Bmw 3 series no hot air

Asked by Nov 18, 2016 at 02:01 PM about the 1999 BMW 3 Series

Question type: Maintenance & Repair

Coolant light came on so I topped it up, but I was
rushing before work and (stupidly) never put the
cap back on and drove to work on the way back
from work the light came back on, checked it and
relised my mistake, with no coolant left at all! then
top the coolant up again, car is running fine apart
from the heater has now stopped blowing hot air,
what can I do?...

It's a 1999 bmw 3 series

Thanks

1 Answer

109,415

I think you have trapped air in the system. Park the car on a slope facing up hill. Take the radiator cap off with the engine cool, top it off if needed and idle the car with the heater on until it is fully warm. This will allow the trapped air to vent. Top off if needed and you hopefully will have heat. I am surprised that you did not destroy your engine!

1 people found this helpful.

Your Answer:

BMW 3 Series Experts

  • #1
    Tom Demyan
    Reputation
    5,850
  • #2
    Robert Charlson
    Reputation
    1,790
  • #3
    Matt Mankinen
    Reputation
    1,410
View All

Related Models For Sale

Used BMW 5 Series
15 Great Deals out of 586 listings starting at $3,990
Used BMW M3
4 Great Deals out of 72 listings starting at $17,950
Used Mercedes-Benz C-Class
85 Great Deals out of 1,697 listings starting at $1,999
Used Audi A4
30 Great Deals out of 741 listings starting at $3,000
Used Ford Mustang
20 Great Deals out of 1,358 listings starting at $2,995
Used Honda Accord
31 Great Deals out of 1,742 listings starting at $2,800
Used BMW 7 Series
16 Great Deals out of 174 listings starting at $4,995
Used Chevrolet Camaro
6 Great Deals out of 1,085 listings starting at $4,500
Used Mercedes-Benz E-Class
33 Great Deals out of 670 listings starting at $4,900
Used BMW X5
30 Great Deals out of 1,055 listings starting at $5,000

Used Cars For Sale

2018 BMW 3 Series For Sale
12 Great Deals out of 416 listings starting at $38,750
2017 BMW 3 Series For Sale
7 Great Deals out of 124 listings starting at $26,995
2016 BMW 3 Series For Sale
3 Great Deals out of 67 listings starting at $23,993
2015 BMW 3 Series For Sale
9 Great Deals out of 99 listings starting at $20,950
2014 BMW 3 Series For Sale
12 Great Deals out of 332 listings starting at $16,950

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.