Will the LWR control module need coding?

[Quicksilver]

(I edited the title to more accurately covey the subject question as the original title was incorrect)

Sometime ago I had the insurance company paint the front end.
when they did the Job they also put in new lights. Since then
the auto level feature hasn't worked. Doing some research i
ran across some information that eluded to the fact that the
LWR may need programming. Can someone verify if this is true?
Additionally I'm wondering if the shop put in the right lights.
Anyone know the correct stock number for a 2005 X5 4.4
October build?

Edit: the auto level feature i'm referring to means leveling during
driving. When I start the engine the Lights do their up and down thing
as usual. And with the light switch in "A" the lights move left and right as well.

[crystalworks]

If your lights are doing the up/down and left/right on startup... all sounds well with what they put in. Do they turn right and then back with a right turn when in Automatic? If so, I think you are good.

What makes you think they are not moving up and down while driving? I guess to test you could manually manipulate the lever on the control arm (or wherever the sensor is mounted) to exaggerate the up/down to verify functionality.

[Quicksilver]

I think that because their not moving up and down while driving.
We have a 5 series so I know what it looks like when it works.

Thanks for the (manipulate the lever on the control arm)
suggestion. However there are 2 levers one front and one back.
I'm sure it would be a neat trick to manipulate the 2 levers.
But thanks anyway.

Originally Posted by crystalworks

What makes you think they are not moving up and down while driving? I guess to test you could manually manipulate the lever on the control arm (or wherever the sensor is mounted) to exaggerate the up/down to verify functionality.

[crystalworks]

Originally Posted by Quicksilver

I think that because their not moving up and down while driving.
We have a 5 series so I know what it looks like when it works.

Thanks for the (manipulate the lever on the control arm)
suggestion. However there are 2 levers one front and one back.
I'm sure it would be a neat trick to manipulate the 2 levers.
But thanks anyway.

LOL didn't mean to ruffle any feathers. And certainly didn't meant to sound condescending (or worse, dumb) if that's how it was taken. I just didn't know how apparent the headlight leveling is while driving, that's all. I have them and I notice the side-side motion, but never the up-down motion while driving.

Do both levers affect the headlights or just one of them?

[Quicksilver]

No worries. I don't have feathers.

Here's the deal. According to the Bentley Manual

The LWR system automatically adjust the vertical positioning of the headlights
to maintain optimum headlight beam positioning for maximum driving visibility
and to prevent undue glare for oncoming motorist. The system compensates
for vehicle load angle changes such as changes in fuel load during a long journey varying cargo weight, ect


The LWR (Headlight Vertical Aim control Module)
monitors the vehicles loaded angle via two hall effect level sensors mounted to the front and rear suspension members.
When an adjustment is necessary, LWR simultaneously activates two stepper motors, one in each headlight assembly.
The stepper motors drive a threaded rod that moves the lower edge of the headlight carrier plate forward and backward.
the upper edge of the carrier plate is fixed on a pivot. The pivoting movement adjust the vertical position of the headlight beam.

The question I have is after New headlight assemblies are installed
does the LWR module require coding? Are there fuses in the control module?

Originally Posted by crystalworks

LOL didn't mean to ruffle any feathers. And certainly didn't meant to sound condescending (or worse, dumb) if that's how it was taken. I just didn't know how apparent the headlight leveling is while driving, that's all. I have them and I notice the side-side motion, but never the up-down motion while driving.

Do both levers affect the headlights or just one of them?

[crystalworks]

Good deal. I'm still relatively new to the e53 chassis having only had one for about a year and a half now in one form or another. Still learning. Unfortunately, I don't know answer to the two specific questions you have... so I am just trying to think of a way of testing that the system is functional.

By the description above it sounds like you could manipulate the rear level sensor to engage the headlight LWR. This would simulate very quickly going from an unweighted rear hatch/low fuel level condition to a heavily loaded/full tank condition to trigger the leveling. No?

[Quicksilver]

Update -The LWR (Headlight Vertical Aim control Module) can be accessed adjusted
with the shop computer. The adaptive headlight operation was checked and reinitialized.
Steper motor operation and sensors both front and back were operational and moving the
headlights up and down. Now the Headlights need to be machine adjusted (Not with eyeballs)
But with an optical beam setter. https://www.google.com/search?q=BMW+...ght+adjustment

[crystalworks]

^Good deal. So everything was mechanically/electrically sound.

Sounds like the moral of the story is when you install new headlights you need to "calibrate" the system by properly aiming/adjusting with the machine described above. Correct? The shop going to take care of that for you?

[Quicksilver]

Most of it has been taken care of. Now the Headlights need to be machine adjusted (Not with eyeballs)
But with an optical beam setter. https://www.google.com/search?q=BMW+...ght+adjustment