The major difference was / is the 1.6 TDI CR and that belt snapping / chain tensioner failing.

 

As far as we are with Euro 6 on 1.5 TSI ACT,s there is no common failures.    Some are from people without a clue doing a cam belt change at what seems like a cheap price.

Same with 1.0 TSI,s to a lesser extent.

 

 

Edited 5 June, 20241 yr by Ootohere

so in my Karoq 2019. is engine DPCA 1.5 TSI 110 kW ACT, MT, i dont need replace timing belt and tensioner soon?

what about small toothed belt that is on water pump on other side of engine? it needs changing, or when waterpump or thermostat (two systems are togther in one piece as a part) fails then to replace both?

 

2 hours ago, imart143 said:

so in my Karoq 2019. is engine DPCA 1.5 TSI 110 kW ACT, MT, i dont need replace timing belt and tensioner soon?

what about small toothed belt that is on water pump on other side of engine? it needs changing, or when waterpump or thermostat (two systems are togther in one piece as a part) fails then to replace both?

The advice re timing belt is much longer than 5 years, so no you do not need to replace the timing belt unless you have done over 100,000km.

 

Water pump changing on the 1.4/1.5 engines doesn't have a schedule, just replace when faulty or the belt is sowing signs of wear when visually inspected.

?

Where does 100,000 km / 62,000 miles come into it from?

 

 

Edited 26 October, 20241 yr by Ootohere

i am asking myself too because i found few different options on manuals and dealers..

so now is 15 yrs. logically, on TDI is 210000 km or 10 yrs, a long ago, why should VW will make less quality systems for gasoline engines that needs to replace twice often...

We are not talking TDI though.    TDI Cam Belt and Water pump different.  

And that change from VW Group for the UK was being more inline with other Dust Free Countries / Regions.  It was long overdue after dealers taking the p!th with customers.

 

Truth of the matter,  Skoda / VW Group Dealers had 50,000 mile plus used cars for sale without the Cam Belt changed, and more and more customers not paying £900,£1,200 quid, 

just trading cars in. 

Yes totally agree, purchased a 1.4tsi dsg 17plate...70 on clock, phoned 2 main dealers both stated 120000 min miles...... Got 1yr warranty left and actually thinking of trading it in

5 hours ago, Ootohere said:

We are not talking TDI though.    TDI Cam Belt and Water pump different.  

And that change from VW Group for the UK was being more inline with other Dust Free Countries / Regions.  It was long overdue after dealers taking the p!th with customers.

 

Truth of the matter,  Skoda / VW Group Dealers had 50,000 mile plus used cars for sale without the Cam Belt changed, and more and more customers not paying £900,£1,200 quid, 

just trading cars in. 

What is different between toothed belt on diesel engine and petrol one? My brother is car mechanic. All brands had that long interval. We didnt see broken belt or blocked tensioner 20 yrs or more. Only water pump which is on side of distribution, driven ba crankshaft and same toothed belt had failed earlier. It is often on many cars. Rarely on Japan cars, or korean.

Betwee  diesel and gasoline car?

 

No difference, same stuff. Made of same composite material. Same measurement. In past belts were thinnier. Now are much stronger.

 

Think Conti for 1.5 tsi act is even reinforced. And is double in dimendions, stronger than belts were in 1990 and 2000- yrs.

My fiat punto gasoline car had belt dimensions like 1.5 tsi belt for water pump.

Stress and working condition on diesel are more intence. 15 yrs ago for tdi was interval 5 yrs or 100000 kms but last 10 years is 10 yrs and 210000 kms. VAG had no make gasoline car engine since 20 yrs and it were N/A.

Logically, timing belt from same company, same engine maker can be made with same technique, same quality, maybe even more.

 

Conclusion that no belt change on 50000 kms had to be done, not even 5 yrs. 

In beginning it has to be same as on tdi, double. At least 150000 kms or 8 yrs  old. ..

 

That what you see 50 miles 5 yrs cars for sale it is because companies have 5 yrs leasing deal and they return car to leasing group. That way i bought mine, but not for that little mone, but as it have price on market  + taxes in my country:

 

Above 20000€

 

https://www.autoscout24.com/lst/skoda/karoq/bc_grey?atype=C&cy=D%2CA%2CB%2CE%2CF%2CI%2CL%2CNL&damaged_listing=exclude&desc=0&eq=53&fregfrom=2019&fregto=2020&fuel=B&gear=M&powerfrom=103&powertype=hp&search_id=4eblosxp8u&sort=standard&source=detailsearch&ustate=A%2CN%2CU

 

Not 5 year leases in the UK, 3 year so within manufacturers warranty and returned and Used Approved cars, Full Main Dealer Service History.

