2000 jetta has multiple alternator and battery failures
Bought used jetta recently. came with new battery. after several days of driving without problems (that I was aware of) one morning found the battery discharged and motor would not start. Jumping the battery seemed to get me going again, but the same thing happened several times after. A little checking with a voltmeter indicated the alternator had failed. Replaced the alternator and battery. Ran fine again for several days. same sequence: dead battery, battery boost, eventually dead alternator. I'm on another sequence, but futher checking shows a steady drain on the battery of a little under 3/4 amp even though the moter is off, all doors are closed, and after the interior lights have gone off.
I'm aware of TB 06-01, march 29, 2006 which alerts to a over-temperature failure of some 90A alternators. My orignal was in that list of faulty alternators. Right now, though, I'm using a 120A alternator and I've opted for a slightly larger battery (850 CCA versus 700 CCA). A 26 mile drive test shows the alternator and battery working properly together (except for the drain mentioned above). I'ved tried to trace the drain with millvoltmeter placed across various fuses, but that gets me nowhere because the fuses are inside the car and all sorts of things turn on when I open the door. The drain from the enterior lights and other stuff obscures the fault I'm looking for. Is there another way to find it?
I am the original owner of a 2006 Jetta 2.5. Out of the blue the car failed to start yesterday morning. A quick jump got it going. Reached my destination 30 miles away and noted that the LCD display was staying on after car was shut off amd alarm engaged. Used to go out after a few seconds. Tested battery - thought dead til realized that there is a significant drain somewhere. Charged battery for several hours; good. Reconnected battery cables and noticed that alternator was very hot to the touch, although car had been sitting for nearly 8 hours on a cool day. Suspect alternator. Car is at the VW shop now. Will post findings later. Where can I find a the TSB 06-01 on line that you referred to? Thank you.
[email protected]I am the original owner of a 2006 Jetta 2.5. Out of the blue the car failed to start yesterday morning. A quick jump got it going. Reached my destination 30 miles away and noted that the LCD display was staying on after car was shut off amd alarm engaged. Used to go out after a few seconds. Tested battery - thought dead til realized that there is a significant drain somewhere. Charged battery for several hours; good. Reconnected battery cables and noticed that alternator was very hot to the touch, although car had been sitting for nearly 8 hours on a cool day. Suspect alternator. Car is at the VW shop now. Will post findings later. Where can I find a the TSB 06-01 on line that you referred to? Thank you.
Re: 2000 jetta has multiple alternator and battery...
In my case, the instrument cluster was bad, causing the MFI display and radio to go haywire and putting a contstant drain on the battery. $760 to have the VW shop replace it. No problems related to the battery or alternator have occurred since.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
I would start with something simple like a load test on the battery as it apparently does not have enough current stored to run the CPU properly. IN the AM I would think that you would have the lights on and these drain any excess current from the battery. Check the alternator for correct out put and check drive belt tension and condition as a slipping belt will be the cause of the faults.
had almost same proublem with my sons car ,after two alt and a battlater ,found a loose connection at starter tha was causing the proublem all is well now might want to check
Check your battery charging rate. A possible alternator or battery failure. If the battery is charging at around 14volts, then replace the battery. If its charging anywhere below 13.5, then replace the alternator.
Other possibilities are a blown ignition module, bad coil wire, or broken cam sensor (it's attached to the distributor). There are detailed tests for these in the Bentley, but your mechanic ought to be able to troubleshoot.
This is presuming it's really a no-spark failure. Ground or power faults can disable the computer, the fuel pump circuit can be open, etc.
Disconnect both battery cables and short them together for a few minutes. Then reconnect the battery and check the instrument panel. If this doesn't work, you may need to replace the instrument cluster (volvo calls this a drivers information module). I have replaced several of these and they are not cheap. You can't install a used unit and you will need to download software into the vehicle to make it work.
Every time you loose power to a throttle body(disconnect battery or unplug wire from throttle), you need to do throttle body adaptation , using appropriate scantool.
During this past winter, I was driving my 98 Jetta GL and it suddenly shut down in the middle of the road. It restarted but would only go a little ways before doing the same thing. I got it checked out and it turns out I had to get new fuses. I knew someone who could put them in it was very cheap to fix.
The only efficient way to indentify the fault is by getting the fault codes read from the on-board diagnostic system. Without that data everything is just guesswork.
However, an unusual ticking could be a failing cambelt which is "new engine time" if not rectified immediately.While there, check the alternator and hydraulic pump belts .
Hope this helps. If this "fixes ya", I'd appreciate a rating for my reply, If not, please delay the rating and add a comment with any extra info you have and I will try to think of something else.
I am the original owner of a 2006 Jetta 2.5. Out of the blue the car failed to start yesterday morning. A quick jump got it going. Reached my destination 30 miles away and noted that the LCD display was staying on after car was shut off amd alarm engaged. Used to go out after a few seconds. Tested battery - thought dead til realized that there is a significant drain somewhere. Charged battery for several hours; good. Reconnected battery cables and noticed that alternator was very hot to the touch, although car had been sitting for nearly 8 hours on a cool day. Suspect alternator. Car is at the VW shop now. Will post findings later. Where can I find a the TSB 06-01 on line that you referred to? Thank you.
[email protected]
×