My new GT has HID's. They're nice: they give off a lot of light.
I have been wondering how the self leveling works - not at a very detailed level, and not because I have problems but purely out of curiosity. When I switch them on, they sort of dip down, up and come to rest somewhere appropriate. Regardless of whether the car is on a slope or on a flat surface. How do they manage this?
There are movement sensors on the front & rear suspension.
An ECU uses inputs from those to decide the correct level but they always start at the lowest level and then come up to the level calculated by the ECU.
But it does not explain what it does when you turn on the light at a standstill, on a hill: no movement to be sensored, not on a level surface, but still the lights dip ad go up to a certain level (is that preset? And if so, how does it null itself?)
i dont know the system or have never had it in fact this thread is the first i have heard about suspension sensors but i presume that it it taking the place of the manual adjuster in non HID equipped cars, and wouls also presume that:
the sensors aren't looking for hills or the ground, but for compression within the suspension and will level the light in respect to the car. So therefore if they detect that the car is level it will put the lights in the normal position. but if the sensors sense more compression in the rear suspension (ie a heavy boot load) the nose of the car will be pointing upwards which means the lights will have to be leveled lower down so the correct distance is light up and other drivers not dazzeled.
Here is the pic of the adjuster system. The small thing that looks like ARB droplink. I don't have a complete picture but it is connected with a box on the sub frame giving suspension compression reading.
Does anybody knows how to set that adjuster (small thing that looks like ARB droplink) after change ? I mean does the angle of couple degree do diference how i screw it ?, or should i reset selfleveling system somehow atfer ? Maybe fiatEcuScan ?
Just boght the car...
OEM codes doesn't help, for me and our dealer prices are stupid.
Does any body know bosh numbers for level sensor ?
Already found that mazda 6 use same level sensor, atleast front one
Bosch code for xenon level frint sensor 0 307 865 007
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Alfa Romeo Forum
7.1M posts
216.7K members
Since 2001
The friendly Alfa Romeo Club - If you are looking to buy or you are already an Alfa Romeo owner, join alfaowner.com today to get the most from your ownership