One problem related to car slowed down on its own has been reported for the 2014 Mercedes Benz CLA250. The most recently reported issues are listed below.
What is the problem-pre safe malfunction error when does it happen-while driving is it predictable-no is it safe-no why-the car suddenly loses acceleration ,when the pre-safe error comes on. Scenario-driving a cla 250 at 60 mph on a motorway on a quiet road in front of a truck. . . . Pre-safe malfunction kicks in the car slows down and loses accln. The truck driver cannot predict this behavior a this is not a normal pattern to slow down suddenly from 60mph on a quiet freeway. Very very dangerous.
| Vehicle Speed Control problems | |
| Fail To Accelerate problems | |
| Cruise Control problems | |
| Car Slowed Down On Its Own problems |