2014 Mercedes-Benz CLA250: Drivetrain Electronic Gremlins
May 16, 2014
The day after our long-term 2014 Mercedes-Benz CLA250 insisted its nav screen was being stolen, I discovered another (and certainly more alarming) quirk.
Here's what it did.
I was driving in the ebb and flow of freeway traffic, alternately using the transmission's manual and automatic modes as usual. At one point, I returned to the throttle to find no forward progress at all. I glanced down and saw that the transmission was now in Neutral. It did this of its own accord.
I nudged the selector down to re-select Drive, and resumed driving. At this point I noticed an alert had flashed up in the instrument cluster: "Pre-Safe Functions Limited. See Owner's Manual."
The alert then blinked away, to be replaced by the one you see in the lead shot: "Cruise Control Inoperative." And it was. The cruise was no longer functional.
A key cycle performed later returned it to its normal self.
This car has issues.
Jason Kavanagh, Engineering Editor