Hey guys,

I started my car this morning, and heard a knocking noise from the engine.

It doesn't sound good so i stopped the engine and supposed to go check that at the local dealership.

 

Just curious if someone else has encountered this or know what causing it to happened, so i have a least of idea what's going on so they can't say it is something bigger than what it is.

 

2018 1.0 tsi

 

Thanks

 

 

 

Edited 11 June, 20214 yr by john999boy
Faulty video removed.

sorry the video in the post isn't working, so i am attaching it here again.

coulden't find a way to edit the topic

Take to the dealer immediately - that does not sound good.  However, I would ask you to check the air intake at the top of the engine to make sure that hasn't come loose.

Hello,

 

I have the exactly the same sound since this morning on my seat Ibiza 1.0 TSI, i found no other place on the web relating this problem. What is it ? thank you

Welcome.  Best give some clues.  How old the car, how many miles done.  When last serviced. Is it a 1.0 TSI with or without a GPF? 

Yes for sure:

It is a Seat Ibiza 1.0 TSI 115cv DSG 7 from 02/2018. 64'000kms, last service 02/2022. I don't know for the GPF. 

Since the sound is exactly the same in the video above I think there are great chances the issue is the same.

Symptoms:

-very loud knocking at idle but also present at all rpms (frequency of noise correlated to RPM).
-Motor does not seem to lose power 

-No warning on the dashboard

Sound appeared suddenly when I was riding very smooth this morning.
I ofent ride on mountain roads, pushing the revs, but I always respect the motor (heating/cooling times)

Motor is converted to Ethanol since 02/2022 (ECU flash), I don't know if this could have an impact on the issue.

 

If the issue / noise / behaviour was not present before the service or a changing of the engine managenent then there is a high probability there is the starting point. Discus with who did the work. 

The issue appeared for first time this morning. Nobody touched the car since february.

Go see a mechanic while you have the noise, get any fault codes read.  You know the weather / temperature etc.  Then also the oil level.  Is there enough oil in.  By dipping it not just going by a low oil light.   Oil level cold and high enough. Also as a check needs doin, engine at operating temp. The difference is no much but you want to know both.    The spark plugs need removed and inspected and since out as well to replace with new ones. 

Edited 12 July, 20223 yr by roottoot

So the reason of the noise is a loosen bolt on the pinion of the exhaust camshaft. Actually almost all 5 bolts were loose, but one in particular was about to fall and was hiting the camshaft cover, causing the noise. The mechanic was very surprised to see this on a 4 year's old car! good news is that reparation was easy, just retighten the bolts.

Well saved. 

Hopefully VW Group have a TPI covering this now.

 

I can imagine the old 'We have never heard of this before' if anyone has a failure within or out of the warranty. 

I just found exactly the same problem on 18 plate Kodiaq 1.4. Another of the bolts was coming loose as well. Remarkable.

 

Would thread lock be appropriate here?

 

 

Hi everyone, I'm curious to know what happened afterwards for you.

I discovered the same issue on the my 2018 Skoda Octavia Combi at ~ 86000 kms.
I retightened the screws and went to Skoda for a check. Result was a 1500 euros quote to replace the belt and the Camshaft shifter.
They advised to do it somewhere in the coming months, but did not seem to push for an immediate action. Screws are tight now and the problem is gone.

Did you only tighten the screws ? Did you experience any problems afterwards ? There does not seem to be damage done on any part in the area.

Of course, Skoda does recognise any fault in this problem ...

16 hours ago, ostati said:

Hi everyone, I'm curious to know what happened afterwards for you.

I discovered the same issue on the my 2018 Skoda Octavia Combi at ~ 86000 kms.
I retightened the screws and went to Skoda for a check. Result was a 1500 euros quote to replace the belt and the Camshaft shifter.
They advised to do it somewhere in the coming months, but did not seem to push for an immediate action. Screws are tight now and the problem is gone.

Did you only tighten the screws ? Did you experience any problems afterwards ? There does not seem to be damage done on any part in the area.

Of course, Skoda does recognise any fault in this problem ...

Is your car on its original timing belt or has it been replaced?

 

If it’s been replaced there’s a chance the bolts weren’t replaced and torqued correctly.

 

id be replacing the bolts with new ones with loctite and refitting to the correct torque  

2 hours ago, ApertureS said:

Is your car on its original timing belt or has it been replaced?

 

If it’s been replaced there’s a chance the bolts weren’t replaced and torqued correctly.

 

id be replacing the bolts with new ones with loctite and refitting to the correct torque  

@ApertureS are the cam sprocket bolts disturbed during a belt change?

6 hours ago, Warrior193 said:

@ApertureS are the cam sprocket bolts disturbed during a belt change?

If done correctly, yes.

 

The shafts are locked at the water pump end and the pulleys are allowed to freewheel until after the belt is tensioned 

On 18/10/2023 at 07:04, ApertureS said:

Is your car on its original timing belt or has it been replaced?

 

If it’s been replaced there’s a chance the bolts weren’t replaced and torqued correctly.

 

id be replacing the bolts with new ones with loctite and refitting to the correct torque  

Still on the original timing belt, they checked the torque but i am sure they did not change the screws.

I had the exact same issue with a Skoda Rapid TSI 1.0 from 2018 with only about 42.000 km.

The roadside assistance mechanic tightened the bolt with some Loctite and also tightened the other bolts. He said that he had tightened them more than what the manual prescribes.
In his opinion, it is not necessary to replace the bolts or the timing belt.

He confirmed that it would have been very risky to drive with the loose bolt, it could block causing the timing belt to break.