# Mercedes C230 Intermittent A/C fan problem

**URL:** <https://community.cartalk.com/t/mercedes-c230-intermittent-a-c-fan-problem/74380>\
**Category:** Maintenance/Repairs\
**Tags:** c-class, mercedes-benz\
**Created:** [August 30, 2012, 10:54pm UTC](https://community.cartalk.com/t/mercedes-c230-intermittent-a-c-fan-problem/74380 "2012-08-30T22:54:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fidson](https://avatars.discourse-cdn.com/v4/letter/f/e8c25b/32.png) [@Fidson](https://community.cartalk.com/u/Fidson)\
**Post date:** [August 30, 2012, 10:54pm UTC](https://community.cartalk.com/t/mercedes-c230-intermittent-a-c-fan-problem/74380/1 "2012-08-30T22:54:13Z")

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I have a Mercedes C230 2007 Air conditioner problem. When I start the car and turn on the A/C and the fan, it works for about 2 - 5 minutes then the fan stops (the AC light still shows the AC is on). If I turn the fan off and wait about 3 - 5 minutes, then turn back on the fan, it will work again, and for the rest of the trip, the AC and fan works fine. But if I turn off the car when I stop at a store for instance, then start the car again, the AC initially works then the fan turns off again after 2 - 5 minutes. I always have to wait the 3 - 5 minutes to turn back on the fan otherwise the fan won’t turn on.

I have tried numerous variations of turning on/off recirc, fan on higher or lower speed, and different AC temp settings. None of these make any difference. I have also tried just turning on the “Auto” AC setting, but the same problems exists. This problem happens now every time I drive the car, whereas initially it only happened a few times a week.

Any ideas what this problem is? Possible cost for fixing this?

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**Author:** ![joeyb](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@joeyb](https://community.cartalk.com/u/joeyb)\
**Post date:** [January 8, 2013, 8:45pm UTC](https://community.cartalk.com/t/mercedes-c230-intermittent-a-c-fan-problem/74380/2 "2013-01-08T20:45:28Z")

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Hi Fidson did you ever resolve this? It’s be great to know what happened if you did.

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [January 9, 2013, 5:35am UTC](https://community.cartalk.com/t/mercedes-c230-intermittent-a-c-fan-problem/74380/3 "2013-01-09T05:35:13Z")

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@joeyb this thread is very old

I suspect a blower regulator  
I worked at a Benz dealer for many years, and this was a fairly common problem.