Question about 1999 Volkswagen New Jetta
Check for a switch at lower part of rad. Should see a wire harness & plug on a sensor at bottom of rad. This sensor/switch also operates fan on/off according to coolant temperature. You may need to disconnect battery to get at it safely.
Posted on Jan 16, 2009
Hi - I don't know the answer off hand but there is just a chance you could do a Sherlock Holmes job yourself, because many of the relays have unique pin layouts and cannot fit into the wrong place. The numbers may be misleading - on my Sharan some of the relays have numbers which are sideways or upside down when correctly installed! If you find that one relay will go into more than one socket, or more than one relay will go into one socket then you will need further help, but if there is, say, a five pin relay and only one five pin socket, it's got to be right, hasn't it?
If these suggestions do help you solve the problem, please give my reply a rating to help others judge my knowledge / guessing skills. If they do not, please add a comment with more details so I can try to help you further. Cheers, D
Posted on Jul 01, 2008
they will only fit in there one or two ways just match em up to there spot on the board, most of them are the same relay anyway -jeff
Posted on Sep 01, 2008
SOURCE: fan only works on high speed
If you are talking about the early 99 which is the MK3 style then I can point to the switch that you are turning on the dash. Poor design which will melt the contacts and cause overheating. You can remove the button by pushing a tab on the bottom and look at the contacts. Turn the switch and push on the copper contacts and see if you get any other speed. Watch out the contacts get hot. The other choice would be the resistor pack located in the heater assembly behind the glove box.
Posted on Mar 11, 2009
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