2023 Mercedes-Benz Redundant Eqs 450 problems, complaints & recalls
Most-reported problem areas: Forward Collision Avoidance: Warnings (2) · Electrical System (2) · Tires (1)
Safety recalls (1)
Electrical System:wiring:fuses And Circuit Breakers 2024-02-16 · campaign 24V115000 · 31,848 vehicles
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023-2024 C300, AMG C43, S580e, S580, Maybach S580, Maybach S680, AMG SL43, AMGSL63, GLC300, EQE350, EQE500, EQS450, EQS580, AMG EQS, 2023 S500, AMG SL55, AMG EQE, 2024 E350, E450, AMG C63e S, CLE300 Coupe, CLE450 Coupe, and GLC300 Coupe vehicles. The 80-Amp fuses may have been manufactured incorrectly, which can cause the fuses to fail.
Risk: An 80-Amp fuse that fails can result in a sudden loss of drive power or a loss of critical safety functions such as the restraint systems or instrument cluster, increasing the risk of a crash or injury. Additionally, there could be an increased risk of a fire.
Fix: Dealers will replace the main fuse boxes, free of charge. Owner notification letters were mailed April 5, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024030008.
Service bulletins (122)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Engine 2025-10-27 · LI83.30-P-079196 · Service Bulletin/Repair Instructions
complaint yellow instrument cluster message: "cooling system fault, operating energy input reduced, service required". cause fault code "b3a0077 - the regulation valve in the refrigerant circuit for the battery cooling gets stuck open. the ordered position cannot be achieved" stored. faulty expansio
Seats 2025-10-10 · LI91.10-P-078305 · Service Bulletin/Repair Instructions
complaint the "easy entry and exit feature" function deactivates itself after a brief period. (see attachment). cause the cause is currently being investigated. remedy update the hu7 to the latest software version, then perform a factory reset of the hu7. steps to perform factory reset: navigate to
Electrical System 2025-10-10 · LI82.62-P-078631 · Service Bulletin/Repair Instructions
complaint clanking noise from the area of the speakers in the doors. cause under analysis. remedy to narrow down the cause, first of all remove the door trim. • if the noise continues to occur even with the door trim removed, then continue the diagnosis working towards the speaker and if necessary,
Electrical System 2025-09-16 · LI00.00-P-079603 · Service Bulletin/Repair Instructions
complaint the ota software update prepares the srs/orc controller and enables it to be updated remotely in the future. based on technician feedback, the ota (code: 25p5496529) does not start even after an extended period of time and several driving cycles. in addition, the "continue" button is graye
Electrical System 2025-09-05 · LI80.20-P-078308 · Service Bulletin/Repair Instructions
complaint one of the flush door handles (also referred to as seamless door handles) does not extend/retract (and/or) the keylessgo sensor surfaces do not respond. cause multiple possible causes can be inferred from the table, see remedy (additionally as reference table in attachment). remedy 1) keyl
Electrical System 2025-08-08 · LI54.10-P-079534 · Service Bulletin/Repair Instructions
complaint: red 12 v battery warning message in ic dtc stored in ezs or currently: b161609 no dtc in dc/dc converter dc/dc converter is not providing any output voltage or output current cause: due to a reduction in resistance at the hv voltage divider, the dc/dc converter measures an incorrect hv vo
Showing the 6 most recent of 122 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-08-11 · Forward Collision Avoidance: Warnings · 🔥 fire“the vehicle went to catch on fire and the electrical socket burnt so it could no longer charge. the airbag showed malfunction passenger side door. multiple times the collision warning has malfunction and alerted there was a collision when none occurred.…”
2025-07-17 · Forward Collision Avoidance: Warnings“active emergency stop assist inoperative warning has shown up more than once and the dealer can not duplicate the warning or repair. it is causing frequent phantom braking and sudden stops both in normal driving use and cruise control.…”
2025-03-30 · Electrical System“car turns off completely while driving with "battery malfunction" and "towing not permitted" error. this happened while driving on a highway at the end of a bridge going downhill so i was able to pullover to the shoulder before the vehicle came to complete stop but if this happened while on the bridge going uphill, that could've been extremely dang…”
2025-03-27 · Electrical System · 16,000 mi“the contact owns a 2023 mercedes-benz eqs 450. the contact stated that while attempting to charge the vehicle, the contact became aware that the vehicle failed to begin charging as expected. after a visual inspection, the contact observed that the charging port appeared to be damaged, showing signs consistent with electrical burns. the messages "ch…”
2024-09-25 · Service Brakes, Hydraulic · 1,000 mi“the contact owns a 2023 mercedes-benz eqs450. the contact stated while driving over a bump in the roadway and depressing the brake pedal, the vehicle failed to immediately stop, causing the braking distance to become extended. the contact stated that the failure occasionally occurred while braking without driving over a bump in the roadway. the veh…”
2024-09-20 · Tires“so i've had to have 1 tire replaced already working on number 2. first one not sure what the problem was, but this tire is having problems holding air. it'll hold air for about 9 hours then the gauge on inside of car comes in saying low tire pressure. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.