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How to Replace timing belt on VW Golf 4 1.8 T

Replacement Interval Guide

  • Volkswagen recommend:
  • Check at the first 60,000 miles and then every 20,000 miles (replace if necessary).
  • Replacement every 120,000 miles (tensioner pulley must also be replaced).

NOTE: Volkswagen UK recommend the timing belt is replaced every 4 years if the replacement mileage is not reached.

  • 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.

Repair Times – hrs

Remove & install 2,20

Special Tools

  • 1 x M5 x 55 mm stud and nut.

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.
How to Replace timing belt on VW Golf 4 1.8 T
How to Replace timing belt on VW Golf 4 1.8 T

Removal

  1. Raise and support front of vehicle.
  2. Remove:
      • Engine upper cover.
      • RH engine undershield.
      • Golf/Bora: RH headlamp.
      • Intercooler to turbocharger hose.
      • Auxiliary drive belt.
      • Auxiliary drive belt tensioner [1] .
  3. Turn crankshaft to TDC on No.1 cylinder.
  4. Ensure timing marks aligned [2] or [3] .
  5. Remove:
      • Coolant expansion tank. DO NOT disconnect hoses.
      • PAS reservoir. DO NOT disconnect hoses.
      • Fuel vapour hose from charcoal canister to throttle body.
      • Timing belt upper cover [5] .
  6. Ensure camshaft sprocket timing marks aligned [4] .
  7. Support engine.
  8. Remove:
      • RH engine mounting bolts [6] , [7] & [8] .
      • RH engine mounting.
      • Engine mounting bracket bolts [9] .
      • Engine mounting bracket.
      • Crankshaft pulley bolts [10] .
      • Crankshaft pulley [11] .
      • Timing belt centre cover [12] .
      • Timing belt lower cover [13] .
  9. Insert M5 stud into tensioner [14] .
  10. Fit nut and washer to stud [15] . Tighten nut sufficiently to allow a suitable locking pin to be inserted [16] .

    NOTE: DO NOT overtighten nut.

  11. Remove timing belt.

    NOTE: Mark direction of rotation on belt with chalk if belt is to be reused.

Installation

  1. Ensure timing marks aligned [3] & [4] .
  2. Fit timing belt in following order:
      • Crankshaft sprocket.
      • Water pump sprocket.
      • Tensioner pulley.
      • Camshaft sprocket.

    NOTE: Ensure belt is taut between sprockets on non-tensioned side.

  3. Remove locking pin [16] .
  4. Remove nut and stud [14] & [15] .
  5. Turn crankshaft two turns clockwise. Ensure timing marks aligned [3] & [4] .
  6. Fit engine mounting bracket.
  7. Tighten engine mounting bracket bolts to 45 Nm [9] .
  8. Install:
      • Timing belt lower cover [13] .
      • Crankshaft pulley [11] .
      • Crankshaft pulley bolts [10] .
  9. Tighten crankshaft pulley bolts [10] . Tightening torque: 25 Nm.
  10. Fit engine mounting.
  11. Tighten:
      • Engine mounting bolts [8] . Tightening torque: 40 Nm + 90°. Use new bolts.
      • Engine mounting bolts [7] . Tightening torque: 25 Nm.
      • Engine mounting bolts [6] . Tightening torque: 60 Nm + 90°. Use new bolts.
  12. Check engine mounting alignment:
      • Engine mounting clearance: 14 mm [17] .
      • Engine mounting clearance: 10 mm minimum [18] .
      • Ensure engine mounting bolts [6] aligned with edge of mounting [19] .
  13. Install components in reverse order of removal.

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