slow crank, car won't start unless foot on brake
2009 C300 4matic wouldn't start. All dash lights went on but didn't start unless I put my
foot on the brake while turning the key. Confirmed both keys had same result. It's at the
dealer now. Service coordinator tried it and said it's a "slow crank" so when I asked what
that meant he said it could be a lot of things. He then said they would have to do
extensive diagnosis, asked me to guarantee a minimum of $152 for that labor which would
go towards any repairs, and said diagnosis could take two days. I no longer have a
warranty so any cost is mine. What should I expect re: options and cost?