Last post on Nov 17, 2013 at 8:38 AM
You are in the Volkswagen Jetta
What is this discussion about?
Volkswagen Jetta, Biodiesel, Diesel, Sedan
#1044 of 4777 2002 Jetta TDI
Sep 17, 2006 (3:58 pm)
Own a 2005 Jetta TDI wifes car love it. Yesterday Sept.16,2006 we bought a 2002 Jetta TDI because we love diesels. This one has the check engine light on dealer did not try to lie about it. He said car was purchased new there and serviced there on VW maint timeline. They have checked it a number of times and it has something to do with glow plug sensor. They are to give me a complete maint print out Monday Sept. 18. They cant seem to fix the problem,I have a f250 powerstroke diesel that I maintain myself. Also while driving today upon returning home car would not pull itself up the drive. I disconnected battery for about five minutes hooked it back up drove around it seemed to shift hard but at least I got it in the garage. Anyone know the best scan tool that will work with both my cars on is A4 platform other is A5 whatever that means. Thanks in advance for any help. Jeep Taylor
#1045 of 4777 Re: 2002 Jetta TDI [jeep1947]
Sep 17, 2006 (4:04 pm)
The best scantool for VW/Audi is VAGCOM My VAgCom paied for itself within 4 months. (3 VWs in the family)
As for your glowplug issues, this is very common if the connector-tips on the glowplugs are allowed to corrode.
Best-case, you would just need to replace the failed glowplugs.
Worst-case, you would need to replace the "glowplug harness"
#1046 of 4777 Re: 2002 Jetta TDI [jeep1947]
Sep 18, 2006 (7:42 am)
You could also try just cleaning all the contacts for the glowplugs and harness. I get that code every now and then and find sandpaper to the connections usually fixes it. If not, a new GP harness isn't expensive at all. For parts, I like www.worldimpex.com Much cheaper than dealer for the same OEM parts, or they also offer a lot of good other brands. I bought my radiator through them and it was 1/3 of what I've seen folks pay at dealers.
#1047 of 4777 Clearing & Error Code
Sep 18, 2006 (12:07 pm)
Does anyone have a good suggestion on cleaning/clearing the drain holes from the sunroof? I have an '02 Jetta that leaks on the passenger side when it rains hard. Where do these drain holes exit the car?
Also, I still have a P0118 Error Code: Engine Coolant Temperature Circuit High Input. Anyone have an idea about what I can do to remedy this (or shold I even bother with it?)
#1048 of 4777 Re: Clearing & Error Code [deaner14]
Sep 18, 2006 (2:58 pm)
For the P0118 - the "engine coolant temparture sensor" was troublesome on the early MKIV VWs. In fact, the sensor was re-desigend and the newer one is a diffreent color so it is easy to check if you have the new style installed.
YES! You should "bother" with it. If the onboard computer thinks that the engine is not running at the proper temperture, it will alter the injection and timings. This - inturn - will impact your MPG. Some people have reported a SIGNIFICANT reduction in MPG while this sensor is sending faulty signals.
I would bet that you are NOT getting over 50MPG right now.
#1049 of 4777 Re: Clearing & Error Code [bpeebles]
Sep 19, 2006 (7:04 am)
Do you happen to know the new color of the sensor?
You're right about the mpg, the last 6 tanks (2862 miles)have averaged 48.923 mpg, so I'm not over 50. But that's about typical for what I've had on the car since I bought it.
Any idea about where the drain holes exit the car?
#1050 of 4777 Re: 2002 Jetta TDI [jeep1947]
Sep 19, 2006 (10:39 am)
I replaced the glow plug harness in my wife's 2k Beetle TDI,
and it solved the problem of the check engine light
being on all the time, with a code of glow plug number 1.
The harness is about $60. Installation is ....easy, if you
move a bunch of parts. I cut the old harness, and spliced in the new one - no engine codes so far.
..pat ('06 TDI Jetta)
Sep 19, 2006 (10:45 am)
I am in the midst of putting a car-puter into
my '06 Jetta TDI, and will post details.
Right now, it works on the bench, and I have drilled
some holes, after fit-checking with a lot of cardboard
cut-outs. Primary use will be gps nav, wireless internet
for traffic conditions, some OBD engine monitoring,
and maybe mp3 playing. Detials shortly.
#1052 of 4777 Re: Clearing & Error Code [deaner14]
Sep 19, 2006 (1:11 pm)
Due to the silly rules here on edmunds I am not allowed to give you the URL for the website you need. All I can tell you is that there is a website that has step-by-step instructions on how to clean out the sunroof drain holes.
That same website has all the info you need pertaining to your "coolant temp sensor" and the various colors. (including step-by-step instructions on how to change it)
Do some searching on the web with a good search engine such as www.dogpile.com or www.alltheweb.com