The answer to all fan problems
If your fans work and your tired of dealing with Audi’s policy of making simple things complex and easy to break then I have the answer. Painless wiring offers an adjustable fan controller. I ordered mine after a large service I preformed. My cars temp light was blinking intermittently. I had never had any problems with it up till this point. I decided that the worst thing is that the impeller on the water pump was freewheeling on the shaft. So I just went ahead and did a full timing belt service, and while I was at it I replaced the hydraulic lifters because they were making noise even when full oil pressure was reached and I was driving down the road. After I got the car all back together. The light still came on. I had no clue what was causing it. The light would only come on if there was air in the coolant lines or if the car was overheating. I knew the day I got my car that the fans never kicked on. Three relays were missing, and when I put them back still nothing. The amazing part is I had my car for two years or so, in a verity of conditions, including long highway trips over to areas with very high temps. It had never overheated even at idle for extended stints.
For some reason it had all the sudden become a problem. Because I bought my car with the fans never working, I thought that the temps I was seeing on the gauge were normal. It was always within the two bold marks normally hovering around ½. After working on the car for many hours with unrelated maintenance I just decided to get a few things on my list checked off. I moved the battery to the spare tire compartment, and put in a separate standalone fan controller.
The installation of the controller was very simple. It has a metal probe I positioned at the top of the radiator and put a piece of foam in between it and one of the two top radiator mounting brackets. You can shove it in between the fins of the radiator, but I didn’t want to mess with that. The wiring is simple, place the thermal sensor on the RAD, hook up the black/white fan power wires, and ground the orange. For the power lead you can hook it up to any 12volt source that is controlled by the ignition. This is to prevent the fans from running with the key off. It does not draw power from this lead only helps connect the poles within the relay. I chose to hook this up to consistent power so that the fans may run even while the car is off to help with cool down. It comes with a large 40 amp fuse and may be ran with any fan setup as long as it does not exceed a 40 amp draw. Both of my fans are connected and run at full power whenever the temp reaches the appropriate level. The knob on the unit allows a for a very wide temperature setting. If you know your stuff you could even wire in a switch for the drivers compartment to bypass the controller to cool things down before or after a run.
My experience with the unit has been great. I set the dial ½ way on the controller and it comes on at the first bold mark on the temp gauge. My temps are controlled very well now, oil temps have dropped along with the over all operating temp. I have not had any problems with it being able to turn on when ever, no battery run down. It is loud though. I was walking into the mall the other day, and when I was almost at the entrance a fair distance away I head the fans kick on, sounded like a jet. If your standing at the drivers door and it kicks on after a hard run you can feel it cool the engine and it will heat your garage up very quickly. On a side note it will not turn on if it is too cold, I thought I had a defective controller because if you turn it all the way counterclockwise its supposed to kick the fans on.
It has a simple to follow wiring diagram. It cost me $63 USD for the kit form summit racing. It got here in a few days, I prefer summit over Jegs I got my battery relocation kit at the same time.
By the way I know that the resistor pack was the original fault that caused the problem, the temp switch was still good as were the fans. I just didn’t want to mess with it any more, and I’m sure Audi wanted more then summit did. I love my car and the 87-95 Audi’s. They drive the best and are the most fun to drive. All of my friends that have super cars like Porsche’s, and even Ferraris still have the grass is always greener view, and really like my car. I just can’t see how they let such little things past. The fans for the RAD, and the interior lights in the gauges and switches are so troublesome. Oh well I guess no ones perfect, and if owned a Honda or VW I would have broken it probably for good by now. I would have died a couple times too, and wouldn’t have faired as well in the snow.
Summit- http://store.summitracing.com/partde...5&autoview=sku
Here are the pics
feel free to ask me any question related or otherwise
If your fans work and your tired of dealing with Audi’s policy of making simple things complex and easy to break then I have the answer. Painless wiring offers an adjustable fan controller. I ordered mine after a large service I preformed. My cars temp light was blinking intermittently. I had never had any problems with it up till this point. I decided that the worst thing is that the impeller on the water pump was freewheeling on the shaft. So I just went ahead and did a full timing belt service, and while I was at it I replaced the hydraulic lifters because they were making noise even when full oil pressure was reached and I was driving down the road. After I got the car all back together. The light still came on. I had no clue what was causing it. The light would only come on if there was air in the coolant lines or if the car was overheating. I knew the day I got my car that the fans never kicked on. Three relays were missing, and when I put them back still nothing. The amazing part is I had my car for two years or so, in a verity of conditions, including long highway trips over to areas with very high temps. It had never overheated even at idle for extended stints.
For some reason it had all the sudden become a problem. Because I bought my car with the fans never working, I thought that the temps I was seeing on the gauge were normal. It was always within the two bold marks normally hovering around ½. After working on the car for many hours with unrelated maintenance I just decided to get a few things on my list checked off. I moved the battery to the spare tire compartment, and put in a separate standalone fan controller.
The installation of the controller was very simple. It has a metal probe I positioned at the top of the radiator and put a piece of foam in between it and one of the two top radiator mounting brackets. You can shove it in between the fins of the radiator, but I didn’t want to mess with that. The wiring is simple, place the thermal sensor on the RAD, hook up the black/white fan power wires, and ground the orange. For the power lead you can hook it up to any 12volt source that is controlled by the ignition. This is to prevent the fans from running with the key off. It does not draw power from this lead only helps connect the poles within the relay. I chose to hook this up to consistent power so that the fans may run even while the car is off to help with cool down. It comes with a large 40 amp fuse and may be ran with any fan setup as long as it does not exceed a 40 amp draw. Both of my fans are connected and run at full power whenever the temp reaches the appropriate level. The knob on the unit allows a for a very wide temperature setting. If you know your stuff you could even wire in a switch for the drivers compartment to bypass the controller to cool things down before or after a run.
My experience with the unit has been great. I set the dial ½ way on the controller and it comes on at the first bold mark on the temp gauge. My temps are controlled very well now, oil temps have dropped along with the over all operating temp. I have not had any problems with it being able to turn on when ever, no battery run down. It is loud though. I was walking into the mall the other day, and when I was almost at the entrance a fair distance away I head the fans kick on, sounded like a jet. If your standing at the drivers door and it kicks on after a hard run you can feel it cool the engine and it will heat your garage up very quickly. On a side note it will not turn on if it is too cold, I thought I had a defective controller because if you turn it all the way counterclockwise its supposed to kick the fans on.
It has a simple to follow wiring diagram. It cost me $63 USD for the kit form summit racing. It got here in a few days, I prefer summit over Jegs I got my battery relocation kit at the same time.
By the way I know that the resistor pack was the original fault that caused the problem, the temp switch was still good as were the fans. I just didn’t want to mess with it any more, and I’m sure Audi wanted more then summit did. I love my car and the 87-95 Audi’s. They drive the best and are the most fun to drive. All of my friends that have super cars like Porsche’s, and even Ferraris still have the grass is always greener view, and really like my car. I just can’t see how they let such little things past. The fans for the RAD, and the interior lights in the gauges and switches are so troublesome. Oh well I guess no ones perfect, and if owned a Honda or VW I would have broken it probably for good by now. I would have died a couple times too, and wouldn’t have faired as well in the snow.
Summit- http://store.summitracing.com/partde...5&autoview=sku
Here are the pics
feel free to ask me any question related or otherwise