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BMW 4 420 d (2013–2015)

The BMW 4 Series, introduced in 2013, carved its own niche as the coupe and convertible spin-off of the ever-popular 3 Series. Sharing many underpinnings, it offers a sportier silhouette and a more individualistic appeal. These early models (2013-2015) represent an accessible entry point into BMW ownership but require careful consideration, particularly given their age and potential maintenance needs here in New Zealand.

Parts for the BMW 4 420 d

Known issues

Several potential issues plague this generation of 4 Series. The N20 4-cylinder petrol engines are known for timing chain guide failures, which, if left unchecked, can cause catastrophic engine damage. Listen for a rattling noise from the engine, especially on startup. The N47 diesel engines (if applicable) also have timing chain concerns. Oil leaks are common from the valve cover gasket, oil filter housing, and other areas. Electrical gremlins can also surface, affecting iDrive systems, sensors, and other electronic components. Suspension components, especially bushings and ball joints, may be worn due to New Zealand's road conditions.

WOF tips

When it comes to WOF time, ensure the tyres have adequate tread depth and are free from damage. Pay attention to brake pads and rotors, as worn brakes are a common failure point. Check for any fluid leaks, including oil, coolant, and brake fluid. Suspension components, such as worn ball joints and bushings, are frequently flagged. Ensure all lights are functioning correctly, and the windscreen washers operate as intended. The operation of safety systems like ABS and ESC will also be checked.

About the BMW 4 420 d

The 2013-2015 BMW 4 Series range boasts a choice of petrol and diesel engines, driving either the rear or all four wheels (xDrive). The driving experience is typically BMW: engaging, refined, and performance-oriented. However, like any European car of this vintage, regular maintenance is paramount. Pay close attention to service history, as neglected maintenance can quickly lead to expensive repairs. The earlier N20 and N47 engines (depending on the specific model) had some reliability concerns which will be discussed further below, and diligent owners will have addressed these. New Zealand's variable climate and often-rough road conditions can exacerbate wear and tear, making a thorough pre-purchase inspection essential.

Questions owners ask

What are the most common engine problems to look out for in a 2013-2015 BMW 4 Series in New Zealand?
For the 2013-2015 BMW 4 Series, particularly with the N20 4-cylinder petrol engines, timing chain guide failures are a significant concern. This can lead to catastrophic engine damage if not addressed. Listen for a rattling noise from the engine, especially on startup. If your vehicle has the N47 diesel engine, timing chain issues can also be a problem. Regular maintenance and a thorough pre-purchase inspection are crucial.
What WOF items should I pay close attention to for my 2013-2015 BMW 4 Series in NZ?
When preparing your 2013-2015 BMW 4 Series for its WOF, ensure tyre tread depth is adequate and there's no damage. Brake pads and rotors are common failure points, so check for wear. Look for any fluid leaks (oil, coolant, brake fluid). Worn suspension components like ball joints and bushings are frequently flagged due to New Zealand's road conditions. Also, confirm all lights are working, windscreen washers operate correctly, and safety systems like ABS and ESC are functional.
Are oil leaks common on the 2013-2015 BMW 4 Series, and where do they typically occur?
Yes, oil leaks are quite common on the 2013-2015 BMW 4 Series. You should particularly check the valve cover gasket and the oil filter housing, as these are frequent sources of leaks. Other areas can also develop leaks, so a visual inspection for any fluid drips is recommended.
Where can I get replacement timing chain components for my 2013-2015 BMW 4 Series (N20 or N47 engine) in NZ?
CARFIX stocks 330 SKUs for the 2013-2015 BMW 4 Series. While specific timing chain components might require a specialist, you can check with CARFIX for availability of related parts or inquire about our network of suppliers for critical engine components like those for the N20 and N47 timing chain systems.
What is the recommended service interval for a 2013-2015 BMW 4 Series in New Zealand?
The recommended service interval for the 2013-2015 BMW 4 Series is 10,000km. Adhering to this schedule is vital for maintaining the vehicle's performance and preventing common issues, especially given the potential for timing chain problems and the impact of New Zealand's variable climate.
What are common electrical issues in the 2013-2015 BMW 4 Series?
Electrical gremlins can surface in the 2013-2015 BMW 4 Series, affecting various components. Common issues include problems with the iDrive infotainment system, various sensors, and other electronic components. If you experience intermittent electrical faults, it's best to have them diagnosed by a qualified technician.