Is it possible to temporarily drive with the the TURBO unit "dissabled"

  1. Welcome to VW Passat Forums : Volkswagen Passat Forum – General discussion forum for Volkswagen Passat

    Welcome to VW Passat Forums : Volkswagen Passat Forum - a website dedicated to all things Volkswagen Passat.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join VW Passat Forums : Volkswagen Passat Forum today!
     
Results 1 to 4 of 4
Like Tree1Likes
  • 1 Post By ylwagon

Thread: Is it possible to temporarily drive with the the TURBO unit "dissabled"

  1. #1
    Neutral
    Join Date
    Dec 2014
    Location
    Round Rock, Texas
    Posts
    52

    Is it possible to temporarily drive with the the TURBO unit "dissabled"

    I need some time before I can take the car out of service to work on the Turbo Unit on my 2003 B5.5 Passat 1.8

    Started to leak oil into the plastic tubes to the inter-cooler.

    It would allow me to use the car until I can find a "window" to take the Turbo Unit itself and see if I can rebuild it myself.

    I got the car at a high used price from my ex just to help. But as the old saying goes: " There is no good deed that can go unpunished" I have been pumping money and time into this car since I got it three years ago. No bad because I love the car, and I have mainly paid only for parts. My labor I consider it free since I am now retired.

    I can do precision work and takes me lots of time, but I have more of that then bread to pay for repairs. Besides, I have done work on my own cars for 66 years.

    My first thought would be to plug the oil supply and return lines to/from the Turbo and disable the signal that gets the Turbo to start pumping air. I assume that without oil supply also the Turbo shaft should be "locked" so no further damage to the unit occurs and allows for further rebuilding.

    Any ideas if at all possible directions and how to disable the Turbo (what to do that can be reversed later with maybe only minor damage) and also stopping the Turbo rotor from destroying itself if running without oil?
    I can happily put up without the pep of the turbo for a while if this is possible.

    I thank in advance for any pointers or other solutions to the above.

  2. Remove Advertisements
    VW Passat Forum
    Advertisements
     

  3. #2
    2nd Gear
    Join Date
    Jun 2012
    Location
    Colorado
    Posts
    806
    There is no signal to engage the turbo, it runs on exhaust gas pressure. You could dump the extra manifold pressure the turbo generates to the outside but there is nothing that will stop the turbo from turning except to take it out.

    The car will have very little power without a turbo. You could probably drive it but don't expect it to run normally at all.

    How much oil is it leaking? It is normal to have a few drops to a few ounces of oil in the intercooler hoses. If the oil level isn't dropping quickly you can probably still drive it until you get it fixed. I have a few used turbo's and could sell one for little $. PM me if you're interested.

  4. #3
    Neutral Newli327's Avatar
    Join Date
    Jun 2018
    Location
    Defiance, OH
    Posts
    81
    Iowegian is right, the only thing electronic on the turbo is really the wastegate, but there's nothing stopping the compressor from spooling and without oil, it'll destroy the turbo fast.

  5. Remove Advertisements
    VW Passat Forum
    Advertisements
     

  6. #4
    5th Gear
    Join Date
    Sep 2002
    Location
    Fallbrook CA USA
    Posts
    5,103
    Quote Originally Posted by PassatGLS-00 View Post
    Started to leak oil into the plastic tubes to the inter-cooler. It would allow me to use the car until I can find a "window" to take the Turbo Unit itself and see if I can rebuild it myself.
    Before condemning the turbo, it would be a good idea to get acquainted with how they actually work. As said, they are not turned on or off by an electrical signal, or by oil pressure. And if a turbo is so badly damaged that it leaks oil from the compressor or turbine end, it will leak whether the rotor is stopped or not.

    By "plastic tubes" I suspect that you mean the rubber discharge hose from the compressor housing of the turbo, and/or the hose which brings the air into the intercooler, is that correct? Iowegian points out that some oil in those hoses, including the throttle, is normal. The crankcase breather system discharges oily vapors into the induction system, which could be mistaken for a turbo problem. But first you need to confirm your problem; Is the car smoking? How do the spark plugs look; black and sooty or dry and almost white? Whirring noises when stepping on the throttle?

    As for rebuilding, the turbocharger is unfortunately not like an alternator or starter motor that can be restored by new brushes, for instance. By the time a turbocharger fault is evident, the damage often makes repairing it beyond hope. The good news is that new, aftermarket turbos are available that work fine, at least the one we put on our 1.8T did.
    axenstar likes this.

  7. Remove Advertisements
    VW Passat Forum
    Advertisements
     

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Where do you live?

Year of model

car model

Please select your insurance company (Optional)

Log-in

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

    Similar Threads

    1. Replies: 1
      Last Post: 05-08-2019, 01:47 PM
    2. Replies: 3
      Last Post: 03-19-2012, 06:07 PM
    3. How to temporarily plug rear banjo clamp brake line?
      By muttony in forum Volkswagen Passat B5 Discussion
      Replies: 11
      Last Post: 01-23-2012, 07:10 PM
    4. How to disable turbo temporarily ?
      By Passat_BR in forum Volkswagen Passat B5 Discussion
      Replies: 10
      Last Post: 04-13-2007, 10:51 PM
    5. Anyone wanna temporarily swap chips?
      By Spanky McGee in forum Volkswagen Passat B5 Discussion
      Replies: 3
      Last Post: 08-22-2005, 08:17 PM

    Tags for this Thread

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •  
    Powered by vBadvanced CMPS v4.1.2