Dataset
The dataset consists of 4352 Bytes of data. It's rougly constructed as follows:
The most relevant data here is from the first 4 byte. Bytes 0 to 4 hold the version. In the following example, the version is "OC00". This is unique for a specific configuration of the dataset. There's a lot of variation in datasets, but some cars can share the same dataset, even across brands. It might be interesting to create a registry of dataset versions.
There's a lot of unknown data in the area between the header and 0x0296. I've written down some examples of data I've seen in OEM datasets, but haven't yet found the relevance of most of them. I marked them in red.
This is a very relevant set of bytes, containing what profile buttons are showing on screen when you press the button. There are 12 profile positions. In this example, 6 bytes are actually filled in. If you set a byte here, it will set a given profile name/graphic to a given profile. In the example, you see profile positions 0, 1, 2, 3, 4 and 6 holding data.
This translates to the following buttons (if your car has the FECs for all of them! Most cars don't have an Offroad FEC, which means the button would be hidden):
If you would change the value in the 3rd position to "06" instead of "03", it would become:
Note: This works, even without the FEC for Race.
Note2: This change will not turn your profile into a Race profile, it will only change the appearance in the user interface and OBD-measurements channel by Race. It's a cool little modification, but it doesn't add any FECs to your car or make the engine run in Race mode all of a sudden. All other profile properties will remain like they were before the modification of this byte.
The following values are known:
- 0x00: not set
- 0x01: Comfort
- 0x02: Auto/Normal
- 0x03: Dynamic/Sport
- 0x04: Offroad
- 0x05: Eco/Economy
- 0x06: Race
- 0x07: Individual
- 0x08: Range/PHEV 1
- 0x09: Lift/PHEV 2
- 0x0a: Offroad Snow/PHEV 3/EV On
- 0x0b: Offroad individual/PHEV 4/Hybrid auto
- 0x0c: Offroad 4/Hybrid hold
- 0x0d: Offroad 5/Hybrid charge
- 0x0e: Offroad 6/Hybrid area
- 0x0f: EV Off
- 0x10: Second hold/Torque Vectoring
- 0x11: Racetrack/Hybrid Charge Off
- 0x12: Offroad level 2 / Adaptive
- 0x13: Offroad level 3 / Traction
- 0x14: Offroad level 4
- 0x15: Hybrid sport
- 0x16: Second auto
- 0x17: Unknown profile
- 0x28: GTE off
- 0x29: GTE off 2
- 0x2a: Unknown profile 2
- 0xFF: none
This range determines what profile position it returns to after restarting the car. In the next example, it will return to the same profile after restart, except when it's in offroad-mode (4th position), then it will return to Normal upon restart.
The following values are possible:
- 0x00 to 0x0B: the 12 profile positions
- 0xFF: Not set
This range consists of 12 sets of 30 bytes. Each set is a profile, so there are 12 profiles. Each profile consists of 30 bytes that define a specific setting. In the next example, you see 13 positions with data. On itself it has no meaning, but looking at the 30 bytes at 0x4CD, you will know what controls are at which byte position.
The current values are known: The real meaning of each of these, is defined at 0x4EB
- 0x0: not set
- 0x1: Comfort
- 0x2: Normal
- 0x3: Sport
- 0x4: Off-road
- 0x5: Eco
- 0x6: Race
- 0x7: Individual
- 0x8: Config 8
- 0x9: Config 9
- 0xa: Config 10
- 0xb: Config 11
- 0xc: Config 12
Each byte defines a specific control at the position used in the previous range. If you set one, and don't see it, it could be that a setting is grouped, hidden or doesn't have any settings underneath.
The current values are known:
- 0x00: not set
- 0x01: Engine
- 0x02: Start-stop system
- 0x03: Gearbox
- 0x04: Rear differential Lock
- 0x05: Steering
- 0x06: Progressive Steering
- 0x07: DCC
- 0x08: Airco
- 0x09: ACC
- 0x0A: Interior Engine Sound
- 0x0B: Motorway Light
- 0x0C: Background Lighting
- 0x0D: Air suspension
- 0x0E: Automatic Belt pre-tensioning
- 0x0F: Seat Bolster Setting
- 0x10: Route Option
- 0x11: Navigation
- 0x12: DSG Coasting
- 0x13: Eco tips
- 0x14: Exterior engine sound
- 0x15: Front differential lock
- 0x16: Center differential lock
- 0x17: Four-wheel drive
- 0x18: Electronic torque vectoring(Audi-Text)
- 0x19: Anti-slip regulation
- 0x1A: Headlight control
- 0x1B: Rear spoiler
- 0x1C: ESC System
- 0x1D: Rear Axle Steering
- 0x1E: Adaptive body roll compens
- 0x1F: Road recognitiion
- 0x20: Hybrid drive
- 0x21: Drive
- 0x22: Chassis
- 0x23: Exhaust valves
- 0x24: Engine Sound
- 0x25: Passenger Compartment
- 0x26: Driver's seat
- 0x27: Tyre pressure monitoring syst.
- 0x28: Lane Assist
- 0x29: Aggregatelagerung(Audi-Text)
- 0x2A: Magnetic ride (Audi-Text)
- 0x2B: Sport Select chassis
- 0x2C: Hill Descent Assist
- 0x2D: Hill Hold Assist
- 0x2E: Parking assist
- 0x2F: Instrument cluster
- 0x30: Infotainment system
- 0x31: Eco driving tips
- 0x32: Speed adjustment
- 0x33: Electronic engine sound
- 0x34: Nothing displays, just Engine
- 0x35: Nothing displays, just Engine
- 0x36: ESC System
- 0x37: Nothing displays
- 0x4c: Freilauf_DefaultON
On the Virtual Cockpit / Active Info Display, a banner can be displayed that explains what profile is set. Depending on the car, brand and chosen profile, it will display a logo or some text.
In the following example, you see what profile names/banners are shown on the AID, but there are many more possibilities.
The following are known values:
- 0x00: Not set
- 0x01: Comfort
- 0x02: Normal
- 0x03: Sport
- 0x04: Offroad
- 0x05: Eco
- 0x06: Individual
- 0x07: Race / Cupra
- 0x08: Eco
- 0x09: Eco: driving and performance restricted
- 0x0a: E-mode
- 0x0b: Hybrid auto
- 0x0c: Battery hold
- 0x0d: Battery charge
- 0x0e: E-mode currently not available
- 0x0f: Eco+
- 0x10: Snow
- 0x11: Normal
- 0x12: Offroad individual, check individual settings
- 0x13: Auto
- 0x14: Driving mode unable to switch
- 0x15: Hybrid mode, unable to switch
- 0x16: Driving mode eco not available
- 0x17: Driving mode normal is not available
- 0x18: Mode Battery hold not available
- 0x19: Driving mode normal is not available
- 0x1A: Mode Battery charge not available
- 0x1B: GTE off
- 0x1C: GTE logo
-- more will be added in the upcoming days --