Overview - Timing Chain Cover, Engine With Two Camshaft Adjusters

WARNING: This page is about a different car, the 2018 Audi Q3 Quattro, 2018 Audi Q3, 2017 Audi Q3 Quattro, and 2017 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Timing Chain Cover (Engine With Two Camshaft Adjusters)

Courtesy of AUDI OF AMERICA, LLC

Bolts
- Tightening Specifications:
  - Steel bolt 9 Nm
  - Aluminum bolt 4 Nm +45°
- Aluminum bolt: Always replace after removal
Exhaust Camshaft Adjustment Valve 1 -N318-
- Always replace the O-ring, refer to -item 9-.
- Removing and installing. Refer to Camshaft Adjustment Valve 1 -N205-, REMOVING AND INSTALLING .
Seals
- Always replace after removing
- Coat with oil before assembly
Upper Timing Chain Cover
- Removing and installing. Refer to TIMING CHAIN COVER, REMOVING AND INSTALLING, ENGINE WITH TWO CAMSHAFT ADJUSTERS .
Seal
- Always replace if damaged
Cap
Bolt
- Tightening sequence. Refer to Fig 2.
Seal
- Always replace if damaged
O-ring
- Always replace after removing
- Coat with oil before assembly
Not Installed
Engine
Alignment Pins
- Centering the cover
Lower Timing Chain Cover
- With gasket
- Replacing. Refer to LOWER TIMING CHAIN COVER, REPLACING .
Seal
- For the vibration damper
- Replacing. Refer to VIBRATION DAMPER SEAL, REPLACING .
Plugs
- Always replace after removing
Bolt
- Tightening specifications and sequence
  - With 15 bolts. Refer to Fig 3.
  - With 8 bolts. Refer to Fig 4.
- Always replace after removing
O-ring
- Always replace after removing
- Coat with oil before assembly
Oil Dipstick Tube
Bolt
- 9 Nm
Camshaft Adjustment Valve 1 -N205-
- Always replace the O-ring, refer to -item 9-.
- Removing and installing. Refer to Camshaft Adjustment Valve 1 -N205-, REMOVING AND INSTALLING .

Fig 2: Upper Timing Chain Cover Bolts Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -1 to 6- in the sequence shown to 9 Nm.

Fig 3: Lower Timing Chain Cover Bolts - Tightening Sequence (15 Bolts)

Courtesy of AUDI OF AMERICA, LLC

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

-- Tighten the bolts in the steps shown in the sequence (15 Bolt):

Step	Bolts	Tightening Specification/Additional Turn
1.	-1 to 15-	Install by hand all the way
2.	-1 to 15-	8 Nm
3.	-1, 2, 4, 5- and -7 to 15-	45° additional turn
4.	-3 and 6-	After installation of the vibration damper a 45° additional turn

Fig 4: Lower Timing Chain Cover Bolts - Tightening Sequence (8 Bolts)

Courtesy of AUDI OF AMERICA, LLC

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

-- Tighten the bolts in the steps shown in the sequence (8 Bolt):

Step	Bolts	Tightening specification/additional turn
1.	-1 to 8-	Install by hand all the way
2.	-1 to 8-	8 Nm
3.	-2 and 3- and -5 to 8-	45° additional turn
4.	-1 and 4-	After installation of the vibration damper a 45° additional turn