E 500 4MATIC Wagon (211.283) V8-5.0L (113.969) (2004)
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.