Audi S5 Timing Belt or Chain (All Years 2008-2024)

The Audi S5 is a performance sport coupe, cabriolet, and sportback sold in the U.S. market beginning with the 2008 model year. It has been built on two primary platforms, the B8 and B9, each equipped with different engine configurations across their respective production cycles.

Timing systems on the Audi S5 differ between engine families and platform generations. Confirming the correct timing system by engine and model year is necessary before scheduling service, estimating repair costs, or assessing engine failure risk in the event of timing system wear.

Does the Audi S5 Have a Timing Belt or Timing Chain?

All U.S.-market Audi S5 models from 2008 through 2024 use a timing chain, not a timing belt. This applies to the 4.2L V8 FSI and both the supercharged and turbocharged 3.0L V6 TFSI variants. Always verify by engine and model year before scheduling service.

Note: The 2017 model year was not a U.S.-market production year for the Audi S5. The B8 generation ended with the 2016 model year. The B9 generation commenced with the 2018 model year.

2024 Audi S5 Timing Belt Or Timing Chain

The 2024 S5 uses the B9-generation 3.0L V6 TFSI turbocharged engine with a timing chain. No replacement interval is published by Audi. Chain and tensioner longevity depend on consistent use of correct-specification engine oil.

2023 Audi S5 Timing Belt Or Timing Chain

Same timing system as the previous model year. No scheduled chain replacement is listed in Audi’s maintenance documentation. Following Audi-specified oil viscosity and change intervals is the primary factor in long-term chain condition.

2022 Audi S5 Timing Belt Or Timing Chain

Unchanged from prior B9 model years. A rattling noise on cold startup can indicate tensioner wear in the 3.0L TFSI and should be evaluated promptly by a qualified technician.

2021 Audi S5 Timing Belt Or Timing Chain

No changes to the timing system for 2021. Oil quality and viscosity directly influence chain tensioner durability in the EA839-family TFSI. Adhere to Audi’s published service intervals and approved oil specifications.

2020 Audi S5 Timing Belt Or Timing Chain

The 2020 model year introduced the B9 facelift but retained the same 3.0L V6 TFSI engine and timing chain. No changes to the timing system were documented as part of the refresh. Oil maintenance remains the primary service requirement.

2019 Audi S5 Timing Belt Or Timing Chain

Same configuration as the B9 launch year. No timing system changes were introduced for 2019. At higher mileage, tensioner inspection may be warranted based on startup behavior and any stored camshaft timing fault codes.

2018 Audi S5 Timing Belt Or Timing Chain

The 2018 S5 launched the B9 platform in the U.S. market, replacing the supercharged V6 with a turbocharged 3.0L V6 TFSI. Camshaft timing remains chain-driven, and no replacement interval is specified by the manufacturer.

Note: The 2017 model year was not a U.S.-market production year for the Audi S5. No S5 was offered for sale in the U.S. market under a 2017 model year designation. The B8 generation ended with 2016, and the B9 generation began with 2018.

2016 Audi S5 Timing Belt Or Timing Chain

The 2016 S5 is the final B8.5 model year sold in the U.S. market. The supercharged 3.0L V6 TFSI carries no published chain replacement mileage. Consistent oil maintenance is a key service requirement given the age of vehicles at this point in the production cycle.

2015 Audi S5 Timing Belt Or Timing Chain

Same timing system as the following model year. No scheduled replacement is listed in Audi’s published maintenance data for the supercharged 3.0L V6 TFSI chain. Tensioner condition should be evaluated if rattling occurs on cold startup.

2014 Audi S5 Timing Belt Or Timing Chain

Timing configuration for 2014 is unchanged from adjacent B8.5 model years. The supercharged 3.0L V6 TFSI relies on a properly maintained lubrication system for chain tensioner function. Degraded or overdue engine oil accelerates wear on chain components.

2013 Audi S5 Timing Belt Or Timing Chain

The 2013 model year marked the B8.5 refresh, which discontinued the 4.2L V8 in favor of the supercharged 3.0L V6 TFSI. Both engines are chain-driven. No published replacement interval exists for the V6 TFSI chain under normal operation.

2012 Audi S5 Timing Belt Or Timing Chain

The 2012 S5 is the last model year before the B8.5 engine change to the V6 TFSI. The 4.2L FSI uses a timing chain throughout, with no published replacement schedule. Plastic chain guide wear has been reported in high-mileage examples and merits inspection.

2011 Audi S5 Timing Belt Or Timing Chain

Same timing chain as adjacent model years. No published replacement schedule exists for the 4.2L V8 FSI. Plastic chain guides have been known to wear at high mileage and should be inspected during major engine service procedures.

