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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > E90 330D Inlet Manifold Clean - Tips?



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      08-22-2022, 01:11 PM   #1
dragerboy
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E90 330D Inlet Manifold Clean - Tips?

I have a used inlet manifold in the garage that I want to deep clean. I have removed everything off it including the EGR and am going to soak it for 24 hours in a mixture of water and caustic soda.

So should I chuck the metal EGR valve in there too? Also should I be doing a swirl flap delete? I believe my car currently has this but would rather buy another set and get it all ready for a simple bolt on job.

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      08-26-2022, 11:23 AM   #2
dragerboy
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8 hours in 35 litres of water and 500g of caustic soda.
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      08-28-2022, 10:06 AM   #3
dragerboy
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Clean as a whistle now

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      08-28-2022, 07:18 PM   #4
mt10argyll
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Nice job, got to do this to mine shortly, will use the caustic soda too
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      09-02-2022, 05:04 PM   #5
Tambohamilton
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Nice! I bought a new Febi branded manifold for mine as the flaps were leaking
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      09-08-2022, 08:38 AM   #6
dragerboy
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Ordered these off Ebay, more expensive than most but they look decent and the gaskets are made in Germany.

https://www.ebay.co.uk/itm/124445570905
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      09-22-2022, 11:54 AM   #7
dragerboy
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Blanking plugs and gaskets all arrived and fitted.

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Hopefully next week will fit it along with glow plug module and a good clean of the surrounding area.
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