The 2016-2020 BMW 4 Series strikes a balance between performance and style, making it a popular choice in New Zealand. Available as a Coupe, Gran Coupe, and Convertible, this generation offers a sporty driving experience with a touch of luxury. However, like all vehicles, it has its quirks, and understanding these is key to a trouble-free ownership experience.
• Timing Chain Issues (N20/N26 engines in 420i/428i models): Listen for rattling sounds, especially on cold starts. • Oil Leaks (N20/N26 and B48/B58 engines): Check for leaks around the valve cover gasket and oil filter housing. • Adaptive M Suspension Failure: Can result in a harsh ride and expensive repairs. • ZF 8HP Transmission Problems: Ensure smooth shifting; consider servicing around 100,000km. • Electric Power Steering (EPS) Issues: Can cause inconsistent or heavy steering feel. • Convertible Top Malfunctions: Check for leaks and smooth operation in Convertible models. • iDrive System Glitches: Watch for software issues and screen failures.
WOF tips
• Lights: Ensure all headlights, taillights, brake lights, and indicators are functioning correctly. • Tyres: Check for sufficient tread depth and any signs of damage. • Brakes: Inspect brake pads and rotors for wear and tear. • Suspension: Look for any signs of damage or wear, especially on the adaptive dampers if equipped. • Steering: Check for excessive play or looseness in the steering system. • Windscreen: Verify that the windscreen is free from cracks or chips.
About the BMW 4 M4 Competition
Based on the F32, F33, and F36 platforms, the 4 Series offers a range of engines, from fuel-efficient four-cylinders to powerful inline-sixes. The driving dynamics are generally excellent, characterized by sharp handling and a comfortable ride. However, the adaptive M suspension, a common option, is known to be a potential weak point. The car's complex electronics require specialized diagnostic tools for proper maintenance. The infotainment system, while modern for its time, can be prone to glitches.
Questions owners ask
What are the common engine problems to watch out for in a 2016-2020 BMW 4 Series, especially for the 420i/428i models?
For 420i and 428i models with N20/N26 engines, timing chain issues are a known concern. Listen for rattling sounds, particularly on cold starts. Oil leaks are also common across N20/N26, B48, and B58 engines, often found around the valve cover gasket and oil filter housing.
Is the adaptive M suspension a good option for the BMW 4 Series (F32, F33, F36 platforms)?
While the adaptive M suspension offers excellent driving dynamics, it's known to be a potential weak point and can lead to expensive repairs if it fails, resulting in a harsh ride.
What should I look for during a WOF inspection for my 2016-2020 BMW 4 Series in New Zealand?
During a WOF, pay close attention to all lights (headlights, taillights, brake lights, indicators), tyre tread depth and condition, brake pad and rotor wear, and any signs of damage or wear on the suspension, especially if equipped with adaptive dampers. Also, check for excessive play in the steering and ensure the windscreen is free from cracks or chips.
How often should I service the ZF 8HP transmission in my BMW 4 Series?
It's recommended to consider servicing the ZF 8HP transmission around 100,000km to ensure smooth shifting and prolong its lifespan.
Where can I get an oil filter for my BMW 4 2016–2020 in NZ?
CARFIX stocks 135 SKUs for the 2016-2020 BMW 4 Series, including oil filters. You can find the correct oil filter for your specific engine (N20/N26, B48/B58) through CARFIX.
Are there any common electronic issues with the 2016-2020 BMW 4 Series?
Yes, the complex electronics of the 4 Series can be prone to issues. The iDrive infotainment system, while modern for its time, can experience glitches and screen failures. Electric Power Steering (EPS) issues can also lead to inconsistent or heavy steering feel.