I just chose to write to Niko at first to get a quote for the 300E Depo lights and the clear corners and the smoked and red tails. Then I inquired into 500E lights. At first he said they didn't exist, but he checked and said he could get them.

He's a good communicator, and his prices were pretty good compared to PUMA, and he was selling me the corners, tails and 500E lights all at once. The only issue is the shipping time from Germany. But this package all together costs so much I'm willing wait longer to save a few bucks.

Yes I am doing the HID install the way you said.
On Ebay I bought a set containing, Hella ballasts and Osram 4100k D2S bulbs. I bought Caspers Electronics H4 adapters/glare shields. I will be putting these in the 500E H4 headlights. The input to the ballasts are 9006 pigtails, all I need to do is connect that to an H4 harness. So plug the H4 power into the new harness, that runs into the ballasts and out throught the bulb which is fitted into the reflector with the Caspers Electronics H4 adapter/shield.
Of course I hope its this easy to actually do. I just have the parts now. Need to figure out a good spot for the ballasts.

By the way for those who care, the Caspers shields were cut for Phillips bulbs, not Osram. My osram bulbs have an extra plastic ring around the edge that didn't let it fit into the caspers adapters. I had to Dremel them off. Now it fits perfectly. Don't worry its not a major piece it doesn't effect anything. But if you are goign to use Caspers shields and don't want the extra trouble buy Phillips bulbs.

The vacuum levelers are not on my to do list as of now. I've spent way too much money on these lights already. If it looks like I need them after having them without for awhile I'll put it on the to do list.
Same goes for the Euro wipers. Its too expensive to just put on as an accessory. Seriously two small motors and wiper arms costing hundreds? It's nice to have and looks more authentic, but I'll do without it until I can get it cheap.

While HID driving lights would be nice, that's a waste of money, I don't use them enough to justify the additional cost. I'm using PIAA 85 watt Xtreme White H3. BEfore half the board chimes in and says things like "Sylvania Silverstars are brighter than baseball stadium floodlights or everything but Silverstars are cheap Korean made blue coated bulbs", I've made up my mind. I've used many different halogen bulbs. ANd to be honest, in the 9004 and 9007 size I don't think any halogen bulb is great. They all suck. H4's and probably H7's are the real test. I've been to Asia a number of times on a semi-regular basis and tried many different brands of bulbs. The major market brands in Japan, like PIAA, Gigalux, Raybrig, Polarg, Bellof, Catz are all very bright. Some brighter than others, but all the bashing of foreign bulbs comes from the people who buy the $20 junk Korean made bulbs from Ebay. Even the US market PIAA bulbs aren't as good as the Japanese market ones. They always seemed to be powered down in brightness. Most of the higher model lines of the brands I listed above are brighter than Silverstars. However there are a few that are specifially colored for show cars, like bulbs that are dark blue in color, advertised as "ocean blue". BUt those are exceptions. True they aren't easily accessible to Americans. But they are bright. I currently use PIAA Xtreme Force H4 bulbs in my E30 with Catz ballasts/boosters, and my lights are way brighter than any Silverstar. I know to some people that's heresy, but until you have compared the better Japanese market brands and models with Silverstars, stop bashing it. Upgrading to euro reflectors make alot of difference. That plus better bulbs is the way to go.

Thanks for the offer for Euro parts. I didn't see any group buy offers when I first started pricing these items. ANd I saw one thread where no one responded to one guy asking about a group buy for 500E headlights. So I just went ahead and priced it myself. If I do additional projects in the future I'll let you know.

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1991 W124 300e 4-MATIC