Thought I could answer the question with a 'google', but the internet is all over the place! It was done at 86,000 miles, I'm now on 113,000, when should it be changed? (2005 Mk2 Focus 1.6 petrol)

The interval does change on the 1.6 as it had such a long production run in different models.  Minimum recommendation is 8 years or 80k though, so you're good for a while yet!!

Also, I assume this is engine history rather than 'car' history as I seem to remember your engine was replaced?  If you PM me your reg, I can check the exact interval on ETIS.

2 minutes ago, TomsFocus said:

The interval does change on the 1.6 as it had such a long production run in different models.  Minimum recommendation is 8 years or 80k though, so you're good for a while yet!!

Also, I assume this is engine history rather than 'car' history as I seem to remember your engine was replaced?

You have a good memory! Yes, this is engine history as the belt was changed when it was put in the car (along with clutch and various other ancillary items)

If you PM me your reg or VIN (not sure NI plates work!) I can check the exact interval on ETIS.

4 minutes ago, TomsFocus said:

If you PM me your reg or VIN (not sure NI plates work!) I can check the exact interval on ETIS.

VIN number sent, not only will NI reg numbers probably not work, but it's a 40 year old 'cherish' plate so could throw up any random car of the last 4 decades!

8 years or 100k.

100k miles or 8 years, If there's no history of it being done, I normally get it done, about £400 for a cambelt kit including water pump even thou my car had only done 70k