Mercedes Viano Vito W638 + plug

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Seat occupancy sensor emulator and seatbelt buckle emulator for Mercedes Vito Viano W638, manufacturing years: 1995-2003, with 3 wired seat occupancy sensor.
Rarely there may be 2 wired seat mat on W638 - this emulator doesn't fit 2 wired seat occupancy sensor.

If you have US version Mercedes, please check under the seat if mat connector looks exactly the same and has 3 wires inside - brown, red, white.

The emulators are equipped with original Mercedes connectors - easy installation.

We sell only highest quality products made in EU.


The emulator is a diagnostic device which sends to an airbag control unit the same signal as that sent by the seat occupancy sensor while a passenger is sitting. It turns off the airbag indicator (if it is caused by faulty seat occupancy sensor), the airbag works as if the seat was always occupied.

We add seatbelt emulator - after installing the seat mat emulator, a car computer sees a passenger seat as always occupied and - if the car is equipped with seatbelt warning system - the unfastened seat belt warning light/sound appears. The seatbelt emulator turns it off. If there is no seat belt warning system on your car, you don't need the seat belt emulator - please attach to your order information if you need it or not.



The seat occupancy sensor plug has 3 wires - red, brown, white.


We're a company from Poland, we ship orders paid till 1:00pm CEST every working day.

Economy shipping option is slow. If you really care about time, please consider choosing expedited shipping.
If you have questions about the shipping, please contact us - it differs depending on a country.


When the emulator is installed, you MUST NOT use child seat in the front seat because airbag will always work in case of an accident!

Please fill in the installation protocol (protocol - click) during the installation. It will simplify us to help you in case of any problems.

Before purchase please make sure if you need the emulator and if it is correct for your car. Should you have any questions, we'll be happy to help you. Please contact us:


Emulator is not a factory-made equpiment of Mercedes and should only be used for diagnostic purposes. By clicking buy you agree that we are not liable for any damages or losses that may arise from the use of the emulator. Also make sure that fitting this module is not against the law in your country. By clicking buy you agree that we are not responsible for any problems on your airbag system as this is a simple proven resolution for a faulty passenger seat occupancy mat only and you wish to temporarily eliminate the occupancy mat error. Under no circumstances, including but not limited to negligence, shall the seller be held liable for direct, indirect, incidental, special or consequential damages including but not limited to harm to any equipment and/or for personal injury/death arising out of the use, or the inability to use the bypass item sold on this website.

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