HELP NEEDED URGENTLY

[wickedweed]

Hi v dubbers
im in need of some help and hopefully some one here can assist.its a mk1 1.6 gti with a single grill.
Im haveing trouble with my headlights basicaly what happens is my side lights come on ok and my main driveing beam comes on ok,but as soon as i put my full beams on the passenger light goes back to side light with only the drivers side on full beam.ive had to change the wireing loom on the head lights cuz the old one was cut and joined in so many places and i thought this was the problem but its exactly as it was before i started
ive checked the main headlight switch and the storks  and fuses and every thing seems fine so im confused can any one help.............

[topher]

you've checked everything but the bulb ?

[wickedweed]

I have checked the bulbs and the earths under the dash ,,,its doing my head in 

[Agreeable Slick]

they are dual filament bulbs mate, just cos one works, doesn't mean the other does. Down halfords, get two 472 Super Brilliance bulbs ( 2 for 1 ) should be about £12.99

[wickedweed]

ok il try some new ones and see ....ta

[wickedweed]

okay then ,just swapped the bulbs over from a mk1 1.3 cab and its doing exactly the same thing  cant understand it ...

[Agreeable Slick]

see what colour the blocks are connectiing to the bulbs, mine has a black block and a white block, the white block is meant for when it is only single lights, and no spots, so keeps the dipped beam on when main beam is activated. Black one cancels the dipped when main is activated. Might just have a different block on each bulb.

[wickedweed]

cheers slick the loom is from a single grill and has white blocks on both lights  so

[Agreeable Slick]

might be worth checking a different loom mate, see if you can nab one from a mk2 as they had both blocks wired onto the loom. Could just be the block that is causing the problem.

[wickedweed]

so would a mk2 fit