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Old 12-01-2011, 03:04 PM
HPIA4v2 HPIA4v2 is offline
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Location: washington
Join Date: Mar 2006
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Mein Auto: E60, E71, E92
Originally Posted by LRMcNeil View Post
Had a road trip today - new discoveries! The dynamic drive/malfunction lights are not affected at all by cycling the DSC, as suggested. They remain sporadic for in town short trips, but are absolutely absent on a sustained road trip.
Makes me visualize a marginally effective 'pump', if there is one separate from the power steering pump. Thoughts? I grant I do not know the mechanics of the DTC / DSC system, but it appears to me that hiway speeds generate sufficient fluid pressure to make the systems work, but short trips do not. The light clears consistently with only 3 or 4 miles at speed.
Which warning are you getting?
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