General Information and Safety Warnings
Important: Always observe national guidelines concerning official approval of extensions.
Any alteration or conversion of the tow bar is prohibited and will result in the cancellation of the type approval.
Before installation, remove any insulating compound or underseal from the vehicle's mating surfaces for the tow bar.
The tow bar is designed for towing trailers fitted with ball couplings and for use with load-bearing implements approved for attachment to the tow bar. Any use other than the specified purpose is prohibited.
Parking Assistance Systems: Vehicles equipped with parking assistance systems may experience malfunctions after tow bar installation. This can occur if parts of the tow bar (ball bar, ball coupling) are within the sensors' detection area. In such cases, the detection area should be readjusted, or the parking assistance system deactivated. Malfunctions are not expected when using detachable or pivoted ball bars, provided the ball bar is removed from its operating position.
Subject to alteration.
Technical Specifications
| Specification | Details |
|---|---|
| Tow Bar Type | 321 533 |
| Vehicle Model | VW Passat B6 (3C) |
| Approval Number | e13*94/20*00*1814 |
| D-Value | 11.3 kN |
| Vertical Load (S) | 90 kg |
| Coupling Class | A50-X |
| Towing Capacity | Refer to vehicle registration document. (D-Value calculation formula provided: D = (T x C) / (T + C) x 0.00981, where T = Max. vehicle mass, C = Max. towing mass) |
Included Components
The installation kit typically includes:
- 2x M12x65 (10.9) bolts
- 4x M10x35 (10.9) bolts
- 3x 13x24x2.5 washers
- 4x 10.5x25x3 washers
- 2x M12 (10) bolts
- Kit Part Number: 921 546 650 001
Installation Guide
The following steps outline the installation process. Refer to the diagrams for visual guidance.
Step 1: Vehicle Preparation
Identify the mounting points on the vehicle's chassis, typically at the rear. The part number 3C9.807.251.A is associated with the tow bar assembly.
Step 2: Bumper and Underbody Panel Removal
Carefully remove the rear bumper and any necessary underbody panels or covers to gain access to the chassis mounting points.
Step 3: Mounting the Tow Bar Assembly
Position the main tow bar assembly onto the vehicle's chassis mounting points. Secure the tow bar using the provided hardware:
- Attach the tow bar to the chassis using M10x35 bolts with 10.5x25x3 washers. Torque these bolts to 55 Nm.
- Ensure all mounting points are securely fastened according to the specified torque.
Step 4: Attaching the Ball Hitch
Attach the detachable ball hitch (part 2) to the tow bar receiver (part 1). Use M12x65 bolts with 13x24x2.5 washers. Torque these bolts to 95 Nm.
Step 5: Reassembly
Re-fit all removed underbody panels and covers.
Re-attach the rear bumper, ensuring all clips and fasteners are secured correctly.
Clearance and Usage Guidelines
Ensure that clearance requirements, as specified in Appendix VII, Diagram 30 of Directive 94/20/EC, are met. This includes:
- Minimum ground clearance: min. 32mm, min. 55mm, min. 65mm, min. 75mm, min. 140mm.
- Maximum angles: max. 30° (approach/departure/side), max. 45° (ball hitch).
- Ball hitch length: 350-420mm.
- Clearance from body: max. 100mm.
Weight Ratings:
- Maximum permissible vehicle weight: [Weight value] kg
- Maximum permissible towing weight: [Weight value] kg
- Maximum vertical load on the coupling ball (S): 90 kg
Note: Specific weight limits depend on the vehicle's Gross Vehicle Weight Rating (GVWR).
Declaration of Correct Installation
A declaration is provided by the installer confirming that the tow bar system has been correctly installed according to the manufacturer's specifications and vehicle attachment points. The vehicle user is also informed about the proper usage and maintenance of the tow bar system.
