When Should I Replace the Timing Belt on Acura MDX?
Replace the timing belt on your 2025 Acura MDX between 60,000 and 90,000 miles or every 7 to 10 years, whichever comes first. Check your owner's manual for the exact schedule. This belt keeps your V6 engine's valves and pistons in sync. A break causes major engine damage.
Job costs run from $1,000 to $2,000 at a dealer. This covers labor, parts, and often the water pump. Hot climates like Arizona wear belts faster. Inspect belts every year in those areas.
Maintenance Schedule Highlights
Your MDX uses a Maintenance Minder system. It tracks your driving and alerts you to service. Follow these key intervals:
| Interval | Tasks |
|---|---|
| Every 7,500 miles | Oil change, tire rotation, basic checks. |
| 60,000 miles | Timing belt if due, spark plugs, all fluids. |
| 90,000 miles | Inspect or replace belt, air filter, brake fluid flush. |
Plan service every year or at 7,500 miles in hot weather.
Signs You Need Replacement Now
Watch for these problems and act fast:
- Ticking noise from the engine.
- Engine misfires or hard starts.
- Check engine light on.
- Oil leaks or exhaust smoke.
- RPM fluctuations at idle.
Stop driving if you see them. A snapped belt ruins your engine. Get a pro inspection right away.
Steps to Stay on Track
Follow these steps to avoid issues:
- Read your owner's manual today. Note the mileage and time interval.
- Track miles with an app. Sidekick tracks all ownership costs like maintenance.
- Book service at an Acura dealer. They use factory parts.
- Replace extra parts during the job: water pump, tensioner, seals. This saves money later.
- Test drive after service. Check for smooth idle and strong power.
Dealers finish the job in 3 to 5 hours. They remove covers, check parts, and install the new belt. Inspect belts often in hot weather, even at low miles.
Sidekick helps you plan these costs. It shows upcoming bills and local shops.
Stay on schedule. Right timing saves thousands on repairs. Your MDX runs best with regular care.

