Quote:
Originally Posted by Tommysalami
You may want to consider resetting the EDC. In a scan tool under service/chassis/electronic damping control K, or in ISTA, select "Adjustment, shock absorber" and run it for both axles. The EDC system tracks the car's mileage and make the shocks stiffer over time to compensate for wear, making new shocks feel harsh after replacement. I installed the same B6 damptronics after 70k miles on the chassis and they were skipping and losing traction over small bumps. It was noticeably better after resetting.
From some technical documents on the E65 where I guess this system was introduced:
https://www.meeknet.co.uk/E64/09_E65...20Dynamics.pdf
From Page 20
Tolerance Adaptation
The damper force is diminished as part of the operating time function. Diminishing damper forces are compensated by current (amperage) reductions which are calculated by the tolerance control. This also individually compensates for mechanical damper wear on each axle.
And from page 23
Mechanical wear causes the dampers to weaken over the service life, therefore a running time memory adapts the damper curves towards a harder setting (over time). Faulty dampers must be replaced together (in pairs) on a single axle. After a replacement, the running time memory for the front or rear axle must be reset with the DISplus.
May also apply to your Alpina? |
It shouldn't, the B7 doesn't have EDC. Alpina used Eibach lowering springs and the same Sachs dampers that BMW put on the E65/E66 sport models. There's only one damper option for the B7 unless you want to go with coilovers (blasphemy).