Fastener Tightening Specifications

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2015 Audi TT Quattro, 2014 Audi TT Quattro, 2013 Audi TT, 2012 Audi TT, and 2011 Audi TT. However, it is still accessible from the selected car via links, so may be relevant.

Component

Bolt Size

Air Guide Pipe to Bracket

Bracket for Turbocharger ⁽⁵⁾

Charge Air Pipe

Charge Air Pressure Sensor

Connection

Coolant Return Line ⁽³⁾

Coolant Supply Line ⁽²⁾

Fastening Strip, Nut ⁽⁴⁾⁽⁵⁾

Mount for Charge Air Cooler

Oil Supply Line ⁽¹⁾

⁽⁵⁾

Oil Return Line

Right Air Guide Pipe to the Oil Pan

Turbocharger Vacuum Diaphragm

Bolt

Nut ⁽⁶⁾

Turbocharger Recirculating Valve

Wastegate Bypass Regulator Valve

⁽¹⁾	For bolt tightening clarification, refer to Part II Figure and see items -2, 5 and 6-

⁽²⁾	For bolt tightening clarification, refer to Part II Figure and see items -8, 9 and 10-

⁽³⁾	For bolt tightening clarification, refer to Part III Figure and see items -3 and 6-

⁽⁴⁾	Always replace

⁽⁵⁾	Coat the bolt with hot bolt paste

⁽⁶⁾	Secure with sealing wax

Turbocharger - Tightening Sequence

Fig 1: Identifying Turbocharger Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts -1 through 5- in 4 stages as follows:

-- 1. Tighten the bolts to 5 Nm.

-- 2. Tighten the bolts to 12 Nm.

-- 3. Tighten the bolts to 16 Nm.

-- 4. Tighten the bolts to 25 Nm.