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2002 bmw has no heat def,or heater .start up error -40deg dash

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The ambient temp sensor is out of range maybe came unplugged or is faulty or the computer that reads the sensor is faulty or has a bad connection most ambient sensors are located behind the front grill and are pretty easy to get to enclosed is a typical bmw ambient sensor you didnt say your model so this is just a general idea 2002 bmw  has no heat def,or heater .start up erro - 1_4_2013_5_06_15_am.jpg

Posted on Jan 04, 2013

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

emissionwiz
  • 75005 Answers

SOURCE: heating...burrrrrrrrr

The clicking is the air temperature blend door motor, most likely the motor will have to be replaced the blend door checked to make sure it moves freely, this repair requires the removal of the dash assembly.

Posted on Dec 10, 2008

wireguy212
  • 1627 Answers

SOURCE: I get air flow through both heater and def vents

There is a stepper motor in behind the dash that controls where the air is distributed to.They are hard to get to,expensive to replace and almost impossible to repair so you might want to just live with it.

Posted on Nov 17, 2009

Testimonial: "That sucks."

  • 72 Answers

SOURCE: 2002 bmw x5 heater blower not working

It could be the final fan reistor they all give trouble in this model.

Posted on Aug 02, 2010

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