2010 Audi S5 Timing Belt Or Timing Chain

Timing chain specification is unchanged from prior model years. Regular oil changes with Audi-approved engine oil are the primary service requirement for the 4.2L FSI. No scheduled chain replacement is listed in manufacturer service data.

2009 Audi S5 Timing Belt Or Timing Chain

Same as the 2008 launch specification. No timing system modifications were made for the second production year. The 4.2L V8 FSI timing chain requires no scheduled replacement per Audi service documentation under normal operating conditions.

2008 Audi S5 Timing Belt Or Timing Chain

The 2008 S5 is the U.S. market launch year, powered by the naturally aspirated 4.2L V8 FSI. Camshaft timing is managed by a chain system. No scheduled replacement interval is published in Audi’s maintenance documentation for this engine.

Timing Belt vs Timing Chain on the Audi S5

A timing belt is an external rubber-reinforced component that synchronizes crankshaft and camshaft rotation. It operates without lubrication and degrades over time regardless of mileage. Manufacturers specify replacement intervals, typically between 60,000 and 105,000 miles, to prevent failure.

A timing chain performs the same synchronization function using a metal link design within the engine’s lubrication circuit. Chains do not carry a scheduled replacement interval under normal operating conditions. Audi uses timing chains across all U.S.-market S5 engine variants in every production year.

The key maintenance difference is that a belt requires proactive replacement on a set schedule, while a chain does not. However, chain tensioners, guides, and associated components can wear over time, particularly when oil change intervals are neglected or incorrect oil viscosity is used.

Timing chain wear symptoms include a rattling or ticking noise at cold startup that fades as oil pressure builds, camshaft timing fault codes, or rough idle caused by timing deviation. Belt failure typically presents without warning; chain wear usually provides detectable early signs before catastrophic failure occurs.

Audi S5 Timing System Maintenance

The 4.2L V8 FSI and both V6 TFSI variants used in the S5 carry no manufacturer-published timing chain replacement interval. Audi classifies these as lifetime chains under normal operating conditions, with proper engine oil maintenance as the primary ongoing service requirement.

Startup rattle is one of the earliest detectable indicators of timing chain tensioner or guide wear. A brief ticking sound on cold start, particularly in cold temperatures, indicates reduced tensioner spring pressure or chain elongation and should be evaluated by a qualified technician before escalating.

Engine oil quality directly affects chain and tensioner durability on all TFSI and FSI variants used in the S5. Low oil level, degraded oil, or incorrect viscosity reduces hydraulic tensioner pressure. Audi specifies synthetic engine oil meeting VW 502.00 or 504.00 standards for these engine applications.

If diagnostic fault codes related to camshaft timing deviation are stored, or if the engine exhibits rough idle after extended high-mileage operation, a physical inspection of the chain, tensioner, and guides is warranted. Replacement at high mileage may be required regardless of the absence of a published service interval.

Timing Belt vs Timing Chain Comparison

Frequently Asked Questions

Does the Audi S5 have a timing belt or timing chain? All U.S.-market Audi S5 models from 2008 through 2024 use a timing chain. No belt-equipped engine variant was sold in the U.S. market. Verify with engine code before scheduling service.

When should the Audi S5 timing chain be replaced? No scheduled replacement interval is published by Audi for the S5 timing chain. Replacement is indicated when wear symptoms, chain elongation measurements, or stored diagnostic codes show chain or tensioner degradation.

Does the Audi S5 timing chain need regular maintenance? The chain itself has no scheduled replacement. Maintaining correct engine oil level and following Audi’s oil change schedule are the primary actions that protect chain tensioner longevity and overall timing system integrity.

Is the Audi S5 an interference engine? Yes. All U.S.-market S5 engine variants, including the 4.2L V8 FSI and both 3.0L V6 TFSI configurations, are interference engines. Timing system failure can cause direct contact between pistons and valves, resulting in major engine damage.

How much does Audi S5 timing chain replacement cost? Timing chain replacement on the Audi S5 typically ranges from $1,500 to $3,500 depending on model year, engine variant, labor rates, and whether related components such as tensioners, guides, and seals are replaced at the same time.

What are the signs of timing chain wear on the Audi S5? Common indicators include rattling or ticking at cold startup, camshaft position sensor fault codes, rough idle, and engine hesitation. These symptoms should be evaluated by a qualified technician familiar with Audi timing systems.

Conclusion

All U.S.-market S5 models from 2008 through 2024 use a timing chain. The engine transitioned from a 4.2L V8 FSI to a supercharged 3.0L V6 TFSI in 2013, then to a turbocharged 3.0L V6 TFSI starting with the 2018 model year.

No U.S.-market S5 production year used a timing belt. Engine-specific service details may vary by model year and engine code. Always verify timing system details using the owner’s manual or manufacturer service information before scheduling repairs.