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      01-08-2013, 05:10 PM   #6
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Jeff@TopGearSolutions's Avatar

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008

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Originally Posted by MSport35TT View Post
Will BMW perform This Valve cleaning? and if so how will they determine that it need to be done?

I am also planning to install AR DP Cat-less this weekend...Will this affect anything?

Also is there a DIY for MAP sensor cleaning? My car has 38K on it now
More then 9/10 BMW does not warranty the valve cleaning but you can try and ask.

Catless downpipes won't have an effect on your idle if that is what you are referring to.

There is no "DIY Guide" to map sensor cleaning, but you simply remove it and clean it with Map sensor cleaner found at local auto parts stores. It's sensitive equipment so dont bend it or touch it, just spray it with the cleaner and re install.
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