2022 Mercedes-Benz EQS 450 Technical Service Bulletins

281 technical service bulletins (TSBs) are on record for the 2022 Mercedes-Benz EQS 450. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11021153Jul 31, 2025Seats. Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. (see attachment). Cause The cause is currently being investigated. Remedy 1. Update the A26/17 MBUX multimedia system (head unit) to the latest software version FUP5 Opt. (E505.4) or newer. 2. Perform a factory reset of the head unit after the update. If the issue continues: • Capture a head unit log and a Body CAN trace…
• 11021108Jul 25, 2025Suspension. Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements and/or Creaking/crackling noises from the area of the wheel bearing on the front axle when cornering/ maneuvering. Sound file attached for comparison. MUST match noise for proper diagnosis. NOTE: Steering functionality is not affected. Cause Contact area between wheel bearing and steering knuckle.
• 11020951Jul 25, 2025Forward collision avoidance, Electrical system, Lane departure. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system software available for certain subject vehicles. The updated software improves system stability and enhances the robustness of the driver assistance system. MBUSA will conduct an OTA service campaign. Remote software updates are automatically downloaded and installed in the customer’s vehicle free of charge and do not…
• 11020674Jul 11, 2025Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the instrument cluster software does not correspond to current production specifications. MBUSA will conduct an OTA service campaign. The instrument cluster will receive an OTA software update that increases the robustness and system stability for the instrument cluster as well as the head-up display.
• 11019782Jun 28, 2025Lane departure, Forward collision avoidance, Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has updated driver assistance system SCN coding available for certain subject vehicles. The updated SCN coding improves system stability and enhances the availability of driver assistance features. MBUSA will conduct an OTA service campaign. Remote SCN coding updates are automatically downloaded and installed in the customer’s vehicle free of charge and…
• 11019746Jun 17, 2025Other or unknown. Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numbers, and how to identify. • Network/wiring architecture groups to baumuster quick reference. • Platform to baumuster quick reference.
• 11019743Jun 12, 2025Engine. Complaint Reduced Drive Power' warning displayed on Instrument Cluster, as Illustrated in the Picture, but no relevant fault codes are present.
• 11019747Jun 9, 2025Steering. Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function), noise (breakaway noise) when leaving the limit stops of the height adjustment. Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Driver seat control unit software 2.
• 11018701May 29, 2025Seats. Complaint Squeaking or creaking noises on uneven roadways, in turns, or when moving in their seat. Cause Noise in the backrest adjustment mechanism Remedy The adjustment mechanism is treated with dry lubricant spray A000 989 35 60 to rectify the noise. To do this, proceed as follows: • Move the seat to the front position and put the backrest into a lying position. • Due to the risk of soiling on the left and right…
• 11018610May 27, 2025Electrical system. Complaint Vehicle will not start, High Voltage Malfunction error in IC Cause The FUSI (function safety) lock is activated which is causing the vehicle to not operate. Remedy SW resolution implemented with BMS SW versions greater than or equal to 50 (ex. 24/30 50). An XSF ticket is required to unlock the FUSI restriction. Open a XSS ticket for FUSI unlock and BMS SW verification. Provide the D7 user id performing…
• 11018613May 22, 2025Exterior lighting. Complaint The adaptive rear compartment lighting is sporadically inoperative. In one or all rear interior lamps, one of the following specified fault codes (DTC) is stored. • E48/3 (Adaptive rear interior lamp, roof, left) / DTC B17D149 - The "Adaptive interior lighting" control unit for the rear left roof has malfunctioned. There is an internal electrical fault.
• 11019018May 21, 2025Transmission and drivetrain. Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner…
• 11018228May 8, 2025Suspension. Complaint Rattling/knocking noise from the rear axle steering is audible when driving on rough terrain or cobblestones. Cause Relative movement of toothed rack relative to housing. Remedy 1. Detach underfloor paneling under rear axle steering. 2. Remove heat shield. 3. Remove large clamps from left bellows. 4. Open small clamps on left using a suitable tool and slide to side. 5. Slide bellows to side. 6. A second…
• 11018031May 5, 2025Electrical system. Complaint Individual functions such as sliding sunroof or roller sunblind can no longer be operated using the gesture recognition system. Cause Gesture recognition system control unit software N168 Remedy For vehicles before modification year 23/2: Perform SCN coding in control unit OMSH223 (N168). For vehicles as of modification year 23/2: Considered to be a series production configuration. A change will not be…
• 11018213May 2, 2025Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the coding for the electronic ignition lock control unit does not correspond to the latest series production configuration. The electronic ignition lock control unit will be updated to change the logic for locking and unlocking the vehicle via the door handles. To unlock the vehicle, the large outer…
• 11018206May 2, 2025Electrical system. Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt battery. The XENTRY battery test may not take into account a single discharge event because the SAM or EZS cannot record the data if the battery is discharged. Note: A discharged…
• 11018204May 2, 2025Forward collision avoidance, Steering, Lane departure. Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness.
