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Model specific boards => Golf mk4 => Topic started by: mar_k on 05 August 2012, 21:15

Title: K03 and k03s indentification marks
Post by: mar_k on 05 August 2012, 21:15
When looking at the plate on the turbo I couldnt see any clear markings to show weather it was
either of the above.

Where would it be and how would it have been stamped?

Title: Re: K03 and k03s indentification marks
Post by: richw911 on 05 August 2012, 21:20
http://www.golfgtiforum.co.uk/index.php?topic=93942.0

"KO3s turbo numbers:

KO3-052, 053,058 or (K03/82 from a Polo GTI) For k03s

If you look into the inlet, the ko3 has 12 fins, the ko3s has 8."
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 05 August 2012, 21:25
Cheers rich, So do all K03s turbos look the same with that larger bit at the top?
Title: Re: K03 and k03s indentification marks
Post by: richw911 on 05 August 2012, 21:32
Cheers rich, So do all K03s turbos look the same with that larger bit at the top?

No that is a silencer which were fitted to AUQ engines IIRC, AUM and others look the same as k03 - its the fins you want to check out  :smiley:
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 05 August 2012, 21:35
Was getting worried, My mates is AUM and is the same as the bottom one,
Pretty certain there is 8 fins, certainly dont recall the fins being as close together as the K03 pic.

I am a little concernd about the way the car has been treated in the past, There wasnt even a gasket between the wastegate and manifold
Title: Re: K03 and k03s indentification marks
Post by: jamie1989 on 05 August 2012, 21:47
There shudnt be a gasket there lol

Dont you mean the manifold to turbo?
Or block to manifold?
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 05 August 2012, 22:01
There shudnt be a gasket there lol

Dont you mean the manifold to turbo?
Or block to manifold?






Turbo to manifold, However imo its not really the turbo is it? Its the exhaust housing
Title: Re: K03 and k03s indentification marks
Post by: golfyste on 06 August 2012, 06:48
You mean the turbo where the wastegate is located to manifold?

As that is the hotside of the turbo
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 06 August 2012, 10:20
You mean the turbo where the wastegate is located to manifold?

As that is the hotside of the turbo




yes, there wasnt a gasket there at all
Title: Re: K03 and k03s indentification marks
Post by: Wazzzer on 06 August 2012, 10:25
there should only be a gasket on the turbo to manifold join and the exhaust housing to downpipe join
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 06 August 2012, 10:39
there should only be a gasket on the turbo to manifold join and the exhaust housing to downpipe join




The downpipe one was there but not turbo to manifold.

triangle shaped with 3 holes
Title: Re: K03 and k03s indentification marks
Post by: golfyste on 06 August 2012, 10:43
Hmmm you mentioned being concerned about how it has been treat.
What else is making you worried?

Tbh not replacing the gasket is just daft and bone idle would make sure you give ths rest of the caeca good check over
Title: Re: K03 and k03s indentification marks
Post by: jamie1989 on 06 August 2012, 10:49
I bet it was blowing a little.
I agree its bone idle now to replace it I know from expierence its a potch to get that gasket lined up but I cheated and used a little silicone sealant lol

I wouldnt be worried about the engine if it sounds good an pulls well the 1.8t's are pretty much bullet proof aslong as the oil changes have been regular an serviced well.
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 06 August 2012, 10:51
We have fitted a gasket now,
The previous owner had lied about a few things, like having a new clutch fitted.
Its my mates fault as he didnt check through the paper work properly.

There were a few badly repaired things on the car which have now been sorted.
Its actualy a really nice car but seems to have been neglected abit.
There was also a cheap cone filter on there which had gone rusty on the top and bottom metal parts.
Now replaced for a standard airbox, just waiting for the piper x panel filter to turn up


One good thing though, The intercooler is a forge smic. Not sure what its good for but its deffinately bigger than the standard one
Title: Re: K03 and k03s indentification marks
Post by: mar_k on 06 August 2012, 10:54
Jamie, when he 1st brought it round to me I told him there was a blow somewhere as I could hear it.

At least its done now, Yes it was abit of a pain but since we had the turbo off to sort out the studs for the downpipe it was no bother.