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      02-13-2013, 05:46 AM   #16
Mitch.
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Drives: 335i
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Quote:
Originally Posted by seanblee View Post
It reads like Terraclean hooks up to the fuel system, so that won't help with this particular problem on a direct injection engine (given the whole cause of the problem is that the fuel goes straight into the cylinder so doesn't wash the back of the valves).
Terraclean also have a system as well as the one featured on Wheeler Dealers specifically for cleaning inlet valves on direct injection engines. http://www.terraclean.net/product.php?id=2

I do not know if it is widely available in the UK yet. Might be worth a try, it will certainly be cheaper.