[Gure]

Hello everyone. Having problems with rough idle after warm up with my e90 320d 163hp.
After weather got colder outside like -10 car started to idle really rough after warm up. When it reached normal temperature after ~15s of idle its starts to smoke a little blue smoke from exhaust and idle really really bad. Before winter i changed all 4 glow plugs and glow plug relay.

When you crank it up in the morning at cold engine it idles nicely but after warm up is starts to shake like the motor is going to stall at every moment.

For the blue smoke what could it be? Turbo failing? (I have no power loss, car drives normal no shaking or smth.)

Any one had this problem?
Thanks for any help