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Maintenance & Repair Maintenance & Repair - Archived Discussions VW Ignition Coil Problems? 
243 messages, Last post on Aug 11, 2003 at 7:24 PM
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VW changed to a "better" supplier of coil packs some time in August 2002. Check the build date of your 2003 (on the drivers side front door jam). If it's August 2002, you may have the old packs. If it's before August 2002, you definitely have the old packs. If September 2002 or later, you have the new ones. You can also check the packs themselves. Those ending with "H" are bad. Those ending with "J" are the new ones. To check, remove the cover of the engine (3 screws). The part number of the packs is on the "back" side (facing the windshield). My 2002 was build in March 2002, so I'm just waiting for the packs to go. -Craig |
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| I ahve a 2001.5 Passat with 15,000 miles. Will there be a problem with the coil packs? | |
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Check the part number of the packs. The packs before the "H" (bad) ones is "G". Those, as far as I know, are good. They made the change some time in 2001. I'm guessing that the 2001.5's have the "H" packs, but I'm not certain. But don't you have a Mexican Jetta? I'm not sure if VW shipped these packs there. -Craig |
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Dealers here in Ontario are pulling coil packs off of cars on the lot to help customers get back on the road. They're as frustrated as the customers about this problem. The question I have is, how did VW let this problem work its way down to production vehicles? For a auto giant as large as VW, they must have some rigorous quality control testing on outsourced components. When they do a deal with suppliers you would think they would get at least 6-months lead time to test the first batch of components before putting them on production vehicles, or am I naive about the way car companies use JIT parts sourcing to keep inventories and production costs low. How on earth any VW exec thinks that anyone will shell out $50k+ on a Phaeton when the current high-end model (ie. Passat) has a problem like this is beyond me. |
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| I have a Passat not Jetta. There is no sticker in the door jam. I removed the cover to the engine but did not see any sticker or number on the engine block area facing the windshield. Maybe its on the cover. Should I check again. I think I'll call the dealer and find out. Bet they say they know nothing about it. | |
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Someone here has a Jetta. No sticker on the door jam? That's odd. The part number is on the coil itself (actually, all 4 of them). It's not a sticker (I don't think). It's imprinted on the part itself. The section of the part that has the part number is the "back side" - the side that faces the windshield. -Craig |
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Still can't find any number (I did see the Audi rings on the block though!). I'll ask my neighbor to look. Anyway, mine is a 2001.5 Passat manufactured in 2001 - the first run of the soon to be 2002. I hope that this means no problem. Oh well. OK. I found a number 088 D. Is that it? |
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you can put six or eight coil packs in environmental ovens and pulse 'em for a half year and they may well all test OK. things are a little different when you get into production... the coil winder machines are cranked up in speed, you use larger spools of wire and may get twist in the coils, coils are bumped along in transport cartons from one work station to another, rubbing all the way, where you used hand labor to move the prototypes around on the production stations, now machines clamp 'em around the middle, squeeze, and rotate... lots of changes. anything wrong in the entire process that nicks a wire, scratches insulation, or puts kinks in the windings, you are set up for part failure in a HV impulse coil. and that's what happens. you have to be in production and testing on the buyers to find these issues. |
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Well it happened! One coil went out on my 2002 1.8T Passat built in March 2002. I've been singing the praises of this car, and I still love it, but I've had 2 Infinitis with no problems, just routine maintainance, and this is my first German car since my Porsche that I owned 20 years ago. The dealer has been very good about it. they towed my car in and gave me a rental car, however they will not replace all 4 coils because of the demand for the part. I don't like driving the car knowing that the other 3 coils could go out at any time. Hopefully when they get caught up on production, they'll have a recall and replace all of the faulty coils I'm still very impressed with the car but I hope this is not an indication of things to come. If VW had not extended the warantee to 4 years, I probably would not have bought a Passat. |
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| Seems like the people who are having problems with coil packs have the turbo engine. Are the V6 engines at risk of coil pack problems? | |
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