Engine |
ECU software upgrade |
APR EMCS Stage 1 with 4 programs
(stock, 91, 93 and 100 AKI octane),
valet mode, security lockout, anti-theft and fault-code erase,
selectable from the cruise control stalk switches
93 octane program: 318hp @ 6500rpm, 382 ft-lb @ 2400rpm
[horsepower/torque graph] |
Diverter valves |
Audi 06A 145 710 N (Kayser 3.023.348) |
After-run auxiliary coolant pump thermoswitch |
Audi 021 919 369, (93°C/88°C)
See this Audiworld tech article for details |
Coolant thermostat housing |
Audi 078 121 121 J, all-aluminum with stainless steel inserts |
Vacuum "spider" hose with check valve |
Audi 078 103 235 R, new improved version |
Motor oil |
Mobil-1 0W-40 European car formula synthetic |
Center engine cover |
Audi 078 103 127 AE
C5 Allroad 2.7T version with sculpted 4-ring emblem and "biturbo" painted red |
Engine cover over ABS unit and hydraulic fluid reservoir |
European V5 Passat 3B0 119 487 C Modified to fit the S4 |
Brake System |
Disc brakes |
Front brake discs: ECS Tuning GEOMET 320mm vented and slotted
Front brake pads: Mintex red box MDB2120D
Rear brake discs: Stop-Tech 256mm vented and slotted
Rear brake pads: EBC Red Stuff ceramic
Painted brake calipers (red) with "S" emblems |
Wheels/Suspension/Chassis |
Wheels |
Audi 8Jx18 ET45 5x112mm "Avus" from B6 S4, 8E0 601 025 L |
Wheel spacers |
Hubcentric 57.1mm bore, 5x112mm
Front: 10mm
Rear: 15mm
Used with matching longer wheel bolts |
Tires |
Continental ExtremeContact Sport 235/40ZR18 95Y XL |
Springs and dampers |
Solo-Werks S1 adjustable coilovers, front and rear, S1AU004 |
Rear anti-roll bar |
034motorsport solid rear bar 034-402-1001 |
Rear subframe reinforcement |
034motorsport billet aluminum rear subframe reinforcement kit 034-402-7002 |
Heating/Ventilation/Air Conditioning |
Heater core |
Passat all-metal, 8D1 819 031 C |
Interior/Instrumentation |
Steering wheel |
Custom made flat-bottom, thick-rimmed sport steering wheel with smooth and perforated leather sections, red stripe and stitching and "S4" emblem |
Steering wheel airbag |
Audi 8N0 880 201 (from 2000 Audi TT with "alu-optik" trim) Inflater replaced Nov 16, 2021 (Audi recall campaign 69CJ, 8D0 898 201 A) |
Interior door handles |
RS4-look: exchanged stock chrome handles with matt-black power-coated version from Robert Pleasanton |
Rear view mirror |
Audi 8E0 857 511 A 01C auto-dimming mirror with digital compass and on/off switch |
Instrument cluster |
Driver Information System (DIS) display replaced with ColorMFA, firmware can be updated via USB port |
Tire pressure monitoring system |
Displays each tire's pressure and temperature, plus battery voltage,
Selectable metric or imperial units
Color LCD display unit plugs into cigarette lighter port on center console,
Audible warning if readings go outside of preset limits,
Pressure/temperature sensors located at each wheel, as special tire valve stem caps |
Courtesy puddle lights |
Retrofit at the bottom of each door panel,
LED powered light modules that cast a "S4" logo
halo on the ground when the door is open
Wire connector: 893 971 632 |
Interior lighting upgrade |
Overhead interior lights: 42mm festoon-style white LED bulbs
Map lights, front and rear: BA9s white LED bulbs
Footwell lights: 194 wedge-style white LED bulbs
Glove box light: 36mm festoon-style white LED bulb
Vanity mirror lights: 36mm festoon-style white LED bulbs
Luggage compartment lights: 36mm festoon-style white LED bulbs |
Exterior |
Front grille |
Audi RS4 "honeycomb" grille with matte aluminum trim, 8D0 853 651 T
Affixed with "S4" emblem |
Side mirror housings |
Audi sport package aluminum mirror housings
Left: 8D1 858 499 A 2ZZ
Right: 8D1 858 500 A 2ZZ |
Electrical system |
Headlights |
Audi/Valeo European-specification HID headlight housings
Left: 8D0 941 029 AN
Right: 8D0 941 030 AN
Low beam bulbs: D2S Osram Xenarc 66240CBI HID
High beam bulbs: H7 high power white LED bulbs with braided copper heat sinks (6500K, 16000 lumens)
City light bulbs: White 13-LED BA9s
Turn signal/parking lights: 3157 switchback amber/white dual LED bulbs
Load resistors |
Front fog lights |
