Engine management system AHD 2.5 TDI from February 1999 (V).
Diesel fuel injection control unit, cruise control system (GRA) switch, air flow meter

| E45 | speed control system switch* |
| E227 | switch without fixed position for speed control system |
| G70 | air flow meter |
| J248 | diesel fuel injection control unit, near the battery |
| T5 | wiring connector. 5-pin |
| T6a | wiring connector. 6-pin |
| T68 | wiring connector, 68-pin |
| * | only on vehicles with cruise control |

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