Engine control unit, Control unit for the reducing agent dosing system, Heating element of the reducing agent tank (heating circuit 1), Heating element of the reducing agent pipeline (heating circuit 2)
- J623 - Engine control unit
- J880 - Control unit for reducing agent dosing system
- T2al - Connector, 2-pin, brown
- T2am - Connector, 2-pin, orange
- T2e - Connector, 2-pin, black
- T2j- Connector, 2-pin, black
- T8am - Connector, 8-pin, black
- T14k - Connector, 14-pin, brown
- T17t - Connector, 17-pin, brown
- T30c - Connector, 30-pin
- T94 - Connector, 94-pin
- Z102 - Heating element of the recovery tank (heating circuit 1)
- Z104 - Heating element of the reducing agent pipeline (heating circuit 2)
- 367 - Ground connection 2 in main wiring harness
- 688 - Ground connection point 2 on the central tunnel
- H5 - Connection 3 in the wiring harness of the reducing agent tank
- * - only for vehicles with SCR system
| ws | white | sw | black |
| ro | red | rt | red |
| br | brown | gn | green |
| bl | blue | gr | grey |
| li | purple | vi | purple |
| ge | yellow | or | orange |
| rs | pink |