Wagner Tuning Audi A4 B9 2.0TFSI MFD28 Gen2 Digital Dash Display

Audi A4 B9 Display - Unlock the Power of Data


Introducing our advanced display for the Audi A4 B9 (including S4/RS4) and A5 F5 (including S5/RS5) models. With this cutting-edge display, you gain access to all the data from your engine control unit, and we mean all of it. Our display queries the sensors directly via the Can Bus protocol and presents the information on our reliable MFD28 display. The Audi A4 B9 Display seamlessly integrates into your vehicle's interior with a custom-made frame, mimicking an original part.



We've fine-tuned the manufacturer-specific Can Bus protocol to achieve maximum query speed.



Key Features:



Perfect integration into your vehicle's interior

Query up to 128 sensors

10 individually customizable views with our DSS - Display Setup Software

Pre-configured views for a quick start with our display

Easy Plug-and-Play installation with our cable set – simply plug it in and you're ready to go

4 additional analog inputs for monitoring exhaust temperature, oil pressure, and more

Direct ethanol sensor integration

Best readability with an optional anti-glare film

Sensor querying on par with manufacturer diagnostic tools



Additional Features:


Performance Meter: Measure your acceleration times with our Performance Widget – 0-100, 100-200, 0-200.



Data Logging: Log all data on the internal SD card – whether it's "on-demand" (start with a fingertip) or permanent. All data from your last drive is stored.



Preset Alarms: Activate and customize pre-set warning messages, such as receiving a significant warning when the exhaust temperature exceeds 900 degrees.



4 Analog Additional Inputs: Connect additional temperature and/or pressure sensors for further monitoring possibilities, including exhaust temperature or exhaust backpressure. An ethanol sensor can be connected to one of the digital inputs.



Error Reading/Deletion: Read engine control unit errors in plain text and delete them.



Customization: Customize the startup screen or choose from various widgets to tailor the display to your preferences.



Seamless Vehicle Integration: Our display fits all left-hand drive Audi A4 B9 and A5 F5 vehicles. A version for right-hand drive is currently in development.



Access to All Engine Control Unit Data: We provide your display with a pre-configured TRI File as standard. This file defines all the sensors that can be queried, including:



Temperatures: Engine coolant temperature, intake air temperature, exhaust temperature, transmission temperature.



Pressures: Boost pressure, ambient pressure, oil pressure.



Lambda/Mixture: Lambda target/actual, short-term lambda adaptation, long-term lambda adaptation, MAF, engine load, torque.



Driver Dynamics: Brake pressure, vehicle speed, throttle angle/gas pedal position.



Other: RPM, total ignition angle, gear, battery voltage, ignition angle correction per cylinder.



Analog Inputs: Additional sensors like oil temperature, fuel pressure, oil pressure, exhaust temperature, and more can be added, including an ethanol sensor for Flex Fuel vehicles.



Please note that not every engine provides all these values.



For which engines and models is this Audi A4/A5 Display suitable?


The frame of the display fits all left-hand drive Audi A4 B9 and A5 F5 vehicles (LHD). A version for right-hand drive (RHD) is currently in development.



Scope of delivery


Included with every delivery




MFA28 Gen2 data display integrated in the cluster

Quickstart Guide

USB data cable

SD card (pre-installed in the display)

SD card adapter

Display foil (to prevent reflections)

Plug and play connection cable to OBD port



Connection and extension


Any sensors can be connected via the four analog inputs - we support linear 0-5V as well as NTC sensors.

Our in-house Wagner Tuning Dsiplay sensors are stored in the TRI/TRX files by default and only need to be connected:




AIN1: Temperature sensor

AIN2: Transducer for exhaust gas temperature sensor type K

AIN3: Pressure sensor 0-10 Bar

AIN4: boost pressure sensor 0-5,5 Bar absolute



Beside the analog sensors you can also connect our external shift light with 8 LEDs. This can flash in different colors and the speed limits and colors can be configured directly on the display.



You connect the ethanol sensor directly to the display. You need a pullup resistor (10K) between 5V and signal. Then you can view and log the ethanol content and temperature directly on the display.



Advanced functions


With the Math-Channels you can calculate sensors with each other. The User-Table gives you the possibility to generate further sensors with 2D or 3D maps. 



Optional accessories



WT24000 SLM08 - external switching lightning module

WT22100 CBD08 - eightfold Can Distribution Hub

WT22902 NTC01 - temperature sensor for liquids 1/8" NPT

WT22903 TCC01 - type K converter 0-1250°C

WT22901 FLP01 - Pressure sensor 0-10 Bar (145psi) M10x1

WT22900 BST01 - Pressure sensor 0-5,5 Bar absolute (80psi)



Installation Guide: 


We provide an illustrated installation guide to make the installation process hassle-free.



Unlock the full potential of your Audi A4 B9 or A5 F5 with our advanced display. If you have any questions or need more information, please don't hesitate to contact us.