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The fourth generation Volkswagen Jetta, also called the MK4 or the Bora, is Volkswagen's family sedan.

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A/C - heater fan not working

Everything was working fine. Shut the car off and came back the next morning and fan speeds 1 thru 3 wouldn’t work for the a/c. Speed 4 would. Is it the switch? A relay or a fuse somewhere? 2003 MK4 Jetta ALH


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Check if the blower motor resistor is OK.

Here’s a video that may be of some help.

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