1.0TSI Intake manifold coupling to air filter

[RUM4MO]

Has anyone actually removed their air filter on a 1.0TSI Arona yet, if the spark plugs have been replaced then the air filter will have been removed.

But, if anyone has removed it themselves, did they find that the rubber coupler that is meant to be part of the intake manifold, has come detached from the intake manifold?
There is a large spring clip that fastens this coupler to the air filter housing stub, I did remove that first, but when I lifted the air filter assembly off the car, I discovered that the intake's rubber coupler was still (just) attached to the air filter housing, and now not a fixed part of the intake manifold.

On this car, a local VW Group Indie had removed the air cleaner assembly at the 4 year (26K miles) point to make sure that it was still okay to continue to use! I would have thought that if VW Group recommend a 6 year X,000miles replacement that it would not have been removed at the 4 year and 26K miles service, but there you go.

So, my assumption is, someone that got in before me, just didn't get round to removing the large spring clip, and so just pulled the air filter housing off its mounts and that intake coupler gave way, too late to argue/discuss that now as my daughter or her husband got that 4 year service carried out back in May 2023!

I've advised them to get a new intake manifold fitted ASAP.

 

[RUM4MO]

Well, just to satisfy my immense curiosity, I got a new intake manifold order in along with a new O-ring seal for the stub of the turbo, and this rubber coupler gets mounted to the hard plastic intake manifold using a very strong looking plastic "snap ring" that has maybe 6 or 8 "teeth" that engage over a ring that is part of the intake manifold - so someone, using extreme force and lack of knowledge, has managed to overcome that "snap ring" - or maybe even broken/snapped off some of the gripper teeth/tangs. I've reckoned that it might be possible to get these two parts back together if I made up some sort of protection pieces that would allow me to compress it in my garage vice - but I'd need to see that all the teeth/tangs were still intact first, and that is currently roughly 500 miles from me, so sending this new intake manifold and O-ring seal down to my daughter now makes more sense as they can book the car in complete with all required parts supplied, and it it sorted out - unfortunately, probably by the workshop that messed it up!

 

[rdraheim]

just to add a photo ... really the intake manifold itself ... or the ducting leading to the turbo by the resonators?

 

[RUM4MO]

The official VW Group name for that part is "intake manifold" so that is why I used that name, when the part gets supplied via a VW Group dealership's parts department in UK, it is given the name "pipe".

And that is not a picture of the later 1.0TSI 115PS engine, the turbo is at the other side of the engine, so as is the "intake manifold".

Edit:- the resonator tubes that adorned the earlier TSI engines, have, at least on the later 1.0TSI 115PS, vanished!

So, maybe seeing is believing, looking online and finding some "tech?" stuff, is often getting yourself filled with mis information and confused.

That item that you have highlighted in blue is either the "cold air" tube or the "water drain", again that or these parts have been changed quite a bit, so not relevant to my posting.

 

[rdraheim]

The official VW Group name for that part is "intake manifold" so that is why I used that name, when the part gets supplied via a VW Group dealership's parts department in UK, it is given the name "pipe".

And that is not a picture of the later 1.0TSI 115PS engine, the turbo is at the other side of the engine, so as is the "intake manifold".

Edit:- the resonator tubes that adorned the earlier TSI engines, have, at least on the later 1.0TSI 115PS, vanished!

So, maybe seeing is believing, looking online and finding some "tech?" stuff, is often getting yourself filled with mis information and confused.

That item that you have highlighted in blue is either the "cold air" tube or the "water drain", again that or these parts have been changed quite a bit, so not relevant to my posting.

Hi!

Many thanks for the correction. Please disregard my post, sadly, it seems that I cannot delete it.

 

[rdraheim]

Hilariously, it looks like I have some issues here on my CBZB, just with some oil coating the electronics to the rear of the engine bay on these junctions. You seems to have replied there as well. I'll get a better look when the car is stationary and I have a second. (Simply by cleaning the area and looking to see where the leaking is originating from as the oil misting looks wet/fresh).

1.2 TSI Crankcase Breather PCV Valve - Petrol smell in cabin - UK-POLOS.NET - THE VW Polo Forum

Here,

(yeah, I need to do this before it causes a big issue).

 

[RUM4MO]

I thought that there is a way to delete postings, but, on a public forum, I've always considered that you should never delete a posting unless you have posted a duplicate, ie remove to save wasting space/time.
Once you have posted, you should be willing to accept what ever others post in respect to what you have posted, removing a posting just can save face on your part, but cause confusion if someone else has then posted a reply.
I always hope that people think twice and post once, if I have made a stupid error, I tend to re-post and correct that stupid error - and not just quietly sneak back in and delete or completely revamp my incorrect posting - it is really just standard behaviour for public forum posters in Europe I think.

 

[rdraheim]

Thank you for the forum etiquette.

I found the issue on my CBZB EA111 and I think I remember discovering this a few years ago. I guess this is tangentially related to broken intake components.

No dash lights and seems to be running better than ever, to be honest.

Parts looks to be £5.

 

[RUM4MO]

Yes, a well documented VW Group design error, crazy really when you think about it.

 

[RUM4MO]

I have finally got the original "intake manifold" - the short ducting from the air cleaner down to the turbo inlet, back from my younger daughter as they have finally managed to get a garage to fit the new one - the old one, as I outlined in my opening posting, had been pulled/ripped apart probably during its 2023 service, when that "German car specialist" removed the air cleaner assembly to check the current condition of the air cleaner element.
The garage that they took it to suggested afterwards that they could probably have put it back together and so avoided the need for them(me) buying a new one, anyway, as they are not "car people", I had really just planned for that garage trip to be a "one off" ie in>worked on>out in one day/visit - and not gamble on that intake ducting being able to be re-assembled, I had attempted to quickly re-assemble it while the main plastic ducting was still fixed to the turbo - and failed.
Anyway, with the parts off the car, and no pressure to sort that out within an hour prior to them driving back down to Bromley from Central Scotland, I managed to re-assemble the parts in what looks like to be as it was before it got ripped apart! I can say, that it must have taken quite a bit of force to rip it into 2 parts as I have tried to do that after re-assembling it, and even after using quite a bit of force - I failed to get it back into 2 parts!

I'm just posting this as a final post on this subject and closing off my actions/findings in case someone else discovers this "issue" when replacing their spark plugs or air cleaner element.