The BMW 4 Series (G22/G23/G26) from 2020-2023 represents a significant leap in design and technology compared to its predecessor. Available in coupe, convertible (cabriolet), and gran coupe (liftback) body styles, it offers a compelling blend of sporty performance, luxurious appointments, and everyday practicality. However, like any modern vehicle, it's crucial to be aware of potential issues and maintenance requirements, particularly within the context of New Zealand's unique driving conditions and WOF regulations.
Common issues to watch out for in the 2020-2023 BMW 4 Series include potential problems with the electronically controlled dampers (if equipped), which can exhibit leaks or failures. Software glitches in the iDrive system are also reported, though these are often resolved with software updates. Oil leaks, particularly from the valve cover gasket and oil filter housing, are worth checking. The automatic transmission, while generally reliable, should have its fluid changed at appropriate intervals (see below) to prevent future issues.
When taking a 2020-2023 BMW 4 Series for a WOF in NZ, pay close attention to the following: Check for any warning lights on the dashboard, especially those related to the airbags (SRS) or ABS systems. Ensure that the headlights and taillights are functioning correctly, and that the headlight alignment is within specifications. Inspect the tyres for adequate tread depth and even wear. Suspension components, including the dampers and springs, should be thoroughly examined for leaks, damage, or excessive wear. Brake pads and rotors will be checked for wear and damage, and ensure the parking brake functions correctly. Rust is less of a problem on these newer models but still check around usual areas; lower sills and around windscreens. Windscreen chips and cracks will be checked, especially in the driver's view.
The G22/G23/G26 4 Series boasts a range of powerful and efficient engines, including turbocharged inline-four and inline-six petrol options, as well as diesel variants. Power is typically delivered through a smooth and responsive eight-speed automatic transmission. Handling is sharp and precise, offering a genuinely engaging driving experience. Inside, the cabin is well-appointed with high-quality materials and advanced technology features, such as BMW's iDrive infotainment system and a suite of driver-assistance systems. In New Zealand, these cars are often subjected to a mix of urban and rural driving, impacting component wear. Consider the impact of Auckland's stop-start traffic or the open road cruising on engine and brake wear.