Question about BMW 318

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My BMW 318i the air con fan dont start up at times then when it wants it starts up, I suspect the fan motor brushes are worn , I need to know how to open up to get access to the fan to check it out, or are these fans fitted with brushless motors ?.

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BMW fan motors have brushes. If yours is wiring occasionally, check wiring from switch to fan - check relay in fuse box.

Posted on Mar 16, 2011

Testimonial: "I actually need to get a workshop guide as to strip out the dash and check the problem I dont have credit card to pay for it will, make a plan."

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    Mical Caterina Mar 16, 2011

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My BMW 318 air con fanbelt has broken is this an urgent problem or can I take time in replacing it.


Are you sure that the belt only turns the AC compressor? Be sure that it's not also connected to the fan and the power steering pump. If it's only turning the air conditioning compressor then you can live with it for as long as you can live without air conditioning.

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I have a bmw e46 318i se when i start the car the fan comes on straight away weather its cold or hot, i run it up and it doesnt over heat and drives perfect, BUT THERE IS NO HOT AIR COMING OUT THE BLOWERS,...


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Fan stopped working. Could it be the relay. If


I remember those winters living North of you in MB.-50 some days...Winterpeg...
I will ask my tech about the relay but I would suspect the blower motor brushes. Check your power on several speed settings. My Camry had a resistor set up on the fan housing where one speed stopped working one one speed. Upon dismantling under dash I discovered one of several resistors on the fan housing was shot which caused that speed setting alone to fail. I couldn't buy it separately at the time so I found one in a wrecker. If all speeds are dead check your fuse and suspect worn brushes on the motor.
If you can bump the housing and hear the fan start and stop that's another indication that its likely brushes.If your bearing is worn and you can hear the fan start and stop and wobble when you hit a bump, again a symptom of motor problem versus switch or relay. Not sure if you can buy brushes only, but if you are really handy you can sometimes rebuild the blower if the brushes are failed. Given your prolonged used in winter your blower likely has more wear than one in a more moderate climate so I would look there first, under dash, knee level near the glove box.Post back and I'll talk with my tech today.

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1 Answer

BMW 318i 1999 model, air con not working


hi

I had this problem before. There could be several reason.

1-Your air conditionner filter could be soo old and dirty, that you don"t get that good air condition.

2-Your air cond compressor could be giving low pression and so, no cool air.

3- You could be having a leak somewhere and so you're loosing gaz after it's filled.

4- Check also the fuse box. Seee if the AC fuse is not burnt.

thanx and don't hesitate to come back to me



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1998 Honda Accord interior ventilation fan has stopped working.


they are right the air conditioner has nothing to do with the fan running .. your air conditioner is operated by a pressure switch .when it gets low on freon it will not come on, which saves your compressor. your fan only blows the cold air the air conditioner puts in to the coils located inside your dash. which the blower then blows the air into the car.. now you are on the right track look some more you will find the round motor under that dash near the glove box and its held in there with usually 4 small bolts. and removal is easy if you can locate it.. one wire and 4 small bolts and out it comes .. you should be able to get one at a local parts store ..

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Bmw 318i air con switch


the light should be on when air con is working. only works when the blower is on ,ie heater blower switch on=air con light lit up = aircon working.

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