GDW Tow Bar Installation Guide
Opel Mokka (2010-2012) & Chevrolet Trax (2013 onwards)
This document provides installation instructions and important information for GDW tow bars fitted to the Opel Mokka (models from 10/2012) and Chevrolet Trax (models from 2013).
Reference Number: 1954
General Recommendations and Information
Before commencing installation, ensure the tow bar has not been damaged during transport and that it is the correct reference for the vehicle. Read and follow all fitting instructions precisely.
Fitting
- Present the tow bar under the vehicle to check alignment before drilling.
- If drilling is required, ensure no wires or brake lines are damaged. Remove any soundproofing or bitumen material from drilled areas.
- Treat drilled holes and bodywork with an anti-corrosive product.
- If the vehicle has non-standard bumpers (special series, sport versions, tuning parts), consult GDW technical service to confirm compatibility.
- The towbar is supplied assembled for storage; disassemble parts before fitting.
Guarantee and Use
- To determine the maximum towing weight for your vehicle, refer to the Certificate of Conformity (COC) or contact your dealer. Do not exceed the tow bar's specifications.
- Check the tow bar after the first 1,000 km of use and at least annually thereafter.
- Check all bolts and retighten if necessary.
- Repair any paint damage.
- Replace any components damaged in an accident or collision.
- Grease the internal parts of detachable tow bar systems.
- If the towing ball obstructs the license plate or fog light, it must be removed when not in use.
Technical Specifications and Torque Values
Refer to the Certificate of Conformity (COC) for your vehicle to verify the maximum trailer weight.
Torque Specifications (Nm):
| Bolt Size | Class 8.8 | Class 10.9 | Class 12.9 |
|---|---|---|---|
| M6 | 11.3 | 16.5 | 19.3 |
| M8 | 27.3 | 40.1 | 46.9 |
| M10 | 54.0 | 79.0 | 93.0 |
| M12 | 97.0 | 143.0 | 167.0 |
| M14 | 159.0 | 234.0 | 274.0 |
| M16 | 230.0 | 338.0 | 395.0 |
Tools Required: Socket wrenches (8, 15, 17, 19), TX20, PH2.
Installation Steps (Opel Mokka)
Step 1-3: Accessing and removing rear light clusters.
Step 4-8: Removing bumper components and preparing for tow bar installation.
Step 9-12: Detaching and removing the bumper.
Step 13-14: Attaching mounting brackets to the vehicle chassis.
Step 15-16: Positioning and securing the main tow bar structure.
Step 17-18: Attaching the tow ball and socket holder.
Step 19: For Chevrolet Trax, the socket holder is mounted at a 30° angle.
Step 20: Opel Mokka bumper modification details (dimensions: 90mm x 60mm cut-out).
Step 21-22: Chevrolet Trax bumper modification details for types T45 and T36, including specific cut-out dimensions and radii.
Step 23-24: Final assembly and attachment of the tow ball assembly.
Installation Steps (Chevrolet Trax)
Step 1-2: Accessing and removing rear light clusters.
Step 3-6: Removing bumper components and preparing for tow bar installation.
Step 7-8: Detaching and removing the bumper.
Step 9-10: Attaching mounting brackets to the vehicle chassis.
Step 11-12: Positioning and securing the main tow bar structure.
Step 13-14: Attaching the tow ball and socket holder.
Step 15-16: Final assembly and attachment of the tow ball assembly.
Step 17-18: Attaching the tow ball and socket holder.
Step 19: The socket holder of Chevrolet Trax is mounted at 30°.
Step 20: Opel Mokka bumper modification details (dimensions: 90mm x 60mm cut-out).
Step 21-22: Chevrolet Trax bumper modification details for types T45 and T36, including specific cut-out dimensions and radii.
Step 23-24: Final assembly and attachment of the tow ball assembly.
Clearance Requirements
Ensure that the clearance complies with Appendix VII, diagram 25 (a,b) of regulation no. 55.
Diagrams illustrate required clearances for vehicle laden weight.