• 11017493Apr 29, 2025Engine. 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 expansion valve component part Y140/1 Remedy Check the part number of Y140/1. If the vehicle has A 297 830 79 03 or older…
• 11017500Apr 28, 2025Exterior lighting. Complaint Headlamps leaking or fogged Cause The fogging of the headlamp is a natural phenomenon which can occur under certain climatic conditions. In contrast to a leaky headlamp, physical fogging does not result in a technical impairment of the headlamp. A leak test must be performed to determine if physical fogging exists or if the headlamp is leaky. Remedy Check for external damage: You can identify a damaged…
• 11017496Apr 28, 2025Exterior lighting. Complaint Headlamp, front fog lamp leaky or fogged Cause Fogging of the headlamps is a natural phenomenon, which can occur under certain climatic conditions. It does not lead to any technical impairment of the headlamp. Remedy NOTE: If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps and LED rear…
• 11017218Apr 25, 2025Air bags, Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the airbag control unit software does not correspond to the latest series production configuration. The airbag control unit will be updated to improve the vehicle charging functionality during future OTA updates. MBUSA will conduct an OTA service campaign.
• 11017217Apr 21, 2025Visibility (wipers, defrost, mirrors). Complaint Random heating of air conditioning system. Cause Temperature sensor in overhead control panel (OCP) delivering incorrect values: The temperature sensor in the overhead control panel is malfunctioning. Fault code B110709 or fault code B11F697 are present in the overhead control panel with the status (active) or (active stored).
• 11017131Apr 21, 2025Electrical system, Seats. Complaint When opening the driver's door to aid exiting (easy entry and exit feature), only the seat adjusts. The steering wheel does not move with this function. Cause Software in the driver's seat control unit. Remedy Update software in the driver's seat control unit. Do not replace any component parts!
• 11017127Apr 21, 2025Seats, Electrical system. Complaint The "Easy entry and exit feature" function deactivates itself after a brief period. Cause The cause is currently being investigated. Remedy A remedy is currently not available. A software update in the seat control unit does not solve the problem. The document will be updated once the reason has been analyzed and a remedy is available.
• 11017516Apr 11, 2025Electrical system, Steering. Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness. Remedy Test Procedure: Perform an initial quick test with freeze frame data.
• 11017037Apr 7, 2025Electrical system. Complaint Traffic sign symbol for "Traffic Sign Assist" is blinking in instrument cluster without obvious cause usually with one of the following scenarios: • Flashing without a speed limit ("- -"). • Flashing when current vehicle speed is under speed limit. • Flashing between US speed limit symbol and European speed limit symbol. Cause Under Investigation Remedy Under investigation. One option is to turn off…
• 11017024Apr 7, 2025Electrical system. Complaint The last settings for the Augmented Reality Head-up Display (AR HUD) may not always be saved and the settings are reset to the default state. Cause Instrument Cluster control unit (N133/1) software Remedy Update the Instrument Cluster control unit (N133/1) software.
• 11017079Apr 4, 2025Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the software for various eDrive components does not correspond with the latest series production configuration. The subject vehicles will receive an update to optimize communication between the vehicles public charging stations and improve the use of Plug & Charge. MBUSA will conduct an OTA service campaign.
• 11017026Apr 4, 2025Back-over prevention (rear camera). Complaint Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible warning that was presented. • Exact location of event. • Is the concern repeatable in the same location? Remedy If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant as…
• 11016226Mar 31, 2025Electrical system, Visibility (wipers, defrost, mirrors). Complaint The last settings for the Augmented Reality Head-up Display (AR HUD) may not always be saved and the settings are reset to the default state. Cause Instrument Cluster control unit (N133/1) software Remedy Update the Instrument Cluster control unit (N133/1) software.
• 11016038Mar 21, 2025Electrical system. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the software for the airbag control unit does not correspond to the latest series production configuration. The airbag control unit will be updated to improve the vehicle charging functionality during future OTA updates. MBUSA will conduct an OTA service campaign.
• 11015615Mar 12, 2025Electrical system, Back-over prevention (rear camera). Complaint Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible warning that was presented. • Exact location of event. • Is the concern repeatable in the same location? Remedy If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant as…
• 11015571Mar 11, 2025Electrical system, Exterior lighting. Complaint If a door is opened, the color of the footwell lamp under the front seats on one of the two sides does not change to white. It may therefore be the case that the rear left footwell lamp is illuminated in white and the rear right footwell lamp is illuminated in blue, as shown in the example picture in the attachment. The right thing would be for the color of the above-mentioned footwell lamp to change to…
• 11015627Mar 10, 2025Electrical system, Exterior lighting. Complaint The luggage compartment lighting switches off and back on erratically if the tailgate is opened with the ignition switched off. Cause The problem was caused by a software error in the control unit N10/8 (Rear SAM). Remedy Software update to the control unit N10/8 (Rear SAM - Signal acquisition and actuation module rear control unit).
