Hello together, two weeks ago I had three problems in one topic, and no one answered it. So now a new run with only one of the three points: The lock on the driver’s side behaves “locky” – at least in relation to the central locking. I have to open and close several times before it starts and also open the other doors (sometimes richg often: between 10 and 15 times). In any case, it can be felt that the key doesn’t really turn clean. For comparison: There are no problems on the passenger side, and the ZV works perfectly.So what could be defective?Note: Having looked around the internet, I am almost afraid that the cause can be found in the locking cylinder itself. Whether it can be repaired at all or it has to be replaced altogether is the big question …