BMW 4 Series G22/G23/G26 420i (Cabriolet)
Model overview
A modern 4 Series with strong driving dynamics and extensive technology. Body style and equipment change the ownership picture.
Pros
- Responsive handling
- Modern cabin
- Refined long-distance driving
Cons
- Complex electronics
- Premium servicing costs
- Expensive larger wheels and tyres
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Electrical and infotainment faultsMedium
- Suspension wearMedium
- Cooling-system leaks on applicable versionsMedium
Maintenance
Follow the exact powertrain schedule and maintain body-specific equipment where fitted.
Engine overview · 2.0L 4-cyl PETROL
A modern turbocharged BMW four-cylinder offering strong performance in several 4 Series applications, with durability depending heavily on correct servicing and the exact engine calibration.
Pros
- Strong performance flexibility.
- Good mid-range response.
Cons
- Complex cooling, injection and turbocharging systems.
- Different calibrations and revisions require VIN-specific guidance.
Common problems & ownership concerns
Potential impact: Low · Medium · High. This describes possible consequences, not fault likelihood.
- Cooling-system component wearMedium
- Oil leaks from engine sealing areasMedium
- Direct-injection and turbocharger maintenanceMedium
Maintenance
Follow the VIN-specific BMW service schedule and approved fluid specifications.
These are general ownership concerns, not a diagnosis. Equipment and engine details vary by version and production date.
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