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  1. Golf IV & Jetta IV
    Hi, all I am sorry if this has been already discussed... My car is VW golf mk4 1.8T, the production year is 2003 and the engine code is AUM. I have a problem with the secondary electrical fan. When the car is running with AC on and I drive in city traffic or I move very slowly, the vehicle...
  2. Passat (B5)
    so I’ve never owned a vw and am lost. I have a 2002 passat 1.8t that has been over heating. my first thought was thermostat but that didn’t fix anything so I went to radiator flush no luck either. I have been researching trying to find my issue also no luck my issue is my electric coolant fan...
  3. Golf IV & Jetta IV
    Hey guys i have a 2003 Jetta Gli 24v and I've been noticing since I replaced the Fan Control Module that when I am at idle I start to overheat, but when i start to drive it drops back down to normal operating temperature, any ideas for what it could be/what I should check thanks
  4. Golf IV & Jetta IV
    So my 04 Jetta the ac doesn’t work and so I did a few tests and ended up replacing the radiator fans and fan control module. My fans then worked on one setting only because I still needed to replace the radiator temp sensor. Well my car overheated and blew antifreeze everywhere because it busted...
  5. Golf III & Jetta III
    So my Jetta suddenly started overheating. It never has before and the one time it did it blew a hose. Any ideas what could be causing it? It was driving just fine. The fans work as well.
  6. Golf/GTI VI
    So, my MK6 is overheating at idle. The car has 88,000 miles on it and the previous owner “thought” the water pump had been replaced but he wasn’t sure. It’s happened twice now, after letting it sit in park and idle for like 5-10 minutes the needle start to move two notches over from the middle...
  7. Golf IV & Jetta IV
    So my fans do not work at all and my a/c doesnt either. I have checked all the fuses and ran a few tests. I checked the fan radiator temp sensor by jumping it and the large fan will come on with both speeds working, but the small one doesnt. I then checked both fans by themselves again by...
  8. Golf II & Jetta II
    Hi guys I have a 1990 Jetta turbo diesel (not TDI just dt) (daily driven) its still cold here in Canada so it's not bad "yet" I had a good friend of mine tell me my radiator fan switch/Thermo switch is dead.... Dose any one have a pic of the part or a part number before I pull it and go looking...
  9. Golf IV & Jetta IV
    changed my functioning radiator and hoses as recommended by my mechanic due to two two slight pinhole leaks. Thought I was good for another ten years, but the very next day, while driving home from work it began to overheat to a dangerously high level. Checked to see if the water level was low...
  10. Golf/GTI VII
    Hi all! I had this annoying instance where the AC was not blowing cold air but more so room-temp air. I had a warning: STOP - ENGINE OVERHEATING. Yay. The temp was in the 140-150 region. It’s currently 34 °C Celsius out. I checked the coolant and it was at optimal level with no boiling effect...
  11. Passat (B5)
    Hi I have b5 passat with the lovely atw motor . I have just recently swapped to a ko4 and now begun to over heat/ boiling the coolant and will make 10psi and drop it to 0 and won't build no more boost just straight 0s. I have checked all charges pipes and redone all vacuum lines as the diagram...
  12. Golf IV & Jetta IV
    Hello everyone, i own a 2001 jetta 2.0 gls and it overheats when going slow or in stops and when going up long hills but when I turn on ac it cools down. Any ideas on what could be causing this? Also it has no heat.
  13. Golf IV & Jetta IV
    So for the last few weeks my car has been overheating while stopped or parked. If I start driving again or if I rev it in neutral, the temp goes back down to 190 and then will rise again until i either rev it or start driving. I’ve replaced my thermostat and water pump, and have had multiple...
  14. CC
    Ive got 2010 2.0 with about 120K miles. During the summer months I have had issues with the car overheating. Now while the car is moving, it will stay at the normal operating temperature. But while stuck in traffic or waiting at a light, it tends to start running hot. Before it would go all the...
  15. Golf/GTI VI
    Good morning all, I wanted to (hopefully) get some help on an issue with my GTI with 98xxx miles. My car has been running very hot lately, but never at idle, only when driving for more than maybe 20+ minutes at highway speeds especially. Granted the weather where I am is very cold currently so...
  16. Golf SportWagen VII
    Hi everyone, long time lurker here, I find this forum extremely valuable. Everything is pointing at a failed water pump, what do you think? 2017 GSW 6MT AWD 67K miles The engine is overheating. The dashboard gauge climbs all the way to 260, and the fan is on full speed. Turning cabin heat and...
  17. Golf III & Jetta III
    Hello everyone. Im new to this forum and vw in general. I just got a 97 golf recently that was having a heater core issue and it also over heats. I took care of the heater core problem but can't seem to find out where the leak is in my coolant system. When I try to vacuum fill it, it wont...
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