is it possible to see water vapour from the exhaust when it's about 23 celsius/ 73.5 fahrenheit?
if no ...so what's is that white smoke?..... do i have a serious problem here ......:-SS
BTW.....it's a 740i 1998 with 54,000 miles on it.
2007-10-31 01:34:47 · 4 answers · asked by ziggan 1 in Cars & Transportation ➔ Car Makes ➔ BMW
You are not seeing water vapor at that high of a temp. What you are seeing is oil burn off, and with that low of miles on the car its a concern.
What has happened is some wear there is oil getting in the combustion camber and burning. There is two ways this could happen. One you have a broken valve seal and oil is dripng from the head into the cylinder. Two you have blown your piston rings and when the piston is driven down the oil is not being scraped of the cylinder properly and oil is getting in the combustion chamber that way (it would be alot of white smoke by the way).
Judging from how old the car is to how many miles are on it. you may be lucky and have a loose valve seal. Take it to a local shop and have them look into it.
2007-10-31 02:07:16 · answer #1 · answered by victor s 3 · 2⤊ 0⤋
It's normal to see some white smoke when the engine just starts, before the exhausts heats up. As long as it's not black smoke (oil) or bluish smoke, you're fine.
With a hot engine, you still get black/blueish smoke and it smells bad, you have a problem.
54,000 miles is extremely low miles for a 9 year old car (6,000 miles/yr). If anything, you probably have a problem associated age or poor maintenance than wear & tear.
Cars driven just a few miles every time tend to have exhaust corrosion problem because water builds up in the exhaust without having time to evaporate. My buddy's 2 previous E36 BMWs have the exact same problem at the exact same mileage...70k+ miles. Probably nothing to do with your white smoke.
2007-10-31 06:12:01 · answer #2 · answered by Snowie 6 · 0⤊ 0⤋
Yes, it's just water vapour from the catalytic converter. Thats the converter part, it uses heat and a chemical reaction (catalyst) to convert the Co2 (carbon dioxide) to H2O (water) which flashes to steam and exits with the exhaust.
2007-11-02 14:43:01 · answer #3 · answered by Robb H 2 · 0⤊ 0⤋
yes u can see water vapor anytime,,, look at oil for water and water for oil... if its never run out of oil or water its probably OK.
2007-10-31 01:55:19 · answer #4 · answered by Anonymous · 0⤊ 0⤋