In addition to always blowing hot air (out all vents) but mainly defrost, I keep blowing the #7 fuse. I started unplugging what's on that circuit and today I unplugged the aux h2o pump and water valve and the fuse was un-blown longer (would blow right at start up before unplugging these). As a result, I could start A/C with PBU, fan blowing inside car, compressor ran and both aux fans run. Air out of center vents was getting cool, sides were still blowing hot. Got to the top of the driveway and everything quit (inside fan stopped blowing) and sure enough #7 was blown again (ran for maybe 2-3 minutes).

When I first pulled the plug for the aux h2o pump, it was covered in dried windshield washer fluid (obviously something had been leaking a long time). Could this have shorted the aux pump which then in turn fried my PBU?

Any insights greatly appreciated

Mark

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1987 300DT 127K
1987 300TDT 283K (Sold)
1999 528iTa 75K
1991 300D 2.5T 214K - Dead Tranny
1984 300DT 375K (Sold)