Noisy Fan problem - BMW 320i ES (170 bhp) automatic ..2007 (57) model

Asked by Jul 31, 2012 at 06:15 AM about the 2007 BMW 3 Series 328i

Question type: Maintenance & Repair

Auxiliary pusher fan comes on after driving 5 miles and its very noisy. I can feel vibration on steering wheel also. I am not sure why that switches on so quickly while its a very normal driving on empty road with 40-50 mph speed, so dont think engine is excessive hot. And the noise is very loud look like a vacuum cleaner noise.

2 Answers

3,300

The electric fan should be loud enough to hear, but no annoyingly loud. Maybe the motor is going bad. As far as why it turns on so quickly, it could be a faulty reading from your ECT (engine coolant temperture) sensor, or your thermostat isnt opening up fast enough or all the way so the fan is compensating to keep temps in line.

1 out of 1 people think this is helpful.
35

sugest you try a new thermostat. its a easy do it yourself jjob. also check your sensors?

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,460
#2 Robert Charlson
Robert Charlson
Reputation 1,510
#3 Matt Mankinen
Matt Mankinen
Reputation 1,160
View All

Related Models For Sale

Used BMW 5 Series
491 Great Deals out of 14,472 listings starting at $1,375
Used BMW M3
59 Great Deals out of 1,885 listings starting at $6,999
Used Mercedes-Benz C-Class
541 Great Deals out of 30,472 listings starting at $1,500
Used Audi A4
199 Great Deals out of 10,876 listings starting at $1,333
Used Ford Mustang
320 Great Deals out of 45,522 listings starting at $2,000
Used Honda Accord
703 Great Deals out of 81,926 listings starting at $500
Used BMW X5
395 Great Deals out of 15,720 listings starting at $1,300
Used Mercedes-Benz E-Class
409 Great Deals out of 22,485 listings starting at $1,999
Used BMW 6 Series
81 Great Deals out of 3,297 listings starting at $4,500
Used BMW 7 Series
177 Great Deals out of 6,138 listings starting at $3,500
Used BMW 1 Series
66 Great Deals out of 1,408 listings starting at $6,499
Used Lexus IS 250
208 Great Deals out of 5,276 listings starting at $5,499
Used Dodge Charger
246 Great Deals out of 27,238 listings starting at $1,997

Used Cars For Sale

2016 BMW 3 Series 328i For Sale
7 listings starting at $42,055