How to Replace timing belt on Audi A3 8P MK2 1.6 2005-2012

A3 Audi

Аudi А3 Cambelt Change Interval

  • →2003MY: No manufacturer’s recommended replacement interval.NOTE: Audi UK recommend the timing belt is replaced every 5 years.
  • 2004MY→: Audi recommend replacement every 75,000 miles or 5 years.
  • The previous use and service history of the vehicle must always be taken into account.

Check For Engine Damage

 

  • CAUTION: This engine has been identified as an INTERFERENCE engine in which the possibility of valve-to-piston damage in the event of a timing belt failure is MOST LIKELY to occur.

 

  • A compression check of all cylinders should be performed before removing the cylinder head(s).

Repair Times – hrs

Remove & install2,20

Special Tools

  • Engine support – No.10-222A.
  • Two-pin wrench – No.T10020.

Special Precautions

  • Disconnect battery earth lead.
  • DO NOT turn crankshaft or camshaft when timing belt removed.
  • Remove spark plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • DO NOT turn engine via camshaft or other sprockets.
  • Observe all tightening torques.
  • Removal

    1. Raise and support front of vehicle.
    2. Remove:
        • Engine undershield.
        • RH front wheel.
        • RH front inner wing panel.
        • Engine upper cover.
    3. Disconnect:
        • Vacuum pipe to evaporative emission (EVAP) canister.
        • Fuel supply pipe.
    4. Move evaporative emission (EVAP) canister to one side.
    5. Remove:
        • Evaporative emission (EVAP) canister bracket.
        • Windscreen washer reservoir filler neck.
    6. Disconnect coolant expansion tank multi-plug.
    7. Remove:
        • Coolant expansion tank. DO NOT disconnect hoses.
        • Auxiliary drive belt splash shield.
        • Auxiliary drive belt. Lock tensioner in position. Use Allen key.
        • Auxiliary drive belt tensioner.
        • Timing belt upper cover [1] .
    8. Turn crankshaft to TDC on No.1 cylinder.
    9. Ensure crankshaft pulley timing marks aligned [2] .
    10. Ensure camshaft sprocket timing marks aligned [3] .
    11. Remove:
        • Crankshaft pulley bolts [4] .
        • Crankshaft pulley [5] .
        • Timing belt centre cover [6] .
        • Timing belt lower cover [7] .
    12. Install engine support. Tool No.10-222A.
    13. Remove:
        • RH engine mounting bolts [8] [9] [10] .
        • RH engine mounting.
        • RH engine mounting bracket bolts [11] .
        • RH engine mounting bracket [12] .

      NOTE: Engine may need to be raised/lowered slightly.

    14. Slacken tensioner nut [13] . Turn tensioner clockwise away from belt. Use tool No.T10020 [14] . Lightly tighten nut [13] .
    15. Remove timing belt.NOTE: Mark direction of rotation on belt with chalk if belt is to be reused.

    Installation

    1. Ensure camshaft sprocket timing marks aligned [3] .
    2. Fit timing belt to crankshaft sprocket and water pump sprocket.
    3. Install:
        • Timing belt lower cover [7] .
        • Timing belt centre cover [6] .
        • Crankshaft pulley [5] .
        • Crankshaft pulley bolts [4] .
    4. Tighten crankshaft pulley bolts [4] . Tightening torque: 10 Nm + 90°. Use new bolts.
    5. Ensure crankshaft pulley timing marks aligned [2] .
    6. Fit timing belt to tensioner pulley and camshaft sprocket.NOTE: Ensure belt is taut between sprockets on non-tensioned side.
    7. Ensure tensioner retaining lug is properly engaged [15] .
    8. Slacken tensioner nut [13] .
    9. Turn tensioner twice fully anti-clockwise and clockwise from stop to stop. Use tool No.T10020 [14] .
    10. Turn tensioner anti-clockwise until pointer [16] aligned with notch [17] in baseplate. Use tool No.T10020 [14] .
    11. Tighten tensioner nut [13] . Tightening torque: 23 Nm.
    12. Turn crankshaft two turns clockwise to TDC on No.1 cylinder.NOTE: Turn crankshaft last 45° smoothly without stopping.
    13. Ensure camshaft sprocket timing marks aligned [3] .
    14. Ensure crankshaft pulley timing marks aligned [2] .
    15. Ensure pointer [16] aligned with notch [17] in baseplate.
    16. If not: Repeat tensioning procedure.
    17. Apply firm thumb pressure to belt at . Pointer [16] and notch [17] must move apart.
    18. Release thumb pressure from belt at .
    19. Turn crankshaft two turns clockwise to TDC on No.1 cylinder.NOTE: Turn crankshaft last 45° smoothly without stopping.
    20. Ensure camshaft sprocket timing marks aligned [3] .
    21. Ensure crankshaft pulley timing marks aligned [2] .
    22. Ensure pointer [16] aligned with notch [17] in baseplate.
    23. Install:
        • RH engine mounting bracket [12] .
        • RH engine mounting bracket bolts [11] .
    24. Tighten RH engine mounting bracket bolts [11] . Tightening torque: 45 Nm.
    25. Fit and align RH engine mounting:
        • Engine mounting clearance: 16 mm [18] .
        • Ensure engine mounting aligned parallel with engine mounting bracket [19] .
    26. Tighten:
        • Engine mounting bolts [9] . Tightening torque: 40 Nm + 90°. Use new bolts.
        • Engine mounting bolts [8] . Tightening torque: 20 Nm + 90°. Use new bolts.
        • Engine mounting bolts [10] . Tightening torque: 60 Nm + 90°. Use new bolts.
    27. Install components in reverse order of removal.NOTE: The manufacturer recommends bleeding the fuel system before starting engine.
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