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 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 Exploded View

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Crankshaft Chain Sprocket
- Installation position. Refer to Figure.
Guide Pin
- 20 Nm
Tensioning Rail
- For balance shaft drive chains
Balance Shaft Drive Chain
- Removing and Installing. Refer to BALANCE SHAFT DRIVE CHAIN, REMOVING AND INSTALLING .
Guide Pin
- 20 Nm
Exhaust Side Balance Shaft
- Overview. Refer to OVERVIEW - BALANCE SHAFT .
Chain Tensioner
- 85 Nm
Seal
- Replace after removing.
- Coat with Sealant: D 154 103 A1
Cylinder Block
Intake Side Balance Shaft
- Overview. Refer to OVERVIEW - BALANCE SHAFT .
O-Ring
- Lubricate 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
- Tightening Specifications and Sequence. Refer to Fig 3.
- Replace after removing.
- The intermediate sprocket -item ) OVERVIEW - BALANCE SHAFT DRIVE CHAIN - List Item: Intermediate Sprocket must be replaced if the bolt is loosened.
Guide Rail
- For balance shaft drive chains
Guide Pin
- 20 Nm
Guide Rail
- For the balance shaft timing chain
Guide Pin
- 12 Nm

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.

-- Tighten with a new bolt as follows:

Step	Bolts	Tightening Specification/Additional Turn
1.	-1-	10 Nm
2.	-1-	-- Turn the intermediate sprocket The intermediate sprocket must not have any play otherwise loosen and tighten it again.
3.	-1-	25 Nm
4.	-1-	90° additional turn