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Posted

Hi! 

I have not heard of this problem occurring before. Could it be that the bulbs were installed upside down for something, or that incorrect bulbs were installed?

Any other ideas greatly appreciated!

Thanks

Rico

Posted

From memory, I'm not sure it's possible to fit them upside down. There's only one way for them to lock in place.

Could be the bulb has a fingerprint on it, or it's just diminished with age.

Posted
1 hour ago, rico05 said:

Hi! 

I have not heard of this problem occurring before. Could it be that the bulbs were installed upside down for something, or that incorrect bulbs were installed?

Any other ideas greatly appreciated!

Thanks

Rico

How about replacing them with new ones, or is that financially prohibitive ?

Posted
25 minutes ago, J Henderson said:

From memory, I'm not sure it's possible to fit them upside down. There's only one way for them to lock in place.

Could be the bulb has a fingerprint on it, or it's just diminished with age.

Both are very possible, worth checking 

Posted
12 minutes ago, royoftherovers said:

How about replacing them with new ones, or is that financially prohibitive ?

main/high beam is cheap (if memory serves £8), only dipped ones could be Xenon which could be pricey. 

Posted
22 minutes ago, Linas.P said:

main/high beam is cheap (if memory serves £8), only dipped ones could be xenon which could be pricey. 

He needs them to pass the M.O.T Linas, so he`d better priorise his spending plans.🤣

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Posted

I'd check that the bulbs are sitting properly in their holder and that the bulb holder is located properly in the headlight. Its a bit fiddly fitting those bulbs and possibly fitted incorrectly. 

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Posted

Thanks, I can try that without disassembling it right? Just from the back? 

Posted

Yes. But you might need to remove or reposition the air filter housing, or washer fluid filler neck, to gain adequate access.

20180706_135705.thumb.jpg.3ae46c0bb3bd06aafd9498fcb0f93869.jpg

Posted

Yes Rico. And as John said above on the passenger side you need to remove the windscreen washer bottle filler neck. 10mm bolt dead easy to remove. As for the drivers side it depends if you have Big hands or small ones. It's not overly necessary to remove the air box as there's a bit more than just enough room to remove the bulb cover.

There are a good number of videos on YouTube on how to change bulbs on the is250/220d. I recommend you watch them first to get a good picture of what is involved. 

Posted

Super, thank you! So the housing etc. on the is220 and is 250 is the same or at least similar?

As for the intensity not being intense enough, more turtle wax poliahing7and sanding?

Posted

Not sure about the intensity. Never heard that one before in 35 years driving. Just renew the main beam bulbs. Maybe the ones in your car are original and maybe fading. Xenon bulbs kind of fade over time so I imagine 'normal ' bulbs do to. The headlights in 250 and 220d are the same spec dependant (some have Xenon others don't)


Posted

The time has come to attempt the repairs. Does it matter if I use Xenon or Halogen bulbs. Thanks again for all of your help everyone 

Posted

I suppose trying higher inensity bulbs might also increase the brightness to the required limit 

Posted

Thanks! I don't really care but am not sure what type the currently installed bulbs are. 

Posted

Rico. One way to tell if you have zenon is. At night when you turn on your headlights do you notice them going up and down? If so you have zenon. If not you have halogen. And NO you can not change from a halogen bulb to a zenon. Far too much to change. 

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Posted

Then you've got zenon bulbs. They must be worn out by now and need changing. They are more expensive than halogen bulbs. I've read you can fit them yourself But you have to be extra careful not to touch any of the glass areas. 

BUT the zenon are Dipped headlight. The main beam is halogen. A favourite upgrade with fellow IS owners is Osram Night Breaker Laser. HB3 model.

Posted

Ah okay. I think the direction and intensity problems are only with the main beam bulb. So that'll be a halogen? 

Posted

Interesting. My CT failed for the same reason. The bulb had blown the week before and I replaced it myself too. Strange 

Posted

Yes Rico. Halogen. Get the ones that's recommended by lots on here and on the Ford forum I used to be on.

Posted

Okay I'm still confused with the bulb 😕 the mot failure just says headlamp aim projected beam image is incorrect

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