William330 said:
When I was ordering my vehicle (2003 330Ci) I was really torn about getting xenons. So I decided to create a list of pros and cons, which aided my decision:
Xenon Cons:
1) They cost $700
2) They are a lure for thieves looking to rip them out, and resell.
3) They are mechanical (they physically move and reset each time the vehicle is started) which is just another thing that could break later on.
4) While bulb burnouts are rare, replacement xenon bulbs are very expensive.
5) With xenons there is a sharper cutoff in the lighted area ahead of the vehicle, which can cause you to 'overdrive' your lights on dark back roads without street lamps.
Xenon Pros:
1) I would say for some appearance from the outside of the vehicle might fit here, but I literally stood in the dealer parking lot for 30 minutes looking at a 330Ci with xenons, and one without xenons, and though they looked 'different', I didn't think one looked 'better'.
I like how the non-xenon 330Ci has the dual lamp look on each side (with the daytime running lights), which may look less high-tech, but I think it looks more aggressive.
Standing in the lot comparing the two really helped me finalize my decision. I felt there were more disadvantages, and the appearance of either one looked great.
So, I saved the $700, and have no regrets. If the xenons were $200 more, I probably would have gotten them anyway. But paying $700 for headlights on a car that already has excellent headlights, seemed a bit ridiculous.
Hope this helps.
Answers to cons:
5) I don’t really understand what you mean by “overdriving” the lights. The sharper cut off point is there in order to eliminate glare, creating a focused, evenly dispersed beam. The sharper cut off point should be a pro, not a con.
4) Although Xenon bulbs are expensive, by the time you pay to replace them, you’ve already replaced up to 10 halogen bulbs (since HID bulbs can last up to 10 times longer than halogen bulbs). I’d say you’re getting your money’s worth here.
3) If the reason why you don’t purchase something is because you’re worried about it breaking later on, then you shouldn’t purchase any options at all when you’re buying a BMV. The power seating is eventually going to break, the performance tires will wear out faster, the sport suspension might be more expensive to replace once they go out, the leather will crack- the list goes on…
2) It is not likely for anyone to steal BMW HID systems. They would first have to take out the projectors without touching the parabolic reflector that is attached to the projector lens, since doing so would permanently ruin it. Secondly, they would have to remove the ballast, the Bi-Xenon mechanisms, and the Auto-height adjustments without killing themselves from electric shock (which is possible). This whole process will take considerable time and effort, which isn't appealing to a thief.
BMW HID systems are difficult to install into other car makes and it takes major body modifications to accomplish this. In other words, someone who would be interested in putting a BMW HID system in their car would have to spend a lot of money doing modifications on the body of their car in order for everything to fit correctly, so that person would most likely try to find cheap BMW HID components elsewhere instead of risking his life on stealing them, killing himself, and most importantly, the car project.
Xenon (HID) lights are not about the looks. If you’re buying them only for the looks, you shouldn’t be buying them at all. It’s easy to understand why you might think the Xenon lights are a rip off if you’re only concerned about the looks. It’s just like purchasing a BMV- if you’re buying one only for the looks, then you’re not fully appreciating it and you shouldn’t even own one IMHO. HID lights are about nighttime driving safety. With them equipped, it’s easier to notice hazards on the road, since the light is dispersed with high clarity over a wide range. BMW is all about “performance over luxury”. If you’re in it for the looks, you’re not an enthusiast.
If you're going to order a BMV, you have to get HIDs. I shake my head with pity when I see BMVs w/o them- and I'll give you a few reasons why:
1) HID technology is one of many BMW innovations, and now that many car companies are following BMW and equipping their cars w/ HID systems of their own, it would be a shame to not have HIDs on a BMV.
http://www.bmw.co.za/Products/FIRST/Active/act-Headlights.htm [headbang]
2) HID stands for High Intensity Discharge, and it's the best lighting system that you can have for your vehicle. HIDs create light as a discharge from the arc struck between two electrodes when high voltage is passed between them in a sealed chamber filled mostly with Xenon gas, emanating light that is three times the intensity of halogen bulbs while using only a fraction of the power. HIDs last up to ten times longer than halogen bulbs because of the low power needed to function and the lack of a filament.
3) Since this technology is BMW's innovation, it's only natural that BMW's HID systems are top quality in today's car industry. Instead of using parabolic headlamps (reflector headlamps) like other car companies (Infinity, Lexus, etc), BMW uses highly efficient, Bosch ellipsoidal headlamps (projector lamps). This creates a finer cut off than what parabolic headlamps can ever offer, eliminating the stray light above the cut off found in parabolic headlamps. Since you don’t have to worry about glare in halogen bulbs, there isn’t much concern about how fine the light is dispersed. This is why BMW uses ellipsoidal headlamps for their HID equipped vehicles and parabolic lenses in their halogen equipped vehicles. More info about the differences of parabolic and ellipsoidal headlamps can be found here:
http://www.hidforum.com/ayh/about.php
4) To answer the money issue, new HID technology is available for those who are willing to dish out the well-spent $700 dollars. Bi-Xenon technology is provides HID light for the dipped (low) beam and full (high) beam, giving you that extra light when needed in those dark mountain passes. [headbang] Auto-Height Adjustment adjusts the angle of the beam according to the amount of load the car is carrying, so no manual beam angle adjustments are ever necessary. For another $100 dollars, ci owners have all the features mentioned before plus the Adaptive Headlight technology, which angles the headlights left or right up to 15 degrees according to the steering angle.
5) As said before, HID technology isn’t about the looks. However it doesn’t mean the looks don’t play minor role in the purchase: