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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > Suspension | Chassis | Brakes > Lowered my car, had to adjust headlights?
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      03-27-2019, 08:15 AM   #23
kern417
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Quote:
Originally Posted by bimmer456 View Post
Not sure why you can't raise and lower headlights in iDrive, since they are auto leveling.
You have a range of adjustment with the auto leveling. All you'd do is eat into that range if that's how it was done. The range of adjustment with the screw is more than what the light does automatically.

Quote:
Originally Posted by Tchao View Post
Why not just adjust the headlight using the aiming/focus screw up front?

The ride height sensor also does other things besides aiming headlights like DSC and traction control, and maybe even dabbles with DHP system. May not be wise to play with that...
If anything he would have corrected all of those things by reinstalling it in the correct orientation.
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      03-28-2019, 10:38 PM   #24
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Quote:
Originally Posted by kern417 View Post
If anything he would have corrected all of those things by reinstalling it in the correct orientation.
Ahh I mis-read the post. It was installed wrong when dropping the control arms down. Got it.
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      07-16-2019, 06:26 PM   #25
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Quote:
Originally Posted by HenryX View Post
If you guys have
-Adaptive headlights
-Lowered the car and the headlights now aim super high.

It's likely to be your rear headlight level sensor located in the rear driver side. Refer to part 2, 6, and 7 from the diagram below.



The sensor attaches to the lower camber arm, which is also where the spring sits on. This sensor can be seated wrong during reinstallation which causes the car to think the rear is sitting very high compared to the front, therefore aims the headlight up like crazy.

The follow images are based off the E90 M3 but it is identical to our F30.

The Wrong Way


The Right Way


The Fix:
- Jack up the driver rear side
- Undo the bolt that holds the rear sensor to the lower camber arm.
- Reseat the leveling rod to the correct orientation
- Redo the bolt.
- Put your car back down and try the headlights now.
- If it doesn't work, your rear sensor is probably broken.

Hope this helps guys! Good luck!

Couldn't find the rear leveler for the longest time, but it's there! Just found it today. It's mounted forward of the left-rear (driver's side) camber arm, right behind the drive shaft. Getting it back into the right position required loosening the mount to the camber arm using a single 10mm. The post that helped me eventually locate it was this one:

https://f30.bimmerpost.com/forums/sh....php?t=1083978

Whew! Thanks all for the info.

Last edited by ali820; 07-21-2019 at 07:42 PM..
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      07-19-2019, 01:13 PM   #26
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Just as HenryX said. Very common for a sensor arm to get reinstalled in the wrong direction.

I checked my car on Hella Light align machine after installing the B8's and Eibachs and the beam was 100%..

These lights are self leveling and do not require an adjustment.

What If you had 5 heavy people onboard and their luggage, where the car will naturally compress and sit lower, you wouldn’t adjust the lights or would you ..
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      08-12-2019, 08:47 AM   #27
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Thanks for this. Had this issue after installing my Dinan springs.
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      09-10-2020, 11:49 PM   #28
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Quote:
Originally Posted by HenryX View Post
If you guys have
-Adaptive headlights
-Lowered the car and the headlights now aim super high.

It's likely to be your rear headlight level sensor located in the rear driver side. Refer to part 2, 6, and 7 from the diagram below.



The sensor attaches to the lower camber arm, which is also where the spring sits on. This sensor can be seated wrong during reinstallation which causes the car to think the rear is sitting very high compared to the front, therefore aims the headlight up like crazy.

The follow images are based off the E90 M3 but it is identical to our F30.

The Wrong Way


The Right Way


The Fix:
- Jack up the driver rear side
- Undo the bolt that holds the rear sensor to the lower camber arm.
- Reseat the leveling rod to the correct orientation
- Redo the bolt.
- Put your car back down and try the headlights now.
- If it doesn't work, your rear sensor is probably broken.

Hope this helps guys! Good luck!
Do you still have the photos for this? I'm having this same issue but photos seem to be not available anymore.
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      09-18-2020, 07:49 AM   #29
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headlights adjustement is a crucial thing in the road safety. Read the guides or leave it to professionals. But in any case I would not recomment ignoring headlights adjustement.
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