Fastener Tightening Specifications

WARNING: This page is about a different car, the 2009 Audi TT and 2008 Audi TT. However, it is still accessible from the selected car via links, so may be relevant.

Component

Bolt Size

A/C Compressor

Bearing Cap

30 + 180° ⁽¹⁾

Coolant Pump

Connecting Rod

30 + 90° ⁽¹⁾

Dual Mass Flywheel

60 +90° ⁽¹⁾

Generator

Idler Roller

Ribbed Belt Pulley for Coolant Pump

Tensioning Device for Ribbed Belt

Vibration Damper

100 + 180° ⁽¹⁾

⁽¹⁾	Always replace

Accessory Assembly Bracket - Tightening Specifications and Tightening Sequence

Fig 1: Identifying Accessory Assembly Bracket Bolts & After-Run Coolant Pump V51 Electrical Harness Connector

Courtesy of AUDI OF AMERICA, LLC

-- Tighten bolts in 2 stages in -1 to 5- sequence as follows:

-- Tighten bolts by hand.-- Tighten the bolts to 23 Nm.

NOTE:

Bolts -1- and -2- are fitting bolts.

Sealing Flange - Tightening Specifications and Tightening Sequence

Fig 2: Identifying Sealing Flange Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Tighten bolts in 3 stages as follows:

-- Install bolts -1 to 11- and tighten by hand.-- Tighten the bolts -1 to 6- diagonally in stages to 10 Nm.-- Tighten bolts -7 to 11- to 10 Nm.

Install Engine Speed (RPM) Sensor -G28- Sensor Wheel

Fig 3: Identifying "VR6" Marking Positioned At Bore Of Bolt That Goes Into Crankshaft Crankpin

Courtesy of AUDI OF AMERICA, LLC

NOTE:

If sensor wheel bolts were loosened, bolts and sensor wheel must be replaced.

-- Clean contact surface between crankshaft and sensor wheel, it must be free of oil and grease.

-- Lightly coat contact surface between crankshaft and sensor wheel with locking compound, locking compound.

Installation position:

The mark "VR6" -2- must be positioned at the bore of bolt -3-, that goes into the crank pin of the crankshaft (the contour of the crankshaft is shown by the dashed line -1-).
The gap -arrow- in the ring gear lies across from the designation.

NOTE:

Ignore the second "VR6" imprint -4-.

-- Tighten sensor wheel bolts in 3 stages as follows:

-- Tighten bolts by hand.

-- Tighten the bolt -3- to 10 Nm and an additional 90° (¹ /₄ turn).

-- Tighten both other bolts to 10 Nm and an additional 90° (¹ /₄ turn).