Removing and installing alternatorC: VW Golf V / Jetta

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009); platform code AJ5

📋 Procedure

1. ⚠ When disconnecting or reconnecting the batteryA, adhere strictly to the procedure described in the workshop manual . — Disconnect batteryA
2. Remove engine cover panel Power unit10Removing and installing engine; Removing and installing engine cover panel.
3. Move lock carrier to service position General body repairs, exterior50Lock carrier; lock carrier service position.
4. ⚠ Prior to removal, mark top side and direction of rotation of poly V-belt. When installing, ensure correct fitting position and direction of rotation. If the belt is installed in the wrong position or against direction of rotation, the belt will be destroyed! — Remove poly V-belt Power unit13Dismantling and assembling engine; Removing and installing poly V-belt.
5. Remove air conditioner compressor Air conditioning system87Bracket for ancillary units for air conditioner compressor. [Note: The hoses of the air conditioner compressor can remain connected.Suspend the air conditioner compressor (3) using a piece of wire (1) at a suitable position under the vehicle until it is ready to be reinstalled.Ensure that the hoses (2) are not stretched or kinked.]

6. Release and unplug connector (DF cable) (1) on alternatorC.
7. Lever off deflector cap (2).
8. Undo nut (1) and detach the B+ wire under it from the connecting thread of the alternatorC.
9. Undo nut (3) are remove wire holder (2) from alternatorC.
10. Undo bolts (1) and nuts (2) of the fuel filter (3) and place fuel filter (3) to one side. The fuel hoses can then remain connected.
11. Undo bolts (arrows) holding alternator C in place.
12. Remove alternatorC.
13. ⚠ When fitting used poly V-belts observe the direction of rotation marked on removal!Before installing poly V-belt, ensure that all ancillaries (alternatorC/air conditioner compressor/vane pump) are securely mounted.When fitting poly V-belt, make sure it is properly seated on the pulleys. — Drive threaded sleeves (A) roughly 4 mm in direction of (arrow) out of alternatorC housing.
14. Secure wiring retainer (arrow) on back of alternatorC in 3 o'clock position.
15. Tighten threaded connections to specified torque .
16. ⚠ Before installing engine cover panel, check correct position of 4 attachment elements (ball sockets) and, if necessary, return them to their position. Otherwise, the engine cover panel will be damaged. — Place engine cover panel on attachment points and press into locking points at corners.
17. Reconnect batteryA.
18. Start engine and check belt running.
19. Stop engine.

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