Overview - Timing Chain Covers

WARNING: This page is about a different car, the 2015 Audi Q7, 2014 Audi Q7, 2013 Audi Q7, 2012 Audi Q7, and 2011 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Timing Chain Covers Overview

Courtesy of AUDI OF AMERICA, LLC

Bolt
- Tightening specification and sequence. Refer to Fig 4.
Shaft Seal
- For the crankshaft on the transmission side
- Replacing. Refer to CRANKSHAFT SEAL, REMOVING AND INSTALLING, TRANSMISSION SIDE .
Bolt
- Tightening specification and sequence. Refer to Fig 4.
Alignment Sleeve
- Quantity: 2
Timing Chain Cover Lower Section
- Sleeve installation instructions. Refer to Installing
- Removing and installing. Refer to LOWER TIMING CHAIN COVER, REMOVING AND INSTALLING
Threaded Pin
- Tightening specification -item 13- OVERVIEW - OIL FILTER HOUSING .
Left Cylinder Head Gasket
Bolt
- Replace
  Tightening specification and sequence. Refer to Fig 2
Bracket
- For wiring harness
Bracket
- For wiring harness
Bolt
- Replace
  Tightening specification and sequence. Refer to Fig 2
Left Timing Chain Cover
- Removing and installing. Refer to LEFT AND RIGHT TIMING CHAIN COVER, REMOVING AND INSTALLING
Seal
- Replace
Seal
- Replace
Right Cylinder Head Gasket
Right Timing Chain Cover
- Removing and installing. Refer to LEFT AND RIGHT TIMING CHAIN COVER, REMOVING AND INSTALLING
Nut
- 9 Nm
Bracket
- For electric wires
Threaded Pin
- Tightening specification and sequence. Refer to Fig 3
Bracket
- For heat shield
Bolt
- Replace
- Tightening specification and sequence. Refer to Fig 3
Alignment Sleeve
- Quantity: 2
Bolt
- Replace
- Tightening specification and sequence. Refer to Fig 3
Cover
- For the opening for the starter
Engine Speed Sensor -G28-
Bolt
- Tightening specification. Refer to Special Tools .
Cover
- for Engine Speed Sensor -G28-

Fig 2: Identifying Left Timing Chain Cover Bolt Loosening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Replace any bolts that were tightened with an additional turn.

The brackets -arrows A and B- are connected with the left timing chain cover.

-- Tighten the bolts in two steps in the sequence shown.

Step	Bolts	Tightening Specification/Additional Turn
1.	-1 to 8-	5 Nm
2.	-1 to 8-	Tighten 90° additional turn

Fig 3: Identifying Right Timing Chain Cover Bolt, Tightening/Loosening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Replace any bolts that were tightened with an additional turn.

The mount -arrow- is affixed with the right timing chain guard.

-- Tighten the bolts in two steps in the sequence shown.

Step	Bolts	Tightening Specification/Additional Turn
1.	-1 to 8-	5 Nm
2.	-1 to 8-	Tighten 90° additional turn

Fig 4: Identifying Lower Timing Chain Cover Bolt Loosening And Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Replace any bolts that were tightened with an additional turn.

-- Tighten bolts in stages as follows:

Step	Bolts	Tightening Specification/Additional Turn
1.	-Arrows-	3 Nm
2.	-1 to 10-	3 Nm diagonally
3.	-1, 2, 4, 5 and 7-	Tighten 90° additional turn
4.	-Arrows-	9 Nm
5.	-8, 9, and 10-	8 Nm
6.	-8, 9, and 10-	Tighten 90° additional turn
7.	-3-	16 Nm
8.	-6-	20 Nm
9.	-6-	Tighten 180° additional turn