RichM

Well-Known Member

• Sep 27, 2011

• #1

One of my headlights isn't working. Swapped the bulbs over but it made no difference. Side/parking lights work on both sides though. Do the headlights have separate fuses?

 

J

jailon

Active Member

• Sep 27, 2011

• #2

Depends on what vehicle you're talking about ?

 

RichM

Well-Known Member

• Sep 27, 2011

• #3

jailon said:

Depends on what vehicle you're talking about ?

Click to expand...

300 tdi

 

Dewin

Well-Known Member

• Sep 27, 2011

• #4

Dodgy connection or bad earth to the light, a common problem.

 

The Mad Hat Man

Well-Known Member

LZIR Despatch Agent

• Sep 27, 2011

• #5

change the wiring to the upgraded system in the FAQ section.

 

RichM

Well-Known Member

• Sep 27, 2011

• #6

Could it be a fuse?

 

J

jyhelle

New Member

• Sep 27, 2011

• #7

on my '95 300 TDi, in the fascia fuse box : headlamps are F10 (left) and F11 (right) and main beam F5 (L) and F4(R)

 

RichM

Well-Known Member

• Sep 28, 2011

• #8

Just had a thought, the problem occurred shortly after taking it through a car wash with underbody jets. Does this give any indication as to what it killed?

So:

- Mainbeam/dipped beam LH doesn't work but sidelights do
- RH mainbeam/dipped beam works fine
- Dash lights work
- Checked bulbs
- Haven't checked fuses yet

 

Last edited: Sep 28, 2011

J

jyhelle

New Member

• Sep 28, 2011

• #9

I would check fuses and tweak connectors first, then take a voltmeter to check from fuse to bulb (or the other way round) checking if +12 is present after each connector, there aren't so many places to check
if you don't have it you should download the ETM (electrical troubleshooting manual) for your model-year Disco (or take the full RAVE), that will help you to quickly locate connectors, pins and cable colors
wish you a good trip in the electrical guts of the beast