E 320 Wagon (211.265) V6-3.2L (112.949) (2003)
Advise the customer accordingly.
On trailers with an anti-swerve device it is not necessary to grease the ball (refer to trailer instructions). Advise the customer accordingly.
Advise the customer to read the "Trailer coupling" and "Towing a trailer" sections in the vehicle owner's manual.