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troubleshooting

  1. Troubleshooting Intermittent No Crank Starter

    B5 Garage
    I have an 2003 passat v6 stick, 214k miles. Need a little help, I've begun following this guide https://www.passatworld.com/forums/b5-information-base/382921-diy-not-cranking-comprehensive-diagnostics.html @tomvw Today is Tues and this began on Sat AM after letting my son practice driving a...
  2. P1479 Troubleshooting

    Volkswagen Passat B5 Discussion
    How do I get to the 373 Relay and the "C" fuse for the Brake Booster Relay and Brake system vacuum pump? I can see the relay after removing the fuse cover on the drivers side dash. I may even be able to reach it. Is this the best way to get at them both or should I be removing something else...
  3. Misfires on Cyls #1 & #2 What is my next troubleshooting step?

    B5 Garage
    2003 Passat 1.8T (AWM) 5spd. Manual 177,000 miles. I just bought the car, so I have no prior knowledge of its mechanical history. It starts up and will run "very rough and will only barely idle" if I hold accelerator down a bit but slowly dies when accelerator is released. It will rev up and...
  4. Troubleshooting Poor Mileage

    Volkswagen Passat B5 Discussion
    Hello All, I've begun the process of troubleshooting relatively poor fuel economy for my '03 1.8T. Symptoms are that I'm getting about 16-17mpg city (normally get 22-25) and 24 Highway (normally get 31-34). Other minor things that I've noticed are that the idle will sometimes dip below 800rpm...
  5. Strange '99 Passat AEB Engine Rattling/Bearing Noise Troubleshooting

    Volkswagen Passat B5 Discussion
    Hi folks, bought a '99 Passat 1.8T last year and it's been running pretty good. I've been to this site quite a bit in the last year looking up little maintenance issues and things, but I haven't had any luck finding a cause/solution to my current issue. The timing belt, timing belt tensioner...
  6. Troubleshooting P0011 P0321 camshaft chain tensioner

    Volkswagen Passat B5 Discussion
    2001.5 1.8T with AWM engine got a P0321 with typical symptoms (random stalls). Replaced crankshaft postion sensor and it ran great for a coouple of days. Then suddenly at highway speed, it jerked, hesitated and it has been doing that ever since. Codes are P0011 and P0321 (although I am not sure...
  7. Seat heater troubleshooting

    Volkswagen Passat B5 Discussion
    Hi everyone. I have a 2000 1.8 and now that it is getting chilly I started using the heaters for the first time this winter and I noticed that the drivers seat back doesn't get warm anymore. The bottom works and the passenger side is fine. I feel like this will be an expensive or very time...
  8. Troubleshooting oil pressure warning light issue - possibly electrical

    Volkswagen Passat B5 Discussion
    I had originally revived this thread http://www.passatworld.com/forums/volkswagen-passat-b5-discussion/332949-v6-oil-pressure-attack-dealer-tally.html but a member suggested creating my own. I think I have been through all as they relate to the oil pressure warning switch and I am to the point...
  9. Underboost Troubleshooting Advice

    B6 Garage
    Well, I have been battling a series of DTCs pointing towards Underboost and Too Lean conditions. In my vast amount of spare time between work and family, I need to figure out how to best tackle the problem(s). The 06 Passat 2.0T had a PCV "upgrade" as per the TSB from VW last year so I would...
  10. Troubleshooting Passenger Power Seat - Only Tilt Does Not Work

    B5 Garage
    I am trying to fix all the problems with a 2000 2.8 GLS that I bought about a year ago with 125K on it. The passenger side power seat goes forward and back, and raises and lowers, but the back part of the seat is stuck at one angle. In researching what is wrong, I don't see anything else to do...
  11. P0420 troubleshooting VCDS diagnosing

    Volkswagen Passat B5 Discussion
    I am new to VCDS, i got a p0420 and P1479. Can i troubleshoot my O2 sensors on the computer only once i have a registered vcds? or can i do anything besides find out what codes i am throwing with the free version? can you point me where to start on the VCDS cause all i know how to do is press...
  12. Need troubleshooting help.....I'm at a loss!

    B5 Garage
    Hello everyone! I bought my son a 2001 passat with 170k miles on the awm engine. She was a great little car until it overheated. It had a crack in the reservoir that I didnt know about until it was too late.... Any ways, one day the car was running hot and the plastic elbow that attaches to...
  13. troubleshooting occassional no-start on a 2004 Ford Taurus

    Anything Auto
    like the title says, my MIL has an occasional problem with no-start on her 2004 Ford Taurus. I replaced the battery last winter. when it occurs and you try to start the car, the engine will roll but not fire up. I intend on taking a look at it today (high temps around 25F, ugh), and it's...
  14. 2002 Passat V6 overheating. Check my troubleshooting

    Volkswagen Passat B5 Discussion
    Hi Guys! I am the original owner of a 2002 Passat V6 with 254,000 mileage. Thanks to this forum my goal is to get over 400,000 out of this wonderful little German. I have reviewed posts about overheating and I would like to know if I am on track to repair this issue. On Friday the temperature...
  15. C5 A6 troubleshooting

    Anything Auto
    I have a new to me 2001 C5 A6, 125k miles, ATQ, quatro. I've run into some oddities WRT a VCDS scan, as well as some other items that occasionally occur, to wit: 1. The alarm will go off at odd times, and a scan after will show both the trunk and hood alarm switches are faulty. 2. more often...
  16. Troubleshooting AWM stuttering at higher boost/throttle

    Volkswagen Passat B5 Discussion
    I've posted all the relevant info you would need to know about the car below. I'm trying to track down/troubleshoot why the engine stutters during heavy acceleration. Idle is perfectly fine and accelerating gradually is fine. It is only when I'm really into the boost/throttle that you feel...
  17. Passat 02 AWM 1.8 T Manual Cruise Troubleshooting

    B5 Garage
    Hello, I am trying to troubleshoot my cruise control not working on my 02 AWM 1.8 T manual Passat. Here are the facts: 1. Cruise light comes on when cruise engaged. 2. About the same time I noticed the cruise malfunction, I also noticed an unusual behavior of the car when shifting gear: a...
  18. 2004 Passat Troubleshooting, stalling while driving.

    Volkswagen Passat B5 Discussion
    Hello, I recently bought a 2004 Passat 4 cyl with 98k miles. Timing belt was replaced at 85k. The day after i bought it CE light came on, ended up needing a coil and then it ran well for a few weeks. SInce then, the car has dies while driving twice. Both times it would not start again until...
  19. A/C Troubleshooting, charge is good, blowing warm at times

    B5 Garage
    2005 Passat 4 Motion 1.8T. 122,000 miles. A/C worked fine last year. This year not so much. Wife said it was working but would take some time to cool down, say an hour of driving and then 20 min the next day and it was cold. Checked the R134a and it needed a pick me up and blew cold until...
  20. Battery Troubleshooting, help.

    Volkswagen Passat B5 Discussion
    Hello PW. So I have a 2000 ATW 1.8t Passat. I recently got a new battery refund at my friendly O'reilly autoparts. My old one was leaking and causing corrosive damage. They said it was a faulty battery. They gave me the same one, just new. I am using a Super Start Extreme and it has 740 CCA. Now...
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