BMW forum members who post inappropriate, sexually explicit or pornographic content will be banned from posting on the BMW forums, a company spokesman said Thursday.

The ban comes after several posts about the company’s new X3 sport utility vehicle were removed from BMW forums and several other forums.BMW is offering free lifetime memberships to customers who agree to abide by the new guidelines, spokesman Martin Ebert said.

The company also is requiring its forum members to disclose all material related to the X3 on its website and on social media.