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Old 12-06-2012, 11:28 AM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 25,236
Mein Auto: 02 BMW 525i M54 auto 130K
How does the BMW E39 adapt to high altitudes when you go from sea level to 6000 feet?

This thread today, where a user went from a low altitude warm area to a high altitude cold area, got me wondering how the E39 adapts to altitude when it comes to engine control adjustments:
Quote:
Originally Posted by kross1300 View Post
I recently moved from San Diego to Breckenridge, CO and I have been having some trouble with how my car runs!
I've noticed in the past when I drove from San Jose (about 100' ASL) to Tahoe (around 6,000' ASL), my car used to stumble more so than I thought it should (but I've since replaced all the hoses due to a vacuum leak in the throttle boot and CCV lower vent hose and air pump vent hose).

To better understand how the bimmer adapts to altitude, I ask the general question:
Q: What does our E39 do differently at altitude than at sea level?
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