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May 2nd, 2006, 04:56
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#1
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Newbie
Join Date: Apr 2006
Location: wexford, ireland
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glow plug light flashing?
sorry if somebody has started a thread on this before!
i have a slight problem with my passats glow plug light that is getting really annoying 
when i turn on the ignition, the glow plug light comes on for an instant and then goes out.......... for about 20 seconds, then it starts flashing away at me like an indicator!
their has been no change in perfomance what-so-ever, and no problems in starting the car at all!
i have checked the brake lights with a friends help and all seem to be working fine,
the car is an unmolested 97 tdi s passat 110bhp.
all and any help would be greatly appreciated 
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May 5th, 2006, 01:56
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#2
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Newbie
Join Date: Mar 2006
Location: bombay
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had a similar prob . not sure which thread the solution is featured in but it says that you need to check your plugs with a volt meter to see if they need to be replaced.
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May 5th, 2006, 05:08
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#3
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Veteran Member
Join Date: Oct 2005
Location: Lazear,Colorado Population 60
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Glow Plug Light
I had the same problem on my Jetta. Turned out it was the brake light switch went out. Does your cruise control work? Mine didn't when the switch went out.
__________________
<===Lefty===
2000 GLS Jetta TDI 48.5 MPG 265k and Counting
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May 5th, 2006, 05:24
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#4
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Veteran Member
Join Date: May 2005
Location: ia
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don't know about the b4's but the a4's its the brake lite switch.
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May 5th, 2006, 05:39
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#5
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ToofTek Inventor
Join Date: Oct 2005
Location: Newark, OH
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Flashing glow plug light on an A4 means an electrical fault in a critical system. IIRC, it's the same thing on the B4, but I'm not certain. Brake light switch is the most common failure mode on A4s. Scan the car with VAG-COM.
On an A2, it means that the water separator needs drained. 
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May 5th, 2006, 07:18
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#6
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Newbie
Join Date: Apr 2006
Location: wexford, ireland
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well i got it hooked up to a VAGcom and the answer it gave was
"electronic control unit blocked"
the guy cleared it for me, but couldnt actually tell me what the problem was in the first place?
i'll just have to hope that it doesnt happen again!,
if it does, i'll have to get it to a main dealer and have them run a full electronics test 
thanks guys!
Mack
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May 5th, 2006, 07:21
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#7
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Veteran Member
Join Date: Jul 2003
Location: Toronto, ON
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A burnt out brake light bulb can also trigger a flashing glow plug icon.
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May 5th, 2006, 07:21
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#8
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ToofTek Inventor
Join Date: Oct 2005
Location: Newark, OH
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Do you have an aftermarket stereo head unit?
If so, try unplugging it, and have it hooked up to a VAG-COM again.
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May 6th, 2006, 11:17
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#9
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Veteran Member
Join Date: Aug 2004
Location: Crescent Beach, FL.
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Blinking GP light
Had the same problem with my Y2K Jetta. Was a broken wire on #3 injector
__________________
"Come to kindly terms with your ass, for it bears you."
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