A bulb that blows at fairly regular intervals can be put down to that units less than satisfactory earthing, this causes irregular voltage through the bulb and shortens its life.
If one of your bulbs keeps blowing after short intervals, check where the units earth lead is attached to the body, remove it, clean it and refix it securely, apply a little Vasaline too to prevent future corrosion.

We had this on a Citroen Saxo, one head light blowing after a couple of months same bulb all the time, it was suggested by a garage it might be an earth fault and once that was cleaned up and resecured the light never blew again??

Worth checking?

2013 MY has an HB3 bulb, single filament and uses a shutter for dip, all previous models had a separate bulb for main and dip. Therefore 1 filament is on all the time.

Plus side, excluding HID lighting, since 2007 we have had 3 variations of standard headlamp and current HB3 is by far the best. 2011 change to projector lamps was by far a big step backwords from 2007.

Negative side, when bulb goes you have neither main or dip. All FL2's (3) Gone
2011 Mercedes C180 CGI Gone
FL2 GS Auto SD with heated leather, factory tints, alloy spare and a few other bits.

Hi everyone is it safe to use 100w xenon rainbow bulbs ,will the do any damage to my headlights ,

They will melt the plastic lens and reflectors

Thank you i wont be fitting them , dont want to buy two headlights 👹👹

They're also not legal for use on the road and will be an MoT fail if spotted by the tester.

Thank you will not be fitting them lol 😜😜👹👹👍🏿👍🏿👍🏿

My LH side bulb blew today so changed both,so they are the same type / make ,but when i was refitting it the long plastic retainig thing come off and fell down inside the wheel arch and body ,cant get it back ,so do they need to be fitted back on , 👻👻

Past master wrote:

2 FRL2s, never had a bulb go.

Spoke too soon. Offside went this morning - first foggy day of the year  Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Does anyone know where the headlight units are earthed to the bodywork or does it just go back to the battery earth terminal somehow? All I can see is a big plug on the back of the unit. 3 x FL1 2 manual + 1 auto
5 x FL2 4 manual + 1 auto
Now Discovery Sport P250 MHEV SE

no separate earth connection that I can see on my MYH13 - just the wiring block 

And congratulations to the dealer in Cambridge for supplying the wrong bulb first time. That's two twenty mile round trips. Should have given Dan a buzz I suppose. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

I thought it was one bulb for dipped and one for main, must look again. It does make sense as I thought it strange that both main and dipped stopped working at same time.

2013 model is a single filament HB3 with shutter for dip.
I have just fitted Halfords + 120% and they are vast improvement.
I had nightbreakers and they were so bad I refitted originals. Possibly sold fakes from fleabay. All FL2's (3) Gone
2011 Mercedes C180 CGI Gone
FL2 GS Auto SD with heated leather, factory tints, alloy spare and a few other bits.

Hello

Is HB3 different from H7. I guess it is , but all I can see on the Halfords website is H7.

Both original headlight bulbs have gone within 4 days of each other (MY13)

Hope its not a change every month thing from now on !