white smoke & oil consumption

[JimM5f10]

Hello everyone, I have a problem with my M5.
When I stay for a while slowing down during the acceleration on the spot a cloud of white smoke appears. Can pcv valves create this problem? I consume 1L of oil for 1000km

The connecting rod and crankshaft bearings were replaced 4000km ago

Thanks you for reponse

[KurtsM5]

White or gray? Gray smoke is oil, white is water not really smoke. Can you smell it? My car is catless and did the same, replaced the pcv hoses and it stopped.

[JimM5f10]

Gray and it smells like burnt oil
I’m in stock

[Beast27]

Mileage? I had similar issues and ended up being valve seals. If you do a search of high oil consumption, this could be the culprit. I was at 82k miles good luck.

[JimM5f10]

I have 100000km
She only smoked slowly by accelerating or all the time?

[KurtsM5]

Have you replaced the PCV hoses?

[JimM5f10]

I changed the pcv valve last night, I'm driving tomorrow night with I'll see

[KurtsM5]

Originally Posted by JimM5f10

I changed the pcv valve last night, I'm driving tomorrow night with I'll see

Both I hope?

[JimM5f10]

yes

[KurtsM5]

Did it help?

[JimM5f10]

I still have my problem the replacement of pcv valves to only reduce the smoke a little but it still consumes as much oil.
I thought I would switch to the 5w40 maybe it would help with the consumption of oil?

[KurtsM5]

I guess it's worth a try.