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    reductant level sensor P203B -- implausible signal

    my "tuned***" 2015 passat tdi sel threw this code in february not long after i "topped up" the DEF. i took the car to the dealer who confirmed the code i read myself with VCDS. they rang out the harness then checked/found that the DEF level sensor was faulty. they were willing to fix this...
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    2015 Passat TDI SEL Premium = Engine Start/Stop Button

    Tried removing/cleaning the start switch in my 2015 SEL but someone had got there before me and i found the switch was broken. bought this one and installed it: https://www.amazon.com/gp/product/B0BBDZ59JD/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 has worked just fine since (9 months...
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    Fix for when push to start button acts up

    P2B, curious that the Amazon link in my post above shows “Currently not available” for you…..still showed stock available to me when i clicked on it just now. might have something to do with our respective locations—Canada vs US. at any rate, there seem to be a bunch of sellers on Amazon...
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    Start button issues.

    Wanted to try cleaning the contacts to fix the KESSY start button on the 2015 i bought this past summer w 90k on the odometer. However, when i pulled up the center console and removed the start switch i found someone had been there before me. one of the metal tabs that mounts the switch was...
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    Fix for when push to start button acts up

    Wanted to try this method to fix the start button on the 2015 i bought this past summer w 90k on the odometer. However, when i pulled up the center console and removed the switch i found someone had been there before me. one of the metal tabs was gone and one of the plastic tabs that holds the...
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    Mineral build up

    more than likely just a line leak and the injector is fine. read about it here: https://static.nhtsa.gov/odi/tsbs/2019/MC-10157347-9999.pdf oem replacement line is about US$60.00 online. doesn’t look like it’s too difficult to replace in online videos. my 2015 is at the dealer right now...
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    Coolant leak

    Wow! …..hard to believe it’s been 6 years since i had this problem n started this thread! aktxyz, the one step i took that helped me find the source of my coolant leak (oil filter housing) way back then was to pressurize the coolant system w the engine off (without the engine running i could...
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    Belly Pan Screws

    https://www.jimellisvwparts.com/products/Volkswagen-VW/2012/Passat-TDI-SE-Sedan-20L-TDI-DIESEL/Bolt-Screw-Shield-Cover-Panel/5252628/N90974701.html only description i could find was “bolt 5 X 16 mm”. bob.
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    Coolant leak

    Marsh, i agree…..if my car was marking my driveway from an issue like this i probly wouldn’t put up with it either. if it were my car AND it needed an oil change AND i was using the dealer for that service then i would ask the service advisor how much they wanted to DIAGNOSE the problem while...
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    Alternator replacement

    weightloss400, dropping the fans might not give you enough room. erwin info sez to put the front lock carrier into the service position (search for it….there are videos) and to drop the ac compressor (some veterans here say it’s easier to completely remove the compressor from the car if you...
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    Coolant leak

    Marsh, i agree with modmy360.…clean it up and run it for awhile to see where it’s leaking from. could be seeping at the oil filter o-ring. actually, looks to me as if the tech doing the filter changes wasn’t very careful, made a mess (which is easy to do changing the oil filter on these...
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    P026A code and intercooler buildup

    hi jeff! sorry you’re having to deal w this issue too….but glad your car is back on the road. the first time i cleaned my intercooler without removing it from the car the solvent went everywhere when i drained it. that’s when i knew i’d need to mod the stopper with a valve. here’s a picture...
  13. 36F0DE08-8170-4882-8E07-8B314E7D1C7D.jpeg

    36F0DE08-8170-4882-8E07-8B314E7D1C7D.jpeg

    1/4” FNPT gate valve added to a #10 1/2 hard rubber stopper using a 3/8” hose adaptor.
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    G42 intake air temp sensor connector broken..

    hi forrest resto’s! i imagine that you may have already fixed this problem by now but i thought i’d post my own experience so maybe someone else might benefit from it. back in 2015, VCDS indicated a problem with the G42 sensor after it threw a code in my passat. not knowing what or where the...
  15. 6C4245CF-4F55-4849-AA90-63F21C204FF2.jpeg

    6C4245CF-4F55-4849-AA90-63F21C204FF2.jpeg

    Terminal for MAP/IAT connector.
  16. 500ED133-21D1-47A5-B441-7F84A19B614A.jpeg

    500ED133-21D1-47A5-B441-7F84A19B614A.jpeg

    Terminal extractor tool.
  17. B06C8689-BA60-49A9-A693-B4345E5F3B55.jpeg

    B06C8689-BA60-49A9-A693-B4345E5F3B55.jpeg

    Housing for MAP/IAT sensor.
  18. 4C62C967-8D09-4180-AB96-101235E6BC5D.jpeg

    4C62C967-8D09-4180-AB96-101235E6BC5D.jpeg

    Defective MAP/IAT sensor disassembled to get male terminal pins to use as a tool to test female connector by “pin drag” test.
  19. F234F446-C6BA-44BC-94A2-5097CA6990D8.jpeg

    F234F446-C6BA-44BC-94A2-5097CA6990D8.jpeg

    Extracted wire from MAP/IAT connector.
  20. A9A301B8-3414-4366-B0A6-8E4080E8AB73.jpeg

    A9A301B8-3414-4366-B0A6-8E4080E8AB73.jpeg

    Crimp tool for MAP/IAT connector terminal.
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