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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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BMW E46: cleaning out the internal cabin air temperature sensor

Posted by jpluimers on 2019/09/06

When the internal air temperature sensor becomes dirty over time, heating/airconditioning either thinks it is too warm or too cold inside then over-cools or over-heats.

Cleaning the internal air temperature sensor is simple:

It is behind the little slots on the front of the HVAC control, which has a fan that draws air across the sensor. It can clog up with dirt and need to be cleaned with some compressed air.

If more fails, you can replace it with a more modern unit, see the pictures below that are from [WayBack] Guide To Your BMW E46 HVAC Automatic Climate Control Upgrade by delmarco | DIY

Guide To Your BMW E46 HVAC Automatic Climate Control Upgrade Compliments of delmarco @   http://www.bimmerfest.com Starting during the production month/year of 03/2003 BMW Redesigned the Automatic HVAC Climate Control in the E46 cabin.

Via:

–jeroen

 

 

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