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What 66 owners told NHTSA about the 2018 Mercedes-benz E-class Wagon

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (66)Crash / fire / injury (7)Electrical system (13)Engine (13)Wheels (8)Steering (7)Transmission & drivetrain (6)Driver assistance (5)Body & structure (4)Brakes (4)Seat belts (4)Speed control (4)

4 of 66 complaints match · Brakes · clear filters

Feb 8, 2020Electrical systemSpeed controlBrakes

THIS NOTE REGARDS COMPLAINT NUMBER: 11301860, WHICH I PREVIOUSLY REPORTED. PLEASE REFER TO IT FOR INFORMATION. MERCEDES-BENZ TOOK THE VEHICLE TO M-B FAYETTEVILLE, NC ON 1-31-20 AND RETURNED IT ON 2-3-20. AFTER ONLY 54 MILES, THE VEHICLE IS PERFORMING EXACTLY AS IT DID WHEN I FIRST REPORTED THIS ISSUE. IN MY VIEW, THE DEFICIENCIES CAN LEAD TO A SERIOUS ACCIDENT. IT'S ELECTRONIC "SAFETY" ASSIST FACILITIES LULLS ONE INTO A DEPENDENCY AND FALSE SENSE OF SECURITY. THEN, THEY STOP WORKING WHEN THE CAR IS BEING DRIVEN ON BUSY STREETS AND HIGHWAYS.

NHTSA ODI 11307931

Jan 25, 2020Electrical systemSpeed controlBrakes

MY VEHICLE IS A 2018 MERCEDES-BENZ E63S. ON THE HIGHWAY OR IN TOWN, IT REPORTS "BRAKE-ASSIST INOPERABLE; BLIND SPOT ASSIST INOPERABLE; DISTANCE ASSIST INOPERABLE"; PLUS, THE CRUISE CONTROL HAS STOPPED WORKING. THE TROUBLE OCCURS INTERMITTENTLY. THEY ARE NOT FALSE MESSAGES. THE ITEMS REPORTED DO STOP WORKING. THAT'S EXCEEDINGLY DANGEROUS BECAUSE THE VEHICLE ESTABLISHES A FALSE SENSE OF SECURITY. BEYOND THAT, THE ENGINE IN THE CAR HAS LOST POWER NUMEROUS TIMES. THAT COULD BE CALAMITOUS IF YOU WERE PASSING AND A CAR SUDDENLY CAME AT YOU HEAD-ON. I HAVE REPORTED THIS TO MERCEDES BENZ BUT THEY HAVE FAILED TO DO ANYTHING. THEY ACT AS IF THEY SIMPLY DO NOT CARE. GO FIGURE. BUT THAT'S THE TRUTH. THAT'S OUR EXPERIENCE, AT LEAST.

NHTSA ODI 11301860

Jan 3, 2020Brakes

GOING THRU INTERSECTION AT FLANDERS RD AND MONTAUK HIGHWAY IN HAMPTON BAYS NY AT 15-20 MPH THE CAR WITHOUT ANY WARNING CAME TO A COMPLETE STOP

NHTSA ODI 11296816

May 1, 2019BrakesDriver assistance

THE CAR ACTIVATED ITS EMERGENCY BRAKING FUNCTION UNEXPECTEDLY. I WAS DRIVING ON A COMMUNITY COLLEGE CAMPUS STREET. NO CARS NO BAGS NO WIND NO ANYTHING AT ABOUT 20-25 MPH. ALL CLEAR AIR TEMP 83 DEGREES F. SUNSHINE. NO ADVERSE CONDITIONS. CAR SUDDENLY SLAMMED ON BRAKES WITHOUT ANY WARNING OR REASON WHATSOEVER. SEATBELT TIGHTENED PER PROCEDURE. FORTUNATELY THERE'S WAS NO ONE BEHIND ME TO REAR END ME. TOOK CAR STRAIGHT TO DEALER. SCANNED FOR CODES. NONE FOUND. CAR IS PERFORMING AS DESIGNED. NO. THERE ARE OTHER DOCUMENTED CASES ON LINE IN THE MERCEDES FORUMS. PLEAS INVESTIGATE.

NHTSA ODI 11205093

Working with the data? Download all 66 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Mercedes-benz E-class Wagon verdict →