1.4 TSI engine (EA111) · Cylinder head, valve gear · Chain drive

Checking timing chain

Special tools and workshop equipment required

  • Torque wrench - VAS 6583-
  • Tester for checking elongation of chain links - T10550-
  • Camshaft clamp - T10550/1-
  • Indicator - T10550/2-
  • Scale sleeve - T10550/3-
  • The engine oil temperature must be at least 40°C ⇒ Vehicle diagnostic tester.
  • The engine must necessarily not be at »TDC« position.
  • Remove right front wheel ⇒ Running gear, axles, steering; Rep. gr. 44; Wheels, tyres.
  • Remove noise insulation ⇒ Body, front; Rep. gr. 50; Noise insulation; Assembly overview - noise insulation.
  • Remove front right wheel housing liner: ⇒ General body repairs, exterior; Rep. gr. 66; Removing and installing wheel housing liner.
  • Remove poly V-belt ⇒ 13 – Crankshaft group.
  • Drain coolant ⇒ 1.6 Draining and filling coolant (Polo).

Vehicles with condensate trap on charge air pipe

  • Open clamps -arrows-.
  • Pull coolant hoses -1- off charge air pipe -2-, and clamp them off using hose clips up to 40 mm - 3093-.

Vehicles with engine preheating element - Z97-

  • Unclip wire -1- to engine preheater heater element - Z97- on charge air pipe -2- -arrow-.

Vehicles with auxiliary/supplementary heater:

  • Open hose clips, and pull coolant hoses off coolant pipes -1-.
  • Remove auxiliary/supplementary heater with exhaust pipe and coolant hoses still connected ⇒ Auxiliary heater, supplementary heater; Rep. gr. 82; auxiliary/supplementary heater; Removing and installing auxiliary/supplementary heater.

Continued for all vehicles:

  • Pull off securing clip on charge air cooler in -direction of arrow-.
  • Pull charge air hose -arrow- off charge air cooler.
  • Remove securing bolt -arrow- for charge air pipe -1-.
  • Release and pull off connector -1- on oil level and oil temperature sender - G266-.
  • Unclip bracket -2- on subframe for electric wire to oil level and oil temperature sender - G266-.
  • Unscrew securing bolt -arrow- for charge air pipe -1-.
  • Pull off fuel supply line -1- and line leading to activated charcoal filter -2- by pressing release tabs.
  • Pull off hose -1- from pressure pipe.
  • Unscrew securing bolts -2- from pressure pipe and remove pressure pipe.
  • Unscrew hose clip -1- on charge air pipe.
  • Open hose retainer -2- and pull out hose.
  • Unscrew securing bolt for charge air pipe -3- and pull off connector from charge air pressure sender - G31- with intake air temperature sender 2 - G299-.
  • Remove bracket -4-.
  • To do this, unscrew bolts -arrows-.
  • Remove bracket -1-.
  • Unscrew bolts -arrows- and remove charge pressure sender - G31- -1-.
  • Remove charge air pipe downwards.
  • Release connector -2- and pull off.

Disregard item -1-.

  • Remove bolts for both camshaft covers -3-.
  • Unclip wiring harness -1-.
  • Pull coolant pipe -2- and wiring harness -1- away from cylinder head.
  • Lever both camshaft covers -3- out of cylinder head.
  • The hole in the left exhaust camshaft -left arrow- must be positioned as shown in the illustration.
  • If necessary, turn crankshaft in direction of engine rotation.
  • Insert camshaft clamp - T10550/1- to stop in camshaft openings.
  • The locking pin -arrow A- must engage in hole -arrow B- in exhaust camshaft.
  • Inscription “TOP” must be readable from above.
  • Bolt on camshaft clamp - T10550/1- hand-tight.
  • Use one bolt of the camshaft covers for this purpose -arrow-.
  • Screw indicator - T10550/2- into hole in sump.
  • Align centring point vertically so that the tip faces upwards.
  • Tighten centring point with knurled nut.
  • Position scale sleeve - T10550/3- on belt pulley.

The scale sleeve - T10550/3- is equipped with magnets.

Proceed with great care when joining the components.

Note that the components are drawn together quickly by the magnetic force.

  • Align scale sleeve - T10550/3- with indicator - T10550/2- as shown in illustration.
  • Apply torque wrench - VAS 6583- with a suitable socket to crankshaft bolt.
  • Push torque wrench - VAS 6583- clockwise and maintain a torque of 40 Nm on it.
  • Set scale sleeve - T10550/3- and indicator - T10550/2- to »0«.

Evaluation of the test

Assemble in reverse order of dismantling. During this procedure, observe the following:

  • Turn scale sleeve - T10550/3- towards right by approx. 45° so that indicator - T10550/2- is not positioned within range of scale.
  • Grasp behind scale sleeve - T10550/3- with both hands.
  • Press thumbs against bolt of belt pulley, and pull off scale sleeve - T10550/3-.
  • Renew oil seals for camshaft sealing cover and oil them before fitting.
  • Add coolant ⇒ 1.6 Draining and filling coolant (Polo).

Specified torques