H7 white LED bulbs |
Daylight running lights |
White LED array modules mounted to bumper grilles,
Each module has 6 LEDs (3 narrow beam, 3 wide beam),
Electronic control unit to turn on DRLs automatically when
the engine is running |
Side marker lights |
194 wedge-style amber LED bulbs |
Tail lights |
EPP AZAL02 LED tail light housings, modified:
Brake/tail lights: built-in red LED array
Backup light: High intensity 1156 white LED bulb
Fog light: High intensity 1156 red LED bulb
Turn signal: built-in red LED array
Load resistors |
Center-mount brake lights |
High intensity 194 wedge-style red LEDs, 4 pieces |
Licence plate lights |
Ziza T10W37KT-14 36mm festoon-style white LED |
Fog light control relay |
Audi 8D0 907 701 A
Modified to allow fog lights to be turned on independent of headlights |
Battery |
DieHard Gold 94RH7 800CCA |
Audio/Navigation/Phone/Rear View Camera |
Head unit |
Audi "Navigation plus" RNS-E mk2 with color LED display, 8P0 035 193 F
Audi A3 8P unit, retrofitted into the S4 8D
Custom front faceplate for perfect fit
2x screen resolution and faster processor than RNS-E mk1
Multimedia Interface (MMI) style controls
FM/AM radio
CD player
SD card MP3 player (2 slots, SDHC/SDxC* compatible)
Name directory
GPS navigation with map and voice guidance
DVD or SDHC/SDxC card* based maps
Supplementary audio and navigation information shown on the
instrument cluster's DIS (ColorMFA) screen
TMC (Traffic Messaging Channel) receiver for info and navigation
External CD changer or Phatnoise Phatbox support (Phatbox installed)
Bluetooth hands-free telephone support, with external module
Satellite radio (Sirius/XM) support, with external module (not installed)
AUX audio and video input, on rear panel connector (Bluetooth audio receiver module installed)
Rear view camera support, when in reverse gear
Interface to the in-car infotainment CAN bus
Custom startup splash screen*
SD card playback album cover art*
SD card playback scrolling track name on DIS*
many other features*
Currently running North America firmware version 0310 "Fir" from
rnse.pcbbc.co.uk
(* asterisk items are provided by the pcbbc firmware update and optional Feature Pack) |
Wiring adapters |
Kufatec 33405-8 Quadlock main adapter (modified)
Kufatec 33403 diversity radio antenna adapter |
GPS antenna |
Kufatec 33820 active antenna
mounted inside dashboard, above glove box |
V-Signal/RFSL CAN bus module |
Arduino®-based controller with CAN bus shield
Converts V-Signal (vehicle speed) and RFSL (reverse gear selected) signals from the car into CAN messages
Needed for newer production RNS-E mk2 units for proper navigation and rear view camera functionality |
Phatnoise Phatbox |
Digital audio player installed in lieu of a CD changer in the luggage compartment, controlled via RNS-E with voice guidance.
Phatbox was hacked to allow the use of "non-approved" disk drives
DMS hard drive cartridge, modified with 500GB SSD for music storage
Music library managed on a PC with special software |
Bluetooth audio receiver |
Small module that plugs into the RNS-E rear panel AUX input port
Allows streaming music from mobile phone, tablet or laptop |
Bluetooth telephone module |
Bluetooth phone module: 8P0 862 335 R
Plug-in antenna: 8P0 035 503 E
Enables hands-free mobile phone functionality on the RNS-E
Mounted in luggage compartment, below CD changer slot, with Audi 4D0 919 892 enclosure and custom Audi logo front panel
Custom wired to the car's telephone pre-wiring, diagnostic K-line and the infotainment CAN bus |
Power amplifier |
Bose amplifier upgrade
Audi D2 A8/S8 200W amplifier, 4D0 035 225
installed in place of the stock 80W unit
See this Audizine post for details |
Diversity radio antenna switcher/booster |
Audi 4D0 035 530 E (update from 4D0 035 530 C) |
Rear View Camera (RVC) system |
Displays rear view on RNS-E screen when in reverse gear
Kufatec 36492-1 (including 36461 interface module and 35542 wiring harness)
Rear view camera with guide lines (mounted on trunklid)
Composite video transmitter and receiver
Custom wiring |
Miscellaneous |
Key |
Audi B7-style remote control folding key fob |