Removing and installing alternator, 74 kW, 1.4 l petrol engine — VW

🧭 Before you start

Fits: VW Polo 9N (2001–2009)

• Timing position: the crankshaft or camshaft is set and locked during this job

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• Ensure when installing engine cover, that the arrow (2) on hose (1) aligns with mark (3) on crankcase breather union (4).
• To disconnect and reconnect the battery, the procedure described in the workshop manual should be strictly adhered to .

📋 Procedure

1. Disconnect battery .
2. Lift off engine cover, by pulling upwards off fasteners (arrows).
3. Disconnect hose (1) from crankcase breather union (4) and remove engine cover from vehicle.
4. Separate connector for DF wire (1) and remove protective cap (2).
5. Unbolt B+ wire (arrow) from alternator. [Note: Before removing, mark the top side and direction of rotation of the 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!If damage is established, to prevent failure or functional faults the poly V-belt must be replaced immediately!It is not necessary to adjust the poly V-belt tension, as a spring loaded tensioner guarantees the best possible belt tension.]

6. Release poly V-belt tension by levering back tensioning element in direction of arrow using a 16 mm open-jaw spanner
7. Lock tensioning element using locking pin T10060(1).
8. Take off poly V-belt.
9. Remove alternator securing bolts (arrows).
10. Remove cable retainer (arrow) from rear of alternator.
11. Remove alternator from vehicle.
12. Drive threaded sleeve (A) about 4 mm in direction of arrow out of alternator housing.
13. Vehicle does not have an air conditioner, tighten cable retainer (arrow) to rear of alternator in 6 o'clock position.
14. Vehicle does have an air conditioner, tighten cable retainer (arrow) to rear of alternator in 4 o'clock position.
15. Ensure when installing engine cover, that the arrow (2) on hose (1) aligns with mark (3) on crankcase breather union (4).
16. Tighten threaded connections to specified torque settings . [Note: To disconnect and reconnect the battery, the procedure described in the workshop manual should be strictly adhered to .]
17. Reconnect battery .
18. Start engine and check belt is running correctly.

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