When I started up my 07 MCS Automatic at -20 C or -4 F the yellow engine light came on (Full engine power no longer available). The car sounded fine at this time so I started to drive out of the parking lot but the car had no power, it was moving at an idle speed only. As I continued to idle along in stop and go traffic the car started revving up and down like it was going to shut off. When I would take my foot of the break the car would jump fwd at first but after 5 minutes or so the car did not want to move at all until I hit the gas peddle, the engine would then make a terrible noise like it was going to cease up solid. During this I could smell something burning like sugar. After this I pulled into a parking lot to call the dealership to come pick up the car because it would not go any faster that 10Km/hr and I was afraid I would cook the engine(new with only 2500Km.After I stopped the car and shut it down I restarted it to see what would happen and everything was fine, no yellow engine light. Once I arrive home I looked under the bonnet to see if I could see anything wrong but there was nothing except for the smell of gas after I remove the oil cap.


The dealership will not be able to take a look at the car for 6 more days so I’m concerned if I should continue to drive.

Does anyone have any ideas on what the problem may be?

 

See if you smell gas when you retract the dipstick. If there is any second thought there is fuel in your oil, I would wait for the dealer to take the car. Had a similar problem with a VW g60.
Let the warranty take care of it, before the dealer tells you its your fault, and tries to rape you.

 

Seems to be a frozen throttle valve. I just had this problem! See this thread; it also has a YouTube video in it of the problem occurring:

https://www.northamericanmotoring.co...ailable-6.html