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How to Replace timing chain on BMW 316i E46

Special tools

  • Exhaust camshaft alignment tool – BMW No.11 9 291/3.
  • Inlet camshaft alignment tool – BMW No.11 9 292.
  • Flywheel timing pin – BMW No.11 9 190.
  • Sensor gear alignment tool – BMW No.11 9 350.
  • Timing chain pre-tensioning tool – BMW No.11 9 340.

General precautions

  • Disconnect battery earth lead.
  • Remove spark plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • Observe tightening torques.
  • If fitted: Mark position of crankshaft position (CKP) sensor before removal.
  • Do NOT turn crankshaft via camshaft or other sprockets.
  • Do NOT turn crankshaft or camshaft with timing chain removed.

Valve timing procedures

How to Replace timing chain on BMW 316i E46
How to Replace timing chain on BMW 316i E46
  • Removal/installation of timing chain requires:
      • Sump removal.

    NOTE: Refer to Autodata Technical Data for tightening torques.

    NOTE: Refer to Technical Data module for tightening torques.

  • Engine at TDC on No.1 cylinder.
  • Remove blanking plug from cylinder block.
  • Insert flywheel timing pin [1] . Tool No.11 9 190.
  • Ensure rear of camshafts correctly aligned [2] .NOTE: Curved profile at rear of camshaft points upwards [3] .
  • Install inlet camshaft alignment tool [4] . Tool No.11 9 292.
  • Install exhaust camshaft alignment tool [5] . Tool No.11 9 291.
  • Timing correct when inlet camshaft alignment tool abuts cylinder head or is raised up to a maximum of 0,5 mm on inlet side. Timing correct when exhaust camshaft alignment tool abuts cylinder head or is raised up to a maximum of 1 mm on inlet side.
  • If not, adjust camshafts as follows:
        • Slacken bolt on each camshaft adjuster and then re-tighten by hand [6] .
        • Install inlet camshaft alignment tool [4] . Tool No.11 9 292.
        • Align inlet camshaft. Ensure inlet camshaft alignment tool abuts cylinder head.
        • Install exhaust camshaft alignment tool [5] . Tool No.11 9 291.
        • Tighten exhaust camshaft alignment tool to cylinder head.
        • Tighten bolt on exhaust camshaft alignment tool until it rests on inlet camshaft alignment tool [7] .
        • Tighten inlet camshaft alignment tool to cylinder head [4] .

    NOTE: Tensioner plunger is spring loaded.

        • Remove tensioner [8] .

    NOTE: If chain tensioner is to be reused it must be drained of oil. Compress plunger slowly twice.

        • Install timing chain pre-tensioning tool [9] . Tool No.11 9 340.
        • Tighten adjusting screw until in contact with guide rail. DO NOT overtighten screw.
        • Replace bolt on each camshaft adjuster and re-tighten by hand [6] .
        • Install sensor gear alignment tool and secure to cylinder head [10] . Tool No.11 9 350.
        • Slacken bolt of each camshaft adjuster by half a turn [6] .
        • Pre-load timing chain with tensioning tool to 0,6 Nm [9] . Tool No.11 9 340.

    NOTE: Bolt for camshaft adjusters MUST only be used once.

  • Tighten bolt of each camshaft adjuster [6] .
  • Tightening sequence:
      • First stage – 20 Nm.
      • Second stage – 90°.
      • Third stage – 90°.
  • Remove flywheel timing pin [1] .
  • Remove sensor gear alignment tool [10] .
  • Remove camshaft alignment tools [4] & [5] .
  • Remove timing chain pre-tensioning tool [9] .
  • Install tensioner assembly [8] . Tightening torque: 65 Nm.
  • Turn crankshaft two turns clockwise.
  • Ensure flywheel timing pin and camshaft alignment tools can be refitted [1] , [4] , [5] & [10] .
  • Timing correct when camshaft alignment tools abut cylinder head [4] & [5] .NOTE: Crankshaft pulley central bolt MUST only be used once.
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