Oil Light stayed on ?? LED

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 18 Jun 2010, 8:53 pm

#785621

My Beetles oil light stayed on yesterday...
[My Wife was driving My Beetle]

I tested the sender with a FLUKE multimeter and the resistance changed when I started the engine...
so the oil sender is OK.. [also not very old]
but the light stayed on...

the oil light stayed on again today.. in the morning..

but was going out this afternoon... [wife still driving..]

My Oil light is actually a 15000mcd bright 10mm LED..
with a resistor in the lead.. for 12 Volts..

so, I'm thinking its a problem with the LED ???

[maybe LEDs don't last forever..lol
but instead of going OFF they Go ON... lol]

LEE

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- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 · 18 Jun 2010, 9:43 pm

#785641

you got current leakage somewhere. that led isn't dead it on therefor it works.
leds only require a few 10s of mili-amps so even small leakage will light them.

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

waveman1500 Also rides a Honda

1,346 posts · joined Dec 2009 · 19 Jun 2010, 5:53 pm

#785765

I'd just swap it back to a normal globe. The sender system was designed to work with an incandescent globe of a certain resistance, so presumably going back to the factory setup will eliminate these problems.

1972 VW S-Bug - For Sale!
1968-onwards Beetle panels and glass for sale

squizy Thinking about another dub...maybe

4,082 posts · joined Dec 2002 · 19 Jun 2010, 6:19 pm

#785774

Have you checked your oil? 😉

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 19 Jun 2010, 7:33 pm

#785796

waveman1500 wrote:I'd just swap it back to a normal globe. The sender system was designed to work with an incandescent globe of a certain resistance, so presumably going back to the factory setup will eliminate these problems.

Agreed, why over complicate things, the light is only on for 2 secs and LEDs dont like unstable voltage like when an oil light is only just flickering if your idle drops down to low

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 20 Jun 2010, 1:33 am

#785842

squizy wrote:Have you checked your oil? 😉

Yes...
New oil and its full...

only problem... its Castrol GTX2.. lol

Maybe that's the problem???

LEE

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 20 Jun 2010, 1:40 am

#785843

Joel wrote:
waveman1500 wrote:I'd just swap it back to a normal globe. The sender system was designed to work with an incandescent globe of a certain resistance, so presumably going back to the factory setup will eliminate these problems.
Agreed, why over complicate things, the light is only on for 2 secs and LEDs dont like unstable voltage like when an oil light is only just flickering if your idle drops down to low

Yes,
I will do that...
I forgot about the changing resistance of the sender... lol

Looks like the problem isn't the LED...
Working again today.... lol

but flasher and Alternator lights have gone out...
had to connect a lamp to the alternator to drive the beetle today...

Now blinker LED is working but very low in brightness...??
blinkers themselves work OK... even when telltale LED wasn't

I have to fit a couple of Fuseboxes with the push in fuses..
have been putting it off for a year... lol

too many wires [connectors] going to the fusebox...lol

LEE

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

ratty 63 Custom Title Time!

1,083 posts · joined Oct 2003 · 22 Jun 2010, 12:20 am

#786223

yep, sounds like a bad connection somewhere. I considered converting my warning lights to LED, but the extra mucking about with load resistors and the possibility of the same sorts of problems that you are experiencing turned me off the conversion.

Just a thought though, have you checked the battery/charge voltage? As you probably know, LED's don't survive very long if the voltage is too high - normal bulbs are a little more tolerant....

Let us know how you get on...

R 🙂

40hp, 6V and ...er... slowly making improvements 😂

It's nice to be important, but it's more important to be nice!

Founding member of the Gold Coast Dub Club Inc. 🙂