All Things Mk5 > How to Guides / Troubleshooting

Mk5 gti starting issue

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Beej:
No, no chemical will shift the built up carbon, need to get in there and scrape or have it blasted off with walnut shells or similar media

Clgale1988:
So why would they say it removes all build up in engines

Beej:
There was someone on here before who payed for it to be done, and done before and after dyno's, and I think he also stuck a camera in to see it, and it made no difference what so ever. If you have a look at some of the videos on you tube, and even the ones posted earlier you can clearly see how gummed up and how much effort is required to remove the build up.

Clgale1988:
Yea did see that earlier seems like a right ballache to sort out

r5gtt:
I dont know if it doesn't help the car as per what Beej says but I'm going to give it a shot as I've heard and read good things about de coking but it is a pain to scrape the gunk out as you can see.

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