330d M

[Chelsea boy]

On tick over I can hear a low drumming noise comming from somewhere under the bonnet.
Does anyone have any ideas what this might be.
The radio and CD are off at the time.

[Welshbeef]

Which 3 series model which engine power output is it auto or manual.

Does it happen before it's up to temps or after or all the time.


Have you checked your oil level and coolant level?
When was the coolant and oil last changed?