Removing and installing alternator - vehicles with 1.6 ltr. and 2.0 ltr. TDI engine — AUDI

🧭 Before you start

Fits: Audi A3 (8V, 2012–2020); platform code 85

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• If alternator sticks in bracket, screw bolts back in again down to the last 2 turns.Tap carefully on bolt heads with flat side of hammer to release bushes of alternator mountings.
• Stiff alternator mount bushes must be freed; otherwise the clamping force of the bush will not be adequate even when the bolts are tightened to the correct torque.

📋 Procedure

1. Disconnect earth cable from battery with ignition switched off .
2. Remove tensioner for poly V-belt 13Cylinder block (pulley end); Removing and installing tensioner for poly V-belt.
3. Detach air conditioner compressor at bracket Heating, air conditioning87Air conditioner compressor; Detaching and attaching air conditioner compressor at bracket.
4. Remove bolts (arrows). [Note: If alternator sticks in bracket, screw bolts back in again down to the last 2 turns.Tap carefully on bolt heads with flat side of hammer to release bushes of alternator mountings.]
5. Remove alternator (1) from mounting with electrical wiring still connected.

6. Unplug electrical connector (5).
7. Pry off cap (4).
8. Unscrew nut and remove terminal 30/B+ (item 3).
9. Unscrew nut (6) and pull off clamp (2).
10. Remove alternator downwards and to the right.
11. ⚠ Risk of damage to air conditioner compressor and refrigerant lines/hoses.Take care to avoid straining, kinking or bending refrigerant lines/hoses. — To facilitate positioning of alternator, drive back bushes for securing bolts slightly. [Note: Stiff alternator mount bushes must be freed; otherwise the clamping force of the bush will not be adequate even when the bolts are tightened to the correct torque.]
12. Connect battery. Steps required .
13. Start engine and check that belt runs properly.

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