1997-2003 Alfa Romeo 156 Towing Hitch Installation

This towing hitch is designed according to rules of safety traffic regulations. The towing hitch is a safety component and can be install only by qualified personnel. Any alteration or conversion of the towing hitch is prohibited and would lead to cancellation of design certification. Remove insulating compound and underseal from vehicle (if present) in the area of the matting surfaces of the towing hitch. The vehicle manufacturer’s specifications regarding trailer load and max. vertical cup load are decisive for driving whereat values for the towing hitch cannot be exceeded.

The instruction of the assembly
1. Take out spare wheel.
2. Remove carpet from the floor and cover panels from rear and side wall of the trunk.
3. Fig. 2 shows chassis frame from below the car: holes 1, 2 and 3 make clear, next through this holes drill ř11mm to trunk.
4. Unscrew the nut from the pin (see fig. 2, pos. 4). Pull heat cover, next cut off pin. In place of pin drill hole ř11mm straigh through inside trunk (make very carefully).
5. From inside drill maked holes ř22mm (only in one side).
6. To in this way prepared holes slip distance sleeves L=74mm (pos. 8 - to holes closer rear of car) and sleeves L=80mm (pos. 7) in rest of holes - see fig. 1.
7. Place elements (pos. 4 and 5) in the trunk as shown in the fig. 1, holes (pos. A and B) of this elements must agree with maked holes, put bolts M10x110mm (pos. 10).
− Outline elements (pos. 4 and 5),
− Disassemble above mentioned elements, cut and remove anti corrosion mat fragments,
− Place again elements (pos. 4 and 5), place bolts M10x110mm (pos. 10).
8. Through three holes (invisible on the fig. 1) in bracket (pos. 5) drill holes ř11mm straight through.
9. Through rest four holes in element (pos. 4) drill holes ř9mm straight through.
10. To so prepared elements (pos. 4 and 5) put (from the bottom) the main bar of the towing hitch (pos. 1) and fix as showed on the fig. 1.
11. Fix tow-ball (pos. 2) and socket plate (pos. 3) using bolts M12x75mm (pos. 9) from towing hitch accessories.
12. Tighten all bolts according to the torque shown in the table.
13. Connect electric wires of 7-poles socket according to the instruction of the car. (Recommend to make at authorized service station)
14. Complete paint layer damaged during installation.

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