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    VWVortex


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    Thread: DIY: Replacing your temperature sender with the updated one (green-top)

    1. 05-12-2007 02:06 PM #101
      Quote, originally posted by woodardhsd »
      These golf/jetta guys have it easy.
      On a passat, it is between the firewall and the valve cover, to the right of the combi-valve. It's easiest if you remove the breather hose and disconnect the coil-pack harness and pull it out of the way.
      Oh yeah, have really small hands.
      Search at passatworld.com for more info

      Mike

      paid 36$ at my local dealer for o ring and green top. he even told me they sell em like crazy!

    2. Member The J's Avatar
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      05-21-2007 10:23 PM #102
      Just did this tonight...
      Autozone pulled a P3081: Engine Temperature Too Low
      Explanation: Engine low on coolant - Check coolant level
      Probable causes:
      1. Failed thermostat
      2. Poor electrical connection at ECT
      3. Failed ECT
      With that, I searched and found this DIY... here's my experience:
      The new sensor cost $26 from the dealer. Retaining clip cost $0.95 and the seal was $1.60. Grand total of $28.50.
      The install went smooth... parked the car, raised the hood, took off the engine covers, and walked away for 2 hours. When I got back to the car, engine was still warm but not hot. I wrapped a wad of paper towels around the base of the sensor, put on a pair of gloves, and held a piece of cardboard right over the sensor just in case it decided to spray coolant all over the place.
      I slowly pried at the retaining clip by inserting a small slotted screwdriver between the sensor housing and the clip and inched it out. Then I pulled the sensor and it came right out, a little coolant came with it that went right into the paper towels, and that was basically it.
      The rest was straight forward:
      Disconnect old sensor, connect new sensor, slide on o-ring, clean area around the female end that the sensor plugs into, and put the sensor back in. Then, slide retaining clip back into its slot carefully. It will snap into place once it's on. Start the car and look for leaks. I found none, so I put on the engine covers, and took the car for a spin. [IMG]http://**********************/smile/emthup.gif[/IMG]
      Edit: CEL was still on, so I reset the ECU by disconnecting the negative battery cable. No more CEL!
      Thanks to the OP for this DIY! Very helpful!


      Modified by The J at 7:11 AM 5-23-2007
      Items for sale: OEM "Stubby" Mirror in White (Euro-spec passenger side); MK4 GL-trim Steering Wheel with Airbag; MK4 ASR Module; ALH TDI Race Pipe; OEM VW MK4 Jetta Wagon Tail Lights, 15" OEM Mk4 Hubcaps (two); 15" OEM Mk5 Hubcaps (two);

    3. Member 1.8TWolfsberg's Avatar
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      05-22-2007 11:33 AM #103
      I cannot believe how the price for this part has gone up. VW should be giving these damn things away in exchanges for the old ones [IMG]http://**********************/smile/emthdown.gif[/IMG]
      Thanks everyone for the nice comments I have received about this thread. I've gotten a good amount of email and IMs since I put this up from those who thought it was helpful/ Always glad to help out and contribute what I can on the tex

    4. 07-12-2007 04:37 PM #104
      I just called a few dealerships, and the price was $38 and $35 for the green top sensor.
      I also called my local german auto repair and they want $20 for the snesor and another $1 for the o-ring. I asked why the price went up form the $4 that they used to cost. He said that VW saw that people were buying these up and decided to increase the price to make more money. Nice one, VW.
      I did however just run across a site that said that they have increased in price because of the cost of copper. That makes a lot more sense to me.
      Why does my crap always have to break when it costs more to fix?!

    5. 07-16-2007 06:47 PM #105
      Thanks for the great write-up!!! Cheers!!!

    6. 07-23-2007 03:24 PM #106
      Will this correct the flashing of my coolant temp light?
      I have a 2002 1.8T GLS Jetta. My coolant temp light flashes until the temp reaches 190F then i shut off the engine and restart and it goes away. Help this is very annoying.

    7. 07-31-2007 12:25 AM #107
      thinking about doing this, 02 jetta but my engine temp on my dash sits at 0, HELP!

    8. 08-30-2007 12:04 AM #108
      Quote, originally posted by asharp27 »
      thinking about doing this, 02 jetta but my engine temp on my dash sits at 0, HELP!


      For <$20 it's worth it. Just did it to my 2002 GTI.

    9. Member Jokerjokester55's Avatar
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      09-10-2007 12:34 AM #109
      ummm this is weird guys, i just checked mine after checking the DIY (good write up by the way) and my Engine temp sensor is blue........??????? ummmm yeah, any thoughts guys? i drive a 1999.5 Auto Jetta, 2.0L
      any thoughts would be great

    10. Member
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      09-10-2007 01:17 AM #110
      marked

    11. Member Jokerjokester55's Avatar
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      09-11-2007 12:43 AM #111
      what? i don't get it?

