Removing and installing engine control unit (Golf): VW 1.9 TDI (BJB, BKC, BLS, BRU, …)

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009)

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• Before the engine control unit is removed, the control unit identification must be read and, thus, the coding of the current control unit as well .

🔧 Engine codes this applies to

📋 Procedure

1. Before the engine control unit is removed, the control unit identification must be read and, thus, the coding of the current control unit as well .
2. Switch off ignition.
3. Remove wiper arms, plenum chamber cover and plenum bulkhead Electrical system92Windscreen wiper system; Removing and installing windscreen wiper system.
4. Bend catch open slightly (1).
5. Then push engine control unit out of retainer (arrow).

6. Release now connector from engine control unit, disconnect connector.
7. Fit connector to engine control unit and lock connector in position.
8. Push engine control unit onto bracket.
9. Press catch (1) against engine control unit.
10. Install plenum chamber bulkhead, plenum chamber cover and wiper arms Electrical system92Windscreen wiper system; Removing and installing windscreen wiper system.

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