Overheating

Asked by May 15, 2017 at 11:55 AM about the 1999 BMW 3 Series 318i

Question type: General


my bmw318i overheats and water comes out
through the water bottle lid. i cant possibly see any
leaks on radiator or any horse. thermostat was
changed recently. I have a new  raditor .can
someone help on this one.

8 Answers

1,515

The cooling system probably has an air bubble stuck in it and it needs to be bled. Look up the bleeding procedure for your car on Bimmerfest or Bimmerforums.

I checked the cooling system but it is not that. the fan is working, there is a new water bottle added in as well. The thermostat is now removed and it only heats up in traffic.

1,515

Well, if it's overheating and there is coolant coming out of the reservoir, it's definitely the cooling system. When you replaced the bottle, did you bleed it properly? Like I said, there is probably an air bubble or some type of blockage preventing coolant flow.

2 of 2 people found this helpful.

yes, Silverton radiators fitted it on and they bleed the system and checked the water flow.

1,515

Had the car been overheating for more than a minute or two at some point? How does the oil look? And the coolant too for that matter?

1,515

It could be a bad head gasket causing the excess coolant pressure.

Yes it would overheat in traffic then I had to switch it off or usually when it heats up in traffic I try to get onto a open road where i drive it at 60km/h n then the heat gauge drops back to half

1,515

Yeah, this could be a head gasket issue. Your engine has an aluminum cylinder head, and being much softer than iron, it tends to warp when it is overheated for a long period of time, which in this case could be as little as 5-10 minutes. What does your oil look like? Any chocolate milk color?

Your Answer

Add photo

Related Questions

  • Overheating 8 answers

    my bmw318i overheats and water comes out through the water bottle lid. i cant possibly see any leaks on radiator or any horse. thermostat was changed recently. I have a new raditor .can someone h...

    1999 BMW 3 Series 318i

    -

    General

  • Overheating 6 answers

    I have a 1996 Bmw, it's overheating ... Can anyone help me?

    1996 BMW 8 Series

    -

    General

  • Overheating 2 answers

    My car is overheating like in 10 minutes of Drive the hall from the thermostat have a lot of pressure I have check the motor pressure and all of them are 126 I have change the radiator fan fan cl...

    2004 BMW 3 Series 330Ci

    -

    Maintenance & Repair

  • Overheating 2 answers

    I have a 2000 328ci with a overheating problem. The head gasket was checked 1st and that's good. I replaced the radiator and thermostat. It was flushed and proper amount of BMW coolant was added. Wi...

    2000 BMW 3 Series 328Ci

    -

    Maintenance & Repair

  • Bmw overheating 5 answers

    I replaced my radiator, thermostat, water pump, new upper and lower radiator hoses and new coolant reservoir. It still wants to overheat when I drive on the interstate and It's full of coolant and...

    2003 BMW 3 Series 325i

    -

    Maintenance & Repair

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 1,904 nationwide 3 Series listings starting at $2,300.

Postal Code:

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,880
#2 Robert Charlson
Robert Charlson
Reputation 1,610
#3 Matt Mankinen
Matt Mankinen
Reputation 1,240
View All

Related Models For Sale

Used BMW 5 Series
25 Great Deals out of 518 listings starting at $3,800
Used BMW M3
90 listings starting at $13,994
Used Mercedes-Benz C-Class
160 Great Deals out of 1,485 listings starting at $2,900
Used Audi A4
47 Great Deals out of 723 listings starting at $1,895
Used Ford Mustang
8 Great Deals out of 1,219 listings starting at $2,995
Used Mercedes-Benz E-Class
39 Great Deals out of 496 listings starting at $3,900
Used Honda Accord
71 Great Deals out of 1,126 listings starting at $748
Used BMW X5
34 Great Deals out of 749 listings starting at $4,000
Used Chevrolet Camaro
782 listings starting at $13,040
Used BMW 7 Series
6 Great Deals out of 156 listings starting at $1,850

Used Cars For Sale

2017 BMW 3 Series For Sale
18 Great Deals out of 427 listings starting at $38,403
2016 BMW 3 Series For Sale
14 Great Deals out of 126 listings starting at $20,995
2015 BMW 3 Series For Sale
3 Great Deals out of 58 listings starting at $19,995
2014 BMW 3 Series For Sale
29 Great Deals out of 208 listings starting at $19,850
2013 BMW 3 Series For Sale
33 Great Deals out of 381 listings starting at $16,948

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.