Audi TT MK2 S line

Coding

Seat belt reminder deactivation

Control unit 17 (Dashboard) [8J0920930H]
Coding (07)
Set the penultimate (second from behind) number to 0:
xxxxx5x → xxxxx0x

Possible values:
0 - No seat belt warning
1 - Europe Old excl. passenger
2 - Europe New excl. passenger
3 - NAR Old excl. passenger
4 - Europe Old incl. passenger
5 - Europe New incl. passenger
6 - NAR Old incl. passenger
7 - NAR New excl. passenger
8 - NAR New incl. passenger

Europe Old = Permanent optical, acoustic for 91s
Europe New = ?
NAR = North American Region (USA and Canada)
NAR Old = Optical and acoustic warning for 6s
NAR New = Permanent optical, acoustic every 30s

alternatively

Control unit 17 (Dashboard)
Adaptation (10)
Seat Belt Warning
New value: Off

RNS-E

It’s about RNS-E Generation 2, from 2009/2010, part number ends with 193. Externally, the RNS-E Gen2 can be distinguished by chrome knobs and the 2nd button on the left (Gen1/192 – CD/TV, Gen2/193 – Media).

RNS-E Optical Parking System (OPS) [TO TEST]

PDC: 8 Channel (front and rear) with the Part Number: xxx xxx 475

Control unit 37 (Navigation)
Coding (07)
Add 2 to the third number:
xx0xxxx → xx2xxxx
xx1xxxx → xx3xxxx

Control unit 10 (Parking Assistance)
Long coding (07)
Security access (16): 71679
Byte 00
Bit 4 (Optical illustration) → Activate ✓

RNS-E Speedlimit

Control unit 37 (Navigation)
Adaptation (10)
Channel 017
Adjust value to 2
0 - No option | 1 - Option off | 2 - Option on

RNS-E Coding

Control unit 56 (Radio)
Coding (07)
0619755 [Default]

0X00000 (Start screen):
1 - Lamborghini
2 - Audi A3
3 - Audi A4
4 - Audi A4 Cabriolet
5 - Audi A6
6 - Audi TT [Default]
7 - Audi R8

00X0000:
0 - Front treble speaker diagnosis active
1 - Front treble speaker diagnosis inactive [Default]
2 - Front treble speaker diagnosis active and Optical parking aid
3 - Front treble speaker diagnosis inactive and Optical parking aid

000X000 (Sound characteristic):
0 - Linear sound characteristic
1 - Audi A4/Seat Exeo
2 - Audi A6
3 - Audi A4 Cabriolet
4 - Audi TT
5 - Audi A3
9 - Sound system [Default: Bose]

0000X00 (Telephone):
1 - Not installed
2 - Without comfort functionality (Temic)
3 - Aftermarket retrofit
4 - Without comfort functionality (Nokia)
5 - Telematik Europa
6 - Telematik North America
7 - With comfort functionality [Default]

00000X0 (Equipment):
1 - Standard Value
2 - Audi Music Interface (AMI/PR-UF7)
3 - Satellite Radio (SIRIUS/XM)
4 - AMI and Satellite Radio
5 - Analog Input (AUX/PR-UF0/UF1/UF2) [Default]
6 - AMI and AUX
7 - Satellite Radio and AUX
8 - AMI, Satellite Radio and AUX

000000X (Equipment):
1 - Standard Value
2 - TV-Tuner (PR-QV1/QV9)
3 - CD-Changer or iPod/USB-Interface (PR-7A2/7A5/UF1/UF2)
4 - TV-Tuner and CD-Changer
5 - Multi-Function-Steering Wheel (MFSW) [Default]
6 - TV-Tuner and MFSW
7 - CD-Changer and MFSW
8 - TV-Tuner, CD-Changer and MFSW

RNS-E Adaptation

Control unit 56 (Radio)
Adaptation (10)

Channel 001 (Tire Circumference):
Adapted in mm

Channel 002 (Wheel Pulse):
0 - Self calibration
8 - Audi A6
43 - Audi A3/Audi TT
45 - Audi A4

Channel 003 (Screen Language):
0 - German
1 - English (UK)
2 - French
3 - Italian
5 - Spanish
6 - Portuguese
7 - English (US)

Channel 004 (Back-Up Camera):
0 - Back-Up Camera not installed
2 - Back-Up Camera installed

Channel 005 (TV in motion):
0 - Off
1 - Up to 5 km/h
250 - Unlimited (Unlocked units)

Channel 008 (GALA):
000 - GALA off
001 - Charakteristics 1
002 - Charakteristics 2
003 - Charakteristics 3
004 - Charakteristics 4
005 - Charakteristics 5
255 - GALA via microphone (Bose AudioPilot)

