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Fuel systemPart report

2023 Mercedes-Benz EQB 300 4MATIC Fuel system Problems

Complaints
9about this part
Share
17%of 54 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 9 complaints about the fuel system of the 2023 Mercedes-Benz EQB 300 4MATIC, 17% of the 54 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 2023 Mercedes-Benz EQB is included in the high-voltage battery fire recall (NHTSA campaign 26V073). The recall states the battery cells may fail internally at a high state of charge, causing an internal short circuit and a potential fire whether the vehicle is parked or being driven, with no advance warning while parked. As interim safety measures, Mercedes-Benz instructed me to limit charging to 80% and to park the vehicle outdoors, away from structures. …”

NHTSA complaint #11744240, filed 2026-06

“There is a recall associated with this model that causes catastrophic stoppage without any ability to drive. My vehicle VIN does not have a recall according to your site. Despite this, my vehicle catastrophically stopped multiple times. It was repaired at least three times and still stopped in the middle of the highway. My partner and I were stopped on I-85S with no ability to move, honk, put on hazards. Cars zoomed past at full speed. I called 911 as we braced for impact. We are lucky to be alive and now suffer from severe trauma. …”

NHTSA complaint #11751342, filed 2026-07

“In December 2024, I brought my 2023 Mercedes-Benz EQB to Mercedes-Benz Beverly Hills for scheduled service. They told me the vehicle had a recall and booked me for a future appointment, but I was unable to attend because I was out of town. I called the dealer multiple times afterwards to reschedule, but they never told me the reason for the recall or explained the safety risk. I recently checked my VIN myself and discovered that the recall is related to a high-voltage battery defect that may cause sudden loss of power and battery fire. …”

NHTSA complaint #11697675, filed 2025-11

“The car is subject to a NHTSA recall 26V073. Mercedes has scheduled warranty repair for December 31, 2026, or more than 9 months from now. Our dealer advises that the scheduled date is just a holding date; there is no assurance that the repair will occur on or before that date. Mercedes has also said in writing that the battery replacement remedy is not yet available and that we should complain to NHTSA if Mercedes does not fix this problem in a reasonable time. In the meantime, we are instructed to park the car outside and not to charge it more than 80%. …”

NHTSA complaint #11725380, filed 2026-03

“MB recall is since Feb 2026 and they neither ready to fix it not ready to provide a proper compensation . The vehicle is currently unusable for the following reasons: 1. Safety Catch-22 (Fire vs. Theft): Due to the fire hazard associated with the current battery recall, I cannot safely charge or store the vehicle in my garage. However, the local Township Police have explicitly advised against keeping the car outside due to high theft risks in the area. Mercedes-Benz has essentially provided a vehicle that is neither safe to keep indoors nor secure to keep outdoors. 2. …”

NHTSA complaint #11741394, filed 2026-06

Fuel system: other model years

YearComplaintsShare of year
2024113%
2023917%
2022327%

Other parts of the 2023 Mercedes-Benz EQB 300 4MATIC

Electrical system
39 complaints
Other or unknown
9 complaints
Engine
6 complaints
Transmission and drivetrain
5 complaints
Forward collision avoidance
3 complaints
Brakes
2 complaints
Air bags
1 complaints
Back-over prevention (rear camera)
1 complaints
Lane departure
1 complaints
Seat belts
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints
Wheels
1 complaints

← All problems reported for the 2023 Mercedes-Benz EQB 300 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