Service Action – Volvo V50, Callback???

Hello together I received yesterday a letter from volvo automobile Switzerland that my little one has to go to the workshop. Here is the letter:Service-Aktion – Volvo V50, Chassis-Nr. xxxx Dear Mr. xyz We hope that you have come forward with the quality brand Volvo safely, carelessly and with much pleasure so far. Satisfaction and safety is of the highest priority at Volvo. Volvo Car Corporation has found that for various vehicles of the model years 2006-2007 one or more Please make an appointment with your Volvo representative or a Volvo representative in your area so that the necessary changes can be made. Of course, this work is free of charge for you. If you have any questions, your Volvo representative will be happy to provide you with information. We apologize for any inconvenience that this might cause. However, we are convinced that our continuous work will be carried out in the future. monitoring the quality and safety of our products is also in your interest. With kind greetings Volvo Automobile (Switzerland) AG someone knows what is behind this recall campaign? gruss andy