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Old 06-07-2009, 11:01 PM
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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
Looking at the front brke pressure sensor at the rear of the hydro unit, I see the brake pressure sensor harness has three wires that we can tap into to test live voltage.

I did notice some "stuff" on the edge of the clip, so I cleaned that off and reconnected the clip.

I don't know if it's related but the problem still shows up as three lights lit on the instrument cluster ... but now ... it seems, the problem has "moved from:
81 Einlassventil : vorne links

Which, in English, appears to indicate:
81 Inlet valve front left

But, Error 81 in the posted Bosch 5.7 codes appears to be:
81 Pressure Sensor

Are these the same thing? Or different?
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