Overview - Cylinder Head
- Alignment Pin
- Quantity: 2
- Cylinder Head Gasket
- Replacing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .
- Installed position: the part number faces the cylinder head
- Change the coolant and engine oil after replacing
- Perform the adaptation after replacing using the Vehicle Diagnostic Tester 01 - Engine electronics, functions , 01 - Chain length diagnostic adaptation
- Cylinder Head
- Removing and Installing. Refer to CYLINDER HEAD, REMOVING AND INSTALLING .
- Checking for distortion. Refer to Fig 5.
- Do not rework the upper sealing surface
- Only replace the cylinder head and cylinder head cover together
- Change the coolant and engine oil after replacing
- Cap installation and installation position. Refer to Fig 6.
- Perform the adaptation after removing or replacing using the Vehicle Diagnostic Tester 01 - Engine electronics, functions , 01 - Chain length diagnostic adaptation
- Bolt
- Heat Shield
- Equipped on some models
- Bolt
- 9 Nm
- Bolt
- 9 Nm
- Heat Shield
- There are different versions. Refer to the Parts Information for the allocation.
- Bolt
- 9 Nm
- Bolt
- 9 Nm
- Connection
- For coolant hose
- O-Ring
- Replace after removing
- Coat with coolant
- Bolt
- O-Ring
- Replace after removing
- Coat with coolant
- Connection
- For coolant hose
- Bolt
- 9 Nm
- Mount
- For the engine cover
- Engine Lifting Eye
- Bolt
- 10 Nm +90°
- Replace after removing
- Partition Plate
- Ball Pin
- For the engine cover
- Engine Lifting Eye
- Bolt
- 10 Nm +90°
- Replace after removing
- Alignment Pin
Loosening the Cylinder Head
-- Remove the bolts -arrows-.
-- Loosen and remove the cylinder head bolts in the sequence -1 to 10-.
Cylinder Head - Tightening Specifications and Sequence
- Replace bolts that were tightened with an additional turn after removing them.
- Bolt differences:
- Bolt without collar
- Bolt with collar -arrow-
-- Tighten the bolts in the steps in the sequence shown:
| Step | Bolts | Tightening Specification/Additional Turn |
|---|---|---|
| 1. | -1 through 10- | Install all the way by hand |
| 2. | -1 through 10- | "Without the collar" 40 Nm "With the collar" 50 Nm; refer to OVERVIEW - CYLINDER HEAD - Bolt differences: for the difference |
| 3. | -1 through 10- | 90° additional turn |
| 4. | -1 through 10- | 90° additional turn |
| 5. | -arrows- | 10 Nm |
| 6. | -arrows- | 90° additional turn |
Cylinder Head, Checking for Distortion
-- Check the cylinder head at several locations for distortion using a Straight Edge - 500mm: VAS 6075 and a feeler gauge.
- Maximum permitted distortion: 0.05 mm
Cap Installation and Installation Position
-- Before removing, determine the press-in depth -a-.
-- Coat the cap -1- all around with sealant. Refer to Parts Information.
-- Position the cap -1- parallel to the cylinder block and using a suitable thrust piece (for example the socket) -2- drive in to the previously determined press-in depth -a-.