Mar 27, 2025BrakesDriver assistance
When operated with driver assist and stop and go assist, the car, often slams the brakes for no reason in the middle of the highway. I have reported this problem multiple times to the dealership and the dealership has kept the car in for investigation multiple times sometimes for more than two weeks. They were able to replicate the problem, but they had absolutely no solution. It’s been a few years now and it keeps happening. This is a liability issue us cars behind me are at risk to collide.
NHTSA ODI 11650987
Sep 8, 2023Speed controlBrakesDriver assistance
The adaptive cruise on the Mercedes has a habit of harsh braking during stop and go traffic. It's not a natural braking manev8, instead it's jarring and I feel like it could cause a rear end with how jarring it is. Many other users are experiencing the same.
NHTSA ODI 11543347
Apr 3, 2023Electrical systemSpeed controlBrakes
I was driving and came to a stop sign. When I was getting ready to pull off my entire vehicle automatically went into park and shut off. I was almost rear ended by the vehicle behind me. People were blowing at me. I just restarted the vehicle after a few attempts it started and I drove off. Also my entire dash went black while I was driving. I also felt water on my feet why on the passenger side ( like a light mist).
NHTSA ODI 11515152
Aug 14, 2022BrakesDriver assistanceCrash
The Brakes Failed - At Mercedes Dealership for Over a Month My Wife could have been killed on the highway going 70MPH with no brakes The car was towed by Mercedes over a month ago and never returned. No one will talk to me. Mercedes will not speak with me. Nor have they contacted the dealer - Letter Enclosed No warning - Just brake failure. Prior to that we got a "Your cameras are not working message" a week prior and the car would warn you another car was there. But there was no car.
NHTSA ODI 11479258
Aug 14, 2022Brakes
What component or system failed or malfunctioned, and is it available for inspection upon request? THE BRAKES & EMERGENCY BRAKES - YES - THE CAR WAS TOWED TO MERCEDES How was your safety or the safety of others put at risk? THE CAR COULD & DID NOT STOP Has the problem been reproduced or confirmed by a dealer or independent service center? MERCEDES TOOK THE CAR OVER A MONTH AGO. NO ONE EVER CALLS ME BACK AND THEY GAVE 3 CASE NUMBERS - I HAVE MADE OVER 16 CALLS Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO. THE DEALER WHERE THE CAR IS SAYS MERCEDES HAS NOT CONTACTED THEM. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? NO WARNING - NO AVOIDANCE - NO BRAKES - THE BRAKES GOT SOFT OR LIKE A SPONGE, YOU HAD TO GO TO THE FLOOR - THEN THEY FAILED. - I DID GET A CAMERAS NOT WORKING WARNING AT TIMES - AS WELL AS THE CAR SWERVING AWAY FROM THINGS THAT WERE NOT THERE.
NHTSA ODI 11479257
Jul 19, 2022Brakes
front brakes make a grinding metal noise during slow motion applying breaks. i been in to the dealer ship multiple times about the issue and they replace the breaks pad and rotor , still have the same issue time down the road.
NHTSA ODI 11474795
Feb 3, 2021SuspensionBrakes
THE VEHICLE HAS E-ACTIVE BODY CONTROL (E-ABC), WHICH HAS DIFFERENT DRIVE MODES THAT AFFECT TRANSMISSION SHIFT POINTS, STEERING INPUT AND SUSPENSION. THE VEHICLE HAS THE OE WHEELS AND TIRES (COOPER ALL-SEASON TIRES). ONE DRIVE MODE IS DESIGNATED 'CURVE,' WHICH CONTROLS BODY LEAN IN CURVES. DEPENDING ON THE SETTING, CURVE HOLDS THE BODY UPRIGHT OR SLIGHTLY LEANS IT INTO CURVES, LIKE A MOTORCYCLE LEANING INTO A CURVE. WHEN IN CURVE MODE AND DRIVING IN A CURVE, THE VEHICLE'S SAFETY OR ACCIDENT AVOIDANCE MECHANISMS MAY UNEXPECTEDLY INTERVENE FOR NO APPARENT REASON, CAUSING VEHICLE INSTABILITY AND AN UNEXPECTED CHANGE IN THE DIRECTION OF TRAVEL. THE VEHICLE BEGINS TO YAW IN ONE DIRECTION, GIVING THE SENSATION OF SLIDING ON WET OR ICY PAVEMENT, AND THEN THE VEHICLE 'BRAKES' ON ONE SIDE, 'PULLING' THE VEHICLE TO THAT SIDE. SOMETIMES THE DRIVER'S SEATBELT WILL TIGHTEN AND OCCASIONALLY, THE 'TRACTION' LAMP ILLUMINATES IN THE DASH. THE ROAD SURFACE IS CLEAN, DRY AND FLAT AND NO LOSS OF TRACTION OR POTENTIAL LOSS OF TRACTION OCCURRED. THIS HAPPENS MORE DURING CASUAL DRIVING THROUGH CURVES THAN WHEN AGGRESSIVELY DRIVING THROUGH CURVES. THIS FIRST TIME IT HAPPENED, THE VEHICLE WAS EXITING A CURVE TO THE RIGHT AND THEN ABRUPTLY YAWED TO ONE SIDE AND THE VEHICLE CROSSED THE CENTER LINE, BEFORE STRAIGHTENING AND RECOVERY. ON ANOTHER OCCASION, THE VEHICLE WAS ENTERING A CURVE TO THE LEFT AND IT ABRUPTLY YAWED AND WAS PULLED TOWARD THE SHOULDER OF THE ROAD BEFORE STRAIGHTENING AND RECOVERY. THERE HAVE BEEN MORE THAN A DOZEN OTHER INSTANCES. THE ROAD SURFACES HAVE ALWAYS BEEN CLEAN, DRY AND FLAT ASPHALT PAVEMENT. ON ONE OCCASION A MERCEDES SHOP FOREMAN WAS IN THE VEHICLE TO WITNESS THE EVENT, WHICH HE DESCRIBED AS AN 'INTERVENTION.' THE MERCEDES BENZ DEALER HAS NOT BEEN ABLE TO DETERMINE THE CAUSE OF THESE OCCURRENCES OR TO FIX THE PROBLEM.
NHTSA ODI 11394561