Tow-Trust Towbars Fitting Guide for Mercedes Sprinter / Volkswagen Crafter
This document provides detailed fitting instructions and a parts list for Tow-Trust towbars, specifically for models TM100B, TM200B, TM200BG, and TM300B, compatible with Mercedes Sprinter and Volkswagen Crafter vehicles.
Product Models
This towbar is available for the following models:
- TM100B
- TM200B
- TM200BG
- TM300B
Designed for Mercedes Sprinter and Volkswagen Crafter vehicles.
Parts List
| Item | Qty | Description | Item | Qty | Description |
|---|---|---|---|---|---|
| A | 1 | Crossmember | F | 2 | M16 x 55 Bolts & Nyloc Nuts |
| B | 2 | Side Arms | G | 8 | M12 x 110 Grade 10.9 Bolts & Nyloc Nuts |
| C | 2 | Chassis Clamp Plate | H | 6 | M12 x 45 Grade 10.9 Bolts, 4 Nyloc Nuts 2 S/P Washers |
| D | 1 | Slider Frame | J | 16 | 12 x 25 Flat Washers |
| E | 2 | Slider Frame Pins and clips | K | 6 | 12 x 30 Flat Washers |
Fitting Instructions
- 5 Tonne Chassis Cab Only: Remove the four existing bolts each side bolting the under run beam to the vehicles chassis members and remove the beam. (No longer required).
- All Models: Locate and clean all Towbar mounting point faces on vehicle, ensure both sides of chassis are clean and free from any under seal.
- Using Item G with Item J loosely bolt Item B to the existing holes in each chassis member with Item C on the outside face. Note: Item C must be fitted with Towbar on MWB and LWB only.
- Using Item H with Item K loosely bolt Item A to Item B.
- Using Item F or Item L bolt the chosen coupling to the mounting plate Item D. (When fitting to 5 tonne vehicles with the 4 bolt coupling (E100TC) please ensure 12 x 30 flat washers supplied with coupling are behind Item D)
- Fully tighten all nuts and bolts and ensure the Towbar is rigid, square, and secure.
- Fit Item D to Item A using Item E. See sketch for orientation of clips.
Notes
- Recommended Torque Setting for M12 Grade 10.9 -139 Nm. (For other Torque Settings see notes overleaf.)
- Nose load limits and vehicle manufacturers trailer / caravan weight limits must be observed.
Diagram Description
The first diagram illustrates the main components of the Tow-Trust towbar assembly. It includes a central crossmember (A), two side arms (B), chassis clamp plates (C), a slider frame (D), and slider frame pins and clips (E). Various fasteners are also depicted: M16 bolts (F), M12 Grade 10.9 bolts (G, H), and flat washers (J, K) in different sizes, indicating the hardware required for installation.
The second diagram presents a detailed exploded view of the towbar installation onto a vehicle chassis. It visually demonstrates how the side arms (B) are attached to the chassis using clamp plates (C) and bolts (G, H). The crossmember (A) is shown connecting to the side arms. The slider frame (D) is depicted attaching to the crossmember (A) via pins (E), which are secured with R clips. The diagram also highlights the specific connection points and hardware for mounting the towbar system.
