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Forum: 1.8T Engine

Discussion area for the 1.8 liter turbocharged 4-cylinder engine found in the Audi A3, S3, A4, Golf/Jetta MkIV, New Beetle, Passat, TT, etc.

  1. Exclamation Sticky Thread Sticky: VW 1.8T Engine Info

    Information regarding the 1.8 Turbo Engine for VW. Volkswagen Engine Information Includes engine codes, model years, horsepower, OEM boost, etc. ...

    Started by Ricas, 05-04-2008 10:48 AM
    • Replies: 4
    • Views: 67,017
    05-07-2008 06:02 PM Go to last post
  1. VW GTI Miss in Cylinder 3

    hello y'all. i have a 1991 VW Golf GTI. i have a miss in the third cylinder. i noticed it first last year because the car lost power. i pulled the...

    Started by jamesmatthiasdow, 10-23-2017 09:02 AM
    diagnosing a miss
    • Replies: 1
    • Views: 13,351
    10-31-2017 10:12 PM Go to last post
  2. 2016 Passat Rline 1.8T Fuel Economy

    I just got a 2016 Passat Rline 1.8T and I'm confused about its fuel economy. Its rated as 25-38 MPG but I can swear the gage is moving faster than it...

    Started by Daavi, 10-03-2017 02:06 PM
    • Replies: 0
    • Views: 7,783
    10-03-2017 02:06 PM Go to last post
  3. Charge Air Pressure Actuator- 2016 Passat R-Line

    Hi folks, I'm repairing my 2016 Passat R-Line after a collision but after replacing all parts upfront, when the key is turned to the "ON" position,...

    Started by Daavi, 08-08-2017 07:56 PM
    • Replies: 0
    • Views: 1,240
    08-08-2017 07:56 PM Go to last post
  4. 1998 Passat 1.8lt rpm's dropping and tough to start after fueling up.

    Hi, i have a 1998 passat 1.8lt I've had it for about 6 months, since day one ive had problems with starting the car up after fueling up (doesnt...

    Started by show_time_23, 04-11-2011 04:39 PM
    • Replies: 8
    • Views: 7,073
    06-13-2017 11:04 PM Go to last post
  5. RPMs Dropping when at a complete stop

    I've noticed recently that the RPMs have been dropping when stopped, but only after I have driven for a bit. Once the car is in motion(even without...

    Started by Clholmes, 06-13-2017 11:02 PM
    • Replies: 0
    • Views: 3,910
    06-13-2017 11:02 PM Go to last post
  6. Firefox готовит конкурента Skype

    Недавно Mozilla выпустила обновлённую версию браузера Firefox за номером 41, которая стала доступна пользователям Windows, Mac, Linux и Android....

    Started by akunoc, 02-24-2017 08:34 AM
    браузера, интернет, mozilla
    • Replies: 0
    • Views: 8,404
    02-24-2017 08:34 AM Go to last post
  7. MAF for 180hp MK4

    Hey Guys, My MAF wiring harness on my 02 GTI AWP has 4 slots/wires, but the BOSCH replacement MAF i bought has 5 spades on it. Googled this and...

    Started by dub_0_7, 07-25-2014 03:30 PM
    • Replies: 12
    • Views: 5,667
    10-06-2016 09:33 PM Go to last post
  8. Steering Very Tight. Making Noise!

    My steering lately has been very stiff and hard to turn while driving slow. I've talked to jason about a crumpling noise in the front while turning...

    Started by VDUB02, 11-04-2010 12:49 PM
    • Replies: 7
    • Views: 4,477
    10-06-2016 08:18 AM Go to last post
  9. vw1.8t timing belt

    I recently purchased a used 1.8t awp motor to replace the blownmotor in my car. I was going to change the timing belt and water pump with the engine...

    Started by biggsk1500, 10-09-2013 10:28 PM
    • Replies: 2
    • Views: 3,352
    10-06-2016 08:06 AM Go to last post
  10. How-To Remove 1.8T Head

    hahah, you thought this was going to be a how-to, but it's actually a question. How-to remove it? The big Q is, do I need anything special...

    Started by footose, 04-14-2011 06:31 PM
    • Replies: 15
    • Views: 18,043
    10-06-2016 04:12 AM Go to last post
  11. 1.8t - unplugged MAF, runs exactly the same

    Hey guys, I have searched the forums and google boxed this one and haven't found a answer to my questions. My 1.8t (2002 AWP ) runs pretty well,...

    Started by dub_0_7, 06-22-2014 05:34 PM
    • Replies: 9
    • Views: 4,038
    10-06-2016 01:04 AM Go to last post
  12. Help, wierd noise when cold start 1.8T gti 2001 AWW

    hey guys this is my first post an i was wondering if you guys could help me find out where this weird sounds is coming from.. i got the car last...

    Started by DansDub, 04-30-2014 05:21 PM
    1.8turbo, 2001, aww, golf, gti
    • Replies: 6
    • Views: 5,035
    10-04-2016 06:40 PM Go to last post
  13. 2003 Passat 1.8T - Advice

    So i just bought a 03 passat 1.8t automatic with 190k miles and after getting it home it started shuddering and the check engine light was flashing....

    Started by scrapdizle, 02-28-2016 08:24 AM
    • Replies: 0
    • Views: 6,449
    02-28-2016 08:24 AM Go to last post
  14. timing belt broke- looking for some tech advice

    My timing belt broke on the hyway the other day, I got it home and started the replacement, i lined up crank to tdc #1 and lined up cam pulley to its...

    Started by dubbed_long Island, 06-22-2015 01:28 PM
    1.8t, jetta wolfburg, timing belt
    • Replies: 0
    • Views: 7,893
    06-22-2015 01:28 PM Go to last post
  15. Question 01 1.8T Wolfsburg Jetta Problems

    I have a 2001 Wolfsburg Jetta with approximately 186k miles on it. I am not a mechanic in any sense but I can do simple repairs. I have a few...

