E350e white smoke?

Tiny
MERC12345677
  • MEMBER
  • 2017 MERCEDES BENZ E350
  • 2.0L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 133,600 MILES
E350e is smoking a lot of white smoke and only giving 2 codes on launch P22797A and P06DA00
Saturday, November 8th, 2025 AT 2:36 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
The first thing I would do is check the engine oil level and the engine coolant level when the engine is cold. If the engine oil is over filled it can cause white smoke, also if you have a blown head gasket the coolant will be low and the white smoke will have a sweet/pungent smell.

P2279-7A - Intake Air System Leak

P06DA00 - Engine Oil Pressure Control Circuit Performance

Also, remove the oil fill cap on the engine to see if it has a brown/whitish goo, this will be a sign the engine coolant is leaking inside the engine. Please go over this guide for more information.

https://www.2carpros.com/articles/white-smoke-or-steam-coming-from-the-exhaust-pipe

Please upload a short video in your response of the problem, so we can see what's going on.

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Sunday, November 9th, 2025 AT 10:50 AM

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