Cylinder Head, Installing

Cylinder head, installing

Note:
^ Replace cylinder head bolts.
^ When performing repairs, replace seals, gaskets, self-locking nuts and bolts which have a specified tightening angle.
^ Secure all hose connections with standard hose clamps.
^ When performing repair work, carefully remove any remains of gasket material from cylinder head and cylinder block.
^ Make sure that no long scores or scratches are made on surfaces.
^ Carefully remove any remaining emery and abrasive material.
^ Remove new cylinder head gasket from packaging just before installation.
^ Handle gasket extremely carefully. Damaging the silicone layer or indented area will lead to leaks.
^ No oil or coolant must be allowed to remain in blind holes for cylinder head bolts in cylinder block.





- Before positioning cylinder head, set crankshaft and camshaft to TDC No. 1 cylinder.





- Loosen bolts -1- and -2- on turbocharger bracket approximately 2 turns to avoid setting up stresses when installing cylinder head.





- Place cylinder head gasket in position.
^ Note position of centering pins in cylinder block (arrows).
^ Check installed position of cylinder head gasket: Part No. should be visible from intake side.
- Position cylinder head.
- Insert cylinder head bolts and hand-tighten.





- Tighten cylinder head bolts in two stages in sequence shown as follows:
- Tighten using torque wrench:
^ Step 1: 40 Nm
- Tighten with normal fixed wrench:
^ Step 2: 180° (1/2 turn) further (2 x 90° turns permissible)

Note: It is not necessary to re-tighten cylinder head bolts after repairs have been performed.

- Bolt turbocharger with new gasket to exhaust manifold and bolt bracket to cylinder block.
- Install cylinder head cover
- Install toothed belt (adjust valve timing).
- Install ribbed belt and ribbed belt tensioner.
- Install intake manifold.
- Replace coolant.

See Caution for connecting Telematics battery
- After connecting battery, enter radio anti-theft code:
-> Radio operating instructions
- Use electric window lifters to completely close door windows.
- Then actuate all window lifter switches again for at least 1 second in close position to activate automatic one-touch function.
- Set clock to correct time.
- Perform adaptation of throttle valve control module:

Tightening torques

Tightening torques: