MATERIALS
A
1
Cross Bar
C
1
Centre Strut with European facing to 94/20/EC A50-1
Bushes (25mm O.D. – 28mm long)
C1
2
D
4
M10 x 40 Bolts, Lock Washers and Ø40 Large Flat Washers
E
1
Left Hand Side Arm
F
1
Right Hand Side Arm
G
4
M6 Nuts, Washers and Lock Washers
H
4
M10 x 40 Bolts and Ø20 Flat Washers
J
2
M10 x 70 Bolts and Ø20 Flat Washers
K
2
M10 x 30 Bolts, Nuts, Lock Washers and 4 Ø20 Flat Washers
L
1
M8 Nut, Lock Washer and 2 Ø 25Flat Washers
M
2
M6 x 20 Bolts, Nuts and Lock Washers
N
2
M12 x 75 Bolts and Nyloc Nuts
CB
2
M16 x 50 Coupling Bolts, Nuts and Lock Washers
EP
1
Electrical Plate
FITTING
1.
Remove trim panels from inside boot. Remove bumper (rearmost exhaust hanger, 3 nuts on rear panel each
side, 2 small nuts each side, vertical self tapping screws inside rear quarter panels, 2 plastic clips and a vertical
self tapping screw each side at bumper tips). Remove bumper beam. NOTE: Retain for use if towbar is
removed. Remove second exhaust hanger. Remove heat shield. Remove rubber grommets from both chassis
rails. Retain existing fixings for re-fitment of bumper and cross bar.
2.
NOTE: If forward holes are present in chassis rails, these holes may be used instead of drilling for centre
mounts. Or on left hand chassis rail measure forward 121mm from the centre of the rearmost hole for Bolt (D)
and drill hole for forward Bolt (D). On right hand chassis rail measure 132mm from the centre of the rearmost
hole for Bolt (D) and drill hole for forward Bolt (D).
3.
Insert Side Arms (E) and (F) into chassis and loosely attach using Bolts (D). Ensure any mastic is removed and
mating surface is level to allow end plates to be pushed hard against rear panel. Ensure holes (H) and (J) are
aligned, and tighten Bolts (D). Re-fit exhaust heat shield and left hand exhaust hanger.
4.
Attach Cross Bar (A) to bumper using existing Bolts and fasteners (G). NOTE: Ensure centre profile plates are
centralised about centre mark on lower edge of bumper. Tighten Bolts (G).
5.
Re-mount bumper on sliders and small studs on upper edge of bumper and retain with 2 small nuts. Loosely
attach Cross Bar (A), Side Arms (E) and (F) to rear panel using Bolts and existing Nuts (H) and (J). Also attach
Cross Bar (A) to Side Arms (E) and (F) using Bolts (K). Align bumper correctly and tighten bolts.
6.
Attach rearmost exhaust hanger from the bumper beam to stud provided on Cross Bar (A) using Nut and Washers (L).
Attach Centre Strut (C) to Cross Bar (A) using Bolts (N) and Bushes (C1).
7.
Attach Electrical Plate (EP) using Bolts (M). Tighten all bolts. Re-fit all bumper fixings and interior trim.
Note: This towbar must be used with either a Witter Towball (part number Z11) or Class A50-1 or A50-X towball dimensionally
Conforming to A50-1 with a 'D' and 'S' value greater than or equal to that of the towbar.
Please refer to the vehicle specification for the trailer weight and nose limits, which must be observed.
Recommended torque settings: M6 – 11Nm, M8 - 27Nm, M10 - 53 Nm, M12 - 95 Nm , M16 - 214 Nm
Fitting
Instructions
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TOWBAR
For MERECEDES C - CLASS
MR21A
2000-