coolant boiling out of resorior

Asked by Jan 22, 2015 at 08:21 PM about the 2006 BMW 7 Series 750Li

Question type: General

changed themastat  car still over heating coolant boiling out of coolant bottle cap

4 Answers

25,195

Radiator cap might also be bad, if it can't maintain adequate pressure and allows coolant to overflow at lower temps than normal. But if it is 'boiling over,' then you might want to have the radiator fluid tested for carbon compounds indicative of a blown head or intake gasket. NAPA sells something called a "combustion leak block tester." (escaping combustion gases are leaking into the coolant and causing it to boil and overflow.)

25

Did you bleed the air out of the coolant system?

Check your water pump.

1,495

Bleed your cooling system

Your Answer

Add photo

Related Questions

7 Series

Looking for a Used 7 Series in your area?

CarGurus has 6,100 nationwide 7 Series listings starting at $2,740.

ZIP:

Search BMW 7 Series Questions

BMW 7 Series Experts

#1 lweems
lweems
Reputation 1,710
#2 Tom Demyan
Tom Demyan
Reputation 580
#3 Vince Lee
Vince Lee
Reputation 540
View All

Related Models For Sale

Used Mercedes-Benz S-Class
169 Great Deals out of 6,272 listings starting at $2,000
Used BMW 5 Series
494 Great Deals out of 16,386 listings starting at $650
Used BMW 6 Series
81 Great Deals out of 2,828 listings starting at $6,990
Used Audi A8
52 Great Deals out of 2,095 listings starting at $3,500
Used Mercedes-Benz E-Class
410 Great Deals out of 19,575 listings starting at $1,200
Used BMW 3 Series
1,007 Great Deals out of 31,315 listings starting at $1,000
Used BMW X5
462 Great Deals out of 14,799 listings starting at $1,999
Used Mercedes-Benz CLS-Class
78 Great Deals out of 2,082 listings starting at $6,995
Used Land Rover Range Rover
107 Great Deals out of 4,771 listings starting at $2,500
Used Lexus LS 460
70 Great Deals out of 2,572 listings starting at $6,995
Used Jaguar XJ-Series
46 Great Deals out of 2,706 listings starting at $1,599
Used Dodge Charger
532 Great Deals out of 28,515 listings starting at $2,500
Used Cadillac Escalade
199 Great Deals out of 10,897 listings starting at $2,500
Used Mercedes-Benz C-Class
602 Great Deals out of 24,797 listings starting at $1,995
Used BMW M5
32 Great Deals out of 621 listings starting at $12,995

Used Cars For Sale

2015 BMW 7 Series 750Li For Sale
51 listings starting at $40,990
2014 BMW 7 Series 750Li For Sale
113 listings starting at $28,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.