White smoke

[shailesh]

hi all

I notice an issue after my car idles for about 5 mins. It starts having a light haze of white smoke. It will burn your eyes if too close to the exhaust.
My car is not using water nor does the oil have water in it.
It starts fine whether it is hot or cold.
Did a trip to East London and had no issues. Fuel consumption was fine.
I have replaced the oil to air separator.

I can't seem to find the reason it does this. :dunnoanymore:

any suggestions?

 

[Coisman]

Valve stem seals most likely.

 

[vamudzengi]

Valve stem seals most likely.

Yes, there is a high likehood.

Sent from my FIG-LX1 using Tapatalk

 

[Nikhil]

is this only on cold start? what car is it? does the car park outside?

 

[shailesh]

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

 

[Sheldon13]

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

Sounds like valve stem seals

 

[driaannel]

Only suggestion I can give is to not stand so close to the exhaust. Your eyes will thank you later.

Other than that, Valve stem seals

 

[Schalk94]

Mine also does it ,but especially when it's still cold,but it smells like diesel fumes rather than an oil burning smell though.

 

[Nikhil]

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

valve steam seal issues on the diesels are almost non existent, does the car still have cats in place?

 

[vamudzengi]

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

valve steam seal issues on the diesels are almost non existent, does the car still have cats in place?

How so?

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[r0ckf1re]

Don't idle the car for 5 minutes

 

[Schalk94]

I had my car's injectors tested recently and 1 of the 6 injectors is sort of nearing the higher end of the "range" in which is still works perfectly. The mech said that could be the cause of the smell on cold start(which is when mine is most prominent) ,because of the iinjector dripping slightly and causing some of the fuel to not get burnt and thus cause the smoke.

 

[shailesh]

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

---

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

valve steam seal issues on the diesels are almost non existent, does the car still have cats in place?

car has software and downpipe

 

[KiLLRoYza]

I noticed the same on mine as soon as I did my DP. Never did it before, and has done it ever since.

 

[Nikhil]

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

---

is this only on cold start? what car is it? does the car park outside?

No, I noticed this after a while when idling
E60 530D
the car is parked inside the garage

valve steam seal issues on the diesels are almost non existent, does the car still have cats in place?

car has software and downpipe

---

i would say turbo but i would start off by removing the intercooler and boost pipes and cleaning up everything if the breather was clogged oil would have built up in the cooler and would be burning out slowly.

 

[Maximus03]

I noticed the same on mine as soon as I did my DP. Never did it before, and has done it ever since.

I too noticed that my car started doing this after the downpipe, very pungent smell. It does it regardless of engine temperature.

 

[kilotango]

if its valve stems, surely you'd see blue smoke? the general test for this is start, let car warm up, then hold revs at 2.5k rpm for like 30 seconds, then rev hard... and you'll see a nice blue puff come out the back if the stem seals are shot.

from what i know, white smoke is usually water vapour, or if theres a serious problem with the CCV/PCV and its burning alot of oil at once, or possibly even just oil leaking passed the turbo seals at idle.. but you'd smell oil properly.