    Started by kwalk14, 04-26-2015 03:42 PM
    idle, noise, smoking, turbo
    • Replies: 0
    • Views: 7,530
    04-26-2015 03:42 PM Go to last post
  16. 1.8t wolfsburg air conditioning help

    I have a 2001 jetta 1.8t wolfsburg. My ac stopped blowing cold. The heat still works, and the compressor turns on when I turn the ac on. I put a...

    Started by rushismyband1722, 04-03-2015 03:54 PM
    air, compressor, conditioning
    • Replies: 0
    • Views: 5,458
    04-03-2015 03:54 PM Go to last post
  17. 01 1.8t jetta Wolfsburg

    Im thinking about buying this car for 2700 bucks. And I was just wondering if you guys recommend anything to maybe clean it when I get it. As in...

    Started by Zachabbott, 03-24-2015 03:30 PM
    • Replies: 0
    • Views: 3,454
    03-24-2015 03:30 PM Go to last post
  18. 2001 1.8t swap to 2004 1.8t ? Is it possible ?

    Just a quick question, can I swap a 2001 1.8t Jetta too my 2004 1.8t Jetta gli ?! NEED HELP ASAP PLANNING ON PICKING WHOLE car soon to do the swap ...

    Started by Daniezuko, 03-04-2015 01:32 PM
    1.8t, jetta
    • Replies: 0
    • Views: 4,630
    03-04-2015 01:32 PM Go to last post
  19. Turbo leaking oil...

    Ok For some time now my turbo has been leaking oil.. from what I've gathered (from Cherry's Turbo) The seal on a turbo is not the greatest and will...

    Started by Born2DUB, 04-07-2007 08:34 PM
    • Replies: 15
    • Views: 15,808
    09-15-2014 02:37 PM Go to last post
  20. 2002 Golf GTI 550K?

    Is it possible to have a GTI with this kind of mileage. Apparently been regularly maintained with synthetic oil and tranny fluid. Mostly highway...

    Started by Shutterbug, 06-22-2014 11:59 AM
    • Replies: 3
    • Views: 3,332
    07-06-2014 10:19 AM Go to last post
  21. 1.8t AWP w KO3s manifold -> turbo gasket replacement

    Want to know if anyone has replaced the exhaust mani -> turbo gasket on their 1.8t. Heard many different things about how tough and how long it...

    Started by dub_0_7, 06-24-2014 11:38 PM
    • Replies: 0
    • Views: 3,736
    06-24-2014 11:38 PM Go to last post
  22. Broken/disconnected mystery hose?

    2003 VW Passat GLS 1.8 Turbo I have a hose on the passenger side of my engine that came disconnected or is possibly broken. It seems to only have...

    Started by safiyaspaghetti, 06-11-2014 12:26 PM
    • Replies: 0
    • Views: 4,173
    06-11-2014 12:26 PM Go to last post
  23. wastegate spring mod

    hi guys. im new to the forum and i have 2003 jetta 1.8t 125k, stock tune with just a cold-air intake. i do plan on putting more mods to it soon but i...

    Started by tdron21, 01-07-2014 10:36 PM
    • Replies: 3
    • Views: 3,286
    04-28-2014 06:33 AM Go to last post
  24. Stage 1 reflashed 1.8t

    I reflashed by MK 4 1.8t a few months ago to stage 1, and was loving the boost...but recently i went to a mechanic who reset/ reflashed my system...

    Started by 20george20, 04-10-2014 12:07 PM
    • Replies: 3
    • Views: 3,377
    04-12-2014 05:12 PM Go to last post
  25. Oil Smell in Vents

    My 1.8t 2000 has an oil smell in vents. My Vagcom says secondary air flow injection problem. I replaced the valve gasket seal. No obvious oil...

    Started by GasPig, 03-01-2014 10:31 AM
    • Replies: 0
    • Views: 2,943
    03-01-2014 10:31 AM Go to last post
  26. Oil Leak

    I cant seem to find the source of a small oil leak. I added some dye to help find it - here is what I see. Some oil resting in the grooves where...

    Started by turbo, 12-18-2013 12:57 PM
    • Replies: 0
    • Views: 2,908
    12-18-2013 12:57 PM Go to last post
  27. 3" APR DP install options

    Bought a 3" APR DP as stated in title. I'm running stage 1 APR right now with Forge TIP and 007 DV. Thinking about going stage 2, but worried about...

    Started by dub_0_7, 12-05-2013 09:43 AM
    • Replies: 5
    • Views: 4,176
    12-10-2013 12:07 AM Go to last post
  28. Improved performance after unplugging MAF

    Hey guys, been a while since I've posted on here. I have an 02 gti (only engine mods are 007 DV). Recent upkeep includes the following: ...

    Started by dub_0_7, 11-26-2013 04:45 PM
    • Replies: 1
    • Views: 3,536
    11-29-2013 06:49 AM Go to last post
  29. recall question 2003 jetta wolfsburg

    Hey guys, I have a 2003 jetta wolfsburg with the 1.8t engine and I've been having some trouble with cold starts and the car chugging and then...

    Started by Dark00jetta, 11-10-2013 02:17 PM
    • Replies: 0
    • Views: 3,173
    11-10-2013 02:17 PM Go to last post
  30. In desperate need of someone who knows there way around turbos

    I bought a 1.8t about sixth hand. There's been work done intercooler bov installed and a lot of vacuum tunes going every which way. Some are barely...

    Started by 2001 dub 1.8t, 10-30-2013 07:16 PM
    • Replies: 3
    • Views: 3,511
    11-06-2013 04:51 PM Go to last post

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