I live in Canada and we are experiencing a cold snap. It was -41 this morning before the wind chill when I started my 2013 c350. It was plugged in overnight, but outside. I've had it three winters now and only experienced this once before when it was the same frigid temperatures. When starting, it threw a bunch of error messages: Lane Keep Assist Inoperative, Run Flat Indicator Inoperative, ESP Inoperative, Traction Control Inoperative. I let it sit for 10+ minutes to warm up before driving, and once it was warmed up at my destination, I stopped and started the car again to see if it would throw the same messages. It did.. I left it sit for two hours plugged in and started again. I am still getting two messages: Lane Keep Assist and Traction Control Inoperative. It is still decently cold here -28. I just replaced my battery with the high end AGM about a week ago and had the CV boots, front axel shafts and seals replaced. Any ideas??? Cold weather fussiness or something I should be concerned about?

 

Is it snowing or is there ice on the car? I got the Lane Keep Assist/Blind Spot Inoperative message before because of this. My theory is that it's because these sensors get covered by snow or rain or ice. I wouldn't worry about those.

Not sure about traction control though.

 

At those low temperatures, it could be just the cold or something failed or got stuck. Having an engone block heater certainly helps, but that just warms up the engine internals. Everything else is still cold.Maybe a wheel speed sensor or the brakelight switch. Best way would be to scan the codes that would show up.That would at least point you in teh right direction. If teh car is otherwise driving fine, maybe see if it goes away once it isn't quite so cold. Amazing vehicles can even operate in those conditions.

Hope it gets warmer up there soon. Can get fairly cold where I live in winter, but never that cold. -41C is still -41F. Making me cold just typing that.

 

Thanks! The snow/ice hasn't seemed to cause it before, but again I suspect it's the less than pleasant weather.

 

Update: all warning messages cleared once the car warmed up! Thanks for the help. Get your Benz a heated garage is my best advice.

 

Glad to hear you are back running well again and thanks for the update.