Channel 010 (Region):
0 - Northern hemisphere (Europe/North America)
1 - Southern hemisphere (Australia/South America)
2 - Southern hemisphere (South Africa)

Channel 011 (Speech Recognition Language):
0 - German
1 - English
2 - French
3 - Italian
5 - Spanish

Channel 018 (Start Screen):
0 - Default
1 - Audi S3 (SW EU 500+ only)
2 - Audi S4 (SW EU 500+ only)
3 - Audi RS4 (SW EU 500+ only)
4 - Audi TT
5 - Audi R8
6 - Seat Exeo
7 - Audi TT S
8 - Audi TT RS
9 - Audi R8 GT

Channel 065 (Read Test)

Channel 066 (Self Test)

Channel 067 (Eject CD/DVD):
000 - Default/Eject-Button enabled
001 - Eject CD/DVD
255 - Eject button disabled/locked

Channel 068 (Screen Test):
0 - No Test Picture
1 - Test Picture: Red
2 - Test Picture: Green
3 - Test Picture: Blue
4 - Test Picture: White
5 - Test Picture: Black
6 - Test Picture: Checkerboard
7 - Test Picture: Checkerboard (inverted)
8 - Test Picture: 64 Gray Scales (vertical Bars)
9 - Test Picture: Special

Channel 069 (Display Mechanism):
000 - Closed
001 - Open
200 - Half open (blocked)
255 - Unknown position

Channel 070 (Display Brightness):
0 - Off
1 - 20%
2 - 40%
3 - 60%
4 - 80%
5 - 100%

Channel 097 (Downgrade Software):
0 - Normal operation, unit performs updates only
1 - Force downgrade to older version, requires older DVD/CD

Channel 111 (System Reset):
1 - Factory reset

Channel 136 (Voice commands/Driver Position):
00005 - LHD (SW 500+)
00013 - RHD (SW 500+)
02632 - RHD (SW <500)
03226 - LHD (SW <500)

RNS-E Engineering Mode

1. Press the [NAV] button
2. Press and hold the upper left MMI button for 5 seconds
3. Press and hold the upper right MMI button for 5 seconds

REV Can-Message

RNS-E Reset

Press and hold [RADIO] and [SETUP] for about 30 seconds.

Light bulbs

Front

The whole head light should be removed from the car while replacing the bulbs.

7 – D1S 35W Low/High Beam
8 – H21W Turn signal
10 – P21W [BA15s] Daytime Running Light
12 – H6W [BAX9s] Parking light

Rear

The whole tail light must be removed from the car in order to replace the bulbs.

9 – P21W Tail light, Brake light
10 – W16W [T15] Turn signal
11 – W16W [T15] Reversing light

Interior

3 – W5W [T10] Front ceiling light
11 – C5W 36mm Make-up mirror
14 – W5W [T10] Glove compartment light
18 – W5W [T10] Luggage compartment light
22 – W5W [T10] Door warning light
28 – 4E0 919 063 Door handle light diode
29 – 8J0 947 409 A Footwell light

Door Projectors

Wheels

LED DRL Retrofit

As my car already had Xenon headlights, the only thing I missed were LED daytime running lights, like in the TT RS. So I decided to buy these lights and try to simply replace them – plug and play. On this page you can also find how to choose the right serial number for the lights, just scroll up a bit. For me, it looked like this:
8J0 941 029/030 D → 8J0 941 003/004 AJ/Q

How the lights work

After a detailed analysis of the connectors, they turned out to be identical – Audi 14 Pin Connector with the part number 1J0973737.

After the headlights arrived, I immediately tested the LEDs. You can do this as shown in the picture. Note that the previous image is from the connector pins, not the pins on the headlight itself.

After connecting the ground to Pin 7 and +12V to Pin 10 and Pin 12, this is what it looks like.

Compatibility

These lights can be purchased from Audi under the part number 8J1052180, although you end up with 8J0 941 003/004 AJ, so you can also get them used.

The problem was the statement for the adapter (8J0051444): An adapter is also required for vehicles from calendar week 22/2009 to calendar week 22/2010. In short, depending on the Central Electrics (09) module:
8P0 907 063 B → adapter is required!
8P0 907 063 AB → no adapter required

Coding

Thanks to this forum, I also found all the necessary coding.

Control unit 09 (Central Electrics/Zentralelektrik)
Long coding (07)
Byte 18
Hex: 59 (Xenon and LED DRL RoW)
Byte 27
Bit 2 (LED-DRL module for parking light and DRL/LED-TFL Modul erfüllt Doppelfunktion Standlicht & TFL) → Active ✓

Continues in summer 2023, hope it won’t be as complicated as this, stay tuned.