Why does the radiator fan run even when the cars not started

Asked by Jun 09, 2012 at 08:48 PM about the 2002 BMW 3 Series 325i

Question type: Maintenance & Repair

Air doesn't blow cool, radiator fan comes on when the cars not running.

3 Answers

12,325

If it's coming on even when the engine is cool you most likely have a relay issue to the fan or a control issue to the relay.

3 out of 3 people think this is helpful.
2,755

Check your temp sensor to see if it's working correctly

2 out of 2 people think this is helpful.

The fan on that vehicle is digitaly controlled by the vehicles DME if the fan is running all the time even with the vehicle off then te fan module (fan assembly itself) is faulty

3 out of 3 people think this is helpful.

Your Answer

Add photo

Related Questions

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 38,440 nationwide 3 Series listings starting at $1,890.

ZIP:

Search BMW 3 Series Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,160
#2 Robert Charlson
Robert Charlson
Reputation 1,420
#3 Matt Mankinen
Matt Mankinen
Reputation 1,130
View All

Related Models For Sale

Used BMW 5 Series
607 Great Deals out of 15,216 listings starting at $2,495
Used BMW M3
68 Great Deals out of 2,045 listings starting at $2,650
Used Mercedes-Benz C-Class
618 Great Deals out of 32,115 listings starting at $2,500
Used Audi A4
311 Great Deals out of 11,992 listings starting at $800
Used Ford Mustang
537 Great Deals out of 42,625 listings starting at $1,699
Used Mercedes-Benz E-Class
363 Great Deals out of 22,564 listings starting at $1,450
Used BMW X5
484 Great Deals out of 15,236 listings starting at $2,500
Used BMW 7 Series
178 Great Deals out of 5,696 listings starting at $3,299
Used Honda Accord
1,003 Great Deals out of 74,760 listings starting at $899
Used Chevrolet Camaro
378 Great Deals out of 40,505 listings starting at $3,500
Used BMW 6 Series
111 Great Deals out of 3,243 listings starting at $7,995

Used Cars For Sale

2017 BMW 3 Series For Sale
9 Great Deals out of 7,734 listings starting at $29,995
2016 BMW 3 Series For Sale
175 Great Deals out of 5,384 listings starting at $22,175
2015 BMW 3 Series For Sale
28 Great Deals out of 901 listings starting at $17,371
2014 BMW 3 Series For Sale
173 Great Deals out of 3,302 listings starting at $13,799
2013 BMW 3 Series For Sale
319 Great Deals out of 5,173 listings starting at $11,950