Re: MFA swap woes

[Jean-Claude Desinor <desinor@sympatico.ca>]

  I am contemplating an MFA transplant from an 86 to an 84, have not
opened anything yet - but I helped someone with the MFA on an 86 this
morning: it was not functioning at all. Turns out the light blue wire
from the cluster to the connector had broken.

  By the way, whenever I open an old connector or switch, I dab it
liberally with dielectric grease. That helps clean the contacts and
prevent them from corroding or tarnishing. You might want to try some
once you dissassemble the stalk.

	Jean-Claude
	84 8v
	96 Jetta GLS

"T. Reed" a écrit :
> 
> Hey list,
> 
> I ran across an instrument cluster from an '86 GTI (120mph/7k/MFA) and
> decided to try swapping the MFA into my 16v Scirocco cluster. I got both
> clusters completely disassembled, THEN found out that the tachometers had
> different locations for screw holes in the gauge faces and the 8k tach
> won't fit with the MFA circuit board in the way. I sat there staring
> at it for a good half hour but I couldn't come up with any good solutions.
> All I could think of was to try to fab some tiny metal bracket that would
> increase the wingspan of the tiny plastic piece that the gauge face mounts
> to. Either that or gluing the gauge face directly to the gauge itself
> (bad)... But first, I thought I'd consult the list and see if I have any
> better options... - I definately learned my lesson today: if you're going
> to do an MFA swap, just get a whole new cluster. The extra money will be
> worth it to save the headaches and misery.
> 
> Also, if someone has done this before, what parts did you keep from what
> cluster? Here's what I'm thinking (and hoping will work when finished):
> 
> >From 140mph/8k/no mfa cluster:         From 120mph/7k/mfa cluster:
> clear plastic on front of cluster       black bezel with mfa symbols
> 140mph speedo                           mfa circuit board
> 8k tach (hopefully.. grr)               mfa lcd display
> gas gauge                               vacuum sensor
> temperature gauge                       speed sensor
> upshit light                            flexible circuit board
> voltage regulator
> screws
> backlight bulbs
> leds
> 
> Basically, I'm trying to keep as much of my 16v cluster as possible, since
> its in excellent shape and I know all the gauges work already. What I
> don't know about is electrical compatibility with the GTI cluster - can I
> just plug it in and have it work (not including the wiring for the oil
> temp and air temp senders and the mfa switch) or will I have to re-arrange
> wires in the black and white connectors at the bottom of the cluster?
> Hopefully Bentley will have the answer..
> 
> One more question for people who have MFAs - is there a common cause for
> why the button on the end of the mfa stalk stops working? The switch I got
> with the cluster has this funky problem where it only responds if you hit
> it in exactly the right spot from the right angle. It seems to me like
> corroded contacts inside but I just hope I can disassemble it enough to
> get to them..
> 
> Thanks for any help,
> 
> -Toby
> 
> --
> '87 16v - no mfa... yet.
> 
> --
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