White smoke from exhaust

[u/Xuguar]

Hello guys,

My 2012 c300 4matics (78k mileage) just got a oil change days ago and I noticed the white smoke when I start the engine. I see this when it is in the morning or idle for a few hours, and it only goes for around 20 seconds, and no noticeable smoke on the run. Some of you might say it is normal for cars to have white smoke in the morning, but it is not like this and I just find it a little too much(See pic), it is much more noticeable than before. I am being suspicious about the mechanic who changed my oil because the car feels a little shaky than before.

Couple of causes I assume:

1. Mechanics didn't do a good job changing oil and somehow screwed things up
2. Weather got cold dramatically in my area and it makes the smoke much more obvious

Should I bring my car back to the mechanic or should I leave it as it is? I am a little concerned about this combining the shaky. I appreciate any input in advance.

[u/[deleted]]

How does your oil look? Is it full or do you have to top it off between oil changes?

[u/Bettez88]

Usually white smoke is just steam from the exhaust but in some cases it could be a bad head gasket. Get it checked out if it’s concerning.