Is the 2018 Bmw M4 reliable?

The 2018 Bmw M4 has 5 complaints filed with NHTSA (0.3x the segment average). Our reliability verdict: excellent. Most common issue: FUEL SYSTEM problems.

What are common problems with the 2018 Bmw M4?

Top problems: FUEL SYSTEM (4 complaints, avg repair $500); ENGINE (1 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2018 Bmw M4?

Yes, there are 1 recall(s): SEAT BELTS:FRONT. Contact any Bmw dealer to verify if recalls have been completed on your specific vehicle.

How much does it cost to fuel a 2018 Bmw M4?

The 2018 Bmw M4 gets 20 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2400. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2018 Bmw M4?

Estimated US average full-coverage insurance for the 2018 Bmw M4 is approximately $2,143/year (sedan-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2018 Bmw M4

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2018 Bmw M4 has 5 owner complaints filed with NHTSA — that's 0.3x the segment average of 17. The most common issue is fuel system problems (80% of all complaints), specifically: i think the fuel tank has cracked on the upper portion of the tank. i noticed a smell of gas on my way home from filling gas and when i got home i realized there was a puddle of gas sitting underneath my car. i jacked up the car and inspected the underneath and saw nothing, i noticed the gas was lea. There is 1 recall issued for this model year.

Total Complaints

Recalls Issued

—/5

Safety Stars

0.3x

vs Segment Avg

Known Problems(top 2 of 2)

FUEL SYSTEM

4 complaints

80%

• I think the fuel tank has cracked on the upper portion of the tank. I noticed a smell of gas on my way home from filling gas and when I got home I realized there was a puddle of gas sitting underneath my car. I jacked up the car and inspected the underneath and saw nothing, I noticed the gas was lea
• Fuel tank was leaking. I brought it in to BMW of San Antonio who found the left side top area of fuel tank leaking fuel from the sealed portion. Heat caused the top of fuel tank to expand and crack. BMW of SA required me to buy a replacement fuel tank. When I said, if I buy the replacement fuel tank
• What component or system failed or malfunctioned, and is it available for inspection upon request? Fuel Tank on my BMW under 50k miles started leaking after a fill up. How was your safety or the safety of others put at risk? I didn't notice any leaks at the gas station but once I got home, pulled

Typical onset: 50K miles Est. repair: $500

“I think the fuel tank has cracked on the upper portion of the tank. I noticed a smell of gas on my way home from filling gas and when I got home I realized there was a puddle of gas sitting underneath my car. I jacked up the car and inspected the underneath and saw nothing, I noticed the gas was lea”

— NHTSA complaint filing

Recalls (1)

SEAT BELTS:FRONT16/08/2017

BMW of North America, LLC (BMW) is recalling certain 2018 430i, 430i xDrive, 440i, 440i xDrive, and M4 convertible vehicles. The Emergency Locking Retractors (ELR) within the front seat belt assemblies may have been produced with incompatible vehicle-sensitive locking mechanism housings.

Risk: If the vehicle has an incompatible vehicle-sensitive locking mechanism, the seat belt may not restrain the seat occupant in the event of a crash, increasing the risk of injury.

Fix: BMW will notify owners, and dealers will inspect and, if necessary replace, the front seat belt assemblies, free of charge. The recall began October 13, 2017. Owners may contact BMW customer service at 1-800-525-7417.

Fuel Cost Calculator for 2018 Bmw M4

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,401

Per month

$200

Per mile

20.0¢

MPG

City driving (worst-case MPG)

$3,001/yr

Highway driving (best-case MPG)

$1,920/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2018 Bmw M4

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$2,143

Full coverage / month

$179

Liability only / year

$710

vs US avg

+28%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-luxury)1.28x

× theft risk1.00x

× safety rating1.00x

× vehicle age1.00x

= Full coverage estimate$2143

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Bmw M4 Service Intervals

Oil change

10K mi / 12 mo

Tire rotation

10K mi

Brake fluid

24 months

Transmission fluid

60K mi

Engine coolant

100K mi

Spark plugs

60K mi

Cabin air filter

15K mi

Engine air filter

30K mi

Differential (AWD/4WD)

60K mi

Condition-Based Service (CBS) tells you exactly when service is due. Transmission fluid was labeled 'lifetime' but many owners service at 60K-100K.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Bmw New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 50K mi

Powertrain

4 yr / 50K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

12 yr / unlimited mi

Roadside assistance

4 yr / unlimited mi

Corrosion is unlimited miles for 12 years

These are the terms for a new Bmw. If you're buying a used 2018 M4, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Bmw dealer for VIN-specific remaining warranty.

Estimated Repair Costs

FUEL SYSTEM(~50K mi)

$500

ENGINE(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 5 owner complaints for this specific year, here's what to check or ask about:

☐
FUEL SYSTEM: I think the fuel tank has cracked on the upper portion of the tank. I noticed a smell of gas on my way home from filling gas and when I got home I realized there was a puddle of gas sitting underneath my car. I jacked up the car and inspected the underneath and saw nothing, I noticed the gas was lea
Typically appears around 50K miles. Repair cost ~$500
☐
ENGINE:
Typically appears around 50K miles. Repair cost ~$500
☐
RECALLS: Verify all 1 recall have been completed — free at any Bmw dealer
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Bmw M4 — Year Comparison

How does 2018 compare to other years? Fewer complaints = more reliable.

2018

5Excellent Reliability

Full years-to-avoid analysis →

NHTSA Safety Rating

No NHTSA safety rating available

At a Glance

Complaints: 5
Recalls: 1
Fire reports: 0
Crash reports: 0
Injury reports: 0
Segment avg: 17

Check a Specific VIN

See recalls for YOUR 2018 Bmw M4

Compare With

2018 Ford C-MAX12 complaints 2018 Ford E-3505 complaints 2018 Ford E-4505 complaints 2018 Ford ECOSPORT961 complaints