Fastener Tightening Specifications

Component

Fastener Size

Charge Air Cooler Mount Bolt

Charge Air Pipe to Cylinder Block

Charge Air Pressure Sensor to Charge Air Pipe Bolt

Charge Air Regulation Vacuum Diaphragm to Turbocharger Bolt

Charge Air System Noise Generator Bracket Nut ⁽³⁾

Charge Air System Noise Generator to Bracket Bolt ⁽³⁾

Connection to Turbocharger Bolt

Coolant Return Line Bracket to Turbocharger Bolt

Coolant Return Line to Turbocharger Banjo Bolt

Coolant Supply Line Bracket to Cylinder Block Bolt

Coolant Supply Line to Cylinder Block Banjo Bolt

Coolant Supply Line to Turbocharger Banjo Bolt

Fastening Strip Nut ⁽¹⁾

Oil Return Line to Cylinder Block Bolt

Oil Return Line to Turbocharger Bolt

Oil Supply Line Bracket to Turbocharger Bolt

Oil Supply Line to Cylinder Block Bolt

Oil Supply Line to Turbocharger Banjo Bolt

Plenum Chamber Bulkhead Bolt

Structure Borne Sound Actuator to Bracket Nut ⁽³⁾

Structure Borne Sound Actuator Bracket to Plenum Chamber Bolt ⁽³⁾

Structure Borne Sound Control Module to Bracket Bolt ⁽³⁾

Structure Borne Sound Control Module Bracket to Plenum Chamber Nut ⁽³⁾

Turbocharger Recirculation Valve to Turbocharger Bolt

Turbocharger Support to Cylinder Block Bolt ⁽²⁾

Turbocharger Support to Turbocharger Bolt ⁽²⁾

Wastegate Bypass Regulator Valve to Turbocharger Bolt

⁽¹⁾	Always replace

⁽²⁾	Lubricate the bolts with hot bolt paste

⁽³⁾	Jetta/GLI for MY 08 through 10, Jetta SportWagen (US)/Jetta Wagon (Canada) for MY 09 only

Turbocharger Nut Tightening Sequence and Specification

Fig 1: Identifying Turbocharger Tightening Sequence

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Tighten the nuts in 4 passes in sequence -1 through 5- as follows:

-- Tighten the nuts to 5 Nm.

-- Tighten the nuts to 12 Nm.

-- Tighten the nuts to 16 Nm.

-- Tighten the nuts to 25 Nm.