Update! Long story short. Dealer finds gas in the charcoal canister. Car was shooting gas into the engine causing misfires. Cracked fuel system. They had to replace the entire fueling system/lines. After getting it back, CEL continues to come on, now an Emissions problem. Car has been to the dealership many times and I’ve owned it under a year. Had to file a complaint with MB USA. Car hasn’t had any misfires since then and no CEL light since taking it to the dealership 5,000 times.
Now I have another issue. Collision assist inoperative error and the car touched the breaks (on its own) while I was on the highway, not close to other cars. Dangerous.
I wouldn’t recommend a CLA to anyone! Biggest piece of shit. Freaking brand new car with all these issues.