CANchecked MFD28 Gen2 for Audi A4 B5

The MFD28 Gen2 replaces the air vent with an integrated data display while maintaining airflow. It’s designed for straightforward installation and is commonly supplied with illustrated instructions.

Key features

• Integrated fitment: Vehicle-specific bezel with continued vent airflow
• CAN bus data: In-depth ECU data readout (manufacturer-level depth)
• Gear display: Via CAN bus or calculated from speed and RPM
• Touchscreen: Page navigation with swipe gestures
• Custom pages: Build your own layouts, add pictures or a start animation
• Inputs: Up to 4 analog inputs plus direct ethanol sensor input
• CAN switching: Use the display as a keypad and send custom CAN messages
• Configurable alarms: User-set warnings (e.g., EGT warning above 900°C)
• Logging: Record data to the internal SD card for later review
• Performance meter: 0–100, 100–200, and 0–200 timing without extra hardware
• DTC*: Read/clear faults from engine ECU, transmission, ABS, and all-wheel drive
• Dimming*: Auto-dims with the instrument lighting

Pages and layouts

• Delivered with predefined sample pages
• Create and save your own pages (up to 10)
• 20 widget types (e.g., sensor value, analogue pointer, YT diagram, speed bar, round display, vertical/horizontal bar)
• Drag-and-drop positioning with scalable widget sizes
• Fully adjustable widget colours
• Up to 64 widgets per page

Display Setup Software (DSS)

DSS is used to configure the display, download and review log files, and use the integrated CAN logger. The integrated TRI Editor allows sensor configuration for CAN bus and internal channels, including min/max warning thresholds and sensor naming.

Supported ECU values

The display supports CAN bus data query (UDS, TP2, and manufacturer-specific protocols). It is supplied with predefined TRI/TRX files that define which sensors are queried; content varies by engine, and additional values can be added later.

Examples of supported channels

Temperatures

• Exhaust temperature, coolant temperature, oil temperature, intake temperature, outside temperature, gasoline temperature, DSG temperature

Pressures

• Boost pressure, ambient pressure, fuel pressure (pre-feed pump), rail pressure (actual/target)

Lambda/mixture

• Lambda value, injection time, short-term lambda adjustment, long-term lambda adjustment

Other

• RPM, air mass, vehicle speed, throttle angle, total ignition angle, ignition angle retraction per cylinder, N75 timing (%), terminal 30 voltage, torque, gear, diesel-specific values

What’s included

• MFD28 Gen2 display integrated in the ventilation insert (LHD & RHD)
• Connector A (8-way Molex)
• Connector B (10-way Molex)
• Pre-assembled connection cables (20 cm) for power, CAN bus, analog inputs, 5V, sensor ground
• Crimp pins
• Two 1K resistors (pull-up for external NTC sensors)
• Quickstart guide
• USB data cable
• SD card (pre-installed)
• SD card adapter
• Display foil (anti-reflection)

Connections and expansion

Four analog inputs support linear 0–5V sensors and NTC sensors. CANchecked sensors are stored in the TRI/TRX files by default and only need to be connected.

• AIN1: Temperature sensor (NTC01)
• AIN2: Type K exhaust gas temperature converter (TCC01)
• AIN3: 0–10 bar pressure sensor (FLP01)
• AIN4: 0–5.5 bar absolute boost pressure sensor (BST10)

A pre-assembled AIN wiring harness can be used for connection.

An external shift light with eight LEDs can be connected; colours and shift points are configurable on the display.

An ethanol sensor connects directly to the display. A 10K pull-up resistor between 5V and the signal is required to view and log ethanol content and temperature.

Advanced functions

Math Channels allow calculated sensors. The User Table enables additional sensors using 2D or 3D maps.

Optional accessories

• CC24000 SLM08 – external switching lightning module
• CC22780 ANC04 – four-way AIN harness
• CC22100 CBD08 – eight-way CAN distribution hub
• CC22902 NTC01 – temperature sensor for liquids (1/ inch" NPT)
• CC22903 TCC01 – type K converter (0–1250°C)
• CC22901 FLP01 – pressure sensor 0–10 bar (145 psi) M10x1
• CC22900 BST10 – pressure sensor 6.5 bar relativ (95 psi)

*Not available on all protocols.