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2018 BMW 4 Series Overview, Reviews, Ratings & Specs

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Simon A | March 31, 2025

The 2018 BMW 4 Series is a luxury compact car that blends sporty handling with upscale features. It was part of the first generation of the 4 Series, spun off from the 3 Series coupe and convertible lines. Available body styles included a coupe, a Gran Coupe (a four-door sedan with a coupe-like roofline), and a convertible. Key trims ranged from the 430i to the more powerful 440i, with optional xDrive all-wheel drive. Prices ranged roughly from $44,000 to $58,000 when new. It stands out for its driving dynamics, stylish design, and premium interior.

The Good

The 2018 BMW 4 Series offers a compelling blend of advantages. Performance is strong, especially with the 440i's engine. Its design is sleek and sporty, appealing to emotional buyers. Practical benefits include a comfortable interior, reasonable fuel efficiency, and decent reliability for a luxury car. The availability of xDrive enhances all-weather capability.

The Bad

Potential weaknesses of the 2018 BMW 4 Series include higher maintenance costs compared to non-luxury brands. Some owners have reported issues with the electronics and infotainment system. The rear seats in the coupe and Gran Coupe can be cramped for adults. Also, repair costs can be expensive.

2018 BMW 4 Series: Quick Overview

  • Engine Options:
    • 430i: 2.0-liter turbocharged inline-4
    • 440i: 3.0-liter turbocharged inline-6
  • Horsepower:
    • 430i: 248 hp
    • 440i: 320 hp
  • Fuel Economy (EPA Estimated):
    • 430i: Around 24 mpg city / 34 mpg highway (RWD)
    • 440i: Around 21 mpg city / 32 mpg highway (RWD)
  • 0-60 Times:
    • 430i: Approximately 5.5 - 5.7 seconds
    • 440i: Approximately 4.8 - 5.0 seconds
  • Towing Capacity: Not recommended or rated for towing.
  • Trim-Level Features:
    • 430i: SensaTec upholstery, power front seats, dual-zone automatic climate control, rearview camera, iDrive infotainment system with a 6.5-inch display, Bluetooth, USB port, and nine-speaker audio system.
    • 440i: Includes 430i features plus leather upholstery, Harman Kardon surround-sound system, keyless entry, and adaptive headlights.
    • Optional Features: Navigation system, Apple CarPlay, heated seats, head-up display, lane departure warning, blind spot monitoring, parking sensors, and adaptive cruise control. M Sport package available with sport suspension, aerodynamic kit, and sport seats.

2018 BMW 4 Series Specifications

Vehicle Information
Year 2018
Make BMW
Model 4-Series
Trim -
Style Coupe
Type Coupe
Category Compact Car
Manufacturing Details
Made In Germany
Manufacturing City REGENSBURG
Dimensions
Doors 4-Door
Curb Weight 1696.43 kg
Gross Vehicle Weight Rating 14968.99 kg
Overall Height 138.68 cm
Overall Length 463.55 cm
Overall Width 182.37 cm
Wheelbase Length 280.92 cm
Standard Seating 5
Engine & Performance
Engine 2.0-L I4
Engine Size 2L
Engine Cylinders 4
Transmission 8-Speed Automatic
Transmission Type Automatic
Transmission Speeds 8-Speed
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $43,500 USD
Invoice Price $40,955 USD
Delivery Charges $995 USD

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What Problems Does the 2018 BMW 4 Series Have?

Frequently reported problems for the 2018 BMW 4 Series include issues with the iDrive infotainment system, such as glitches, freezing, and connectivity problems. Some owners have reported oil leaks, particularly in the 430i models. There have also been reports of issues with the electric power steering system. It's important to check for any recalls related to the vehicle's VIN. BMWs, in general, can have long-term reliability concerns related to their complex electronics and sophisticated engine components, leading to potentially higher repair costs as the vehicle ages. Specifically, keep an eye on the cooling system (water pump, thermostat), as these can be prone to failure in BMWs. Additionally, examine the condition of the suspension components and look for any signs of wear or damage. Also, check the service history to ensure proper maintenance, including regular oil changes, has been performed.

How long will the 2018 BMW 4 Series last?

With proper maintenance, a 2018 BMW 4 Series can reasonably be expected to reach 150,000 to 200,000 miles or 10-15 years of service. However, this depends heavily on maintenance habits. Regular oil changes, timely servicing of cooling and braking systems, and addressing issues promptly are crucial. Long-term durability weaknesses often revolve around the car's electronics, potential for oil leaks, and wear and tear on suspension components. Ignoring maintenance or delaying repairs can significantly shorten the vehicle's lifespan.

What Technology & Safety Features are Included?

The 2018 BMW 4 Series comes standard with the iDrive infotainment system featuring a 6.5-inch display, Bluetooth, a USB port, and a nine-speaker audio system. Optional upgrades include a larger 8.8-inch display, navigation, Apple CarPlay, and a Harman Kardon surround-sound system.
Standard driver-assistance features include a rearview camera. Available optional features include lane departure warning, blind spot monitoring, forward collision warning with automatic emergency braking, parking sensors, and adaptive cruise control.
Safety features include multiple airbags, stability control, and traction control. The IIHS (Insurance Institute for Highway Safety) gave the 2018 BMW 4 Series Coupe a "Good" rating in several crash tests. The NHTSA (National Highway Traffic Safety Administration) gave the 2018 BMW 4 Series an overall safety rating of 5 stars.

