P3 Gauges V3 Vent-Mounted OBD2/OBDII Multi Gauge for Volkswagen Passat B8 (2015+) | Hidden Air Vent Digital Boost Gauge & Performance Monitor | Scan/Clear Codes | Fits VW Passat 3G MQB Saloon/Estate

Stealth vent-mounted digital performance display for Volkswagen Passat B8 2015 onwards

Transform your Passat B8 cockpit with a factory-look digital display that sits neatly in the air vent and keeps airflow fully functional. This clever vent gauge delivers live engine data, a compact dash monitor feel and a clean OEM-style finish. Ideal for road, track and tuning enthusiasts who want real-time information without bulky add-ons.

Why drivers choose this vent display

• Simple fitment with a quick connection to the vehicle diagnostic socket, no cutting or splicing required
• Factory-style integration for a discreet, stock-looking install that retains ventilation
• Reads manifold pressure using factory sensors or via an optional analogue boost sender
• Scan and clear fault codes to keep on top of DTCs when you need it most
• Switch between units easily, mph or km/h, psi or bar, Celsius or Fahrenheit
• Acceleration and braking timers for real-world performance testing

Live data on tap

View key parameters right where you want them. Every readout can be configured individually in Imperial or Metric units:

• Boost or manifold pressure via vehicle sensors, or using an optional analogue pressure sensor
• Coolant temperature
• Air fuel ratio, AFR or Lambda
• Vehicle speed with fine calibration in 1 percent steps from -9 percent to +20 percent
• Intake air temperature, IAT
• Throttle position
• Ignition advance
• Engine RPM
• Exhaust gas temperature, EGT
• Battery voltage
• Programmable shift light
• Two 0 to 5 volt analogue inputs for additional sensors
• Acceleration timers 0 to 60 mph, 0 to 100 mph, 60 to 130 mph
• Braking timers 60 to 0 mph, 100 to 0 mph

Perfect for the Volkswagen Passat B8 2015+

Designed to suit the Passat B8 platform from 2015 onwards, this vent gauge provides a sleek upgrade for saloon and estate models. It is a smart way to add a digital dash display, turbo boost reader and on-board performance monitor without cluttering the cabin.

Keep your diagnostic port free

Prefer to leave the diagnostic socket available for other equipment or mapping sessions? A hardwire harness is available separately so you can power the display while keeping the port open.

Trusted by enthusiasts

We run this vent display in our own builds and our customers love the clean look, accurate data and ease of use. It is a brilliant upgrade for anyone wanting a hidden boost gauge, a live data reader, an on-board scanner and a compact performance screen in one.

Professional installation

Want it fitted properly first time? Book expert installation with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored quote.

Search-friendly terms

Volkswagen Passat B8 vent gauge, VW Passat digital boost gauge, hidden vent display, dash performance monitor, on-board scanner, diagnostic display, AFR and Lambda gauge, IAT and EGT readout, RPM and shift light, speed calibrator, acceleration timer, braking timer, MQB platform gauge, UK tuning parts, performance car accessories for Passat B8 2015 onwards.