Where to Find Mobile Vehicle Bay Fragments Subnautica Guide

18 August 2026 | 37

Subnautica challenges players to survive the beautiful yet dangerous depths of an alien ocean planet known as 4546B. While swimming offers an excellent introduction to the shallow reef, exploring deeper biomes requires advanced transportation systems to stay safe from predatory life. Unlocking these mechanical options depends entirely on securing the proper blueprints scattered across the seabed.

The Importance of the Mobile Vehicle Bay

The Mobile Vehicle Bay is an essential deployable platform that allows survivors to construct powerful underwater vessels like the Seamoth and Cyclops. Without this tool, exploring high-pressure zones or transporting heavy cargo across great distances becomes practically impossible. Acquiring the necessary components early in your playthrough drastically alters your survival efficiency and overall progression speed.

To complete the blueprint, players must successfully locate and scan three distinct fragments hidden within specific underwater environments. Managing your limited oxygen supply during these early scavenger hunts adds a layer of tension to your maritime operations. Aspiring explorers should monitor their positional coordinates closely to optimize their charting routes through murky waters.

Best Locations to Search for Fragments

The most reliable biome for discovering these vital structural fragments is the Kelp Forest, which is easily recognized by its towering green vines and playful Stalker populations. Scouring the sandy floor beneath the dense canopy often reveals cargo crates containing the discarded mechanical parts you need. It is wise to bring a flashlight along to illuminate the darker trenches where items frequently slide out of plain sight.

Another excellent region to explore is the Safe Shallows, particularly near small wreckage sites that broke apart during the Aurora crash landing. These shallow areas provide a safer environment for beginners to search without facing immediate threats from larger leviathan classes. Checking inside open metal boxes left behind by the ruined starship will frequently reward your thorough inspection with the final pieces.

Tips for Safe and Efficient Scanning

Before swimming into the dense Kelp Forest, ensure your inventory contains a fully functional Scanner tool and a high-capacity oxygen tank. Stalkers are highly attracted to metal objects and will occasionally steal your resources if you leave them unattended on the seafloor. Keeping your active tool equipped allows you to quickly log data before aggressive local wildlife disrupts your tracking mission.

Using a Steam account to connect with the global community can provide helpful community maps and shared coordinate markers for precise navigation. Once all three unique fragments are fully scanned, the complete blueprint unlocks automatically in your fabricator database. This milestone grants you the immediate freedom to construct your deployable bay and begin building your mechanized fleet.