Level Sensor

Anyone know what this sensor is responsible for? It is located on the rear suspension. Also would it have to be coded if it needed to be replaced?

THE TECH wrote

Anyone know what this sensor is responsible for? It is located on the rear suspension. Also would it have to be coded if it needed to be replaced?

Headlight aiming sensor and I doubt it would need to be coded (it's not a control module). A simply plug and play should be all you need. How did you break it?

Bubbles wrote

Headlight aiming sensor and I doubt it would need to be coded.

Yeah I just found some info on it, thanks. Wondering if there's anything else that it does or is it solely for the headlights?

the parts catalog calls it "Headlight vertical aim control sensor", so I'd think that's what they are used for. Also if they are used for any type of dynamic control, BMW would have placed one at each wheel, instead of one per axle.

Richard@M-World wrote

the parts catalog calls it "Headlight vertical aim control sensor", so I'd think that's what they are used for. Also if they are used for any type of dynamic control, BMW would have placed one at each wheel, instead of one per axle.

Thank you. RealOEM only lists it as a level sensor.

Can you guys elaborate a little more as of the location of that sensor, I just did a spring install and my headlights are now between high beams and low beams. If you guys have a photo of it as of where it sits, it would be great.

E30_80Y wrote

Can you guys elaborate a little more as of the location of that sensor, I just did a spring install and my headlights are now between high beams and low beams. If you guys have a photo of it as of where it sits, it would be great.

The armature attaches to the lower control arm on the driver's side front. Take off your front driver's side wheel, and peek beyond the caliper, and it's there.

It is very easy to break that arm when doing spring/damper/coilover installs, if you forget to undo that 8mm nut. So, if you did the install yourself, and don't know where that sensor is, it's possible you damaged it.

If you want to re-aim your headlights, there is a large white plastic philips screw on the back of each headlight unit.

larryn wrote

The armature attaches to the lower control arm on the driver's side front. Take off your front driver's side wheel, and peek beyond the caliper, and it's there.

It is very easy to break that arm when doing spring/damper/coilover installs, if you forget to undo that 8mm nut. So, if you did the install yourself, and don't know where that sensor is, it's possible you damaged it.

If you want to re-aim your headlights, there is a large white plastic philips screw on the back of each headlight unit.

So the sensor is in the front or the back?

Everything you need to know is in this thread:

http://www.m3post.com/forums/showthread.php?t=389548

JAJ wrote

Everything you need to know is in this thread:

http://www.m3post.com/forums/showthread.php?t=389548

Good stuff, appreciate the help!

Hey, sorry to bring this up from the dead, but im trying to find the part number for #4 in the front drivers side suspension. I broke this arm by stripping the bolt that goes into the control arm.

Does anyone know how i can find the part number? Can't seem to find it on getbmwparts.com.

vincE92M3 wrote

Hey, sorry to bring this up from the dead, but im trying to find the part number for #4 in the front drivers side suspension. I broke this arm by stripping the bolt that goes into the control arm.

Does anyone know how i can find the part number? Can't seem to find it on getbmwparts.com.

37142283867 on realoem.com

Thanks! I ended up finding it and ordering from tischer this AM!

Hi can this sensor cause the dipped beam to move drastically whilst driving? When I’m driving above 60 mph my dipped beam moves up and down alot could this sensor be the issue?