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Do they not do one for the facelift models? Would love one of these!!
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Facelift yes, but NOT 'can bus only' I think.
I've got the EFU in my 2001 facelift A3 TQ
It's a kinda nifty thing, and you may program alarms if you want to.
In my setup I have an silent alarm (means; just show the value of the alarmed sensor) for oiltemp under 80 C, and a *beeeeep* alarm for oiltemps over 120 C, and Boost set as 'favorite'
With this setup the display automatically displays oiltemp until the car is 'ready for some action', then it shows boost as default (pushing the button*1 and it'll cycle all sensors) as long as the oil temp is 'ok' - if the oil temp gets to high a *beeep* alarm goes off and the oil temp is displayed.
*1 I modified the original FIS button; now I can cycle the EFU with the upper button and cycle standard FIS information with the lower.
I will add more sensors to the module later - now it'll only display boost, oiltemp, voltage and speed (from gala).