Overview - Camshaft Housing

WARNING: This page is about a different car, the 2024 Audi Q7 and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Camshaft Housing

Courtesy of AUDI

Bolt
- 9 Nm
- Replace after removing
Bearing Cap
- Removing and Installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Note the installation position
Alignment Sleeves
Exhaust Camshaft
- Removing and Installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Axial play, measuring. Refer to CAMSHAFT, MEASURING AXIAL CLEARANCE .
- Radial play, measuring. Refer to CAMSHAFT, MEASURING RADIAL CLEARANCE .
- Maximum run out: 0.04 mm
Check Valve
- For the oil separator
O-Ring
- Replace after removing
Seal
- Replace after removing
Bolt
- 9 Nm
Plugs
O-Ring
- Replace after removing
Camshaft Housing
- Shown for cylinder bank 2 (left)
- Removing and Installing. Refer to CAMSHAFT HOUSING, REMOVING AND INSTALLING .
Bolt
- Replace after removing
- Tightening Specifications and Sequence:
  - Cylinder bank 1 (right). Refer to Fig 2.
  - Cylinder bank 2 (left). Refer to Fig 3.
Plug
- 5 Nm +90°
- Replace after removing
Seal
- Replace after removing
Restrictor
- Cylinder bank I 20 Nm
- Cylinder bank II 15 Nm
O-Ring
- Replace after removing
Plug
- 25 Nm
Bolt
- 3 Nm +90°
- Replace after removing
Cam Actuator
- Removing and Installing. Refer to CAM ACTUATOR, REMOVING AND INSTALLING .
O-Ring
- Not available separately; replace if leaking -item 19- OVERVIEW - CAMSHAFT HOUSING or damaged
- Coat with engine oil
- Check for damage
Plug
- 5 Nm +90°
- Replace after removing
Seal
- Replace after removing
Compression Rings
Friction Bearing
- The friction bearing is installed depending on the version. For allocation. Refer to the appropriate Electronic Parts Information.
- For the intake camshaft
- Removing and Installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
Compression Rings
Axial Bearing
Intake Camshaft
- Removing and Installing. Refer to CAMSHAFT, REMOVING AND INSTALLING .
- Axial play, measuring. Refer to CAMSHAFT, MEASURING AXIAL CLEARANCE .
- Radial play, measuring. Refer to CAMSHAFT, MEASURING RADIAL CLEARANCE .
- Maximum run out: 0.04 mm

Cylinder Bank 1 (Right) Camshaft Housing - Tightening Specification and Sequence

Fig 2: Cylinder Bank 1 (Right) Camshaft Housing - Tightening Sequence

Courtesy of AUDI

Replace bolts that were tightened with an additional turn after removing them.

-- Tighten the bolts in the steps in the sequence shown:

Step	Bolts	Tightening Specification/Additional Turn
1.	-1 to 20-	Install all the way by hand The camshaft housing contact surface must lay entirely on top of the cylinder head
2.	-1 to 20-	8 Nm
3.	-1 to 20-	90° additional turn

Cylinder Bank 2 (Left) Camshaft Housing - Tightening Specification and Sequence

Fig 3: Cylinder Bank 2 (Left) Camshaft Housing - Tightening Sequence

Courtesy of AUDI

Replace bolts that were tightened with an additional turn after removing them.

-- Tighten the bolts in the steps in the sequence shown:

Step	Bolts	Tightening Specification/Additional Turn
1.	-1 to 19-	Install all the way by hand The camshaft housing contact surface must lay entirely on top of the cylinder head
2.	-1 to 19-	8 Nm
3.	-1 to 19-	90° additional turn