Verb04

I am about to drop my car with H&R cup kit. Someone told be that after i drop my ride I would have to level my Bi-xenons, cause after the drop they will be aiming to the floor and not the road in front. Anyone had this experience. Please help.
Thanks

Harris

Does yr car have Xenons now? If yes, your auto leveling will do the job for you. If not, you can adjust it manually.

Lynn

If you drop both ends of the car the same amount, you will not need to re-aim the headlights. If the drop at one end is significantly different, you will need to re-aim, regardless of whether you have an auto-leveling system or not.

Verb04

I have the stock 2003 Bi-xenons. I am putting in the H&R cup kit. Will my Xenons Auto level? Or will I have to do it manually?
Thanks

Lynn

The auto-leveling lights are manually aimed, and this is a base line setting with regard to the rest of the car. When weight is added to the passenger or cargo compartment, the auto-leveling feature comes into play. As the rear of the car sags due to the increased weight, the auto-leveling system tilts the lights slightly downward to avoid blinding on-coming drivers.

The question is now "what happens when the suspension is changed and one end is changed more than the other?" Or more precisely, does the auto-leveling system recognize the change and re-aim the headlights or does it only respond to changes in attitude cause by changes in weight? The system could be designed either way. Until an MB tech tells us that the system will respond to the suspension change, it is safer for you and other drivers to assume it does not. Another consideration is, if it does respond to the suspension change, will it still have enough range left to respond to weight changes?

You can aim the headlights youself. There are instructions on the internet and I think I posted a link on this forum once.

Verb04

Thanks Lynn

JimPap

Food for thought for those lowering their cars.

The lights are set with a downward angle. Lower your car and that angle would need to be adjusted to achieve the same throw (forward end point).

Gynecologist MD

I just installed a HID kit, and I adjusted my lights for the other driver's sake.

If you think you still want to adjust your head lights, because you thin k they should be lower or higher, you got a black screw near the top of your headlight. You'll be able to adjust it with a screwdriver. Just do it at night, or in a dark garage or room, and you'll be able to do it easily.

Glyn M Ruck

For lowered car with factory BiX & auto leveling. System can be recalibrated with STAR & a light box.

Most drops done on this forum drop the tail too far & this would require lights to be recalibrated.

Cheap option is to do it manually by trial & error.

timmynabenz

I had factory Xenons (part of lighting package with auto-levelling) and when i lowered my car with H&R's there was no calibration or anything needed

JimPap

timmy,

But was it checked against the correct specs?

No disrespect meant.

timmynabenz

checked against the correct specs? what do you mean?

JimPap

Basically, it probably doesn't technically meet MB specs but that's not to say that it might have turned out better.

nrg_mike

It's always a good idea to check your light level anyway. I drove my car on and off and never even noticed that they were pointing too low after the first year.

Glyn M Ruck

In that case you lowered front & rear by a similar amount so the attitude of the car remained pretty much correct. I suspect you got lucky.

These cars are supposed to be nose down for correct aerodynamics & minimum air going under the car. Look at a side on pic of FrankW's car. That car is perfectly set up. Most cars here are over dropped in the tail for good handling.

With H&R springs I suggest you check everything after a year of use. They are inclined to settle.

When lowering a car the front & rear autoleveling sensors should be recentered & the BiX recalibrated. Otherwise they can read greater deflection on rebound than on compression.

nobli

glyn if you dont quit being such a helpful person, im kickin you off my interwebs!

Glyn M Ruck

Sorry

timmynabenz

LOL nah, my nose is still lower, im not stupid lol

maybe theyre not DEAD on but what i mean, is my lights to me, dont shine high or low after lowering, they still light up the road perfectly and i didnt notice a difference