Removing and installing alternator - vehicles with 1.0 ltr. TFSI engine — AUDI

🧭 Before you start

Disconnect the battery, remove the poly V-belt tensioner and the washer reservoir filler neck, then unbolt the alternator. Disconnect the B+ wire and connector, push the coolant line aside and lift the alternator out upwards. On installation, drive the mounting bushes back slightly so they slide freely, refit the parts in reverse, reconnect the battery and run the engine to check the belt tracks properly.

Fits: Audi A1 (8X, 2010–2018)

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• If the alternator sticks, refit the bolts to their last two turns and tap the heads to free the bushes.
• Mounting bushes must slide freely; a stiff bush gives insufficient clamping even at correct torque.
• Press the coolant line aside gently when lifting the alternator out — do not lever against it.
• After reconnecting the battery, start the engine and check the belt runs properly.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

1. Disconnect batteryA.
2. Remove tensioner for poly V-belt 13Cylinder block (pulley end); Removing and installing tensioner for poly V-belt.
3. Remove filler neck for washer fluid reservoir .
4. Remove bolts (arrows).
5. Detach alternatorC slightly, unscrew nut (2) and move electrical wire (1) clear.

6. Unplug electrical connector (3) on alternatorC.
7. Press coolant line (2) to one side and remove alternatorC(item 1) upwards, as shown in illustration. [Note: If the alternatorC sticks in the bracket, screw the 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.]
8. To facilitate positioning of alternatorC, 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.]
9. Connect batteryA.
10. Start engine and check that belt runs properly.

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