auxilary fan acting up

[Phil Rose]

My recollection is that it's the only sensor (switch) in/on the 
radiator. Location is immediately below the lower radiator hose. Easy 
to see, but hard to get at. The relay is presumably #2 and/or #3 in 
the fuse box. They are identical and both labelled as being for "fan".

Phil


At 11:58 AM -0700 8/15/12, robert weinberg wrote:
>Thank Tony!
>
>to confirm is the below fan switch the same as the radiator temp 
>sensor? or is that another part?
>
>i'm assuming it's a different part?
>
>Robby
>
>
>
>From: Tony Hoffman <auditony at gmail.com>
>To: robert weinberg <centaurus3200 at yahoo.com>
>Cc: Phil Rose <pjrose at frontiernet.net>; S P 
><mysuperpersonalmail at gmail.com>; Dave Johnson <944go at comcast.net>; 
>200q20V mailing list <200q20v at audifans.com>
>Sent: Wednesday, August 15, 2012 11:05 AM
>Subject: Re: auxilary fan acting up
>
>
>Should be the fifth relay down.
>
>That is the correct fan switch. Might check teh connections at the 
>fan switch, and also check out where your relay plugs in. I just 
>replaced a fusebox on a customers 200 since his fan relay melted, 
>and took out the fusebox with it :(
>
>Glad to hear it's been running right.
>
>Tony
>
>On Wed, Aug 15, 2012 at 12:59 PM, robert weinberg 
><<mailto:centaurus3200 at yahoo.com>centaurus3200 at yahoo.com> wrote:
>
>Hi Phil,
>
>unfortunately it's definitely your latter scenario. it's a new 
>phenomenon as well.
>
>could it be the relay or the thermal switch?
>
>which relay is the correct one?:
>http://www.autohausaz.com/search/product.aspx?sid=glgwwxybvewzgczqbpbh1nvk&makeid=800002@Audi&modelid=1007288@200%20QUATTRO%20TURBO&year=1991&cid=18@Electrical%20%26%20Vacuum&gid=3604@Relay
>
>
>is this the switch you were saying was hard to replace but might be 
>the culprit?
>
><https://www.autohausaz.com/search/product.aspx?sid=bef0brnfxwwugcfd1eli3ovv&makeid=800002@Audi&modelid=1007288@200%20QUATTRO%20TURBO&year=1991&cid=16@Cooling%20System&gid=4768@Radiator/Auxiliary%20Fan%20Switch>https://www.autohausaz.com/search/product.aspx?sid=bef0brnfxwwugcfd1eli3ovv&makeid=800002@Audi&modelid=1007288@200%20QUATTRO%20TURBO&year=1991&cid=16@Cooling%20System&gid=4768@Radiator/Auxiliary%20Fan%20Switch
>on the bright side, my friend swapped the rack with a jorgen 
>rebuild. and if you remember me complaining sometimes i felt i 
>wasn't getting the full boost benefit of the car's dyno tuned 034 
>stage 1 chip? my friend also replaced the cap, rotor, wires and 
>plugs. the plugs have been replaced before, but apparently the cap, 
>rotor and wires WERE ORIGINAL! car has 119k on the clock.
>
>the boost regularly throws you through the back window when you stab 
>the gas now ;-)
>
>see ya,
>Robby


-- 

Phil Rose.....Rochester, NY USA
'06 A3q 3.2 V6 (20K, silver)
'91 200q	(165K, Lago blue)
Gone to Audi Valhalla:
'91 200q   (Tornado red)
'89 100 (Bamboo gold)