The BMW 4 Series Coupe (F32) is the epitome of a luxury sports coupe, blending elegant design, thrilling performance, and advanced technology. Produced between 2018 and 2020 as part of the first-generation 4 Series, this car became a favorite for enthusiasts and casual drivers alike. Despite its strong reputation, the F32 isn’t without its quirks and challenges. In this comprehensive guide, we’ll explore the common problems with the 2018-2020 BMW 4 Series Coupe, what to consider before buying one, and the costs associated with ownership.
1. Common Problems with the BMW 4 Series Coupe (F32, 2018-2020)
1.1 Engine and Performance Issues
The F32 comes with a range of turbocharged engines, including the inline-four (B48) and inline-six (B58) engines. While they’re celebrated for their performance and efficiency, some notable issues persist:
Timing Chain Stretch (B48/B58 Engines):
Over time, the timing chain may stretch or wear prematurely, especially in high-mileage models. Symptoms include rattling noises at startup and potential engine misfires.- Fix: Replacing the timing chain can cost upwards of $2,000-$3,500, depending on the extent of damage.
Oil Consumption Problems:
Some owners report excessive oil consumption, requiring frequent top-offs. This can stem from worn piston rings or valve stem seals, particularly in vehicles with aggressive driving habits.Cooling System Vulnerabilities:
The electric water pump and thermostat in the 4 Series are prone to failure, leading to overheating. This is a common issue across many modern BMWs and can result in costly engine repairs if not addressed.- Fix: Replacing the water pump and thermostat typically costs $1,200-$1,800.
1.2 Turbocharger-Related Issues
The turbochargers in the F32 provide excellent power, but they are not immune to problems:
- Wastegate Rattle: Over time, the wastegate actuator can develop play, causing a metallic rattling sound under acceleration or at idle.
- Boost Pressure Loss: Leaking turbo hoses or failing charge pipes can result in a loss of boost pressure, leading to reduced power and sluggish acceleration.
1.3 Transmission Problems
The F32 offers two transmission options: an 8-speed automatic (ZF8) and a 6-speed manual. Both are generally reliable but can exhibit issues:
- Automatic Transmission Hesitation: Some owners report delays in gear shifts or jerky downshifts, often linked to the transmission software or worn solenoids. Regular fluid changes can help prevent these problems.
- Manual Transmission Clutch Wear: On manual models, the clutch may wear out prematurely, particularly with aggressive driving. Symptoms include slipping under load and difficulty engaging gears.
1.4 Suspension and Steering Complaints
BMW’s focus on sporty handling is evident in the F32, but this comes with challenges:
- Control Arm Bushing Wear: The front control arm bushings can wear out, leading to clunking noises and imprecise steering.
- Adaptive Suspension Malfunctions: Models equipped with the Adaptive M Suspension may experience failure of the electronic dampers, resulting in a rough or uneven ride.
- Steering Rack Noise: Some owners report creaking or knocking noises from the steering rack, often requiring lubrication or replacement.
1.5 Electrical and Technology Issues
The F32 is equipped with advanced technology, including BMW’s iDrive system and various driver assistance features. These systems, while innovative, can be a source of frustration:
- iDrive System Glitches: The iDrive system may freeze, reboot unexpectedly, or fail to respond to inputs. Software updates can resolve most issues, but hardware failures require expensive replacements.
- Malfunctioning Parking Sensors and Cameras: Some owners report issues with the rearview camera or parking sensors, often caused by water ingress or faulty connections.
- Battery Drain: Parasitic drain from features like Comfort Access and telematics systems can cause the battery to discharge prematurely.
1.6 Paint and Trim Durability
Although the F32 has excellent build quality, some cosmetic issues have been noted:
- Paint Chipping: The front bumper and hood are prone to stone chips due to the coupe’s low profile and aerodynamic design.
- Interior Wear: Leather surfaces on the steering wheel and seats can show signs of wear, especially if not regularly conditioned.
2. What to Look for When Buying a Used BMW 4 Series Coupe (F32)
Buying a used F32 can be rewarding if you know what to inspect. Here’s a checklist:
2.1 Service History
- Ensure the car has been serviced according to BMW’s guidelines. Look for records of oil changes, transmission fluid replacements, and timing chain inspections.
2.2 Pre-Purchase Inspection (PPI)
- Always have the car inspected by a BMW specialist. Key areas to check include:
- Engine performance (signs of oil leaks, timing chain noise).
- Transmission behavior (smooth shifting, no delays).
- Suspension components (no clunking noises or uneven wear).
2.3 Test Drive Tips
- During a test drive, pay attention to:
- Turbo response and any unusual noises.
- Ride comfort and steering precision.
- Infotainment system responsiveness.
2.4 Check for Recalls
- Verify that all recall work has been completed. BMW issued recalls for certain models to address issues like faulty fuel pumps and airbags.
3. How Expensive Is It to Own a BMW 4 Series Coupe (F32)?
Owning a luxury coupe like the F32 comes with a premium, especially in terms of maintenance and repairs.
3.1 Maintenance Costs
- Oil Changes: $150-$250 per service (synthetic oil).
- Brake Pad and Rotor Replacement: $800-$1,500 (per axle).
- Transmission Fluid Change: $400-$600.
- Water Pump and Thermostat Replacement: $1,200-$1,800.
- Turbocharger Repair: $1,500-$3,000 (if needed).
3.2 Insurance Costs
- Insurance for the F32 averages $1,500-$2,500 annually, depending on coverage, location, and driving history.
3.3 Fuel Costs
- The F32 delivers respectable fuel economy for a performance coupe, with EPA ratings of 22-26 mpg combined. However, premium fuel is required, which adds to running costs.
3.4 Depreciation
- The 4 Series holds its value reasonably well compared to competitors. A 2018 model typically retains 50-60% of its original value after five years.
4. Final Thoughts
The BMW 4 Series Coupe (F32, 2018-2020) combines style, luxury, and driving pleasure, making it a popular choice among enthusiasts. However, potential buyers should be aware of common issues such as timing chain wear, turbocharger problems, and electrical glitches. Regular maintenance, a thorough pre-purchase inspection, and proactive care are essential to ensure a trouble-free ownership experience.
For those who appreciate its blend of performance and refinement, the F32 offers an engaging and rewarding drive—just be prepared for the associated costs of maintaining this premium vehicle. With the right approach, owning a 4 Series Coupe can be a delight for both the driver and the enthusiast within.