BMW E46 3 Series (1997-2006) P3 Analogue Vent Gauge/Multi Gauge – OEM-Style Integrated Vent Pod Display: Boost & Vacuum, Battery Voltage, 0–5V Inputs (AFR, Oil/Fuel Pressure, MAP) – Fits E46 & M3, Ideal for Turbo/Supercharger

P3 Analogue Vent Display for BMW 3 Series E46 1997-2006 is the stealth, factory-look multi-gauge that E46 owners use to keep an eye on real engine data without cluttering the cabin. It sits in the interior vent for a clean, OE finish and delivers rapid readings for boost pressure, vacuum and your favourite performance senders with 0 to 5 V outputs. Ideal for turbo or supercharger conversions and brilliant for fast-road, track day and tuning builds where reliable data matters.

We have installed this unit on customer cars and the response has been superb. Drivers love the discreet look, the accuracy and the easy-to-read display that feels like it belongs in the 3 Series from day one.

Why enthusiasts choose this E46 vent-mounted multi-gauge

• Factory-style, dash-integrated display that keeps the interior uncluttered
• Boost pressure and vac readings for forced induction setups and diagnostics
• Two user-assignable 0 to 5 V analogue inputs for devices like oil pressure, fuel pressure, wideband AFR and MAP
• Built-in battery voltage monitor for quick electrical health checks
• Optional auto-dimming when the lights are on for comfortable night driving
• Fast refresh and proven reliability for daily use, spirited driving and mapping sessions

Important: this is not a plug-and-play unit. You will need to run a boost or vacuum reference line to the engine and hard-wire power, ground and any optional analogue inputs. A boost tap is not included.

Available readouts

• Analogue boost via dedicated plug to the included sensor. Boost tap not included
• Analogue input 1 on brown wire for any linear 0 to 5 V sender
• Analogue input 2 on blue wire for any linear 0 to 5 V sender
• Battery voltage via red and black power and ground wires

Optional auto-dim

Connect the green wire to a circuit that only powers up with the headlamps, then enable auto-dim in the menu for night-friendly brightness.

Perfect for popular performance sensors

• Wideband AFR controller output
• Oil pressure and fuel pressure transducers
• MAP and other aftermarket 0 to 5 V sensors
• Temperature modules that provide a linear 0 to 5 V output

What’s in the box

• Integrated vent display
• Analogue control box
• Main harness
• Hard-wire harness
• Analogue boost sensor. Boost tap not included
• Approximately 5' of 5/32" O.D. boost tubing with 5/32" I.D. hose at each end
• 3 zip ties
• 2 Scotch-style wire taps

Fitment and installation

Designed for BMW 3 Series E46 models from 1997 to 2006. Installation requires routing a vacuum or boost line, plus wiring for power, ground and any additional 0 to 5 V inputs. If you would like professional fitting, MJ Modifications in Warwickshire can help. Request a quote at info@mjmodifications.co.uk.

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Add this P3 analogue vent display to your E46 for a stealth install, rock-solid data and total confidence on the road and track.