Campervan conversion problems are easiest to fix before the vehicle is lined, wired and finished. CVC regularly reviews conversions where the physical work is complete but the evidence needed for approval is missing.

1. Changing seats without an approval plan

Additional travel seats, seatbelt anchorages and changes to the original seating layout need careful assessment. Keep drawings, seat and anchorage information, installation records and access for inspection. A bed or lounge seat is not automatically an approved travel seat.

2. Leaving mass until the end

Furniture, water, batteries and equipment all use payload. Check axle loads and the vehicle’s available mass during the design, then obtain the after-modification weight when the build is complete. A compliant-looking fit-out can still have a mass or axle-load problem.

3. Hiding structural work

Document openings, reinforcements, roof changes and any chassis or body work before trim conceals them. Photograph each stage and keep product specifications and installation details. If an engineer cannot see a critical connection later, additional access or evidence may be needed.

4. Missing gas and electrical evidence

In Victoria, VSI 5 sets out requirements for motorhome conversions and for vehicles incorporating gas or mains-style electrical systems. Keep the relevant installer certificates and compliance documents with the vehicle file; do not leave this evidence until the final inspection.

Before you build

Transport Victoria recommends discussing the plan with a VASS signatory before modifying the vehicle. CVC can review the proposed seating, structure, mass and documentation for a Victorian conversion. See our motorhome and campervan compliance service or contact CVC with the vehicle details and proposed changes.

Official guidance: Transport Victoria campervan and motorhome conversions and VSI 5.