Pulsating heater/ac cabin fan

Asked by NWI325i Jan 24, 2010 at 03:03 PM about the 2002 BMW 3 Series 325i Sedan RWD

Question type: Maintenance & Repair

The cabin heater/ac fan on my 2002 325i pulsates, especially when cold.  Seems to go away after the car warms up.  I've heard of this problem but didn't pay much attention to what the fix was seeing that I didn't have the problem at the time....now I do, too.  Any idea on how what's the problem and how to fix?   Thanks.

1 Answer
3,335

bmwmastertech4hire answered 13 years ago

final stage resistor.its very common.under the dash in the middle and can be accessed on the passenger side.need to pull one of the stepper motos out of the way then its 3 t-20 torx screws.disconnect it pull out the screws then reconnect it and pry the plastic flap holding it in place and pull it out from the harness or connector.prob shouldnt be saying to pull from the harness but that connector and haness is strong as hell.

Mark helpful

Your Answer:

Related Questions

  • Pulsating heater/ac cabin fan 1 Answer

    The cabin heater/ac fan on my 2002 325i pulsates, especially when cold. Seems to go away after the car warms up. I've heard of this problem but didn't pay much attention to what the fix was seeing t...

    2002 BMW 3 Series 325i Sedan RWD

    -

    Maintenance & Repair

  • BMW 2000 323i heater ac fan 5 Answers

    Help anyone...my heater, ac, fan will not blow air. I have a bmw 2000 323i wagon. Fuses look good..what else can I check?

    2000 BMW 3 Series 323iT Wagon RWD

    -

    Maintenance & Repair

  • My heater/air conditioner fan is noisy 2 Answers

    My heater/air conditioner fan works great on 1 & 2, but any higher setting gets progressively noisier (and doesn't generate any additional air flow). Before I order a new fan motor, has anyone run int...

    1989 BMW 3 Series 325i Sedan RWD

    -

    Maintenance & Repair

  • 2007 bmw 328xi defroster fan heater air conditioning will not work. Is this a fuse or fan issue? 1 Answer

    the ac and fan and defroster will not turn on. The indicator lights work. The fuse box does not have the remover and spare fuses, although I am the original owner and do not recall ever using it. Co...

    2007 BMW 3 Series 328xi Sedan AWD

    -

    Maintenance & Repair

  • AC 1 Answer

    How do I turn on or off my AC

    1997 BMW 3 Series 328i Sedan RWD

    -

    Maintenance & Repair

Own this car?

Share your experience with others.

2002 BMW 3 Series

Write a car review

Review another car

Shortcuts

Search BMW 3 Series Questions

CarGurus Experts

  • #1
    Robert Charlson
    Reputation
    3,950
  • #2
    apbimmer98
    Reputation
    3,100
  • #3
    Abu Luca
    Reputation
    2,980
View All

Know more, shop wisely

Search

Related Models For Sale

Used BMW 5 Series
533 Great Deals out of 8,742 listings starting at $1,650
Used BMW M3
87 Great Deals out of 1,393 listings starting at $9,999
Used Mercedes-Benz C-Class
843 Great Deals out of 20,623 listings starting at $765
Used Lexus IS
266 Great Deals out of 4,804 listings starting at $2,500
Used Ford Mustang
976 Great Deals out of 19,547 listings starting at $2,995
Used BMW M5
23 Great Deals out of 654 listings starting at $11,900
Used Mercedes-Benz E-Class
609 Great Deals out of 10,172 listings starting at $2,200
Used BMW X5
811 Great Deals out of 14,131 listings starting at $1,500

Used Cars for Sale

2024 BMW 3 Series For Sale
78 Great Deals out of 1,447 listings starting at $27,264
2023 BMW 3 Series For Sale
43 Great Deals out of 567 listings starting at $24,887
2022 BMW 3 Series For Sale
82 Great Deals out of 882 listings starting at $19,988
2021 BMW 3 Series For Sale
158 Great Deals out of 1,639 listings starting at $18,561
2020 BMW 3 Series For Sale
41 Great Deals out of 489 listings starting at $14,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.