• Hey Guest💡👉 We have just launched our new Dealer Directory and review service Find out more now
Not yet on my mk2 cupra but ran the cooling mist kit on my old mk4 golf 1.8T and the inlet valves looked like new before i rebuilt the engine.
 
Last edited:
So this is basically a 'must have' mod for our 2.0tfsi engines, well, if we want them running good for a long time.
 
I can vouch for terraclean. There literally is a driveaway difference and I gained a few miles per gallon. Also try diesel rhino if just wanting additive
 
Last edited:
Didnt look at models, but worked well on my girlfriends petrol fiesta. When you look at how it works its virtually proven scientifically. If it doesn't make much difference then it probably didn't need cleaning that much. Also when people report it being worse after,that's cos it has worked and has cleaned everything and exposed a pre existing fault. For example a leaking injector, that worked fine before as the split had been blocked by all the crud. The crud is then cleared so now the split now leaks and causes issues. Although rubbish to discover better that than not knowing
 
Last edited:
Think it's been identified as pointless fir these cars though

Sent from LG G2 using Tuppytalk
Not pointless just more beneficial for diesels maybe
When we had a demo on the system we ran it on a mk5 golf gti for a half hour and it did begin to soften the crap on the top of the valves but it would've taken a good couple of hours to remove it completely.

Apparently the system uses negatively charged particles that are not effected by air direction which allows them to travel backwards up the intake track in order to clean the manifold, egr etc - how true that is I really don't know.

I do rate terraclean I have to say. On the demo I watched the live data, misfire counters in particular and it reduced a pretty prominent, every second or so misfire into a once a minute occurrence.

Both cars felt smoother and sounded quiter as well!
 
One tub every 3 months probably doesn't make any difference, is it not supposed to be used as a preventative thing rather than treatment
 
Last edited:
Doesn't touch the intake, does it STU3Y, as it just a fuel based additive?

What about seafoam, doesn't that get pulled through one of the intake located vacuum lines? Is this something that a mechanic can do and, if an engine is really gunked up, won't pulling all that carbon into the chambers damage pistons etc?
 
Terraclean and redex etc are only designed to clean the fuel system as you say. Terraclean is supposed to have the added benefit of cleaning the cat etc as the gases escape through the exhaust. My knowledge is very limited and I dont have a tfsi, but for 90 quid its never going to hurt and im pretty certain anyone that tries it will notice a driveaway difference, in smoothness, engine volume, responsiveness, stop start driving and possibly upto 15% fuel economy increase.

With regards to seafoam I dont have any experience of it.
 
Last edited:
At my local TerraClean place they offer up an intake clean as well.
So they do terraclean for the fuel etc, but then also an intake-based one t oclean out the valves, egr, etc.

I'm always a bit weary of the latter, but I've seen what it can do on a petrol.
I ran a can of Wynn's EGR cleaner through my previous MR2 once and the **** it shot out the back was amazing. Car ran about 30% better after that at least. Not placebo, it really did.
 
The egr clean version is only recently released an has been long awaited by many. I believe its supposed to be very good but is obviously more expensive as it involves alpt more labour. My local agent is still awaiting arrival, and I would have been interested but have already removed and cleaned mine now