Fastener Tightening Specifications

Component

Fastener Size

Bracket to Cylinder Block Bolt ⁽²⁾

Bracket to Turbocharger Bolt ⁽²⁾

Charge Air Pipe Bolt

-- GTI ⁽⁴⁾

-- Eos, Tiguan, Passat, CC and GTI ⁽⁴⁾

Charge Air Pipe Clamp

5.5

Charge Air Pressure Sensor to Charge Air Pipe Bolt

Connection to Turbocharger Bolt

Coolant Return Pipe to Turbocharger Banjo Bolt

Coolant Return Pipe to Turbocharger Bolt

Coolant Supply Pipe to Cylinder Block Banjo Bolt

Coolant Supply Pipe to Cylinder Block Bolt

Coolant Supply Pipe to Turbocharger Banjo Bolt

Drive Axle Heat Shield Bolt

Fastening Strip to Cylinder Head Nut ^{1, 3}

Heat Shield to Cylinder Head Bolt

Mount to Charge Air Cooler Bolt

Noise Generator to Bracket Bolt ⁽⁵⁾

Noise Generator Bracket to Plenum Chamber Bulkhead Nut ⁽⁵⁾

Oil Return Pipe to Cylinder Block Bolt

Oil Return Pipe to Turbocharger Bolt

Oil Supply Pipe to Cylinder Block Bolt

Oil Supply Pipe to Turbocharger Banjo Bolt

Oil Supply Pipe to Turbocharger Bolt

Plenum Chamber Bulkhead Bolt ⁽⁵⁾

Structure-Borne Sound Actuator to Structure-Borne Sound Actuator Bracket Nut ⁽⁶⁾

Structure-Borne Sound Actuator Bracket to Plenum Chamber Bolt ⁽⁶⁾

Structure-Borne Sound Control Module Bracket to Plenum Chamber Nut ⁽⁶⁾

Structure-Borne Sound Control Module to Structure-Borne Sound Control Module Bracket Bolt ⁽⁶⁾

Turbocharger Recirculation Valve to Turbocharger Bolt

Vacuum Diaphragm to Turbocharger Bolt

Wastegate Bypass Regulator Valve to Turbocharge Bolt

⁽¹⁾	Always replace

⁽²⁾	Lubricate the bolt with hot bolt paste,

⁽³⁾	Lubricate the studs of the exhaust manifold with hot bolt paste;

⁽⁴⁾	For bolt clarification for the GTI only, see -items 5 and 14- in the

⁽⁵⁾	GTI (2008 through 2009) and GTI (from MY 2010)

⁽⁶⁾	GTI (from MY 2010)

Turbocharger Nut Tightening Sequence and Specification

Fig 1: Identifying Turbocharger Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

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

-- First pass, tighten the nuts to 5 Nm.

-- Second pass, tighten the nuts to 12 Nm.

-- Third pass, tighten the nuts to 16 Nm.

-- Final pass, tighten the nuts to 25 Nm.