EQB 300 4matic

72 service bulletins filed with NHTSA for this model year

• May 26, 2026ELECTRICAL SYSTEMLI82.85-P-080507

  Complaint After successful commissioning of the HERMES control unit (N112/9) with XENTRY Diagnosis DVD 03/2026, the message "SOS - service not activated" appears on the instrument cluster. In addition, the following two conditions are also met: • HERMES (N112/9) control unit: event code B15CE00 is ACTIVE and STORED (A+S) • Vehicle Documentation System: For the HERMES control unit, the EID1, EID2, ICCID, IMEI, IMSI, TELNR fields in the "Identification/Serial number" column have the value "-" Caus

• May 22, 2026STEERINGLI46.15-P-070510

  Complaint Noises from the area of the steering column. - Creaking - Squeaking - Chattering - Humming - Grinding Cause At present, there are no known noise problems with the steering column. Remedy Check surrounding area of the steering column for possible noises. • Instrument panel support • Steering column switch module NOTE: Occasionally to verify complaint, the steering column/vehicle needs to be in direct sunlight or hot conditions for a few hours. If noise only occurs when adjusting the ste

• May 16, 2026SUSPENSIONLI32.25-P-070053

  Complaint There may be creaking noises when steering while stationary or driving slowly. See Example Noise attachment Cause The vehicle level of the front axle may be too low. The noises when steering can be caused by continuous contact of the end stop buffer with the damper tube. Remedy IMPORTANT: Do not apply document to vehicles outside of the listed validity range. The vehicle level must first be measured using the romess inclinometer (follow WIS instructions!) and the measured values should

• May 12, 2026BACK OVER PREVENTION: WARNINGSLI54.65-P-080132

  Complaint 1. General Diagnostic Tips 2. One or More PARK Sensor Activations 3. Red Ring Around Vehicle 4. "Active Parking and Parking Assist Inoperative" on Instrument Cluster 5. Cameras 6. Other Park Topics Cause Various root causes Remedy See attached diagnostic guide.

• May 5, 2026VISIBILITY/WIPERLI83.20-P-076623

  Complaint • Insufficient heating output in vehicle interior • Customer describes a one-off, loud "plopping" noise during the journey Workshop findings: • Refrigerant line between refrigerant compressor and condenser is cracked • If listed line is cracked, please conduct the following tests 1. Are the fault codes B19A200 or P053400 current or stored in air conditioner control unit N10*1? 2. Check dryer cartridge at condenser for particles: Remove dryer cartridge, illuminate inlet of dryer cartrid

• Apr 16, 2026EXTERIOR LIGHTINGLI82.10-P-078301

  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. If a pressure compensation diaphragm is fitted in the housing cover, then the lamp unit is a "closed system". Remedy Headlamp: Remedy 1 Clearing fogged/condensed LED headlamps: 1. Drive vehicle into workshop (temperature higher than +18 °C/+64.4 °F) and connect the exhaust extra

• Apr 2, 2026ELECTRICAL SYSTEMLI72.20-P-075746

  Complaint Tailgate opens unintentionally. Cause Accidental or unnoticed activation of the button to open the tailgate on the vehicle key. EXAMPLE: 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 being activated accidentally or unintentionally. The recoding can be carried

• Mar 14, 2026ELECTRICAL SYSTEMNCU - 2025120002

  Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the software for the DC charge-connection unit (DCCU) control unit does not correspond to current production specifications. MBUSA will conduct a service campaign. An authorized Mercedes-Benz dealer will update software of DCCU control unit. This software update will enable compatibility with Plug & Charge functionality on the Tesla Supercharger network.

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Source: NHTSA manufacturer communications (technical service bulletins).