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Fuel systemPart report

2023 Mercedes-Benz EQB 350 4MATIC Fuel system Problems

Complaints
6about this part
Share
60%of 10 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 6 complaints about the fuel system of the 2023 Mercedes-Benz EQB 350 4MATIC, 60% of the 10 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My vehicle battery overheated. The dealership was unable to identify the cause. I have since learned there is a battery recall on this make and model, and I believe the recall needs to be expanded to include my vehicle and the overheating was likely caused by the battery failing.”

NHTSA complaint #11767494, filed 2026-09

“This safety recall is over six months old and is still unresolved. I have not felt safe driving the vehicle on the highway because of the possibility of complete power loss. I have been forced to keep paying lease payments on a car I can't drive and the manufacturer has been unresponsive. When I plug the car in to charge, all the lights in the house dim. My other EV does not do this so it must be a serious problem with this vehicle.”

NHTSA complaint #11710665, filed 2026-01

“My 2022 Mercedes-Benz EQB has an unresolved recall (25V487000) issued July 25, 2025 — nearly 10 months ago — with status still listed as remedy not yet available. The recall is classified as URGENT: FIRE RISK WHEN PARKED on NHTSA's website for my specific vehicle. On May 6-7, 2026 I contacted Mercedes customer service three times and received conflicting safety guidance. Agent 1 told me charging above 80% was acceptable and did not advise outdoor parking. Agent 2 (appointed by a manager) told me to restrict charging and park outside immediately, and escalated to buyback team. …”

NHTSA complaint #11736400, filed 2026-05

“I am reporting a substantial safety defect regarding the high-voltage battery system in my 2023 Mercedes-Benz EQB 350. The vehicle suffers from a 50% loss of advertised range (real-world range of ~95 miles vs. 210 miles advertised) and severe DC fast-charging failures. My VIN is subject to NHTSA Recalls 25V050000 and 25V894 for high-voltage battery fire risk. Per the manufacturer's safety instructions, I have been told not to charge the vehicle above 80%, which further degrades the vehicle’s utility. Additionally, the vehicle is subject to Recall 25V487000 for sudden loss of drive power. …”

NHTSA complaint #11719844, filed 2026-02

“Vehicle: 2023 Mercedes-Benz EQB 350 4MATIC Recall Reference: NHTSA Campaign #26V073 / High-Voltage Battery Fire Hazard My vehicle is subject to an active safety recall concerning internal high-voltage battery failure that poses a direct risk of a vehicle fire while driving or parked. The manufacturer has instructed owners to limit battery charging to a maximum of 80% and to park the vehicle outside away from structures due to fire hazards. …”

NHTSA complaint #11773027, filed 2026-10

Fuel system: other model years

YearComplaintsShare of year
2023660%
2022218%

Other parts of the 2023 Mercedes-Benz EQB 350 4MATIC

Electrical system
8 complaints
Other or unknown
3 complaints
Engine
1 complaints
Body and structure
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2023 Mercedes-Benz EQB 350 4MATIC

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology