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Re: 5000/100/200 Heater Control valves

     Dave is right, Run fast!!  Two years ago on a hot California day 
     with the AC on and the radio too loud my heater control value 
     blew while doing 80 down the 405.  The cheap $35 plastic valve 
     ended up costing me $2000 to have the head rebuilt because the 
     engine over heated.  So everyone, go replace your heater control 
     valve now!!!
     '87 5KCSTQ

If yer heater control valve (directly in front of steering rack) is over 6 
years old and real yellow, run - don't walk to the dealer and get a 
replacement. Keep yer old one as a spare. Had one blow today and all coolant 
exited within about 1 minute - thereby NOT showing on the temp guage. Yer 
only warning will be the overheat/low level warning.
Of course, I always run synthetic to provide the extra protection in these 
cases - even though I was stuck inna turn lane and had to wait a bit to get 
parked, no apparent damage.
Dealer cost - 35.00, avail mail order/discounted at about 18.00...
********************************AUDI FAN***********************************
                                   EMCM(SW) Dave Head  
87 5KCStq 194K miles                1.7 bar 
    qcusa #3442                 Maitland, Florida