Notes on installing a trailer hitch - AH31.10-P-1000-02TA
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MODEL 211.2## (except 211.276/277) 1# without CODE 772 (AMG styling package - front spoiler, side skirts and rear apron) without CODE 950 (Sports package - EVOLUTION AMG)
Courtesy of MERCEDES-BENZ USA
Always remind the customer that fuse 18 in the SAM control unit with the rear SAM fuse and relay module (N10/2) should be inserted in its socket only when a trailer is actually connected.
Otherwise an external consumer could discharge the vehicle battery.
Courtesy of MERCEDES-BENZ USA
The cable must be hung in the operating lever before the transport lock between the crossmember and swivel ball neck is removed. Otherwise the system locks and cannot be unlocked. The ball neck snaps into its two end positions and can only be operated using the cable at the release lever.
In export countries always observe the applicable legal requirements and registration regulations when installing a trailer hitch.
The body sealant and underfloor protection must be removed from all the body mounting points of the trailer hitch. The mounting points should then be cleaned with a commercially available cleaning agent. Apply anticorrosion paint to bare-metal areas of the body.
Trailer hitches are homologated safety-related parts. Their installation on the vehicle is to be carried out exclusively by trained, professional technicians. Trailer hitches that suffer damage as a result of accident, ground contact or impact must be replaced; attempts to repair these components by bending or welding them, or any other mechanical forms of repair, are not approved.
The coupling ball must have a diameter of at least 49 mm at all points as measured with calipers.
The ball must be greased before use to reduce wear. 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.
The customer should be asked to read the chapters entitled "trailer hitch" and "Trailer operation" in the vehicle's operating instructions.