Fastener Tightening Specifications

Component

Fastener Size

Air Conditioning Compressor to Accessory Bracket Bolt

Connecting Rod Bolt ⁽¹⁾

45 + 90°

Dual Mass Flywheel to Crankshaft Bolt ⁽¹⁾

60 + 90°

Generator to Accessory Bracket Bolt

Pressure Relief Valve

Ribbed Belt Tensioner Bolt

Sensor Wheel to Crankshaft Screw ⁽¹⁾

10 + 90°

Vibration Damper to Crankshaft Bolt ⁽¹⁾

150 + 90°

⁽¹⁾	Always replace

Accessory Bracket Bolt Tightening Sequence and Specification

Fig 1: Identifying Accessory Assembly Bracket Tightening Sequence

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Position the accessory bracket and then install the bolt -4-. Tighten the bolts in 3 passes in sequence -1 through 5- :

-- First pass, tighten the bolts by hand.

-- Second pass, tighten the bolts to 20 Nm.

-- Final pass, tighten the bolts an additional 90° (1/4) additional turn.

Transmission Side Sealing Flange Bolt Tightening Sequence and Specification

Fig 2: Identifying Sealing Flange Tightening Sequence

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Tighten the bolts in 2 passes in sequence -1 through 8- :

-- First pass, tighten the bolts by hand.

-- Final pass, tighten the bolts to 9 Nm.

Crankshaft Bearing Cap Bolt Tightening Sequence and Specification

Fig 3: Identifying Crankshaft Bearing Cap Bolt Tightening Sequence and Specification

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Tighten the crankshaft bearing cap bolts in sequence -1 through 10- :

-- Tighten the bolts -1 through 10- and the -arrows- by hand.

-- Tighten the bolts -1 through 10- to 65 Nm.

-- Tighten the bolts -1 through 10- an additional 90° (1/4) turn using a ratchet.

-- Tighten the bolts -arrows- to 20 Nm.

-- Tighten the bolts -arrows- an additional 90° (1/4) turn using a ratchet.