Blower Final Stage Fan Resistor May Fail on BMW 330i

Submitted by Vehicle Owner · May 29, 2025

Published by RepairPal

Problem overview

The blower final stage fan resistor is known to fail. Symptoms are the heater fan speed varies regardless of the setting, the fan will not turn off when the car is switched off, or the fan will not switch on at all.

36 people reported this problem

13 comments

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BMW 330i vehicles with this problem

4 model years affected

Average mileage: 124,538 miles

(38,000 - 210,000)

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Blower Final Stage Fan Resistor May Fail on BMW 330i

Problem overview

BMW 330i vehicles with this problem

Need a diagnosis? Trust our BMW experts.

Search for another problem

Ask our experts about your BMW.

Need a diagnosis? Trust our BMW experts.

Blower Final Stage Fan Resistor May Fail on BMW 330i

Problem overview

BMW 330i vehicles with this problem

Repairs related to this problem

Blower Motor Resistor Replacement

Need a diagnosis? Trust our BMW experts.

Search for another problem

Ask our experts about your BMW.

Need a diagnosis? Trust our BMW experts.