2019 Mercedes-Benz A 220 4matic problems

Filed Oct 21, 2026 · Airbags, Electrical · CA

Subject: Recurring SRS Warning and Driver’s Knee-Airbag Fault — 2019 Mercedes-Benz A220 I am reporting a potential safety concern involving the Supplemental Restraint System (SRS) in my 2019 Mercedes-Benz A220. The vehicle developed a recurring SRS/airbag warning. Mercedes-Benz identified diagnostic trouble code B000411, described as a driver’s knee-airbag squib short circuit to ground. During the initial visit, the dealership inspected and reinstalled the component. The warning subsequently returned. The dealership later recommended replacing the driver’s knee airbag, with an estimated repair cost of approximately $3,600. I am concerned that a recurring fault in the airbag system could affect the vehicle’s ability to provide intended occupant protection in a crash. I have contacted Mercedes-Benz Customer Care and filed a complaint with the California Bureau of Automotive Repair. I respectfully request that the federal safety agency review this reported safety issue and determine whether it may indicate a safety-related defect affecting other vehicles. Vehicle: 2019 Mercedes-Benz A220 Diagnostic code: B000411 Repair estimate: Approximately $3,600 I can provide dealership records, diagnostic information, and correspondence upon request.

Filed Aug 11, 2026 · Electrical, Engine · GA

As of June of 2026 i witnessed my thermostat gauge going from cold to Hot in a back and forth motion. This rising in temperature on the thermostat gauge has happened during acceleration above 45mph, sitting idle with AC on, and while sitting idle after only about 10 mins of car being powered on and in motion. Because the vehicle is under warranty i believed parts would be replaced with new parts but as of today August 11th, 2026, the problem continues and has now been reaching the hot meter on the thermostat gauge. I have sent my car back to my dealer 3 times in a month in a half with the same issue happening repeatedly. Following the second repair period my car stopped unlocking on and off for the days following and now that has been upgraded to a recall issue which was not fixed or truly given any attention at all. This has put me in a hardship position and has not been attended to properly from the first repair. I have In real time recordings of this issue as evidence and am needing some assistance on this matter. I also have the invoices of both repairs which show that no repair was done to the actual affected areas of my vehicle instead they worked on parts that were not of concern.