Installation instructions:
1.)
Disassemble the rear bumper and the reinforcement. The bumper reinforcement is no longer required after
installation of the towing device. The bumper reinforcement should, however, be reassembled to the vehicle if the
towing device is disassembled at a later date.
Unscrew the rear silencer attachment from the underside of the chassis beam.
2.)
Corrosion protection on the rear panel is no longer guaranteed on the contact surfaces of the bumper
reinforcement. Seal and protect these surfaces against corrosion.
Use adhesive tape to mark off the areas which are to be treated. Remove any possible oxide and slightly sand and
subsequently clean the surfaces. Now remove the adhesive tape.
Pre-treat the surfaces with a cloth slightly dampened with cleaning agent DX380 from PPG (equivalent agent can
also be used). Now apply the corrosion protection material 30 - 40 μm thick. STANDOX-EP primer-filler from
Dupont or D831 or DP40 from PPG can be used for this task. Subsequently dry the surfaces for approx. 10
minutes with a hairdryer at 80° - 90°.
Always observe the manufacturer's specifications and environmental regulations.
3.)
Insert the struts 3 and 4 from the rear on the left and right-hand side into the chassis beam up to the limit stop.
Attach them loosely to the chassis beam at point "a" using the M10x25 bolts and the 10.5x25x3 washers. Now
loosely attach the struts 3 and 4 to the tail panel at point "b" using the M10 nuts and the 10.5x25x3 washers and at
point "c" using the M10x30 bolts, the 10.5x25x3 washers and the M10 nuts.
4.)
Push the transverse beam 1 onto the ends of the struts 3 and 4. Now loosely attach the transverse beam 1 at point
"d" using the M12x35 bolts and the 12.5x30x3 washers and at point "e" using the M8x25 bolts and the 8.4x30x2
washers.
5.)
Align the towing device and tighten all the nuts and bolts.
Tightening torque for M12
Tightening torque for M10
Tightening torque for M8
6.)
To ensure that no exhaust fumes enter the vehicle interior use the foam parts 17 to seal the holes in the struts 3
and 4. Subsequently use a suitable sealing material to seal the strut plates 3 and 4 along their periphery to the tail
panel (see diagram X).
7.)
Saw the hatched area out of the underside of the bumper in the middle as indicated on the supplied template.
Place and fix the template on the outside of the bumper for this task. The line "Y0" corresponds to the middle of
the vehicle.
8.)
Push the ball bar 2 between the plates at point "f" and attach it using the M12x75 bolts, the 12.5x30x3 washers
and the M12 nuts. The socket holder 5 is also attached here.
Tightening torque for M12
at point "d"
at point "a", "b", "c"
at point "e"
at point "f"
= 65 Nm
= 40 Nm
= 20 Nm
= 95 Nm
Subject to alteration.
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