Had since new, only done 22,000 klms, serviced by Mitsubishi every year, which usually involves oil and filter change, last one had some steering bushes (rubbers?) replaced, but other than that nothing major.

However, I believe the timing belt should be replaced every 100,000 klms or 6 years but the service centre at Mitsubishi has never mentioned this, should it be a cause for concern?

Its probably worth getting it changed for peace of mind

despite the low KM's the belt itself is old if it breaks it will cause catastrophic engine damage

and cost a lot more.

30 minutes ago, giddyup said:

Had since new, only done 22,000 klms, serviced by Mitsubishi every year, which usually involves oil and filter change, last one had some steering bushes (rubbers?) replaced, but other than that nothing major.

However, I believe the timing belt should be replaced every 100,000 klms or 6 years but the service centre at Mitsubishi has never mentioned this, should it be a cause for concern?

You've had 12 years out of it, the mileage is irrelevant, the belts deteriorate with age, if it does go suddenly you'll need a new engine.

1 minute ago, Jeff the Chef said:

You've had 12 years out of it, the mileage is irrelevant, the belts deteriorate with age, if it does go suddenly you'll need a new engine.

Just curious as to why the service centre at Mitsu never mentioned it, especially if it's on a servicing schedule.

A cynic might suppose that the service center /dealership wants a nice big expensive job

or new vehicle sale instead of doing the service scheduled jobs.

6 minutes ago, giddyup said:

Just curious as to why the service centre at Mitsu never mentioned it, especially if it's on a servicing schedule.

No idea why they haven't mentioned it, the only thing I can think of is that they have checked it and it was OK.

I would definitely ask them the question, asap, as I said if it does go the engines toast.

Just now, Jeff the Chef said:

No idea why they haven't mentioned it, the only thing I can think of is that they have checked it and it was OK.

I would definitely ask them the question, asap, as I said if it does go the engines toast.

How would they check it, doesn't that require a fair amount of work just to get to it?

Full Kit (Including Tensioners/Water Pump): If replacing the tensioners and water pump as recommended, costs can exceed ฿7,000+ THB.

versus

• Authorized Service Center (New Engine): A completely new factory 2.4L engine (4N15) can cost around 150,000–200,000+ THB, including labor and smaller parts (gaskets, fluids, etc.).

5 minutes ago, giddyup said:

How would they check it, doesn't that require a fair amount of work just to get to it?

Normally it is a visual check, but unless you go round the whole timing system and check pulleys, water pump, etc.

I'd want an assurance from them it is ok, in writing, or if it goes you'll be left with the bill.

21 minutes ago, Jeff the Chef said:

Normally it is a visual check, but unless you go round the whole timing system and check pulleys, water pump, etc.

I'd want an assurance from them it is ok, in writing, or if it goes you'll be left with the bill.

I could be wrong but I think the amount of labor required to inspect the belt, you'd might as well go ahead on replace it. The belt is cheap, it's the labor that adds up.

3 minutes ago, giddyup said:

I could be wrong but I think the amount of labor required to inspect the belt, you'd might as well go ahead on replace it. The belt is cheap, it's the labor that adds up.

I would expect the visual check would be part of a normal service, but until you ask them directly you'll never know.

I did a 1600 Ford cambelt at the dealers for under 7,000 baht, all in, last year.

First, are you sure it's a belt and not a chain? I think the Mitsu 2.4 has a chain.

Timing belts get no sun and run in a clean environment, I would not be too worried. The last one I changed myself was five years old, 140K miles and it looked like brand new.

How much is it to replace?

If you have a chain, do not worry about it.

If you have a non-interference engine and a belt, do not worry about it.

If you have an interference engine, and a belt, you need to worry.

1 hour ago, Yellowtail said:

If you have a chain, do not worry about it.

If you have a non-interference engine and a belt, do not worry about it.

If you have an interference engine, and a belt, you need to worry.

The 2014 model, which I have has a belt, the 2015 had a chain.

22 minutes ago, giddyup said:

The 2014 model, which I have has a belt, the 2015 had a chain.

What model engine do you have? It looks like the 2.5 l 4D56 is an interference engine, and as such would suffer damage in the event the belt failed. keep it

Find out what it will cost to have them swap it out.

If it's been good to you otherwise, and you want to keep it, and it's not crazy expensive, bite the bullet and spend the money.