no low beam

dubsurfer Commited Dubber

52 posts · joined Apr 2008 · 23 Nov 2009, 8:41 am

#748717

mornin all. my wifes Lbug just failed rego for having no low beam. have check fuses relay all seem ok. Dont think both globes would have gone at same time....but thats my next move.............any suggestions???
just out of interest which is low beam fuse?
thanks in advance

ratty 63 Custom Title Time!

1,083 posts · joined Oct 2003 · 23 Nov 2009, 10:40 am

#748728

Could be both low beam bulbs have gone at the same time - easiest place to start looking. (if this is the case, check the output voltage from your alternator - we have a fleet of cheap Jap hatches that are used as delivery cars, they have been known to have the regulator in the alternator fail and allow 30+ volts into the battery. Doesn't take long before the battery dies and the bulbs - particularly the headlights - blow)

Check also that the low beam fuse is making good contact in the fuse holder - crusty contacts can cause all sorts of strange effects!

Burnt contacts in the headlight relay will also cause both low beams to fail - what size bulbs are you using? Stock headlight relays can only handle lower wattage bulbs (around 50W a side), so if the car has been fitted with bulbs that are bigger than that then the relay could be fried.

Let us know what you find - could be a good reference for someone else with the same problem in the future....

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. 🙂

Bizarre Moderator The artist formerly known as blue74l

12,787 posts · joined Aug 2002 · 23 Nov 2009, 11:09 am

#748732

Low beam is fuses 3 and 4

Down load wiring diagrams from here - there are a couple that are close

http://www.vintagebus.com/wiring/index.html

Power goes to the on/off dimmer switch on the RHS
Power then goes to fuses 3 and 4

My guess is that the switch has fried

If you have a multimeter see is you have juice on the live side
I reckon you wont

If you dont - take the cover strip off your dash and see if you have it up there.

If you are not comfortable - take it to a auto electrician

But download the wiring diagram to make his life easy

Futue te ipsum!!!

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 · 23 Nov 2009, 1:01 pm

#748748

Hi

The ceramic fuses used in VWs are very prone to corrosion, the left low beam on my sons car has stopped working twice with a build up of corrosion even after cleaning.

Use a test light, not a multi meter (a multi meter will still show 12 volt at a high resistance connection) to check power at each fuse terminal end, then check power at the bulb connector, wiring is brown = earth, grey = parkers, yellow = low beam & white = high beam.

If you still have high beam its unlikely that the switch is the problem, is the relay clicking.

Steve

dubsurfer Commited Dubber

52 posts · joined Apr 2008 · 23 Nov 2009, 1:58 pm

#748752

wow.............thanks guys, changed fuses, changed bulbs, relay is clicking, checked swith............have thrown the towel in dropped car at auto electrician and gone to pub!!! will let u know what the sparkie thinks. thanks for all your help

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 23 Nov 2009, 4:14 pm

#748764

yeah the Yellow wire is Low Beam

so check its pushed on every where switch and fuse boxes both sides give them all a wriggle it may fix easy

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 23 Nov 2009, 4:15 pm

#748765

yeah the Yellow wire is Low Beam

so check its pushed on every where switch and fuse boxes both sides give them all a wriggle it may fix easy

I read it on FACEBOOK so it must be true

http://forums.aussieveedubbers.com/viewtopic.php?tid=91278&page=1#pid848630

http://forums.aussieveedubbers.com/viewtopic.php?tid=63561&page=1#pid624099

http://forums.aussieveedubbers.com/viewtopic.php?tid=4832&page=1#pid452603

http://forums.aussieveedubbers.com/viewtopic.php?tid=60650&page=1#pid574409

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 · 23 Nov 2009, 5:33 pm

#748777

abit late now but for anyone else facing this prob with both going lows going out at once check the yellow wire from the relay to the fuses hasnt come off
Lbug fuses boxes turn into a jungle behind once a few POs have added a few extra wires

greedy53 Bishop of Volkswagenism

3,062 posts · joined Mar 2006 · 25 Nov 2009, 4:05 am

#749051

i had this prob on my ute and turned out to be the relay, it clicked ok but just didnt hold .after scratching my head it turned out to be the relay some water had got in and buggered the small switch

👍👍😂🙅🥷😬🤓

Bizarre Moderator The artist formerly known as blue74l

12,787 posts · joined Aug 2002 · 25 Nov 2009, 7:53 am

#749072

On L bugs the relay sits underneath the drain tube from the air box

This tube cracks/leaks/whatever and i have had many relays full of water

Futue te ipsum!!!