Audi A4/S4/RS4 (8K)

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Audi A4/S4/RS4 (8K/FL)
Eric's S4.jpg
Source: Ross-Tech, LLC
Manufacturer: Audi AG
Chassis Code: 8K/FL
Platform: B8
Model Years: from 2008
Model Years (US): from 2009
Predecessor: (8E/8H)
Successor: None
Interface Hardware
DLC Location

The DLC is located in the Driver Footwell near Hood Latch.

General Information about this Model can be found in the Wikipedia entry.

We have small list of Common Modifications & Tweaks for the B8 (A4/S4/A5/S5/Q5).

[01] - Engine Electronics

Gasoline Engines

Diesel Engines

[02] - Transmission Electronics

[03] - Brake Electronics

Note: The Steering Angle Sensor (G85) Calibration is done in address [16] - Steering Wheel Electronics

[05] - Access/Start Authorization

[06] - Seat Adjustment (Passenger)

[07] - Control Head Front

[08] - Heating/Air Conditioning

[09] - Central Electronics


[0E] - Media Player I

[0F] - Radio (Digital)

[14] - Suspension Electronics

[15] - Airbag

Note:Replacement of the Airbag control module may result in Component Protection DTCs such as U1101 and U1100. Component Protection can only be learned/disabled using the Factory Tool in Combination with an online Connection.

[16] - Steering Wheel Electronics

[17] - Instrument Cluster

[19] - CAN-Gateway

Note: This model doesn't use an actual 61-Battery Manager. The battery management control module is a slave/subsystem of the CAN Protocol CAN Gateway which requires the use of Long Adaptation under address 19-CAN-Gateway. Follow the onscreen instructions to enter the Part Number, Vendor, and Serial Number all as one long new value.

[1B] - Active Steering

[36] - Seat Adjustment (Driver)

[37] - Navigation

[42] - Door Electronics Driver

[44] - Steering Assist

[46] - Comfort System

[47] - Sound System

[52] - Door Electronics Passenger

[53] - Parking Brake

[55] - Headlight Aim Control

  • Vehicles with factory installed Xenon headlights that do NOT use a diagnostic capable 55-Headlight Range control module use the link under [09] - Central Electronics instead.

[56] - Radio (Analog)

[57] - TV-Tuner

[5C] - Lane Maintenance Assist

[62] - Door Electronics Rear Left

[65] - Tire Pressure Monitoring

[69] - Trailer

[6C] - Back-Up Camera

[72] - Door Electronics Rear Right

[76] - Parking Aid

[77] - Telephone

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