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Vehicle Specification Lookup Tool🔍
The Audi A8 engines have timing chains and are interference engines.
Scroll down to see detailed timing belt data for your particular model year of the Audi A8.
| Year | Engine | Belt Or Chain | Interference or Non-Interference |
|---|---|---|---|
| 1997-2026 | Listed engines | Timing Chain | Interference |
Note: Replacement intervals are broad recommendations and can be affected by age, weather conditions, running conditions etc. Check with the owner's manual/ manufacturer/ dealership.
Check out the Belt Or Chain specifications for other makes and models.
The 2026 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L V6 Turbo Mild Hybrid | Timing Chain | Interference | Lifetime |
| 4.0L V8 Twin-Turbo Mild Hybrid | Timing Chain | Interference | Lifetime |
The 2025 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L V8 | Timing Chain | Interference | Lifetime |
The 2024 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
The 2023 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
The 2022 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
The 2021 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |

The 2020 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
The 2019 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |

The 2018 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
The 2017 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |

The 2016 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L Diesel | Timing Chain | Interference | Lifetime |
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
| 6.3L | Timing Chain | Interference | Lifetime |
The 2015 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L Diesel | Timing Chain | Interference | Lifetime |
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
| 6.3L | Timing Chain | Interference | Lifetime |
The 2014 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L Diesel | Timing Chain | Interference | Lifetime |
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
| 6.3L | Timing Chain | Interference | Lifetime |
The 2013 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
| 6.3L | Timing Chain | Interference | Lifetime |
The 2012 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.0L | Timing Chain | Interference | Lifetime |
| 4.0L | Timing Chain | Interference | Lifetime |
| 6.3L | Timing Chain | Interference | Lifetime |
The 2011 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 2010 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 2009 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
| 6.0L | Timing Chain | Interference | Lifetime |
The 2008 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
| 6.0L | Timing Chain | Interference | Lifetime |
The 2007 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
| 6.0L | Timing Chain | Interference | Lifetime |
The 2006 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
| 6.0L | Timing Chain | Interference | Lifetime |
The 2005 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
| 6.0L | Timing Chain | Interference | Lifetime |
The 2004 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 2003 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 2002 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 2001 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 2000 Audi A8 has a timing chain and is an interference engine.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 4.2L | Timing Chain | Interference | Lifetime |
The 1999 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.7L | Timing Chain | Interference | Lifetime |
| 4.2L | Timing Chain | Interference | Lifetime |
The 1998 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.7L | Timing Chain | Interference | Lifetime |
| 4.2L | Timing Chain | Interference | Lifetime |
The 1997 Audi A8 engines have timing chains and are interference engines.
| Engine | Belt Or Chain | Interference or Non-Interference | Service Interval |
|---|---|---|---|
| 3.7L | Timing Chain | Interference | Lifetime |
| 4.2L | Timing Chain | Interference | Lifetime |

The primary purpose of the timing belt or timing chain is to maintain the timing (syncronization) between the crankshaft and the camshaft(s).
A timing belt is made of a rubber compound while a timing chain is made of chain similiar to a bicycle chain.
A timing belt wears out over time and must be replaced at the manufacturer's specified interval. Timing belt failure can result in serious engine damage.
Although a timing chain will wear over time it is usually good for the lifetime of the engine but it should be routinely inspected.
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