Dayco Automatic Belt Tensioner for Audi A4 A5 A6 Q5 Volkswagen Amarok Multivan

Dayco No Slack Automatic Belt Tensioner

Designed to maintain constant tension on serpentine belt drives
Serpentine belt drives consist of a single belt that powers most, if not all, of the engine’s accessories.

To maintain the proper tension throughout the drive, an automatic, spring-loaded tensioner is incorporated into the drive system geometry.

Dayco’s Automatic Belt Tensioner features a patented “flat spring” design that’s engineered to provide less operating range variations in tension.

This reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed.

It also lessens the risk of belt squeal and slippage, or poor accessory performance caused by low tension after the belt begins to stretch and wear. A Teflon strip wound within the spring resists abrasion.

The flat spring itself is coated to resist rust.

Other superior design features include a steel locator pin (where the application demands).

A heavy-duty cast aluminium spring case resists cracking and fatigue. The heavy-duty cast aluminium arm offers additional strength and less distortion.

An aluminium retainer ring locks the spring case and arm together, and seals against corrosion.

A steel pivot tube (where the application demands) provides additional strength for critical torque requirements.

A thermoplastic rubber “spring slot plug” keeps out harmful contaminants. The lubricated nylon “pivot tube bushing” and “spring bushing” promote quieter performance.

A rubber “O” ring seals against dust and grime.

The zinc coated mounting bolt resists rust, and is concentric for a more even degree of constant tension.

In order to meet OEM performance standards, Dayco Automatic Tensioners come with either a glass-filled polymer (plastic) or steel pulley, that features a dust cover to protect against contaminants.

Fits the following Make, Model, Series:

Audi > A4 > Apr 2008 - Jun 2012, 1.8L, 4 cyl, 16V, DOHC, TMPFI, Turbo, B8, 118kW, EngCode: CABB

Audi > A4 > Apr 2008 - Jun 2012, 1.8L, 4 cyl, 16V, DOHC, TMPFI, Turbo, B8, 118kW, EngCode: CDHB

Audi > A4 > Apr 2008 - , 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, B8, 132kW, EngCode: CDNB

Audi > A4 > Oct 2008 - Jun 2012, 2.0L, 4 cyl, 16V, DOHC VVT, MPFI, Turbo, B8, 132kW, EngCode: CDNB

Audi > A4 > Oct 2008 - Aug 2013, 2.0L, 4 cyl, 16V, DOHC VVT, MPFI, Turbo, B8, 155kW, EngCode: CDNC

Audi > A5 > May 2009 - Aug 2013, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 8T, 155kW, EngCode: CDNC

Audi > A5 > Aug 2009 - Feb 2012, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 8T, 132kW, EngCode: CDNB

Audi > A5 > Mar 2012 - , 1.8L, 4 cyl, 16V, DOHC, TFSI, Turbo, 8T, 125kW, EngCode: CJEB

Audi > A6 > Oct 2011 - , 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, C7, 132kW, EngCode: CDNB

Audi > Q5 > Mar 2009 - Sep 2012, 2.0L, 4 cyl, 16V, DOHC, TFSI, Turbo, 8R, 155kW, EngCode: CDNC

Audi > Q5 > Oct 2012 - , 2.0L, 4 cyl, 16V, DOHC, MPFI, Turbo, 8R, 165kW, EngCode: CNCD

Volkswagen > Amarok > Feb 2012 - Jan 2015, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 2H TSI300, 118kW, EngCode: CFPA

Volkswagen > Multivan > Sep 2011 - , 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, T5, 150kW, EngCode: CJKA

Volkswagen > Multivan > Dec 2015 - , 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, T6, 150kW, EngCode: CXEB