Used Mercedes-Benz Vito Fuel Tank

The Vito has run across three clear generations: the W638 (1996–2003), the W639 (2003–2014, with a facelift around 2010), and the W447 (2014–present). As a general rule, fuel tanks interchange most reliably within the same generation, and crossing a generation boundary is unlikely to be a straight swap due to changes in tank shape, mounting points, and sender unit configuration. Your engine code — found on your V5 or via a VIN check — is the most important detail to give a breaker, alongside your generation, as fuel type and engine variant can affect tank specification even within a generation. Never assume fitment without the breaker confirming against your exact registration.

These are separate generations with different underpinnings, so a W639 tank is very unlikely to fit a W447 without significant modification to mounting positions and fuel lines. The W447 generation brought a substantially redesigned platform, making cross-generation swaps on structural and fuel system components genuinely risky. Always confirm with the breaker against your exact registration before purchasing, as this boundary is one where fitment differences are well established.

Both sit within the W639 generation (2003–2014), so there is a reasonable chance of compatibility, but ancillary details such as sender unit connections or filler neck routing may have changed during the mid-production facelift around 2010. The engine code and fuel type (diesel or petrol) remain the most important matching points, so give these to the breaker alongside your registration so they can confirm whether the specific part from each side of that boundary will interchange cleanly.

Trim level does not affect fuel tank fitment on the Vito — the tank is determined by engine code, fuel type, gearbox type, and year within the generation, not by whether the van is badged Tourer, Sport, Pro, or any other specification. You may find cosmetic or interior differences between trim levels when inspecting a donor vehicle at the breaker, but these are irrelevant to the tank itself. Focus on matching the engine code and generation, and let the breaker confirm against your registration.

Sharing a fuel type is a necessary starting point, but it is not sufficient on its own — the engine code matters more than the general 'diesel' badge because different diesel variants within the same generation can have different fuel system configurations. For example, a 2.1-litre CDI and a 3.0-litre CDI may not share the same tank specification even within the same generation. Give the breaker your full engine code (from your V5 or a VIN check) alongside your registration so they can match the correct part rather than relying on fuel type alone.

Wheelbase affects the physical length and routing space available in the vehicle, so a long-wheelbase tank may differ in shape or capacity from a standard-wheelbase equivalent, even within the same generation and engine variant. Body style and wheelbase are worth mentioning to the breaker alongside your engine code and registration, as these can influence tank dimensions in vans in a way they typically would not in passenger cars. Confirm the specific part against your registration with the breaker before buying, as this is not a detail that can be safely assumed to be interchangeable.