- #107 of 147
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Re: Check engine, '03 Jetta [andrea45]
by jeffyscott
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Apr 24, 2009 (12:49 pm)
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Replying to: andrea45 (Apr 22, 2009 6:32 pm)
I think the coolant is called G12, not H12 and I thought it was blue, not orange  .
Anyway, just be sure to not mix green and G12. Make sure you know for certain what is in there before adding anything other than water. If you are not the original owner you never know if a previous owner may have (unwisely) had the G12 flushed out and replaced with green.
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- #108 of 147
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Re: Check engine, '03 Jetta [vwdawg]
by andrea45
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Apr 24, 2009 (7:35 pm)
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Replying to: vwdawg (Apr 22, 2009 7:45 am)
Hi David...man, figuring out what kind of antifreeze to use for your car sure seems to be complicated!...I was reading my owner's manual & I think you meant to say G12...that's exactly what my manual says to use as well...they also say that the cooling system was filled at the factory with a permanent coolant which does not need to be changed. it's a mixture of water & G12A8D- glycol based with anti-corrosion additives...The only part of the manual that mentions anything about the actual color of the coolant is when they state that you should never add an additive, like G11 with G12..and that you can recognize a red color in the expansion tank. But if the liquid in the tank is brown, then G12 has been mixed with another additive; in which case, you would need to change it as soon as possible. Heck, even my manual is complicated! It took me forever to find anything about antifreeze in the manual! That's Volkswagen for ya! Im off to get a Haynes manual & thermostat tomorrow..im so relived the mechanic found out what the problem was. I hope you get your CEL figured out..keep me posted! Thanks again..Andrea 
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- #109 of 147
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Re: Check engine, '03 Jetta [andrea45]
by jeffyscott
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Apr 25, 2009 (11:51 am)
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Replying to: andrea45 (Apr 24, 2009 7:35 pm)
Ah, that's right G12 is pink. Prior to G12, VW had G11 which was blue (I think).
Apparently there is now also G12+ that is purple.
I think the orange coolant is similar to G12 and some think it is okay to mix with G12. If it were me, I'd not take chances and would just stick with the official VW product, G12 even if it may cost a few extra bucks.
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- #110 of 147
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Re: Check engine, '03 Jetta [jeffyscott]
by vwdawg
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Apr 27, 2009 (8:10 am)
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Replying to: jeffyscott (Apr 24, 2009 12:49 pm)
Hi Andrea and jeffyscott: I think I accidentally hit the "H" rather than the "G" on my keyboard and didn't edit closely before sending. Yes, both of you are absolutely correct...G12 is what I meant. It IS a reddish-orange color, and jeffyscott is correct...NEVER mix the G12 with the green stuff...bad news. I'm not sure I would never change my coolant, but it seems the manufacturers claim the G12 is good for 100-150k miles. The previous owner of my Audi apparently didn't change the coolant, and my heater core got very plugged up. Of course, maybe THEY made the mistake of adding green to the orange. In any case, if your coolant reservoir contains a green (or worse, brown) colored fluid, I would have it flushed vigorously and immediately. Andrea...no CEL resolution yet...haven't had time to visit Fred, but I'll follow up. Let me know how the thermo change goes. D
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- #111 of 147
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Low Beam Headlight out, NOT bulb, NOT fuse
by whitgallman
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May 11, 2009 (8:36 am)
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2000 Jetta VR6 has the left front low beam head light out, so I replaced it. The new bulb didn't work either so I checked between the leads with an ohm meter and found both bulbs good. The high beam lights work fine on both sides. I checked the fuses and they were all good, cleaned their contacts.
What else could be wrong? Could the 'day time running light' controller make the left low beam not work?
Anybody have this problem and fix it?
Any ideas?
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- #112 of 147
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Re: Low Beam Headlight out, NOT bulb, NOT fuse [whitgallman]
by vwdawg
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May 11, 2009 (9:03 am)
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Replying to: whitgallman (May 11, 2009 8:36 am)
Hello whitgallman: When you state "checked between the leads", do you mean you checked the leads on the bulbs? I have owned several Jettas, never had this issue, but are you getting voltage at the connector that goes on to the bulb? If not, I would assume you're going to need to follow the wiring back from the connector until you get a reading on your tester. There must be a break in the continuity somewhere. Maybe someone else has a better idea, but let me know what you find. Good luck... vwdawg
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- #113 of 147
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Can't figure this one out -HELP
by joepeace
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Jul 02, 2009 (6:48 pm)
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I have a 2003 Jetta and the battery keeps going dead I have replaced the battery 3 times and I just replased the alternator. What else should I be looking for?
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- #114 of 147
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Re: Can't figure this one out -HELP [joepeace]
by bates2
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Jul 28, 2009 (8:58 am)
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Replying to: joepeace (Jul 02, 2009 6:48 pm)
Have you had any luck finding the problem? I have a 00 Jetta doing the same thing.
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- #115 of 147
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Re: 2000 Jetta slow electrical drain [vw_owner12]
by bates2
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Jul 28, 2009 (9:02 am)
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Replying to: vw_owner12 (Apr 09, 2009 10:39 am)
I have the same car and I'm having the same problem. Have you had any luck find out the problem?
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- #116 of 147
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Re: Can't figure this one out -HELP [bates2]
by joepeace
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Jul 28, 2009 (12:56 pm)
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Replying to: bates2 (Jul 28, 2009 8:58 am)
I wound up replacing the alternator and the battery. It appears that the batteries that sears sells are not appropriate for this car. I got a Bosch battery from Pep Boys. I have been monitoring it for the last 6 weeks. All seems OK now. I probably did not need to replace the alternator, but I figured that it couldn't hurt to shotgun the system. all is new allseems OK
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