    12. Member Jokerjokester55's Avatar
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      09-17-2007 07:53 PM #112
      does anyone know any reason why my sensor is light blue in color?? is it cause i have a 2.0L? if some one can let me know that would be awesome.
      thanks again

    13. 09-20-2007 04:46 PM #113
      i dont care what people say, you are the MAN for making this write up!

    14. 09-21-2007 12:59 PM #114
      .
      Quote, originally posted by lsmag &raquo;
      Will this correct the flashing of my coolant temp light?
      I have a 2002 1.8T GLS Jetta. My coolant temp light flashes until the temp reaches 190F then i shut off the engine and restart and it goes away. Help this is very annoying.

      if you still have this problem, changing the cap for your coolant reservoir will probably fix it. as the car gets older the cap loses it's ability to hold in the pressure - it is a pressurized system

    15. 10-06-2007 01:14 AM #115
      So i attempted to do this DIY and split coolant all over the ground, i lost the O ring, and i need more coolant now. My question would be what kind of coolant would i need to get or does it really matter for a 2002 2.0 golf, and does it matter which o ring i get. Do i have to worry about air in the line and i was reading something on here about getting phosphate free coolant. ??? i have no idea.
      1.What type of coolant.
      2. What type of O ring. part # possibly
      3. Worry about Air in the Line
      4. Phosphate Free coolant?
      no VW dealer for about 150km can i picked this up at a parts store if im specific on what i ask for?
      Thanks a bunch

    16. 10-06-2007 01:28 AM #116
      is this wrong forum, im still too new 1.8t engine forum yikes sorry

    17. 10-16-2007 03:58 PM #117
      Thanks Foshizzle I will try that!

    18. Member JettaGetUpandGo's Avatar
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      10-17-2007 09:37 PM #118
      I have an 05 GLI and pulled my engine covers off for painting. I decided to check the coolant temp sender and much to my surprise I had a black one!
      I stopped at the dealership today and picked up the green-top sender ($25.87), o-ring ($1.18), and retaining clip just in case ($0.38). When I walked in there were two already sitting on the counter that someone was on their way to pick up. There was also a bin of these right under the parts counter. I'm guessing they sell quite a few of these!
      I'm doing work. (Build Thread) | VCDS Scans / Tweaks in the Waukesha / Milwaukee area for $5 or a 12-pk of Mountain Dew

    19. 10-21-2007 11:08 PM #119
      FWIW Mine just died and AutoZone's part is only $6 and has a 1 yr warranty

    20. Member handed's Avatar
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      10-23-2007 12:30 PM #120
      My temp gauge in my cluster is sporadic, sometimes working and other times is it not reading at all
      Will changing this sender fix the problem?
      thks

    21. Member phastman's Avatar
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      10-23-2007 01:42 PM #121
      My wife just took her 2001 Jetta 1.8T into the dealer and they quoted $900 for "thermostat sticking. Engine coolant temp sensor out of range and corroding the connecting wire." Do you think just replacing the coolant temp sensor will fix this or will I need to replace some wiring also? I can't imagine the stealership would try to charge $900 just for replacing the sensor.

    22. 11-29-2007 01:19 PM #122
      <I have a 2002 1.8T GLS Jetta. My coolant temp light flashes until the temp reaches 190F then i shut off the engine and restart and it goes away. Help this is very annoying.>

      Did you ever fix the problem? My '03 GTI is doing the same thing. I still have to check to see if I have a green sensor or a black one, but it sounds like a good place to start. ECS is selling them for $20. Anyone found one cheaper recently?

      Modified by Stukadriver at 10:28 AM 11-29-2007


      Modified by Stukadriver at 10:31 AM 11-29-2007

    23. 11-30-2007 02:23 PM #123
      No its still doing it , I have replaced the sensor with one that i bought at Autozone. I still haven't changed the the expansion tank cap though.
      I have changed the expansion/coolant tank cap with a new OEM one and it still flashes. One thing I noticed when I changed the cap while the engine was warm and depressurized the tank the light did not come on. When I started the car the temp was between 0 and 190.
      Help anyone!! I know I'm not the only one with this problem.


      Modified by lsmag at 6:20 PM 12-2-2007

    24. 12-03-2007 07:06 PM #124
      My temp light usually came on a few seconds after a cold start and stayed on, but if I started it when warm or just restarted it after warming up, I didn't get the light. I changed the sensor (it was a green one) today with the Autozone sensor. So far, so good, but I have to give it a day or two to be sure...

    25. 12-03-2007 07:11 PM #125
      I also noticed that the wire from the sensor was a little loose at the other end. I don't know if it was enough to be a problem, but it clicked when I pushed the connection together.

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