H4 headlight upgrade.. but to what?

The versions seem to have a letter after the part number... xxxx1005a, xxxz1005b etc. Not sure which letter referenced the change in design....probably xxxx1005d onwards
 
Thanks for that. Do you have the link to these? I can't see them, just vast numbers of replacement bulbs!
 
Has anyone thought of putting one of these on a HUD to give a little backup to H4s?
Could be seriously cool and will definitely enhance the vision capability!
 
That's what I call approaching the problem from the other end! No lights? Use sensors instead!

Reminds me of the (apocryphal?) tale of the black porsche eventually caught driving at humungeous speeds, lightless, on a motorway at dead of night. The driver turned out to be an RAF pilot wearing his hi-tech combat helmet with top-line HUD and night vision gear.

I'd settle for the Eyeball Mk1 radar, supported by modest headlights that actually throw a proper beam!:)
 
Thanks @Paynewright for the information I didnt realise the problem with the DRL holders must of missed that in all the pages I have read on the forum about the swap to H7s. I pressume the lights I have are the upgraded version .But I suppose that depends where they are sourcing their stock from . The Deutsche Parts ones have a wired in bulb holder that twists out on an arm do you have a link for these after market wire in holders just for comparison
Thanks for your reply and link - nice to see Deutsche Parts still have them in stock.
Could you explain further about 'the bulb fault with the LED DRLs'?
Is that something which could be ironed out by Carista/VCDS? My current DRLs are the basic non-LED type, which it would be nice (but not essential) to upgrade.
Hi,It was just the bulb warning light on I couldnt find anything on Carista to sort the bulb fault so left it for now,I have read it can easily be sorted with VCDS
 
He means the earlier H7 lights had a problem with the DRL - the click in connectors of the bulb holder can overheat due to a resistive connection. The later ones were modified as a wired bulb holder. You can also buy a replacement wired bulb holder to fit the older units (snip a couple of cables and solder in) which is what I did for peace of mind rather than them being melted!

Hope that clarifies.

Ian
Hi Ian thanks for that just read you earlier post on this. where did you buy the replacement bulb holders from as I actually managed to bend one of the contacts whilst fitting the LED bulb so would be nice to change it as it looks a bit weak now
 
Having read the views on this thread, I was leaning towards OEM H7 replacement units until... I spoke to my local (non-specialist - deal with every make), garage, who would be fitting them. They felt H7s gave only a marginal improvement on H4s. Happy to fit whatever I bought, but sceptical about the level of performance, and concerned I might be disappointed.

I then spoke to another, more specialist source.

His view was that OEM H7 light units, using the standard reflector lens, weren't worth the cost and bother.
He felt that aftermarket light units, using projector lens, even if used with H7s (and especially with enhanced performance bulbs, like Osram Nightbreakers), would give a noticeable improvement over the OEM H7s and especially the current lousy H4s.

Interesting! That puts a different complexion on it. Any thoughts?
 
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Thread 'Modded H7's' Modded H7's
This is what I did, this approach is probably not for everyone but it's very effective for rhe money and effort I put in. I will be doing another set of H7's and also planning on trying something similar with some H4's in the next few weeks, when I do I'll put up some pictures or video.
 

My thoughts remain the same. My H7's do produce a better light output than the H4's and they're perfectly adequate for me and they look better with the DLR containing LED bulbs shifted down near the indicators. I'm not saying projectors aren't worth the extra cost. I honestly don't have anything experience with them but modded versions in the thread linked in post 30 do look quite impressive.
 
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Interesting! That puts a different complexion on it. Any thoughts?
I’ve got H7 lights on mine and they are entirely adequate, I’ve never thought they need to be better. Admittedly not as good in comparison to HID or LED lights but as a set of halogen lights the H7 units are good.
 
As you have seen yourself, the H4s appear almost dangerous to most of us who have used them.

You may be overthinking it. A couple of hundred quid will get you uprated H7s which aren't fantastic, but are decent.

Aftermarket will be twice that.

Anyway, you pays your money and you makes your choice!!
 
Hi Ian thanks for that just read you earlier post on this. where did you buy the replacement bulb holders from as I actually managed to bend one of the contacts whilst fitting the LED bulb so would be nice to change it as it looks a bit weak now
Stu,

They are a VW part called a ‘Repair Kit’ 7E0 998 953. Bit pricey for a design error at £20 each !
 
Stu,

They are a VW part called a ‘Repair Kit’ 7E0 998 953. Bit pricey for a design error at £20 each !
Cheers @Paynewright just cost me £24 from cov vw van centre round the corner,like you say pricey even the bloke on the counter was surprised at the cost.But soldered on now and repaired . much happier as the contact I bent actually fell apart as I pulled the bulb out the original fitting
 
As you have seen yourself, the H4s appear almost dangerous to most of us who have used them.

