There is currently a campaign underway in Germany concerning vehicles fitted with the N52 engine. The 2x4 VANOS screws will be replaced by new ones. As there is no online translation, here are the translated texts. You need to enter the full chassis number and you will then see a result.
https://www.bmw.de/de/topics/service-zubehoer/bmw-service/rueckrufe.html
Recall actions relate to the safety or compliance with legal regulations of your vehicle. These actions are free of charge for you. If you have specific questions, please contact your BMW partner.
The safety of our customers and our products is very important to us. For this reason, the BMW Group carries out quality controls on an ongoing basis. You can check below using the 17-digit chassis number whether a recall is currently open for your vehicle.


The same story in France with some positive feedbacks:
http://www.bmwz3club.fr/forum/viewtopic.php?f=143&t=55404
Germany:
https://www-zroadster-com.translate.goog/forum/threads/serienstandsverbesserung-30i.147486/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp
https://www.bmw.de/de/topics/service-zubehoer/bmw-service/rueckrufe.html
Recall actions relate to the safety or compliance with legal regulations of your vehicle. These actions are free of charge for you. If you have specific questions, please contact your BMW partner.
The safety of our customers and our products is very important to us. For this reason, the BMW Group carries out quality controls on an ongoing basis. You can check below using the 17-digit chassis number whether a recall is currently open for your vehicle.


The same story in France with some positive feedbacks:
http://www.bmwz3club.fr/forum/viewtopic.php?f=143&t=55404
Germany:
https://www-zroadster-com.translate.goog/forum/threads/serienstandsverbesserung-30i.147486/?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp


