Overview - Cylinder Head
WARNING: This page is about a different car, the 2023 Volkswagen Atlas. However, it is still accessible from the selected car via links, so may be relevant.
- Bracket
- For the fuel hose
- 10 Nm
- Cap
- Replace the seal if damaged.
- Cylinder Head Cover
- With integrated crankcase ventilation
- Removing and Installing. Refer to CYLINDER HEAD COVER, REMOVING AND INSTALLING .
- Bolt
- With a spacer sleeve and seal
- Replace the seal if it is damaged.
- Tightening sequence and tightening specification. Refer to Fig 3.
- Cylinder Head Cover Gasket
- Replace if damaged or leaking
- Note the installation position
- Lifting Eye
- With the knock sensor connector retaining plate
- 23 Nm
- Intake Manifold Support
- 23 Nm
- 10 Nm
- 10 Nm
- Connection
- To the Heater Core
- Seal/Gasket
- Always replace after removing
- Note the installation position
- Chain Tensioner, 50 Nm
- For the camshaft timing chain
- Only rotate the engine with chain tensioner installed
- Cover
- Can be removed and installed with the engine installed
- Coat the sealing surface with Sealant:D 176 501 A1
- Seal
- For Camshaft Adjustment Valve 1 -N205- and Exhaust Camshaft Adjustment Valve 1 -N318-
- Replace if damaged or leaking
- Installing. Refer to CAMSHAFT ADJUSTER VALVE SEAL, REMOVING AND INSTALLING .
- 8 Nm
- 8 Nm
- Coolant Pipe
- With clips for vacuum line
- 23 Nm
- Guide Rail
- For the camshaft timing chain
- 23 Nm
- Insert with Locking Fluid:D 000 600 A2
- Connection
- Bolt on in front of cylinder head installation
- O-Ring
- Replace
- Seal
- Always replace after removing
- Cylinder Head Gasket
- Metal gasket
- Always replace after removing
- Cylinder Head Gasket, Replacing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .
- After replacing, replace the entire amount of coolant.
- Cylinder Head
- Checking for distortion. Refer to Fig 4.
- Removing and Installing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .
- After replacing, replace the entire amount of coolant.
- Cylinder Head Bolt
- Always replace after removing
- Coat the bolt with Locking Fluid:D 197 300 A2 before installing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING => .
- Pay attention to the tightening sequence and the tightening specification when tightening. Refer to Fig 2.
Cylinder head tightening sequence and tightening specification
| Step | Bolts | Tightening Specification |
|---|---|---|
| 1. | -1- through -20- | 15 Nm |
| 2. | -1- through -20- | 30 Nm |
| 3. | -1- through -20- | 90° additional turn |
| 4. | -1- through -20- | 90° additional turn |
Cylinder head cover tightening sequence and tightening specification
| Step | Bolts | Tightening Specification |
|---|---|---|
| 1. | -1- through -17- | Hand-tight |
| 2. | -1- through -17- | 10 Nm |
Cylinder Head, Checking for Distortion
Special tools and workshop equipment required
- Straight Edge - 500mm:VAS 6075
- Feeler Gauge
Maximum permissible distortion: 0.05 mm