Often not Serviced to the Manufacturers Guidelines, recommendation or Schedule by 4 or 5 years.

 

Plenty 1.6 TDI cam belt failures, or actually tensioner failures, same outcome. 

Yeah sometimes it fails but i was seen engines with 250000 kms without belt or timing tensioners failure.

VAG was sure that stretching belt over time maybe 1-3% will impact to ACT system. Because timing for this belt is specific, tolerance between shaft is about 2%?

But there is obviously not impact. Not serious. So they agreed to prolongue timing change interval to lifetime, same like on tdi, so you drive it till something else fails and you need to get belt off, camshaft or crankshaft seals, or have issues with ACT system, otherwise no action needed..

Edited 26 October, 20241 yr by imart143

35 minutes ago, Ootohere said:

Not 5 year leases in the UK, 3 year so within manufacturers warranty and returned and Used Approved cars, Full Main Dealer Service History.

Often not Serviced to the Manufacturers Guidelines, recommendation or Schedule by 4 or 5 years.

 

Plenty 1.6 TDI cam belt failures, or actually tensioner failures, same outcome. 

Where to download that manual? I didnt get it with car. Thanks.

18 hours ago, imart143 said:

Yeah sometimes it fails but i was seen engines with 250000 kms without belt or timing tensioners failure.

VAG was sure that stretching belt over time maybe 1-3% will impact to ACT system. Because timing for this belt is specific, tolerance between shaft is about 2%?

But there is obviously not impact. Not serious. So they agreed to prolongue timing change interval to lifetime, same like on tdi, so you drive it till something else fails and you need to get belt off, camshaft or crankshaft seals, or have issues with ACT system, otherwise no action needed..

Wish I’d known that before I paid £995 in April to get it done at 118k

VAG didnt know kow it will work either.

Owners are test drivers, last 10 yrs.

Any updates on this matter ?

I emailed skoda asking for their recommended age/mileage for timing belt change, they've left a message on my voicemail stating there is no stipulation on age or mileage for a timing belt change on my vehicle.

Doesn't really help and not entirely sure how to interpret that

Just received he following email

Edited 21 May, 20251 yr by Brian15

57 minutes ago, Brian15 said:

Doesn't really help and not entirely sure how to interpret that

It should be interpreted that they are looking at a table similar to the one that Ootohere posted a little further up this page, and they are looking at replacement interval for toothed belt on a petrol engine in a non-dusty country and seeing a - (like there is in that table for Karoq), which means there is no recommendation for replacement.

3 hours ago, Breezy_Pete said:

It should be interpreted that they are looking at a table similar to the one that Ootohere posted a little further up this page, and they are looking at replacement interval for toothed belt on a petrol engine in a non-dusty country and seeing a - (like there is in that table for Karoq), which means there is no recommendation for replacement.

So does that mean they don't know or it should last as long asvthe car ?

It means there is no replacement interval defined by Skoda.

Unless you live in a dust rich environment.

Not too sure why that makes s difference, since the belt is fully enclosed.

This subject crops up alot on here, Nobody knows the ideal solution, are the parts made better to last no idea,

120000miles seems abit excessive to me. If it snaps on you then what............

It's not that the parts are being made better it's that Skoda UK were out of step with the rest of the VAG empire when they were saying 5 years.

It seems they were forced to get back in line when the cambelt replacement costs on the ACT versions were so much higher than the non-ACT versions.

12 hours ago, Breezy_Pete said:

12 hours ago, Breezy_Pete said:

It means there is no replacement interval defined by Skoda.

Unless you live in a dust rich environment.

Not too sure why that makes s difference, since the belt is fully enclosed.

3 hours ago, pwee said:

This subject crops up alot on here, Nobody knows the ideal solution, are the parts made better to last no idea,

120000miles seems abit excessive to me. If it snaps on you then what............

I just find it odd they can't give an answer , surely they've been tested by skoda and have a rough idea of when they're likely to need replacing, I'm on 97k at the min and unsure what to do for the best and when

Think of another component like manual gearbox oil, a fuel pump, or a petrol fuel filter and you'll find the same absence from any service schedule.

They've just taken it a step further and washed their hands of advising on cambelts on these petrol models in some markets.

2 hours ago, Brian15 said:

I just find it odd they can't give an answer , surely they've been tested by Skoda and have a rough idea of when they're likely to need replacing,

There isn't a "one size fits all" answer as it depends on driving style, environment, etc. Which is why VAG as a whole advise a time/mileage after which it should be regularly inspected.

Just to add to the confusion I've had the following email today ,I got back in touch with them yesterday as I'd had no reply after a week waiting , so it would appear the same question has been answered twice by different people