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2015 BMW

M4 Convertible

Man 6-spd, 6 cyl, 3.0 L, Turbo

BMW M4: best and worst years
2015 BMW M4 Convertible

Closest available photo (2014 model year); you're viewing the 2015.

2014 photoStefan Brending (2eight)CC BY-SA 3.0 deWikimedia Commons

Overview

Body
Subcompact CarsEPA, from EPA, last updated 6/22/2026
Drivetrain
Rear-Wheel DriveEPA, from EPA, last updated 6/22/2026
Transmission
Manual 6-spdEPA, from EPA, last updated 6/22/2026
Powertrain
GasEPA, from EPA, last updated 6/22/2026
Fuel
PremiumEPA, from EPA, last updated 6/22/2026

Engine & performance

HP
425
Power to weight
0.120 hp/lb
Axle ratio
3.46
Cyl
6EPA, from EPA, last updated 6/22/2026
Aspiration
TurbochargedEPA, from EPA, last updated 6/22/2026
Start-stop system
YesEPA, from EPA, last updated 6/22/2026

Efficiency

MPG Hwy
26 mpgEPA, from EPA, last updated 6/22/2026
MPG City
17 mpgEPA, from EPA, last updated 6/22/2026
MPG Comb
20 mpgEPA, from EPA, last updated 6/22/2026
Fuel $/yr
$3,850EPA, from EPA, last updated 6/22/2026
CO₂
440 g/miEPA, from EPA, last updated 6/22/2026
Eco Score
5/10EPA, from EPA, last updated 6/22/2026
Smog score
5/10
Elec. Range
0 miEPA, from EPA, last updated 6/22/2026
SmartWay certified
No

Dimensions & capacity

Length
184 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Width
74 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Height
54 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Wheelbase
111 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Curb Weight
3,530 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026

Safety NHTSA, model year

Recalls
3
Owner complaints
12

Reported problems NHTSA owner complaints, model year

  • ENGINE29%
  • ELECTRICAL SYSTEM24%
  • POWER TRAIN24%
  • SERVICE BRAKES6%
  • STRUCTURE6%
  • UNKNOWN OR OTHER6%

Source: NHTSA owner complaints, 17 total.

BMW M4: best and worst years

Known issues manufacturer service bulletins, model year

160 service bulletins filed with NHTSA for this model year

  • Jan 11, 2024ELECTRICAL SYSTEMB611305

    The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints.

  • Jan 9, 2024SUSPENSIONB310124

    With the vehicle is on a lift and the front struts are in the extended position, there may be a cracking and orclicking type noise when turning the steering wheel left/right. See attached video V31 01 24. The sound can reoccur when the vehicle is lowered, and the wheels are once again under load. The noise might also be heard for a short time while driving.

  • Oct 13, 2023SERVICE BRAKES, HYDRAULICB340714

    Functional noises (squealing/honking) when braking shortly before the vehicle comes to a stop. CAUSE Material-

  • May 1, 2023ELECTRICAL SYSTEMB651523

    After programming the head unit (HU-H2), activating the FSC (German word Freischaltcode) Enabling Codes repeatedly fails.

  • May 1, 2023STRUCTURE:BODY:TAILGATEB514616

    Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.

  • Mar 1, 2023ELECTRICAL SYSTEMB840822

    The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the mobile communication network. Due to a production error, the telematics control units were delivered without an IMS configuration. The Connected Drive voice services (Concierge Call, BMW Assistance, and emergency call voice) can no longe

  • Mar 1, 2023EXTERIOR LIGHTINGB630917

    Exterior rear lights do not work.

  • Feb 1, 2023SERVICE BRAKESB340921

    A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operation when braking from low speed.

  • and 152 more

Source: NHTSA manufacturer communications (technical service bulletins).

Warranty manufacturer terms, by make

Basic
4 yr / 50k mi
Powertrain
4 yr / 50k mi
Roadside assistance
4 yr
Maintenance
3 yr / 36k mi
EV battery
8 yr / 100k mi

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.