See also:

Restoring the factory settings
Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Exhaust check
WARNING Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death. Do not run the eng ...

2012 Mercedes-Benz CLS-Class Review by Carrie Kim
As I approached the all-new 2012 Mercedes-Benz CLS-Class, I was filled with a mix of elation and bona-fide terror. It's similar to when you walk into a very nice home and the first thing you say t ...