2017 C350e Engine misfire after sport+ mode

[afstcklnd]

I did a short Sport+ mode run and pushed the car from 20 to 70 on full throttle - shortly afterwards and back in Comfort mode a slight 'hesitation' started to occur when the engine was on. Within 24h that had developed into a full misfire problem and the engine warning light is on. On startup, the engine light flashes 25 times before staying on - not sure if that's an indicator.

Over 10 days until I can get a local Merc specialist to look at it so wondering if anyone has seen this before?

 

[alexanderfoti]

Flashing light indicates a current misfire.

Its most likely something simple like a coil or bad spark plug, but it's going to be difficult to fix it before your appointment via a forum post