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      10-29-2020, 05:38 AM   #6
jacbo
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United Kingdom
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Drives: E90 330d LCI
Join Date: Sep 2020
Location: Leicester

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Quote:
Originally Posted by jayapana View Post
I have a similar sounding issue on my 330d. The o-ring for the intercooler pipe going into the intake manifold has split. I will be replacing it in a couple of days so will let you know if that fixes it. Might be something worth looking at.

Very easy to take off and inspect so worth a try before spending big money. Mine is on 130,000 miles.

Cleaning out intake manifold is a shout too as mentioned. Makes a considerable difference and cleaning the throttle while it's off is good too.
Seems to have fixed the issue for me after a quick test drive. Was like a tenner from local dealer. Have a quick check of the intercooler pipes I reckon. At least then you can eliminate it if yours is fine