    Fig 9: Yellow 14-Pin Connector, Wiring Harness And Steering Column Tube

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20. Fix the brown/black line (br/sw) and red/black line (rt/sw) with cable tie to wiring harness (14).

    Fix the brown/black line (br/sw) and red/black line (rt/sw) to steering column tube (13) without making contact.