Hi you can easily find the official email address of Mercedes Benz Head Office just by doing whois search for their official website "mercedes-benz.com" through sites like WhoisXY.com here they will display details like domain registrant name ,address ,phone number and so on using these details you can easily find their head office email id ...I did whois search and found their registrant telephone number it was +49.70319060820 ...I hope it will be helpful to you ...