Overview - Balance Shaft Drive Chain

WARNING: This page is about a different variant/trim than selected.

NOTE:

After performing work on the chain drive the adaptation value in the Engine/Motor Control Module must be adapted. To do so, turn on the ignition and select the following menu items on the Vehicle Diagnostic Tester:

01 - Engine Electronics

Guided Functions

01 - Adaptation after repair work on the chain drive

Fig 1: Balance Shaft Drive Chain

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Guide Pin
- 20 Nm
Tensioning Rail
- For the timing chain
Balance Shaft
- Must be replaced after removing
- Exhaust side
- Lubricate the bearing with engine oil
- Replacing. Refer to EXHAUST SIDE BALANCE SHAFT, REMOVING AND INSTALLING .
Guide Pin
- 20 Nm
Guide Rail
- For the timing chain
Chain Tensioner
- 85 Nm
- Install with locking fluid. Refer to the Parts Information.
Seal
Cylinder Block
O-Ring
- Coat with engine oil
Mounting Pin
- Lubricate with engine oil
- Installation position. Refer to Fig 2.
Intermediate Sprocket
- The intermediate sprocket must be replaced if the bolt -item ) OVERVIEW - BALANCE SHAFT DRIVE CHAIN - List Item: Bolt is loosened.
Thrust Washer
Bolt
- Replace after removing.
- The intermediate sprocket -item ) OVERVIEW - BALANCE SHAFT DRIVE CHAIN - List Item: Intermediate Sprocket must be replaced if the bolt was loosened
- Tightening sequence. Refer to Fig 3.
Guide Rail
- For balance shaft timing chain
Guide Pin
- 20 Nm
Balance Shaft
- Must be replaced after removing
- Intake side
- Lubricate the bearing with engine oil
- Replacing. Refer to INTAKE SIDE BALANCE SHAFT, REMOVING AND INSTALLING .
Three Stage Chain Sprocket
- Installation position. Refer to Figure.
Balance Shaft Drive Chain
- Removing and installing. Refer to BALANCE SHAFT DRIVE CHAIN, REMOVING AND INSTALLING .

Mounting pins - installation position

Fig 2: Bearing Pins Installation Position

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Replace and lubricate the O-Ring -1-
The alignment pin -arrow- for the bearing pins must engage in the hole in the cylinder block.
Lubricate the bearing pins

Intermediate Sprocket Tightening Sequence

Fig 3: Identifying Intermediate Shaft Sprocket

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

Always replace the intermediate sprocket. Otherwise the backlash will not adjust itself and it could result in engine damage.

The new intermediate sprocket has an anti-friction coating that wears off after a short period of use, which automatically adjusts the backlash.

Step	Bolt	Tightening Specification/Additional Turn
1.	-1-	10 Nm
2.	-1-	The intermediate sprocket must not have any play. Loosen and tighten it again if necessary.
3.	-1-	25 Nm
4.	-1-	90° additional turn