Removing and installing sealing flange (front), engine code AXW, BLX, BHD, BLY, BLR, BMB — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012)

• Special tools named: T10053/1

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• The sealing flange must be installed within 5 minutes after applying the silicone sealant.
• Cut off tube nozzle at front marking (diameter of nozzle approx. 3 mm).
• The sealant bead must not be thicker, as otherwise excess sealant will enter the sump and obstruct the strainer in the oil pump.
• Use guide sleeve T10053/1 from assembly tool T10053 when fitting sealing flange with oil seal in position.
• After installing, allow sealant to dry for approx. 30 minutes Then (and only then) fill the engine with engine oil.

🔧 Engine codes this applies to

📋 Procedure

1. Remove poly V-belt .
2. Remove toothed belt: engine codes AXW, BMB, BHD , engine codes BLX, BLY, BLR, BVY, BVZ .
3. Remove crankshaft sprocket. To do this, counter-hold sprocket with special tool3415.
4. Drain off engine oil.
5. Unscrew bolts (1 ... 6).

6. Lever off sealing flange: release by tapping lightly with a rubber hammer if necessary.
7. Carefully remove any remaining sealant from cylinder block.
8. ⚠ Wear safety goggles. — Use rotating plastic brush to remove sealant residue on sealing flange.
9. Clean the sealing surfaces. The sealing surfaces must be free of oil and grease. [Note: The sealing flange must be installed within 5 minutes after applying the silicone sealant.]
10. Cut off tube nozzle at front marking (diameter of nozzle approx. 3 mm).
11. Apply silicone sealant onto clean sealing surface of sump as illustrated. [Note: The sealant bead must not be thicker, as otherwise excess sealant will enter the sump and obstruct the strainer in the oil pump.]
12. Fit sealing flange immediately and tighten all bolts (1 ... 6) slightly. [Note: Use guide sleeve T10053/1 from assembly tool T10053 when fitting sealing flange with oil seal in position.]
13. Tighten securing bolts of sealing flange in diagonal sequence. [Note: After installing, allow sealant to dry for approx. 30 minutes Then (and only then) fill the engine with engine oil.]
14. Remove oil residue from crankshaft journal with a clean cloth.
15. Install crankshaft sprocket and lock in position with counterhold tool3415. [Note: Thread and shoulder must be free of oil and grease.]
16. Install toothed belt: engine codes AXW, BMB, BHD , engine codes BLX, BLY, BLR, BVY, BVZ .
17. Install poly V-belt .

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