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Does Acura RLX have a timing belt or chain?

The Acura RLX uses a timing chain, not a timing belt, to synchronize the engine’s camshafts with the crankshaft. This chain-driven setup is common in Acura/Honda’s modern V6 lineup and is designed for longevity with fewer routine maintenance events.


In this article, we explain what that means for maintenance, reliability, and how it applies across RLX models and years, so you know what to expect when buying or owning an RLX.


Timing chain in the RLX


Key facts about how the RLX's camshaft synchronization is achieved and what that means for ownership.



  • The RLX uses a timing chain to synchronize the crankshaft and the valvetrain, not a timing belt.

  • There is no scheduled timing belt replacement interval in the owner's manual. A chain is designed to last the life of the engine with proper maintenance; however, wear can occur in the chain, tensioners, and guides over time.

  • Maintenance focus is typically on the chain tensioners and guides, as well as general engine health. If you hear unusual rattling or timing-related noises, an inspection is advised.

  • The RLX and its SH-AWD Hybrid variant share the same timing chain configuration for the 3.5-liter V6; there are no belt-change duties unique to the hybrid system.


Concluding takeaway: For the RLX, the timing chain design means fewer routine belt-replacement tasks, but it doesn't eliminate the need for periodic inspection of the chain drive components as part of regular maintenance.


Model-year and variant notes


V6-oriented vs hybrid models


Across the RLX lineup—standard V6 and the SH-AWD Hybrid—the same timing chain approach is used for the internal combustion engine. The hybrid system adds electric motors for enhanced performance, but there are no belt-driven configurations introduced in these models.


In practice, owners should still follow the vehicle’s maintenance schedule for other components (oil changes, fluids, and engine wear items) and consult the dealer if there are concerns about engine noise or wear.


Summary


In short, the Acura RLX relies on a timing chain rather than a belt for its 3.5-liter V6 across standard and hybrid variants. This design reduces the frequency of belt-change maintenance, but regular inspection of chain-drive components remains important to ensure long-term reliability.

Does the Acura RLX have a timing belt or chain?


timing belt
If your Acura has a V6 engine like the Acura MDX or the RLX, it's manufactured with a timing belt that needs to be replaced for maintenance.



Which Acura models have timing chains?


If you own a late model Acura vehicle that has a 4 cylinder engine, then it does not have an Acura timing belt, but instead it utilizes a timing chain. Late model Acura vehicles that use a timing chain include the Acura TSX (4 cylinder models only), the Acura RSX, the Acura ILX, and the Acura RDX.



How much does it cost to replace a timing belt on a Acura RLX?


The cost to replace an Acura RLX timing belt typically ranges from approximately $1,600 to $2,500, but can be lower or higher depending on the shop and year of the car. It's a good idea to get quotes from several independent shops and a dealer to find the best price. 
Cost by service center type

  • Dealer: Expect prices to be on the higher end, often ranging from $1,579 to $2,500 or more, as they use official parts and have highly trained technicians. 
  • Independent Shop: Prices are often lower, typically between $975 and $1,529, but can vary. 
  • YourMechanic: Estimates can range from around $1,650 to over $2,500 for older models. 

Factors that influence cost
  • Labor rates: These can vary significantly between dealerships and independent shops. 
  • Parts: The quality and brand of the timing belt and related components can affect the price. 
  • Additional services: Some shops may include related services like replacing the water pump, tensioners, or spark plugs in their quotes, which will increase the total cost. 

How to get the best price
  • Shop around: Get multiple quotes from both dealerships and independent mechanics in your area. 
  • Ask for itemized estimates: Understand what is included in the price. Make sure you know if parts like the water pump and tensioner are being replaced at the same time. 
  • Consider the value: While it may seem like a large expense, a timing belt replacement is a critical maintenance item. Replacing it can prevent much more expensive engine damage if it fails. 



What is the life expectancy of the Acura RLX?


Acura RLX – A Premium Sedan Built to Last
Many RLX owners report over 200,000 miles with proper care.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.