You may be overthinking it. A couple of hundred quid will get you uprated H7s which aren't fantastic, but are decent.

Aftermarket will be twice that.

Anyway, you pays your money and you makes your choice!!
That sounds very sage advice, if (as it seems), those with H7 conversions deem them satisfactory in practice.

I therefore decided to follow that line, if possible. However, so far, it hasn't proved easy.

E-Bay, as suggested by many, has a wealth of spare headlight assemblies, but very few adverts state that they are H7s - or mention bulbs at all.
One, which seemed promising, turned out oin enquiry to be H4s; another seller hasn't responded to my email - so I take it his are H4s, too. Stands to reason that everyone seeking to upgrade from standard will also be wanting to offload their useless H4s. There are unlikely to be so many Caravelle owners wanting to upgrade from H7, because they are a better light, so there's less incentive, and there are also far fewer Caravelles around.

I therefore decided to try the Eurowagens, which are advertised on E-Bay at £229.90. The advert states these aren't OEM, but are brand-new and it claims they contain H7 bulbs. I checked the compatability chart provided, and this says they are NOT compatible with my van. I can't see any reason why they shouldn't be - but their lights are not OEM, so maybe there is some underlying difference?
I therefore entered into email correspondence with Eurowagens, supplying my VIN number no less than three times. Their eventual conclusion - my van uses H4 lights (I know that!!), and they don't stock H4s - I would need advice from an Automotive Engineer about compatability.

They say: ' ... converting your headlights... this is not a quick or simple change. These may fit into your vehicle but the power, plugs and wiring would be different, these would all need to be changed to accommodate the headlights you would like to install. We understand that H4 bulbs are not the best, and there is no form of upgrade which we have that would be a plug and play replacement for your current headlights. We would advise to speak with the specialist and have a look online to see what others have done to change the headlights'.

So, it appears that the search for second-hand H7s must continue, unless I take the easy (but expensive) way out and buy the THQ V3's, with the additional choice then to be made of whether to have really good lamps (but technically illegal/unlawful), or lesser ones which to some extent negate the point of spending so much on lighting.

I do wish VW hadn't been so cynical and disregarding of customer safety in their original lighting specification. But that's the nature of the beast.
 
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That sounds very sage advice, if (as it seems), those with H7 conversions deem them satisfactory in practice.

I therefore decided to follow that line, if possible. However, so far, it hasn't proved easy.

E-Bay, as suggested by many, has a wealth of spare headlight assemblies, but very few adverts state that they are H7s - or mention bulbs at all.
One, which seemed promising, turned out oin enquiry to be H4s; another seller hasn't responded to my email - so I take it his are H4s, too. Stands to reason that everyone seeking to upgrade from standard will also be wanting to offload their useless H4s. There are unlikely to be so many Caravelle owners wanting to upgrade from H7, because they are a better light, so there's less incentive, and there are also far fewer Caravelles around.

I therefore decided to try the Eurowagens, which are advertised on E-Bay at £229.90. The advert states these aren't OEM, but are brand-new and it claims they contain H7 bulbs. I checked the compatability chart provided, and this says they are NOT compatible with my van. I can't see any reason why they shouldn't be - but their lights are not OEM, so maybe there is some underlying difference?
I therefore entered into email correspondence with Eurowagens, supplying my VIN number no less than three times. Their eventual conclusion - my van uses H4 lights (I know that!!), and they don't stock H4s - I would need advice from an Automotive Engineer about compatability.

They say: ' ... converting your headlights... this is not a quick or simple change. These may fit into your vehicle but the power, plugs and wiring would be different, these would all need to be changed to accommodate the headlights you would like to install. We understand that H4 bulbs are not the best, and there is no form of upgrade which we have that would be a plug and play replacement for your current headlights. We would advise to speak with the specialist and have a look online to see what others have done to change the headlights'.

So, it appears that the search for second-hand H7s must continue, unless I take the easy (but expensive) way out and buy the THQ V3's, with the additional choice then to be made of whether to have really good lamps (but technically illegal/unlawful), or lesser ones which to some extent negate the point of spending so much on lighting.

I do wish VW hadn't been so cynical and disregarding of customer safety in their original lighting specification. But that's the nature of the beast.
Patience oh benighted one
:slow rofl:

A pair will appear eventually. As said above, try also the abomination that is the FB marketplace.

(apologies for the flight of fancy, still sobering up from the Adnams Brewery Tour
:sleep:)
 
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