Where is the computer port of the Mercedes-Benz Viano?

3 Answers
HannahFitz
07/29/25 9:52am
The computer interface of the Mercedes-Benz Viano is located under the hood, at the upper left corner of the engine. Viano dimensions: The domestic Mercedes-Benz Viano commercial vehicle has overall dimensions of 4993×1901×1875mm, with a wheelbase of 3200mm, providing ample interior space. Viano positioning: The Viano is a series under the Mercedes-Benz brand, positioned as a 'diplomatic-level MPV' by Mercedes, representing the pinnacle of MPVs with its core advantages of 'intelligent business space and meticulous Mercedes craftsmanship.'
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LaAnastasia
08/13/25 11:51am
I remember after all these years of repairing Mercedes-Benz vans, the diagnostic port for the Viano is usually hidden near the driver's footwell, close to the accelerator pedal or directly below the steering wheel, on the inner side of the dashboard. Bend down and look inside, and you'll spot a small square connector labeled with the OBD II logo. If you can't find it right away, try checking near your left leg or behind the glove compartment under the passenger seat, but it's most likely on the driver's side. When plugging or unplugging, don't yank it forcefully to avoid damaging the wires—connecting a diagnostic tool for data reading is straightforward. Avoid tampering with it unnecessarily to prevent affecting the vehicle's operation. It's advisable to use a phone flashlight for better visibility, so you don't waste time fumbling in the dark.
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DelSteven
10/06/25 8:20am
I've been driving the Viano for several years, and the OBD port is located on the lower left side of the driver's seat, roughly in the knee-level dashboard area. When I last changed the headlights, I had the mechanic point it out to me. It's usually exposed on the surface, sometimes covered by a small flap that's easy to lift. The position is quite well-designed – when diagnosing vehicle faults, just plug in the diagnostic cable to read the codes, saving the hassle of fiddling in the engine bay. Occasionally it might be tucked in the footwell corner, but don't worry, just crouch down and look carefully – you'll always find it. Remember not to plug and unplug too frequently to avoid oxidation or damage to the port, which could affect its efficiency next time. I recommend checking the service manual to confirm – safety first.
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