Well my partner decided to replace the battery on our 2006 Smartfortwo Pure since it's been an extremely cold winter here -30C to -50C since he did this the radio won't work, I get this display when I turn it on that says "safe mode". Now the airbag icon is lighting up on my dashboard. It tells me in my manual to take my car to the dealership but the dealership here that does the servicing for Smart cars is very good at providing lousy service. To site the most recent example we had our car in for two wrench service, they had to order in belts so car went back (two times they ordered wrong parts). After it was left at the dealership for several days we we're called to come get it was ready. We get there it wouldn't start. It had been left outside -28C overnight unplugged. They boosted it ( during that process they broke the foam hatch covers or the battery and never told us. We discovered this a few weeks later when we decided to change the battery. We contacted Mercedes they advised us they would investigate. The extent of that was a phone call from the dealer "saying we understand you're unhappy with our service". Like they hadn't already been told this on more then one occasion. The list of trouble we've had with them goes on. Our hands are tied here as no one else services Smart cars and the next closest dealership for service is out of province which is an 8 hour drive during good weather conditions. Any ideas or suggestions would be greatly appreciated thanks.