Mercedes-Benz Vito Seat Belt Replacement Parts

The Vito has had three main generations: the first-generation W638 ran from 1996 to 2003, the second-generation W639 ran from 2003 to 2014, and the third-generation W447 launched in 2014 and is still in production. Seat belts are generation-specific, so a W638 belt will not interchange with a W639 or W447 unit. Always tell your breaker which generation you have, or simply provide your registration so they can confirm the exact match.

A 2012 Vito is a W639 (second generation), while a 2015 Vito is a W447 (third generation), so these sit either side of the 2014 generation change. Seat belt anchorage points, retractor mechanisms, and pretensioner systems differ between these two generations, making a direct swap very unlikely. Confirm with your breaker against both registrations before purchasing, as fitting an incompatible belt is a serious safety risk.

For the Vito, the trim level — such as Traveliner or Sport on the W447, or Ambiente, Trend, or Artisan on earlier versions — can affect the seat configuration and therefore which belt assembly is correct, particularly for rear seats where seating layouts vary. Front seat belts are generally consistent across trims within the same generation, but rear belt configurations can differ depending on how many seats are fitted and their arrangement. Let your breaker know your trim alongside the generation so they can supply the right unit.

Yes, seat belts are handed — the nearside (NS) is the passenger side and the offside (OS) is the driver side — and the retractor, stalk, and buckle assembly differ between the two. Always specify NS or OS when contacting a breaker, as supplying the wrong side is a common and easily avoidable mistake. Front and rear belts also differ, so clarify the exact seating position too.

Seat belts on modern vehicles like the W447 Vito often include pretensioner mechanisms that are pyrotechnic devices, meaning they fire once in a collision and cannot be reused — so you must confirm with the breaker that the unit has never been deployed. Because seat belts are safety-critical components, professional fitting by a qualified technician is strongly recommended to ensure correct installation and to verify the pretensioner variant is compatible with your vehicle's SRS system. Never fit a belt that shows signs of damage, stretching, or prior deployment.

Front seat belts are not affected by wheelbase, so NS and OS front units should interchange between standard and long-wheelbase versions within the same generation and trim level. However, rear seat belts can vary depending on the seating layout and number of rows fitted, which can differ between wheelbases and body configurations. Confirm with your breaker by providing both your registration and the exact seating position you need to ensure the correct match.