Question about 1996 BMW 318

3 Answers

Faulty Heater Fan

The blower fan in the car for the heater only works on the highest setting of 4.

Thanks for any assistance

Posted by on

  • 3 more comments 
  • plek4 Jul 28, 2008

    To cruiser d & capsman, Thanks for your advice I shall check out your suggestions


  • ahmedsami Aug 03, 2008

    i have a 318i e46 bmw, the fan a/c or the heater is too noisy, can't be controled even at the lower speed,what can i do?

  • Anonymous Sep 15, 2008

    Fan blower only works on the highest setting of 4

  • studioexpres Dec 07, 2008


  • donnag65 Feb 08, 2009

    I have a Vauxhall Zafira 02 reg. My heater is now only working on the highest setting. Is it easy to fix? and approximate value?



3 Answers

  • Level 1:

    An expert who has achieved level 1.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers

I would check the blower motor resistor. The resistor slows the current going to the blower motor to make the fan run slower for the first three speeds.The high speed runs of full battery voltage.I hope this helps.

Posted on Jul 28, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I experienced same problem with my bmw 318 1992 model with m40 engine. i just repaired the motor resistor and now its working well. if you have other concerned on how did i repaired it pls email to me at

Posted on Aug 25, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 111 Answers

I should guess that four position switch is bad, provided it is a simple resistance type of selection. But the number four suggests it may be a binary sort of thing, 00, 01, 10, 11: off, low, med, high. If that is the case there may be more going on. But either way, you have to open up the instrument panel and see what can be done from there. In either case the switch is the first thing to look at.

Posted on Jul 28, 2008

1 Suggested Answer

  • 2 Answers

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

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

My climate fan only works on highest setting "4" what do I need to fix so it works on the lower settings as well?

Most common repair is replacing the heater motor blower resistor located near the heater motor

Jul 17, 2015 | Cars & Trucks

1 Answer

Where is the high speed fan relay on a 95 lumina apv?

The photo I have shows the high speed relay on the firewall or on the heater box in the engine compartment. It should be near the blower motor.

Jul 10, 2013 | Cars & Trucks

1 Answer

The heater fan on my 1993 f-350 has become really loud. I only have hi speed which I understand may be a resistor issue but how do I remove the fan and motor assembly to inspect it?

A heater blower motor resistor is an electronic device with three or more progressive resistors that allow the heater blower motor to operate at slower speeds. The highest speed of the heater blower motor is not controlled by the resistor, so when the resistor fails, the fan will often work on the highest speed setting, but not the lower speeds.
To resistor is generally located under the dashboard and under the hood, near the blower motor . The resistor's electrical connector is disconnected, the resistor is removed and the new resistor is installed. On some vehicles it may be easily accessible, and on others it may take partial dashboard removal to replace the resistor.
Look under the hood, generally the wiring for the Blower resistor is attached to the wiring to the blower motor itself
It's inboard & below the motor, near the accumulator. You can see it standing beside the passenger fender. it's the off-white connector behind the L heater hose above the vacuum reservoir & the white WARNING sticker

Feb 12, 2011 | 1993 Ford F350

2 Answers

The fan for the heater/AC only works on the highest setting (4). Could this be a fuse?

no the blower switch on the dash board is at fault the high blower speed works off the relay only which is ok

Feb 20, 2010 | 2006 Jeep Liberty

1 Answer

My fan heater only works on the highest setting 6

Hi. This will be the result of a failed resistor switch. the switch controls the current level sent to the blower motor. Once replaced, the motor will operate at your desired rate. This switch is an integrated part of the AC/Heater control cluster, that is mounted in your dash. You will need to remove the trim, and cluster assembly to expose the damaged switch.

Dec 04, 2009 | 2002 Jaguar X-Type

1 Answer

Heater fan will only work on the highest setting ,no.4?

This sounds like the blower resistor has gone out. This is the component that allows the proper voltage to the fan to change the speed. Have it checked and replaced. That should get you back in business. Hope this helps. Good luck.

Dec 02, 2009 | 2000 Ford Focus

3 Answers

Subject: 2004 isuzu ac/heater blower is not working

The resistors are in circuit only on the lower fan speed settings.
On the highest speed setting, power is switched directly to the fan motor.
Check fan power supply fuses,
Check power is available to the fan when high speed selected.
If all above OK, apply power directly to the motor to verify fan motor runs- if it doesn't the motor may need replacement/repair.

Jul 29, 2009 | 2004 Isuzu Rodeo

2 Answers

99 Nissan Altima blower fan works only on highest setting (#4)

Resistor switch. The rotary switch on the dash is very, very uncommon. It is also not the blower, because it works.

Mar 09, 2009 | 1999 Nissan Altima

3 Answers

Faulty Heater Fan

you need to get a new heater switch. the other settings are worn out

Dec 06, 2008 | 2002 Dodge Durango

Not finding what you are looking for?
1996 BMW 318 Logo

287 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Anthony Jones
Anthony Jones

Level 2 Expert

128 Answers


Level 2 Expert

281 Answers

Chris Bowser

Level 1 Expert

18 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides