Hey guys,

 

I had my cambelt changed last week at the main dealers. On the way home, I noticed it was running really rough when driving normally ( 4th gear doing 30mph) almost like it was misfiring. I took it back the next day, they told me it wasn't boosting properly so they checked the boost pipes and sensors. I went on my way, same thing happened. They had the car for another week and couldn't find anything wrong with it. I've attached a video of mine holding the revs between 1500 and 2000 rpm. Could someone point me in the right direction?

 

Thanks,

Avi

Same - just had the belt replaced by the dealer two days ago, the car now has a built-in massage chair at certain revs.  "No Fault Found" and "The three cylinders do that".   If the test car or this car had been this bad since new, I'd never have bought it.  It's shaking the car at ~ 1250 in neutral/park or when driving at just under 2K revs, so at 80 - 90 kph the car feels like it had an out-of-balance wheel.  The dealer doesn't give a damn, I'm being forced to take it elsewhere for a look into what they might have borkened. 

Welcome.

Just incase anyone is reading on a phone and can not see, your car is not a 1.2 TSI but a 1.0 TSI. so a 3 cylinder and a 2017.  

Looks like it has 4 cylinders to me (I can see 4 connections to coil packs).  But the engine doesn't look anything like the 1.2 TSI I had a few years ago.

@nbramwelYes indeed, the thread and picture is about a 1.2 TSI 4 cylinder, but @Twizhas a 1.0 TSI 3 cylinder & no photo.

 

1.0TSI Cambelt changes is something that needs even more care than usual to do, (but care and knowledge isalways required)

so all the gear and more than ideas.

 

http://mechanexpert.com/timing-belt-replacement-on-mk7-golf-1-0-tsi

 

Edited 4 September, 20223 yr by roottoot

We did a 1.4 with ACT in a customers Leon last week and on the way home the turbo failed, thankfully the customer did know the turbo was on its way but if he hadn’t known this… try explaining that one to someone (a paying customer) who knows nothing about cars!

Edited 4 September, 20223 yr by Crasher

So far, I've ruled out the main culprits. Fuel is good, air is good and spark is also good. Next week, I'll be taking it down to a friend to have a look at the belt and see if it is out. I saw on YouTube, a fellow TSI owner having the same issue and VW said it was due to the timing being out a few degrees. 

 

@Twiz don't take their word for it, I kept getting told my KN filter was the problem so I reverted back to the standard airbox and the same thing is still happening. The main dealer is useless and I'll never take it back to the scammers again, last year I supposedly had a full service done. I had two out of four spark plugs go a few months after and found out they weren't even changed, all the plugs had corroded and the part where they sit were full of rust too. I changed my cabin filter yesterday and it looked like it hadn't been changed in a few years, there was so much dirt, it's like someone used it as a garden broom.

The car goes in next Wednesday.  I've just not been driving it.  Luckily... I have another car - Rapid with a dodgy DSG which I was also told NFF, so I suspect I'll be getting another opinion on that later.  I've asked for a technical write-up on the Fabia and I'll be going to Skoda Au as well as the dealership management.  It's also running cold (water temps never move past mid/high 70 C range, and again NFF.   REALLY angry about the whole situation.  This is why I used to do all of my own work - but I stupidly sold my '72 240Z with RB20DET, big turbo, plate LSD, big brakes...  Biggest car mistake I ever made.   I really hate being treated like an idiot by the dealership.

"Sorted". Took them a while to find, but the harmonic balancer on the 1.0T can be mounted in more than one position and it wasn't in the correct position.  Damned if I understand how *that* part requires timing, but it did.

@TwizGlad to hear it’s sorted, I had mine done as well but by someone else. I don’t trust them anymore. 
 

When I had my cam belt changed, for some reason they took off my induction kit which was well out of the way and they but it back in a funny angle so it was pinched, restricting the airflow. 

2 hours ago, Twiz said:

Damned if I understand how *that* part requires timing,

 

It absolutely does, it's like saying my wheels are out of balance but surely I can just stick a balance weight on anywhere on the wheel rim!

 

Good for you for having made them sort out the mess they made, I hope that you will be able to stick it to them in other ways.

 

Even with the balance shaft they are bad by comparison to any other engine but without one or worse still with one in the wrong position they would be diabolical

Why oh why do folk still believe this cam belt rubbish???? My mobile mech did the research on this a while back and obtained confirmaton from the belt makers that belts these days are "for life" meaning at least 100k miles then check the condition if you have been doing silly things like forest rallies/whatever. Mine is now almost 8 years old and no sign of deterioration which is as it should be. NB no other maker (Ford, Honda, Nissan,etc.) "advises you to change cam belts at 5 years".

@Eccleshow many miles on your car @ nearly 8 years when the belt was inspected?

 

They as in VW Group could simply extend the time / miles /km that they give as a guide / recommendation / schedule for Timing belt changes.

Maybe now that Euro 6 engines are 7 years old they might do.

Bur then they have not so plenty will take advice they get from the manufacturers, and if they have not had a car from new they do not know about it early years, maybe the first 3 or 5 years.

Edited 29 October, 20223 yr by roottoot