Removing control unit for the trailer tow hitch

Preliminary works 

• Remove the luggage compartment floor TRIM PANEL .
• Remove the loading EDGE TRIM .
• Partially remove the right luggage compartment wheel arch TRIM PANEL .

• Unlock and disconnect plug connections (1).
• Unlock the latch mechanisms (2).
• Pull out control unit (3) from the holder.

  Courtesy of BMW OF NORTH AMERICA, INC.