Dayco Automatic Belt Tensioner Audi S3 TT TTS Seat Altea VW EOS Golf Jetta

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 > S3 > 2007 - 2008, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 8P, 194kW, EngCode: BHZ

Audi > S3 > May 2007 - Mar 2011, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 8P, 188kW, EngCode: BZC

Audi > S3 > Aug 2008 - Aug 2013, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 8P, 188kW, EngCode: CDLC

Audi > TT > Nov 2006 - Oct 2010, 2.0L, 4 cyl, 16V, DOHC, TFSI, Turbo, 8J, 147kW, EngCode: BWA

Audi > TTS > Jul 2008 - Jan 2015, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 8J, 200kW, EngCode: CDLB

Seat > Altea > 2006 - , 2.0L, 4 cyl, 16V, SOHC, TFSI, Turbo, 5P, 147kW, EngCode: BWA

Volkswagen > EOS > Mar 2007 - Jul 2008, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 1F, 147kW, EngCode: BWA

Volkswagen > Golf > 2005 - Sep 2009, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, Type 5, 1K, 147kW, EngCode: BWA

Volkswagen > Golf > May 2005 - Jul 2007, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, Type 5, 1K, 147kW, EngCode: AXX

Volkswagen > Golf > Oct 2008 - Sep 2009, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Type 5, 1K, GTi, 169kW, EngCode: BYD

Volkswagen > Golf > Jun 2010 - Aug 2013, 2.0L, 4 cyl, 16V, DOHC VVT, TMPFI, Turbo, Type 6, 1K, R, 188kW, EngCode: CDLC

Volkswagen > Golf > Sep 2011 - Jul 2012, 2.0L, 4 cyl, 16V, DOHC VVT, Di, Turbo, TYPE 6, 173Kw, EngCode: CDLG

Volkswagen > Jetta > Feb 2006 - Oct 2009, 2.0L, 4 cyl, 16V, DOHC, Direct Inj, Turbo, 1K, 147kW, EngCode: BWA

Volkswagen > Jetta > Nov 2009 - Jul 2011, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 1K, 147kW, EngCode: CAWB

Volkswagen > Passat > Mar 2006 - Jul 2008, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 3C, 147kW, EngCode: AXX

Volkswagen > Passat > Mar 2006 - May 2009, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 147kW, EngCode: BWA

Volkswagen > Passat > Aug 2008 - Jan 2010, 2.0L, 4 cyl, 16V, DOHC, Di, Turbo, 3C B6, 147kW, EngCode: CAWB

Volkswagen > Scirocco > Nov 2009 - Aug 2017, 2.0L, 4 cyl, 16V, DOHC, TMPFI, Turbo, 1S, R, 188kW, EngCode: CDLC