Model year guide

2014 Mercedes-benz B-Class

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2014 Mercedes-benz B-Class is worth — from official NHTSA and EPA data. 17 on record.

2014 Mercedes-benz B-Class — representative photo
Representative photo

2014 Mercedes-benz B-Class at a glance

Safety recalls2
Combined84 MPGe

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2014 Mercedes-benz B-Class recalls 2

Communication NHTSA Campaign #19V787000 · manufacturer #2019120008 · NHTSA lists this under B-class Electric · 01/11/2019

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf

Fix: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-…

Electrical System:propulsion System:traction Battery NHTSA Campaign #15V655000 · manufacturer #2015100005 · NHTSA lists this under B-class Electric · 14/10/2015

Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2014-2015 B-Class Electric Drive vehicles manufactured November 21, 2013, to May 26, 2015. Due to a communication error within the electric drive system, the electric powertrain unit may shut down, temporarily immobilizing the vehicle and resulting in a loss of propulsion power.

Fix: MBUSA will notify owners, and dealers will update the electric drive system software, free of charge. The recall began on December 2, 2015. Owners may contact MBUSA customer service at 1-800-367-6372.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2014 Mercedes-benz B-Class efficiency & running costs

Combined84 MPGe
City85 MPGe
Highway83 MPGe
Est. annual energy cost$900
EPA size classMidsize Cars
TransmissionAutomatic (A1)
Electric range87 mi
Charge time (240V)3.5 hours
Passenger volume90 cu ft
Cargo volume22 cu ft
5-yr fuel cost vs average new car$7,500 less

Source: U.S. EPA / DOE fueleconomy.gov.

Estimated 5-year cost to own

A rough guide to what running a 2014 Mercedes-benz B-Class costs over five years and 75,000 miles.

Energy (5 yrs)$4,500
Energy only$4,500
Per mile$0.06

How this is estimated: energy is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Investigations & service bulletins

NHTSA defect investigations 2

Pedestrian alert sounds Closed

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that…

NHTSA #DP22005 · Electrical System · opened Jan 2023 · closed Aug 2023

Desiccated Air Bag Inflator Rupture Open

From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deploymen…

NHTSA #EA21002 · Air Bags · opened Sep 2021

An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.

Manufacturer service bulletins 56

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 56.

Complaint Repeat workshop visit for vehicle vibration while braking from 60MPH. NOTE: Although the symptom is similar to a tire or wheel vibration, it is usually readily noticeable that it is distinctly different if it happens at all times or only while brakin…

Bulletin LI42.10-P-078779 · Service Brakes · Sep 2026

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 workin…

Bulletin LI82.62-P-078631 · Structure · Sep 2026

Complaint A popup is seen on the HU with the message "data connection temporarily not available". Potentially affected functionalities in NTG4.5, NTG5 1.Weather 2.Local Search 3.IP Radio 4.Send2Car 5.Speech Detection Service 6.Navigation 7.iHeartRadio 8.Traffi…

Bulletin LI82.85-P-079087 · Electrical System · Aug 2026

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 workin…

Bulletin LI82.62-P-078631 · Structure · Aug 2026

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 experi…

Bulletin LI35.30-P-058566 · Power Train · Jul 2026

Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline for all dealer returns is no later than Thursday, July 9, 2026. After July 9th, r…

Bulletin PSL-NCU Return Parts 6/19 · Engine, Visibility/wiper · Jun 2026

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/…

Bulletin LI82.85-P-080507 · Electrical System · May 2026

Complaint The customer requests deactivation of the N112/9 HERMES communication module Note: Deactivation of the HERMES control unit (N112/9) is not supported for gray-market vehicles. Cause Before deactivating the HERMES control unit (N112/9), it must be clar…

Bulletin LI82.85-P-080559 · Electrical System · May 2026

Complaint There are several types of complaint about noises or poor windshield wiper wiping performance: A: Wiper blades squeaking, chattering, shuddering B: The windshield is not wiped completely (streaking) C: During the downward movement water is pulled bac…

Bulletin LI82.30-P-059239 · Visibility/wiper · May 2026

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…

Bulletin LI82.10-P-078301 · Exterior Lighting · Apr 2026

Source: NHTSA Office of Defects Investigation, listed for the B-CLASS E-CELL FWD. Model-year data, not specific to one car.

2014 Mercedes-benz B-Class vehicles on record

Other Mercedes-benz B-Class model years

2014 Mercedes-benz B-Class — frequently asked questions

Does the 2014 Mercedes-benz B-Class have any safety recalls?

NHTSA lists 2 recall campaigns for the 2014 Mercedes-benz B-Class. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What gas mileage does the 2014 Mercedes-benz B-Class get?

The 2014 Mercedes-benz B-Class has a U.S. EPA estimate of 84 MPGe combined (85 city / 83 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.