Audi A3 (8V) 2015-2018

Supported Vehicles:

Audi A3 (8V) USDM

Sedan
- 6-speed Quattro 2015-2018
- 7-speed FWD 2017-2018
Cabriolet
- 6-speed Quattro 2015-2018
- 7-speed FWD 2017-2018

Map Revision:

Map	Revision

Map	Revision
Stage0 Stage1 Stage1+FlexFuel Stage2	v303

Required Accessport Firmware:

AP3-VLK-002: 1.7.4.2-24849

For more information on CARB Exemption Orders for this vehicle as well as the actual letter check out our page CARB EO numbers for COBB VW Products

COBB Custom ECU Features:

These cars offer a variety of added features such as launch control and traction control. For more information check out our guide COBB Custom Features: Volkswagen MQB Platforms

We've noticed a few simple issues can cause flashing your car to fail so it's critical to watch out for these problems.

A 10-12 amp battery charger is CRITICAL to keep the voltage stable when flashing, if the voltage goes too low it can cause the flash to fail or brick the module.
If your key's battery gets low and dies or you walk away, the key can become disconnected from the car and cause the ECU to lose flash mode.
Make sure to disable bluetooth on your cellphone as the process in which it connects to the stereo can also cause the flash to fail.

Fuel Requirements:

Each map lists the minimum required octane. A higher octane fuel can be used safely on a map designed for lower octane. DO NOT use maps designed for higher octane with lower octane fuels. Top Tier gasoline should be used where available.

Maps designated with "91 OCT or 95 RON " are for use with 91 and 92 octane/95 RON fuel or better.
Maps designated with "93 OCT or 98 RON" are for use with 93 octane/98 RON fuel or better.
- 94 octane with 0% Ethanol should run the ACN91 Map.

Running 0% Ethanol Fuels

These maps are designed for E10 fuel (fuel with 10% ethanol content). For those who only have access to E0 fuel (fuel with 0% ethanol) it is recommended to use the "91" and "ACN91" octane versions of the maps and datalog the car to ensure your fuel is performing to the necessary level. This is especially important for those using Canadian 94 octane E0 fuel.

Stage1

Intake Requirements :
- stock air filter
- Stock airbox with drop-in replacement,
- COBB Redline CF Intake 7A1100
Exhaust requirements : Stock exhaust
Boost Target:
- 91 Octane 95 RON: ~22.5 psi peak boost pressure tapering down to ~13 psi as you approach the 6800 RPM redline, +/- ~2 psi
- 93 Octane 98 RON: ~23.5 psi peak boost pressure tapering down to ~14 psi as you approach the 6800 RPM redline, +/- ~2 psi

Stage1+Flex Fuel

Peak Power is achieved at 30% ethanol content

Intake Requirements :
- stock air filter
- Stock airbox with drop-in replacement,
- COBB Redline CF Intake 7A1100
Exhaust requirements : Stock exhaust
Fueling Requirements: COBB Flex Fuel Upgrade Kit 3V2650
Boost Target:
- 91 Octane 95 RON: ~22.5 psi peak boost pressure tapering down to ~13 psi as you approach the 6800 RPM redline, +/- ~2 psi
- 93 Octane 98 RON: ~23.5 psi peak boost pressure tapering down to ~14 psi as you approach the 6800 RPM redline, +/- ~2 psi
- Ethanol: As much as an additional 2psi peak boost pressure with the most at 30% ethanol (E30)

Stage 2

Map	Peak Gains*

Map	Peak Gains*
Stage2 93	+26.1% HP / +28.9% TQ

Stage2

Intake Requirements :
- Stock air filter
- Stock airbox with drop-in replacement,
- COBB SF Intake 7V2150
- COBB Redline CF Intake 7A1100
Exhaust Requirements: Stock exhaust or upgraded cat-back exhaust
Intercooler: AMS Performance Front Mount Intercooler (Covered under D-825-3)
Drivetrain: Upgraded Clutch or DSG Software Recommended
Boost Target:
- 91 Octane 95 RON: ~24 psi peak boost pressure tapering down to ~15 psi as you approach the 6800 RPM redline, +/- ~2 psi
- 93 Octane 98 RON: ~25.5 psi peak boost pressure tapering down to ~16 psi as you approach the 6800 RPM redline, +/- ~2 psi

Non-Performance Maps

Anti-Theft Mode

Will not allow vehicle to start

Valet

Fuel Requirements:
- 91 octane or better
Intake Requirements: Stock airbox and stock air filter
Exhaust Requirements: Stock exhaust
Boost Targets: Mechanical minimum
Rev Limiter: 3000 RPM

*Not intended for aggressive driving*

Revision Notes:

Version	Notes

Version	Notes
v303	Updated to fix issue with ethanol monitor used monitor reading incorrectly
v302	fixed bug with rpm limiter in CCF features, initial Flex Fuel release
v300	Updated for backend improvements. Fixed bug where CCF adjustments sometimes didn't work via AP
v201	No calibration changes. Maps have been updated to eliminate unnecessary DTC suppression.
v200	Consolidation of OEM ROMs into C0BB01.
v103	Stage1 91 and Stage1 93 OTS maps have been revised for an over all improved driving experience. Adjustments made to default CCF Traction control.
v102	evised map naming for parity. Enabled Cobb Custom Features: Traction Control.
v101	Enabled Cobb Custom Features: Launch control and Flat Foot Shift. More details here - COBB Custom Features: Volkswagen MQB Platforms Flat Foot Shift RPM (Per Gear): Burn out mode Rev. Limit: 5000 RPM Launch Control Rev. Limit by speed/slot:
v100	Revised ignition timing, primary fueling and boost levels for performance and safety