2003 Mercedes Benz C230

Engine Cooling problem
2003 Mercedes Benz C230 6 cyl Front Wheel Drive Automatic 53000 miles

Could a tune up have created a problem with my auxiliary fan module going out?
I had a tune up done and upon pick up the check engine light and engine fan were on.
The next day when I started the car the engine fan started right up with it.
Not hot, no ac running, etc.
Mercedes said that my auxiliary fan module is out.
Could this have been caused by mistake made by previous mechanic?
October 29, 2008.

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