The climate control fan on the 99 doesn't increase speed normally with the rising engine temp - from time to time. It starts blowing when the engine reaches operating temp, or whenever it wants to. So when it's calling for heat, the fan speed indicator on the display will start filling in normally as the fan increases in speed -- even though the fan isn't on. I can feel warm air coming from the vents, but that's just air drifting in over the heater core.

Sometimes it operates normally, right from the start - no problem.

My guess is that there is a temp sensor somewhere that's gone wonky.

Any thoughts?

__________________
DS
2010 CL550 - Heaven help me but it's beautiful
87 300D a labor of love
11 GLK 350 So far, so good
08 E350 4matic, Love it.
99 E320 too rusted, sold
87 260E Donated to Newgate School
www.Newgateschool.org - check it out.
12 Ford Escape, sold, forgotten
87 300D, sold, what a mistake
06 Passat 2.0T, PITA, sold

Las Vegas NV