Suzuki Grand Vitara 1.6 56 plate has it it chain or timing belt

That engine is a 4 cylinder and they all have belts.

see the slide show. yet.
http://www.fixkick.com/engine/20Liter/html/index.html

https://suzukipitstopplus.com/Category/3-suzuki-service-manuals.aspx

valve ? chain timing, or the spark.?
here is chain.
http://www.fixkick.com/look/v6/6v-chain-marks.jpg

what engine, there are many. what country ,same.
some have a chain. no belt.
the belt change is complex,
login to alldata , its all there. or mitchells.
or go to pub. lib and see esources , under car repair
free factory service manuals there on that screen there.
i can log in to my lib and see them now. can you?
you need only library card...

alldata dot com has a that , as does mitchels and chilton online.
http://www.fixkick.com/look/v6/6v-chain-marks.jpg

I do not think the Vitara came out with 1.5l motor, if you have the V6 motor it is a chain driven motor and they are known to be on the noisy side which according to Suzuki is normal until it gets very noisy!!!

99 Grand Vitara 3.5 liter is a timing chain.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

there is no timing belt its a chain. replace the belts when they start to crack

My sincere apologies for the severly delayed response.
I am personally going back to answer your unanswered questions. I have only been on this site for the past 4-months as a free contributor.

I do not know if you still need this information, however I am answering it in case you still do.

Standard Answer for Timing Belts/Chains: 100,000 to 120,000 miles is when the Timing Belts/Chains start malfunctioning or failing. Some people want to go ahead and change them before malfunctions/failures happen. I just replaced mine on 2002 Dodge Grand Caravan which just turned 100K. Most Timing Belt/Chain failures will cause more costly engine damage when these fail, including a need to replace/rebuild an entire engine.

Again my apologies...
Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!