How long do Acura timing belts last?

Short answer: For most Acura engines that still use a timing belt, replacement is typically recommended at about 90,000–105,000 miles, with some older or specific models calling for around 60,000–70,000 miles. A growing share of Acura engines now use timing chains, which generally last the life of the engine unless wear or failure occurs.

Engines that rely on timing belts require periodic replacement to prevent catastrophic engine damage if the belt fails. The exact interval varies by model year, engine design, and maintenance history. In this article, we break down typical intervals, how to tell if your belt needs service, and what to expect in terms of cost and maintenance, with guidance applicable to current and recent Acura models.

Belts in the Acura lineup: what to expect

Before reading the list, note that exact intervals depend on the specific engine and year. The following items reflect common guidance used by manufacturers and service shops for belt-driven Acura engines.

• Typical replacement interval is 90,000–105,000 miles (about 145,000–170,000 kilometers).


• Because rubber belts degrade with time, many technicians also consider age and recommend replacement around 7–9 years, even if mileage is low.


• Some older or certain engines may require a shorter interval, commonly around 60,000–70,000 miles.


• When replacing the timing belt, shops often replace the water pump, tensioner, seals, and possibly the thermostat, since these parts are accessed during the belt service and share the same drive system.

Bottom line: For most belt-driven Acura engines, plan for replacement within the 90k–105k mile window, while keeping age in mind and verifying the exact interval in your owner’s manual.

Are Acura engines moving away from belts?

Yes. A growing share of recent and current Acura models use timing chains instead of belts. Chains generally last longer and can run for the life of the engine, though they still require maintenance (such as tensioner or guide replacements) if symptoms arise or service intervals dictate. If you’re unsure which system your vehicle uses, check the owner’s manual or ask a dealer for your exact model-year configuration.

How to confirm your engine timing method

To be certain, reference the vehicle’s maintenance schedule in the owner’s manual or consult the dealer with your VIN. The presence of a timing chain or belt is typically listed in the technical specifications for your engine code.

Signs your timing belt may need replacement

Before you reach the replacement interval, look for wear indicators or symptoms that suggest the belt is nearing end of life. The following signs warrant a professional inspection:

• Cracking, fraying, glazing, or missing teeth on the belt surface.


• Engine misfires, rough running, or decreased performance without other clear causes.


• Squealing or chirping noises coming from the front of the engine.


• Oil or coolant leaks that contaminate the belt, or a wet belt showing glazing or softness.


• Visible age-based deterioration (rubber becomes hard and stiff) or belt tensioner/water pump wobble during inspection.

If you notice any of these signs, stop driving the vehicle as soon as it’s safe and have it inspected by a qualified technician to determine whether a belt replacement is necessary.

Costs and maintenance considerations

Costs vary by model, region, and whether a water pump and other components are included. The following points summarize what to expect and how to plan.

• Typical belt-only replacement at a shop often runs roughly $250–$500 for parts and labor, depending on the vehicle and local rates.


• Replacing the timing belt along with the water pump, tensioners, seals, and filters can bring total labor and parts to roughly $500–$1,000 or more, depending on the model and whether OEM parts are used.


• DIY belt replacement is possible for some experienced home mechanics, but it is risky for many Acura engines due to precise timing alignment and the potential for catastrophic engine damage if mis-timed.

Bottom line: Following the manufacturer’s recommended interval and performing accompanying component replacements (like the water pump) at the same time can prevent costly failures and downtime.

Summary

Across the Acura lineup, timing belt life typically centers around a 90,000–105,000 mile replacement window, with age also being a factor. Many newer Acuras rely on timing chains, which generally require less frequent service. Always verify the exact interval for your model year in the owner’s manual or with a dealer, and consider replacing the water pump and related seals when you replace the belt to avoid future labor costs. If you notice signs of belt wear or suspect a developping issue, consult a qualified technician promptly to prevent potential engine damage.

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

The cost to replace your Acura MDX timing belt will vary depending on your MDX's model year, but is often in the neighborhood of $1,100 - $1,700. While a somewhat pricey repair, you luckily don't have to get the timing belt replaced often.

What are signs of a failing timing belt?

Symptoms of a bad timing belt include unusual engine noises like ticking or squealing, engine misfires, poor performance such as rough idling and hesitation, and the check engine light coming on. Other signs can be difficulty starting the engine or oil leaks from the front of the engine. If the belt fails completely, the engine will stop running.
 
Noises

• Ticking or clanking: A ticking or clanking sound coming from the front of the engine can indicate a worn-out belt. 
• Squealing or whirring: A high-pitched squeal, especially when starting the engine or accelerating, can be a sign of a loose or degraded timing belt. 

Engine performance issues

• Misfires: The engine may misfire due to the belt's timing being off. 
• Rough idling: The engine may feel like it's struggling to find a consistent rhythm when idling. 
• Hesitation or jerking: You may feel hesitation or jerking when you accelerate. 
• Loss of power: The vehicle may feel sluggish, and you might experience a noticeable drop in power. 
• Stalling: The engine may stall out, either while driving or while idling. 
• Difficulty starting: The engine may crank but fail to start, or it may not turn over at all. 

Other symptoms

• Check engine light: The check engine light on your dashboard can illuminate to signal various engine timing issues. 
• Oil leaks: Leaks of oil from the front-side of the engine where the belt is located can indicate a problem. 
• Excessive engine vibrations: You might notice more vibration than usual coming from the engine. 

What to do
If you experience any of these symptoms, it is best to have a mechanic inspect your timing belt. Ignoring a failing timing belt can lead to catastrophic engine damage, especially on "interference engines" where the valves and pistons can collide if the belt breaks.

How long does an Acura timing belt last?

seven to ten years
Under normal driving conditions, a timing belt will last for seven to ten years. The replacement process will take between three and six hours to complete, but you'll only have to replace the belt once or twice over the lifetime of your Acura.

Can a Honda timing belt last 150,000 miles?

Replace it on time to avoid engine damage. Rubber ages even if you don't drive much. For many Honda models with timing belts, a practical rule is about 105,000 miles or 7 years, whichever comes first. Some severe-use or hot/cold climates call for shorter intervals; older Honda manuals list time-based limits as well.