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T3 warning light

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dr greg Learner Dubber

8 posts · joined Apr 2010 ·

#980305
the light that comes on with the ignition to let you know the filler tank level is OK, then switches off, just stays on unless you turn the engine on and off at least 6 times, I have replaced terminals and sensors etc all over the joint, but it won't go away... any ideas anybody, there must be something somewhere along that chain that's malfunctioning..but what and where!!! It's not something you can ignore and drive on!!!

AA003 Custom Title Time!

1,189 posts · joined Oct 2011 ·

#980307
Do you mean the water level indicator?
I read it on samba, so it must be correct.

Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!😂

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#980319
Any chance you can try a different instrument panel?

Where abouts are you?
Pretty sure I have a spare one here at Abbotsford.
Futue te ipsum!!!

dr greg Learner Dubber

8 posts · joined Apr 2010 ·

#980376
yeas it's water level ind. which is why i don't want to disconnect it., but i did another test today, after the engine warms up ( say 2k), you only have to restart once...

dr greg Learner Dubber

8 posts · joined Apr 2010 ·

#980377
btw, real annoying pop-up on this site offering free apple products that freezes my screen, and i have to restart every time i look here!

AA003 Custom Title Time!

1,189 posts · joined Oct 2011 ·

#980381
It works off the top of the water reservoir. Make sure that the plug is on correctly. Make sure that you have the correct VW coolant. Unscrew it and clean the probes.
I read it on samba, so it must be correct.

Sometimes Volkswagen dealers sell spare parts. Amazing isn't it!😂

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 ·

#980413
Dont know if it's related, I have had a couple of times the temp gauge and warning light come on after going through deep water.
probably happened three times after going through water ~100mm deep, the water splashes up around the engine. The next day the light has come on. Like you, stoped check over and re-start and all is fine.
For me it seems ot be moisture related, have no figured where though.

dr greg Learner Dubber

8 posts · joined Apr 2010 ·

#980432
Hi it's a new sensor new plug new terminal, yet it still comes on when the water level is full...and it hasn't rained here in 3 months so there's no water contamination.

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#980449
Reckon it could be at the other end.
Try pulling the Ribbon cable connector off and reseat it and tell us if that makes a difference
Futue te ipsum!!!

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 ·

#980454
Bizarre, do you mean at the ECU (under the seat?)

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#980455
No. I mean the electronic panel in the control binnacle.

On my first WBX that panel was shot and the light wasn't coming on.
Needed a new panel.

When you take the binnacle cover off there are some ribbon cables that connect to it.
Futue te ipsum!!!

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 ·

#980494
Cool. Have not ventured in there yet 🙂

dr greg Learner Dubber

8 posts · joined Apr 2010 ·

#980785
was trying to avoid pulling the dash out...

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 ·

#980811
dr greg wrote:was trying to avoid pulling the dash out...
It's a piece of piss

You just grab the top of the black plastic cover up near the windscreen and lift.
It is how you get to the brake fluid reservoir.
Then there is a bit of soft plastic that comes off
You can see all once you have done that.
Futue te ipsum!!!