bhtooefr
TDIClub Enthusiast, ToofTek Inventor
According to ETKA, those are actually Mk6 Jetta wheels, for what it's worth.
very good info..The Jetta Clasico in Mexico is still the Mk IV style but now has a Mark 6 wheel, so one may presume their airbag is compatible:
MY2012 Multifunction version (different airbag shape of course):
Weird how they have now removed the rheostat for the dashlights though.
I never did a PDF. This thread documents most of the modification.Difference between 451 and 452:
451 = 1j0 907 487A
452 = 1j0 907 487B or D (new one)
Difference is wiring. 451 is for 2002+ cars and uses CAN for the Cruise and steering. It doesn’t have the REM wire from the green connector on the radio, and it doesn’t need the S-cont (switched 12V power) or the ILLUM wire. It has the two twisted orange/brown wires for CAN though.
Here is a pic of the 451 wiring. Notice the twisted pair of orange/brown wires on pins 1 and 3. These are for CAN. Also notice that there are no wires in pins 5, 12, or 15. In order for 452 to work you need those wires.
(Thanks to GTi_1.8Turbo for the pic)
452 is for 1999.5 – 2001 cars and uses the REM wire at pin 5, switched 12V at pin 12, and Illumination wire at pin 15 of its connector You can probably make the 452 work, but you’ll have to add these three wires in addition to all the other wires.
As it happens, I have an extra 451 I picked up at a local junkyard recently. This guy kleinersforeigncar@gmail.com also has one. Let me know if anyone needs one.
Also, this is a great thread with pictures showing the relays
http://www.vwnavi.com/vwnavi/forums/showthread.php?t=103&highlight=multifunction+version
Wes
UPDATE: I now have Wiring Diagrams for adding the MF steering...
T18c Pin - color/stripe - function
1 - orange/brown - CAN Low (in 2002+ cars that use 451 relay and CAN)
2 - - no connection
3 - orange/brown - CAN High (in 2002+ cars that use 451 relay and CAN)
4 - black/white - Cruise related, clip on to wire from T10s/4 or T10s/7 from signal stalk, or tap-in to T10e/3 (connector in water-tight box)
5 - lavender - REM wire for remote control of radio, to T20/11 "green" connector behind radio head unit, not needed when using 451 and CAN
6 - green/purple - K-wire (diagnostic wire) T16/7 in instrument panel wiring harness, (OBDII port), below inst. panel, left
7 - - no connection
8 - red/yellow - Cruise - tap-in to T10e/2 in water tight box
9 - brown/yellow - connect to horn relay, S1/6 (bottom left on relay panel, marked "53"), cut wire that is already connected there (it currently goes to T5b/3 on steering wheel) leaving a stub of a few inches from S1/6, and crimp T18c/9 to the stub of S1/6
10- brown - Ground, 1 in instrument panel wiring harness (Brown wires above clutch)
11- - no connection
12- black/red - 12V switched, connect to Fuse 5 in fuse panel (7.5 Amps) When connecting, you should splice this T18c/12 wire AND the wire from T5b/3 that you cut from S1/6 above together into the wire from Fuse 5. Therefore 12V switched from Fuse 5 should go to the middle of T5b/3 on cancelling ring AS WELL AS pin 12 on T18c-- T18c/12 does NOT need this w/ CAN (451), BUT T5b/3 STILL DOES!
13- red/green - 12V power, connect to fuse 40 in the fuse-panel but if you don't do that, you should use an in-line fuse
14- red/grey - Cruise - tap-in to T10e/9 in water tight box
15- grey/blue - ILLUM wire - tap in to T3c/3 in instrument panel light dimmer switch... Not needed w/ CAN (451)
16- blue - Cruise - tap-in to T10e/1 in water tight box
17- - no connection
18- yellow - Horn, T5b/1 on cancelling ring (at steering wheel) you will probably have to add this wire, it is on the far right of the yellow T5B/1 connector on the steering column as you are looking at the steering column.
Some more info:
451 is the newer relay that you use with 2002+ cars with CAN Bus. 452 is the older relay that you use with 1999, 2000, and 2001 cars that use 3LB (12V Switched, Illumination, and the REM wire). T18c is the connector (pictured below) for the 451 or 452 relay in the relay panel. T5b is the connector on the cancelling ring where the steering wheel attaches. T10s is in turn-signal stalk, T10e is in white Water-tight box in the plenum chamber on the driver's side. I got to it by laying the driver's seat all the way back and lying upside down with my head under the dash and my legs on the headrest. It was a pain in the butt (and the lower back), but I'd rather do that than removing my windshield cowling to access the white water-tight box from the top-side. I used gel-filled wire-taps to "tap in" to the wires in T10e, rather than cutting them and re-crimping.
Wes
I've never tried this, but supposedly you can change from Can to non-can by coding. See this article. However, you can get a 452 relay on ebay for less than $10 so that may be an easier alternative.Hi guys, I'm putting a multi function steering wheel into my 2000 TDI jetta. Everything I have read indicated that I need the 452 relay due to lack of CAN bus on my car. I have an aftermarket radio in the car so I only need the cruise and horn functions. I have a 451 relay and access to VAG-Com. Is there any way possible to get the 451 relay to work in my car?
Negative, Ghostrider. If the car didn't come with MFSW, none of the relevant wiring will be present. Non-MFSW cars have the CC wiring routed to the signal stalk, horn is routed to the clockspring. MFSW cars have those things routed to the MFSW relay.have been reading this information for MFSW (Multi Function Steering Wheel) swap numerous times.
I can not see that this (my) question has been touched upon:
BACKGROUND:
as per a link I discovered - there where THREE trim levels for 2005 Jetta
GL
GLS
GLI
on "GLS" MFSW was an option - part of the "Leather Package"
QUESTION:
A:
With only the following items in hand:
- installed OEM Double DIN head unit
- MFSW (with air bag)
- turn signal stalk with ONLY on/off cruise control
Would a retrofit of a MK4 MFSW in my 2005 mk4 TDI Jetta GLS wagon WITHOUT MFSW, be "plug and play"?
Theoretically, yes, you could - the CC lines are just switched +12v inputs to the ECU (DBW cars) or CC module (DBC cars.)Is there a way to have a Cruise control in wheel and in stalk ? Or I need to choose stalk or wheel with CC ?
---------------Negative, Ghostrider. If the car didn't come with MFSW, none of the relevant wiring will be present. Non-MFSW cars have the CC wiring routed to the signal stalk, horn is routed to the clockspring. MFSW cars have those things routed to the MFSW relay.
Theoretically, yes, you could - the CC lines are just switched +12v inputs to the ECU (DBW cars) or CC module (DBC cars.)
But! I'd probably want to put a diode on each of the CC lines (from FMSW relay to ECU/CC module), to protect the MFSW relay from having +12v back-fed into the CC outputs there.
{I'm not responsible if you fry the MFSW relay doing this. }