2006 BMW 330i loosing coolant and no heat

Asked by Tea Mar 15, 2016 at 06:42 PM about the 2006 BMW 3 Series 330i Sedan RWD

Question type: Maintenance & Repair

My 330i is now loosing coolant and the heater isn't
working, it just blows cold air.  I've already replace
the thermostat, water pump, temp sensor, and
upper radiator hose. I haven't noticed any coolant
leaks but I could have missed it. It doesn't really
overheat, I did get the amber warning signal once,
but that was it. The cooling fan tends to get loud
and then it will go away after a while. My expansion
tank gets bone dry. I don't think I have a blown
head gasket, but if you guys can give me some
more warning signs of a blown head gasket, I'd
appreciate it. Other than that, I have no clue what it
could be, unless my water pump failed again, but I
was replaced about a week ago. Any advice would
be amazing!

3 Answers

Tea answered 8 years ago

I just had it changed, do you think it could really be that again? Sorry, just curious! :)

Mark helpful

Elbanhawy answered 5 years ago

Could be a bad heater core, with a slow leak, check where the gas pedal is if you find any moisture, it could be a slow leaking heater core

Mark helpful

Your Answer:

Related Questions

  • 2006 BMW 330i loosing coolant and no heat 3 Answers

    My 330i is now loosing coolant and the heater isn't working, it just blows cold air. I've already replace the thermostat, water pump, temp sensor, and upper radiator hose. I haven't noticed any co...

    2006 BMW 3 Series 330i Sedan RWD

    -

    Maintenance & Repair

  • 2006 bmw 330i 2 Answers

    Recently my 2006 bmw 330i began running rough and hesitant like it was about to stall. Just replaced vanos solenoids and vehicle ran fine then the symptoms returned after 5 min drive. Whats next ...

    2006 BMW 3 Series 330i Sedan RWD

    -

    Maintenance & Repair

  • 2004 BMW 330i ZHP overheating ? 9 Answers

    So the other day i was driving back home with a buddy after work. We were out of town and there wasnt much traffic so we let it go a bit. Nothing to excessive, and not for a sustained period of ti...

    2004 BMW 3 Series 330i Sedan RWD

    -

    Maintenance & Repair

  • Issue starting my 2006 330i. 2 Answers

    When I hit the ignition button, engine is slow to turn over, but ultimately starts. Happening more often (coinciding with weather getting colder) and the pace of turning over is getting slower. This...

    2006 BMW 3 Series 330i Sedan RWD

    -

    Maintenance & Repair

  • Bmw 325ci coolant light 1 Answer

    I drive a 2005 bmw 325ci. Recently my coolant light had been turning on and off whenever I use the heater. They just replaced the thermostat and radiator hose thinking that was the cause. But the ...

    2005 BMW 3 Series 325Ci Coupe RWD

    -

    Maintenance & Repair

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 1,176 nationwide 3 Series listings starting at $1,995.

Postal Code:

Shortcuts

Search BMW 3 Series Questions

CarGurus Experts

  • #1
    Robert Charlson
    Reputation
    3,950
  • #2
    apbimmer98
    Reputation
    3,100
  • #3
    Abu Luca
    Reputation
    2,980
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used BMW 5 Series
19 Great Deals out of 321 listings starting at $4,500
Used BMW M3
8 Great Deals out of 90 listings starting at $15,995
Used Mercedes-Benz C-Class
98 Great Deals out of 1,455 listings starting at $3,799
Used Lexus IS
25 Great Deals out of 311 listings starting at $5,900
Used BMW M5
56 listings starting at $26,800
Used Dodge Charger
38 Great Deals out of 645 listings starting at $4,888
Used BMW X3
43 Great Deals out of 1,013 listings starting at $4,995
Used Ford Mustang
65 Great Deals out of 1,259 listings starting at $4,995
Used Mercedes-Benz E-Class
30 Great Deals out of 496 listings starting at $5,700
Used BMW X5
47 Great Deals out of 1,134 listings starting at $3,995
Used Chevrolet Corvette
29 Great Deals out of 1,060 listings starting at $15,871

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. Content will be removed if CarGurus becomes aware that it violates our policies.