A consensus on HID upgrade?
I am looking for upgrading low beams only. I would not go over 6000K. A kit which is a simple "plug and pray" is preferred over the one requiring a modification of wiring or headlight housing.
A search on eBay shows that more expensive ($300) kits by MTEC/Maruta advertized as a simple plug-in solution. Did anybody try them? Are they worth extra money over other $100 and under kits?
Any advise is greatly appreciated.
Thank you!
This is the consensus on this forum. I have this kit in my low beams, and these are error-free.
You could also go with DDM Tuning, but make sure to buy the error code eliminators with these. Several people have this kit, and I have this kit in my fogs.

How long have you had it (reliability)? 5000K is very white but nothing blue, correct?
I am considering the HID kit, not immediately. My concern is its reliability and possible warranty void?
It is my understanding that all kits require drilling a hole in low beam round plug (cover) to pass the wires through. I would save the original plugs and try to find something else (junk yard?) to pass the wires through.
I am looking for feedback on reliability, longevity, light distribution pattern, color (does anything above 4500K look blue / purple?), etc.
Did you choose 35W or 55W HIDs?
Please share which kit you used, and how satisfied you are with it?
Thanks!
35W is what Azn sells, they are the best from what ive read. i have the 8ks and love them, pure white with a very small hint of blue. have had em for about 4-5 months now? and they are perfect, no issues what so ever. The LED eye brows do burn out every so often (hasnt happened to me) but Azn is great with sending replacements

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I've had my AZN_Optics kit in my low beams for over half a year, and they've been working flawlessly. 5000K is pure white. There's a slight hint of blue when you first turn them on, but that goes away quickly as the bulb warms up.
And about the noise from the ballasts, you can't really hear it unless you have the hood open.
Oh, and I did get a spare set of low beam caps. I switched back to stock after my first set of bulbs burnt out, but every ballast I have has been working great.
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My previous cars (last 3) were Japanese (Infiniti G35x, Lexus IS250AWD, and Infiniti M35X). All of them had HID headlights. As silly as it sounds, I always buy 1-2 years old cars with low mileage, skipping first year depreciation. However, when you buy used, you don't have too many choices. My '11 C300 4motion Sport is reasonably well-optioned (multimedia/nav, panorama roof, photochromic mirrors and even useless motorized rear shade). For monetary reasons alone, M-B decided to make HID lighting package a separate item. The difference between my previous Japanese and the new C300, when it comes to lighting, is literally day and night. Not only the headlights are dimmer and yellowish, they have a very sharp cut-off line for low beams. That is absolutely unacceptable to me. There are tons of deer - vehicle collisions in my area. My son had one a couple of months ago. I already replaced stock H7 with Silverlights, but the improvement is more aesthetic than functional. Therefore I am looking into the available HID options.
About the upgrades in general and "what the manual states", if you are concerned about the warranty coverage, make sure that your upgrades are easily reversible and non-damaging to the car. For example, instead of drilling the holes somewhere in engine compartment to install HID ballasts, attach them with long cable zip - ties. A dealer will not deny warranty coverage unless they can claim that your upgrade directly caused the problem, or contributed to failure. Say, if you installed aftermarket HIDs and then your headlight relay melted, your modification likely caused the problem.






