Mercedes-Benz Forum - View Single Post - 05 C230 P0694 and fan missing controller?
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post #1 of Old 08-29-2019, 02:24 PM Thread Starter
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Vehicle: 06 C230
Location: California
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05 C230 P0694 and fan missing controller?

My daughter's car got hot yesterday and gave a dash warning which she wasn't able to quote to me. She let it cool down and drove home with no further trouble. I started it up yesterday and pulled P0694 from the computer (thankfully no other codes) and observed that the fan wasn't coming on. After looking around online it seemed likely that the fan controller was faulty and there are half a dozen of these at the local pick-n-pull so I went and got one.

Here's the really puzzling bit: I removed the fan and there's no controller. If you look at the photo below, the fan I removed from the car is on top and the junkyard fan is on the bottom. The connector is the same and they both have four wires, but I'm unsure as to the consequences of plugging this controller in and also I don't think the cable will reach all the way up to the different fan model.

What gives here? Where else should I be looking for the fault?

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