Quote:
Originally Posted by rantarM3
I tried as best I could without a second person and did not hear anything. When I get a chance, I'll try with someone going through the EDC stages and my listening under the hood. I looked at some pictures of the components and there may not actually be a motor that changes the modes but it is hard to tell from what I found (see: http://billswebspace.com/M3HRSpringInstallation).
On a side note, have you tried disconnecting the battery for say 30 minutes or so, and then reconnecting? If it is a software error I'd guess that letting all the control units fully power down and reboot might correct the issue. No? |
You can forget about trying to hear a click. Today i found the following tech note below that describes the EDC system in the E60, and it is a continuous adjustment, there are no discrete settings that you could hear switching. The EDC-K module drives all 4 solenoids in each shock with a variable DC current limited to 2 amps. It adjusts those currents continuously based on :
- road conditions
- selected edc mode
- DSC data
- 3 horizontal acceleration sensors, vertical acceleration sensors
- software maps
- "wear characteristics of each shock" (see last page)
- ...
“running time memory” in the EDC control unit must be reset if a shock is replaced."
"Current control of the solenoids stops below three mph" so we cannot test the current in the solenoids with the car parked.
%$#! adaptive software is probably used in programming EDC. I hate anything adaptive in a car's drivetrain.
I did not have that tech note information when i went to the dealer. He entirely reprogrammed my EDC-K module with the exception that he did not erase the time memory.
The dealer warned me that if we erase the time memory in the edc the tool would not return the setting to factory but to values based on the shocks running time. I am not sure what he was afraid of.
My car still feels permanently somewhere in between sport and normal. Not quite as stiff as how i remember sport when it worked but definitively not comfort.
then there is the servo steering mode showing no difference either. The servo uses an Electro Hydraulic concerter which is a solenoid that moves the valve in either position. For the shocks it is not an external part it is built inside the shocks.
My dealer only looked at the issue from an electronics point of view, found nothing, reprogrammed all but DSC. They did not bother to even look at possible leaks from shocks. That and erasing the EDC memory is what they have not tried.
http://thebimmerpub.com/pdf/2012/10oct/Earth-Shocks.pdf