when i turn on my ac the temperature gage rises to red zone when i turn it off the tenperature gage goes back to normal. can anyone tell me what this could possibly be?

Asked by Jul 22, 2014 at 05:57 PM about the 2002 BMW 5 Series 530i

Question type: General

1 Answer

143,275

1) low coolant 2) added load of A/C compressor running 3) fan not coming on 4) thermostat in engine 5) water pump failing 6) something blocking radiator (that one's a long shot)

Your Answer

Add photo

Related Questions

Search BMW 5 Series Questions

BMW 5 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,810
#2 Michael Branan
Michael Branan
Reputation 730
#3 Robert Charlson
Robert Charlson
Reputation 670
View All

Related Models For Sale

Used BMW 3 Series
1,807 Great Deals out of 40,896 listings starting at $1,250
Used BMW 7 Series
182 Great Deals out of 5,861 listings starting at $1,600
Used Mercedes-Benz E-Class
771 Great Deals out of 22,839 listings starting at $1,600
Used BMW X5
597 Great Deals out of 16,872 listings starting at $2,788
Used BMW 6 Series
127 Great Deals out of 3,239 listings starting at $7,495
Used BMW M5
40 Great Deals out of 632 listings starting at $7,990
Used Mercedes-Benz C-Class
1,004 Great Deals out of 32,766 listings starting at $1,950
Used Audi A6
194 Great Deals out of 7,521 listings starting at $2,695
Used BMW M3
82 Great Deals out of 2,149 listings starting at $3,495
Used Mercedes-Benz S-Class
176 Great Deals out of 6,001 listings starting at $2,500
Used Audi A4
358 Great Deals out of 13,166 listings starting at $1,599
Used Honda Accord
1,230 Great Deals out of 77,867 listings starting at $969

Used Cars For Sale

2016 BMW 5 Series For Sale
118 Great Deals out of 6,677 listings starting at $32,429
2015 BMW 5 Series For Sale
13 Great Deals out of 390 listings starting at $24,800
2014 BMW 5 Series For Sale
79 Great Deals out of 1,863 listings starting at $17,993
2013 BMW 5 Series For Sale
144 Great Deals out of 2,007 listings starting at $15,500
2012 BMW 5 Series For Sale
41 Great Deals out of 695 listings starting at $14,900