P3 Multi Gauge for BMW E46 3 Series – OEM Vent Digital OBD2 Gauge
Upgrade your BMW E46 3 Series interior with the P3 Multi Gauge, the stealth OEM-vent digital gauge trusted by enthusiasts for real-time data, diagnostics and performance monitoring. This E46 vent gauge delivers an OEM look with cutting-edge functionality, combining OBD2 multi-gauge convenience with optional direct-boost capability. Perfect for road and track, it is the cleanest, plug-and-play way to add a digital boost gauge, coolant temperature gauge, intake air temperature display, EGT, RPM and more to your E46.
Important compatibility notes: not compatible with many tuned or euro software M3 models. Please contact us before ordering, or select the P3 Boost Gauge for boosted M3 applications. Diesel engines are not supported.
Why choose the P3 Multi Gauge for your E46 3 Series
- Plug-and-play installation – simply connect to the OBD2 port and fit into the dash vent for a factory finish.
- Reads and clears OBD2 fault codes – a powerful built-in scan tool for diagnostics on your BMW E46.
- Clean OEM-vent integration – a stealth digital gauge with an OEM look, no cluttered pods or pillar mounts.
- Unmatched feature-to-price ratio – multiple gauges in one compact display for the E46 3 Series.
- Peak recall on all functions – quickly review max values from your drive or track session.
- Optional auto-dim or manual dimmer – perfect brightness day or night.
- Two universal 0-5 V linear analog inputs – add sensors and expand your data logging.
- Includes digital display, custom OBD2 wire harness and control box – everything you need to get started.
OBD2 data and performance functions
- Coolant temperature
- Intake air temperature
- Exhaust gas temperature
- Throttle plate position
- Vehicle speed
- RPM with shift light
- Battery voltage
- 0-60 timer
- And more through OBD2 live data
Optional 80 psi boost sensor and tubing kit
- 80 psi boost sensor lets the gauge read boost directly from the intake or charge pipe.
- Plugs directly into the OBD2 harness – no additional wiring required.
- Easily added or removed from the gauge at any time.
- Tubing kit includes approximately 60 inches of 5/32 inch O.D. flexible plastic tubing, a 5/32 inch O.D. T-fitting and three sections of 5/32 inch I.D. vacuum hose.
OEM vent option for the perfect fit
Choose the OEM vent option and we will supply the display pre-installed in a genuine-style vent for your vehicle, making installation even easier and ensuring a seamless factory appearance in your BMW E46 3 Series interior.
Configuration and units
On-the-fly configuration menu allows you to set units and preferences to suit your build: BAR or PSI, Celsius or Fahrenheit, MPH or KPH, shift-light settings, analog boost sensor calibration and more.
For install and setup details, see the official P3 guide: www.p3gauges.com/install
Fitting and support
Plug-and-play for a straightforward DIY install. Prefer professional fitting for your BMW E46 3 Series gauge upgrade? Nforcd offers expert installation in Warwickshire. Request a fitting quote at Sales@nforcd.com.
Why buy from Nforcd
We run these P3 digital vent gauges on our own builds and they have been a customer favourite for reliability, clean OEM presentation and accurate data. If you want a BMW E46 OBD2 multi gauge that looks factory yet gives you boost, temps, RPM, shift light and diagnostics in one unit, the P3 Multi Gauge is the go-to choice.
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