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Discussion Starter #1
So I decided to clean out my map sensor due to rough running recently. When I hit the accelerator there was a slight pause before the power kicked in.

This is how the map sensor looks. A thick layer of dirt and I could see inside there was layers of carbon deposits.

What do you guys suggest? Cleaning out the manifold. Cleaning the map sensor with contact spray hasn't made a big impact tbh. Noticed a bit of difference but nothing significant. And I'm sure my car is filthy inside... Wonder how the EGR looks...

Anybody got guides to clean out the n47 engine ? Any additives or sprays that can clean egr/ manifold?

E92 320d N47 2007 Auto - 100k+
 

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Discussion Starter #2
And is this normal for a map sensor to look like this after 100k? Most probably never been cleaned out.
 
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