'93 Audi 90s number of fan relays.
 

My fan only runs on high speed so I checked the fan relays in the fuse box. I realized two of them missing.
The 2. (radiator fan) and 11. (Relay for fan speed 1) relays.
I couldn't find any information on the net what the number for these relays. I have tried many parts stores but they don't know either.

Anyone could help me out on this?

THX

Bardos

RE: '93 Audi 90s number of fan relays.
 

change the resistor

[IMG]local://upfiles/12092/3D9AA4E44E504DE58CF449AC4256AE87.jpg[/IMG]

RE: '93 Audi 90s number of fan relays.
 

most likely your radiator temp switch is bad ... it usually fails safe leaving only the high speed always on .... is your fan always on BTW?

RE: '93 Audi 90s number of fan relays.
 

No the fans only run on high speed when the gauge already at the middle.

I checked the cabel of the temp switch. I shorted the pins. First the low speed fan did nothing,then I switched the relay with the AC relay and the fan worked (at least when I shorted the pins).
I'm gonna leave it this way now and test it tomorrow.
I still don't now if I miss one of the relays in the fusebox or not.
There is a place for fan relay (speed 1) at 11. relay under the AC relay. I don't know if that used or not. I couldn't find any info about that.

Thanks .

Dave,

what relay is that? is it in the fusebox numered 214?

RE: '93 Audi 90s number of fan relays.
 

there is a bunch of info here http://www.sjmautotechnik.com/troubl...g/cooling.html
1 of the fan relays is easy to get to the other is in the vaery far corner ( the very last one i think) and the 214 is on both i also think ... I'll look on mine and get back to you

RE: '93 Audi 90s number of fan relays.
 

Thanks

I know that web side,but I will read over again I might missed something.
Thanks for your help

RE: '93 Audi 90s number of fan relays.
 

keep posting if you need more help

RE: '93 Audi 90s number of fan relays.
 

right now i use the car with the AC turned on in the city. no overheating so far.

It must be the temp switch, may be today I can get one.

RE: '93 Audi 90s number of fan relays.
 

when you turn the ignition on (car not started) does the fan come on right away?

RE: '93 Audi 90s number of fan relays.
 

are we talking engine coolant fan or heater fan?? if heater fan then what I said is the problem