• 11015617Mar 10, 2025Electrical system, Body and structure. Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. E.g. when stored in trouser pocket, handbag etc. Remedy As of the 6th generation, the vehicle key can be recoded so that the tailgate no longer opens as a result of a long press on the button, but by double-clicking on the button instead. This reduces the likelihood of the button…
• 11015614Mar 10, 2025Suspension. Complaint A squeaking noise comes from the electric power steering; see video with example. Cause Toothed rack in the area of the screw drive of the electric power steering needs additional grease. Remedy 1. Lift the vehicle and remove the center engine compartment lining; for basic data, see WIS AR61.20-P-1105S 2. Loosen the bellows of the electric power steering on the right of the steering gear and slide outward…
• 11015640Mar 5, 2025Electrical system. Complaint During a phone call, the called party has difficulty understanding/cannot understand the driver, or interference/background noises are audible to the called party during a call. It becomes increasingly difficult to understand as the speed rises. Cause A. Seating of the microphones in the headliner. Side edges are covered by the textile cover (see picture "1") B. Assembly of microphones (B25/20 or B25/21)…
• 11014609Feb 27, 2025Other or unknown. Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2022-2024 EQE and EQS (294, 295, 296, and 297 platforms) vehicles, the Vehicle Emissions Control Information (VECI) label in the engine compartment may not be readily visible to a customer, since the Operator’s Manual directs that only workshop personnel are permitted to open the hood. MBUSA will conduct an Emission…
• 11014398Feb 20, 2025Other or unknown. Complaint The intent of this document is to provide workshops with helpful technical reference language. • Commonly used acronyms in LI's and TIPS cases. • Control unit names, numbers, and how to identify. • Network/wiring architecture groups to baumuster quick reference. • Platform to baumuster quick reference.
• 11015049Feb 7, 2025Other or unknown. A Mercedes-Benz approved DC fast charging adapter is recommended to access the Tesla Supercharger Network and can be purchased at an authorized Mercedes-Benz Dealer. During your visit, an authorized Mercedes-Benz dealer will install a NACS adapter information label on your vehicles charging flap, free of charge.
• 11015036Feb 5, 2025Other or unknown. Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY22-25 EQB, EQE, EQS, G-Class (243, 294, 295, 296, 297, 465 platform) vehicles, a new NACS adapter informational label is required for the use of an approved Mercedes-Benz DC Fast Charging Adapter.
• 11013996Feb 3, 2025Electrical system, Forward collision avoidance, Lane departure. Complaint Hand detection system not operating correctly / vehicles with code 266 Fault message in instrument cluster: "Active Emergency Stop Assist not available" "Active Lane Keeping Assist not available" Cause Possible causes: the hand detection mat, the hand detection control unit, the contacts and the steering wheel harness. Remedy Test Procedure: Perform an initial quick test with freeze frame data.
• 11013344Jan 31, 2025Back-over prevention (rear camera), Electrical system. Complaint Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible warning that was presented. • Exact location of event. • Is the concern repeatable in the same location? Remedy If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant as…
• 11013306Jan 30, 2025Electrical system, Back-over prevention (rear camera). Complaint Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible warning that was presented. • Exact location of event. • Is the concern repeatable in the same location? Remedy If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant as…
• 11013193Jan 28, 2025Back-over prevention (rear camera). Complaint Rear cross traffic activation without obvious cause. Cause Verify customer concern with the assistance of the Operator's Manual: • Symbol displayed on headunit. • Audible warning that was presented. • Exact location of event. • Is the concern repeatable in the same location? Remedy If concern was verified and is repeatable in one location, please update both rear radar brackets to the newest variant as…
• 11013183Jan 28, 2025Suspension. Complaint Creaking noise, in irregular sequence when driving slowly in combination with slight steering movements. Sound file attached for comparison. NOTE: Steering functionality is not affected. For 192 and 232: Only affects vehicles in the below FIN range. FIN range up to: Model series 192: xxx xxx xx 002 876 Model series 232: xxx xxx xx 022 312 Cause Contact area between wheel bearing and steering knuckle.
• 11013186Jan 24, 2025Exterior lighting. Complaint - Digital light pop-up messages (warnings, notes, spotlight and dyn. low beam) appear in the instrument cluster (picture in attachment), even though the same digital light settings are stored in all MBUX profiles Note: The pop-up messages are intended to indicate different settings when changing MBUX profiles Cause - ECU software Remedy - Reset MBUX to manufacturer default settings. Software update…
• 11013180Jan 24, 2025Electrical system. Complaint Plug and Charge function(P&C) does not work at specific charging stations. • Customer cannot start a charging process via P&C. • Customer can only charge with a charging card, via remote start at the head unit or using the Mercedes Me app Cause Software in N116/5 (DCCU) control unit. Remedy Update the software of the N116/5 (DCCU) control unit.
• 11013298Jan 16, 2025Transmission and drivetrain. Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The clunk is heard once when changing from forward to reverse (and vice versa). Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to micromovement in the connection between the wheel bearing inner race and the joint housing of the…
• 11013332Jan 15, 2025Transmission and drivetrain. Complaint Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause If the complaint is eliminated by experimentally loosening the outboard collar nut (by 1 turn), the problem is due to cracking of the microweld between the wheel bearing inner race and the…

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