What Colors Options are Available?

Exterior Colors
Alpine White
Black Sapphire Metallic
Glacier Silver Metallic
Mineral Grey Metallic
Sunset Orange Metallic
Melbourne Red Metallic
Snapper Rocks Blue Metallic
Interior Colors
Cognac Dakota Leather
Black Dakota Leather
Coral Red Dakota Leather
Oyster Dakota Leather
Saddle Brown Dakota Leather
Black SensaTec Leatherette

2018 BMW 4 Series Prices and Market Value

When new, the 2018 BMW 4 Series ranged from approximately $44,000 to $58,000, depending on the trim and options. As of late 2023/early 2024, used market prices generally range from $20,000 to $35,000, depending on mileage, condition, and trim. Depreciation is significant, as is typical for luxury vehicles. Factors affecting resale value include mileage, condition, service history, trim level (440i models hold value better), and the presence of desirable options. Models with clean titles and documented maintenance records command higher prices.

2018 BMW 4 Series Cost of Ownership

The 2018 BMW 4 Series is relatively costly to own long-term. Insurance premiums are higher than average due to its luxury status and performance capabilities. Fuel costs are moderate, but premium fuel is recommended. Maintenance and repair costs can be substantial, particularly for unexpected issues. Routine maintenance is also more expensive compared to non-luxury vehicles. Budgeting for potential repairs and using a reputable mechanic specializing in BMWs is advisable to minimize long-term expenses.

2018 BMW 4 Series Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 33.33 liters
City Mileage 4.34 km/l
Highway Mileage 3.02 km/l

2018 BMW 4 Series Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Overall Side Star Rating Not Tested
Side Barrier Star Ratings Not Tested
Side Pole Star Rating Not Tested
Combined Side Barrier And Side Pole Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2018 BMW 4 Series Recalls & Defects

Seat Belts:front
Recall date 2017-08-16
Recall no. 17v507000
Source NHTSA
Summary 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.
Consequence 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.
Remedy 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.
Notes Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.

2018 BMW 4 Series Warranty

Rust
Original warranty 144 months / unlimited miles
Estimated remaining 60 months / unlimited miles
Roadside
Original warranty 48 months / unlimited miles
Estimated remaining Expired
Drivetrain
Original warranty 48 months / 50000 miles
Estimated remaining Expired
Basic
Original warranty 48 months / 50000 miles
Estimated remaining Expired
Free Maintenance
Original warranty 36 months / 36000 miles
Estimated remaining Expired

2018 BMW 4 Series Insurance

Insurance for a 2018 BMW 4 Series is moderately priced, reflecting its status as a Coupe with strong safety ratings and
reasonable repair costs.

How Does the 2018 BMW 4 Series Compare to Other Coupe?

Key rivals to the 2018 BMW 4 Series include the Audi A5, Mercedes-Benz C-Class Coupe, and Lexus RC. In terms of performance, the 4 Series generally offers a sharper driving experience than the Lexus RC but is comparable to the Audi A5 and Mercedes-Benz C-Class Coupe. Features are competitive across the board, but BMW's iDrive system can be polarizing. Reliability is a potential weak point compared to Lexus, as BMWs tend to have higher maintenance costs. Price-wise, the 4 Series is similarly positioned to its German rivals.
Alternatives to consider include the Infiniti Q60, which offers a compelling blend of style and performance at a slightly lower price point. The Acura TLX (though technically a sedan) can offer a similar level of luxury and performance with better reliability ratings. If reliability is a top priority, the Lexus RC is a strong contender despite its less engaging driving dynamics.

Ranks #101 Coupe

1 2023 Toyota GR Supra (0.0★)
2 2023 Lexus RC F (0.0★)
3 2011 Honda CR-Z (5.0★)
4 2023 Subaru BRZ (5.0★)
5 2011 Mazda RX-8 (4.0★)
6 2024 BMW 4 Series (0.0★)
7 2022 Mercedes-Benz C-Class (4.0★)
8 2014 Ford Mustang (5.0★)
9 2023 Audi A5 Cabriolet (0.0★)
10 2023 Nissan GT-R (0.0★)
11 2015 Hyundai Veloster (0.0★)
12 2008 Chevrolet Corvette (5.0★)
101 2018 BMW 4 Series (0.0★)

Final Verdict: Is the 2018 BMW 4 Series a Good Coupe?

The 2018 BMW 4 Series is ideal for driving enthusiasts who value sporty handling, stylish design, and a premium interior. It's worth buying if you appreciate the driving experience and are prepared for potentially higher maintenance costs. Buying used offers significant savings, but a thorough inspection and service history review are crucial. The 440i models provide a more powerful engine and are often preferred. Consider a certified pre-owned (CPO) vehicle for added peace of mind. If reliability is your primary concern, explore alternatives like the Lexus RC.

2018 BMW 4 Series Owner Reviews

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Simon A

Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.