Originally Posted by M-Sport328i
Issue has returned - Car has been back in shop for last two days to try and eradicate the problem. I have a base model 320d on loan and no issue with that. Sounds like it may be related to the shadowline trim based on posting above. Dealer said last night that they are adjusting the doors so needed to keep it longer. Hopefully will get it back today and have a rundown on what the latest fix is.
Sorry to hear it is back in the dealers hands. Look forward to hearing outcome though. This issue has just struck me. Car only 6 weeks old (1,000kms) and coming from back left passenger side. It is not too loud (yet) but still annoying. Good luck.