Why does my TDI cooling fan run after shutting the engine off?
Since the vehicle does not know you are only going on a short trip, it may start this process just before you arrive at your destination and now that engine is switched off and the vehicle is stationary the system will self-activate the cooling fans at high speed in an attempt to bring down those high temperatures now trapped below the hood.
Where is the fan speed controller on a Toureg?
In VW/Audi world, the fan speed controller is called a ” Bitron .” The fan speed controller is known to occasionally break. On the original Toureg, the fan speed controller is in a blue box directly behind the glove box door. The fan speed controller is not part of the motor. It is separate from the motor.
How long does a VW cooling fan last?
The thought of walking away from your Volkswagen with the cooling fans buzzing away leaves most people with images in their heads of dead batteries and tow trucks. Rest assured—this is in fact normal operation. The after-running of the cooling fans is deliberate and can sometimes last up to 16 minutes after switching the engine off.
Why is the blower motor on my Touareg not working?
The heat was working fine. The AC would turn on and work for about 30 seconds and then a deep humming noise would start from behind the dash towards the glovebox and… AC/Heater blower motor on my 2005 Touareg stopped working. Dealer estimate $1,000+ to replace. Motor cost around $250.
What to do if your a / C fan is not working?
The a/c button turns the fans on LOW only, and the fans will still work on high if the engine temperature gets too hot, above 107C actually, or 224F. The only way to fix this is to replace the defective fan.
Where is the fan control module on a VW?
The fan control module is located under the radiator and has two connectors: a 14-pin (T14) and a 4-pin (T4). 2. Check for 12 volts to pin T4a/1 (red/black) and T4a/3 (red) via fuses S164 and S180 respectively, in the fuse box on top of the battery, at all times.
Why is my a / C not working on my Jetta?
This includes 98-10 Beetle, 99-06Golf, 99-05 GTI/GLI/Jetta/Bora. The fuse as shown in the picture normally does NOT fail but the fuse box under it does. It melts and this particular part sends power to the cooling fan thermal switch AND the Fan control module. The fan module also sends power to the a/c compressor.
Why do my fans stop when I unplug the AC?
When I unplug the AC (G65?) sensor the fans stop. This was the sensor mounted up near the firewall in the discharge line going to the evaporator. This leads me to believe it is related to the AC, not necessarily the FCM. noticed in Dan’s guide it said to check the voltage at the white wire on the G65.
Why are the Bentley radiator fans not working?
I checked the fan circuits as per the Bentley manual today, When I jumper the terminals at the thermo switch on the radiator the fans come on, but only high speed. They won’t work on low speed. I turned the AC on with the fans on hoping it would be cool but it still won’t cool.
Why are the cooling fans buzzing on my new diesel?
It’s cold outside; you went for only a short trip up the road, the engine is not even warm yet but when you shut the engine off and get out you notice the cooling fans buzzing away like they do on a hot summer day. This can’t be normal, right? This is a common concern with new Clean Diesel owners and rightfully so.
What to do if your VW TDI loses power?
If you are not sure whether it is bad, simply rev the engine to 5100 RPM while in park or neutral. If the MAF is bad, you will not be able to do it. If the MAF has not failed totally, you should be able to do it. You can also unplug the plug connector. The ECU will then replace the faulty signal with a default value.
Why does my VW TDI diesel engine Hiccup?
Some people think the hiccup is caused by the turbo: it isn’t. If the turbo stops, you will have tons of black smoke, and your car will limp or stop functioning. Oil Side Note: VW Diesels require special oil to be used to prevent rapid cam wear.
Is there an aftermarket for a VW Jetta?
Luckily, a vibrant aftermarket exists for TDI’s. In fact, over the past 15-20 years of playing with these cars, so many parts combinations have been tested that—for all intents and purposes—ALH Jetta performance has been nailed down to a science.
What happens if you turn off the electric fan on a Jetta?
Electrical Fan continues running after car turned off. Draines battery. Electrical Fan continues running after car turned off. Draines battery. on Volkswagen Jetta Good news! We found 31 RepairPal Certified shops near you.
Why does my Audi A3 fan run all the time?
That 4-pin refrigerant pressure switch was a common failure on the A3 cars, and its failure mode would cause the fan to run constantly. Never seen it manifest itself in the same manner on an early A4 car, though, but that doesn’t mean it couldn’t happen.