2014 BMW 428i Convertible Maintenance Schedule & Service Intervals

Key Takeaways

• CBS System: The 2014 BMW 428i Convertible uses BMW's Condition Based Service (CBS) system. Sensors monitor your driving conditions to determine exactly when maintenance is needed, eliminating a rigid fixed schedule .
• Oil Change Intervals: While the CBS system determines your specific interval, Pelican Parts recommends changing synthetic motor oil every 5,000 miles to maintain long-term engine health .
• Engine Specifications: The 428i is powered by the N20 2.0-liter turbocharged inline-four engine (or the N26 SULEV variant in some markets). This is a key difference from the 435i model, which uses the N55 6-cylinder engine .
• Brake Fluid: Brake fluid is a hydraulic fluid specially formulated to withstand extreme pressures and temperatures and should be changed at the intervals specified by your service center .
• Spark Plugs: For optimal engine performance and longevity, it is recommended to replace spark plugs at mileage intervals of 80,000 to 100,000 miles . The N20 engine uses spark plugs with a gap of 0.032 inches .

Understanding BMW's Condition Based Service (CBS) System

Your 2014 BMW 428i Convertible is equipped with an intelligent maintenance system called Condition Based Service (CBS) . Unlike traditional fixed schedules, CBS uses sensors and special algorithms to analyze your driving conditions, such as trip length and engine load. Based on this data, it recognizes your vehicle's specific maintenance requirements, adapting the service schedule to your individual user profile .

Important Service Data Storage: Information on required maintenance is continuously stored in your remote control key. Your BMW service center will read this data to suggest the right service procedures for your vehicle . Hand your service specialist the remote control with which the vehicle was driven most recently. Storage periods during which the vehicle battery was disconnected are not taken into account. If this occurs, have a service center update time-dependent maintenance procedures .

Engine Oil Service

BMW Factory Schedule

BMW's Condition Based Service system determines the precise oil change interval based on your driving conditions. BMW's original warranty program included Free Scheduled Maintenance for 48 Months or 50,000 Miles , which has since expired for all 2014 models.

Oil Specifications

The 2014 BMW 428i Convertible is powered by the N20 2.0-liter turbocharged inline-four engine . Different engines and climates require specific oil viscosities; always refer to your owner's manual for the type and viscosity of oil required for your car .

Owner Guidance

Motor oil is the single most important element in keeping your engine healthy and helping it to enjoy a long life . Pelican Parts recommends changing your synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil .

Brake Fluid Service

Service Importance

Brake fluid is a hydraulic fluid specially formulated to withstand the extreme pressures and temperatures of your braking system . Different brake systems require different brake fluid formulations; check your owner's manual for your vehicle's particular brake fluid specifications .

Owner Guidance

Brake fluid should be changed at the intervals specified by your vehicle's maintenance system. The fluid absorbs moisture over time and can lose its effectiveness if not replaced.

Spark Plug Service

Specifications

The N20 engine in the 2014 BMW 428i Convertible uses spark plugs with the following specifications :

• OEM Reference Number: SILZKBR8D8S
• Center Electrode Tip Material: Iridium
• Center Electrode Core Material: Platinum
• Resistance (ohms): 5000
• Gap Size: 0.032 inches
• Hex Size: 0.55 inches
• Reach: 26.5 mm
• Thread Diameter: 12.00 mm

Owner Guidance

For optimal engine performance and longevity, it is recommended to replace spark plugs at mileage intervals of 80,000 to 100,000 miles . Spark plugs are used to ignite the fuel-air mixture in the engine's combustion chamber and should be replaced as part of routine maintenance .

General Service Recommendations Summary

Frequently Asked Questions

1. How often should I change the oil in my 2014 BMW 428i Convertible?

Pelican Parts recommends changing your synthetic motor oil every 5,000 miles and always replacing the filter when changing the oil . The CBS system determines the specific interval based on your driving conditions.

2. What engine is in the 2014 BMW 428i Convertible?

The 428i is powered by the N20 2.0-liter turbocharged inline-four engine (or the N26 SULEV variant in some markets) . This is a 4-cylinder engine, distinguishing it from the 435i which uses a 6-cylinder N55 engine.

3. How does the BMW Condition Based Service (CBS) system work?

The CBS system uses sensors and special algorithms to analyze your driving conditions and determine maintenance requirements. Service data is stored on your remote control key and read by your service center .

4. What is the engine oil capacity for the 2014 BMW 428i Convertible?

The N20 2.0-liter engine requires approximately 5 liters of oil with a filter. Always check your owner's manual for the exact specification and viscosity for your climate.

5. When should the spark plugs be replaced?

For optimal engine performance and longevity, it is recommended to replace spark plugs at intervals of 80,000 to 100,000 miles . The OEM spark plug reference number is SILZKBR8D8S .

6. Does the 2014 BMW 428i Convertible require premium fuel?

Yes, like all BMW turbocharged engines, the N20 engine requires premium unleaded gasoline with a minimum octane rating of 91 AKI for optimal performance and fuel economy.

*Always consult your vehicle's owner's manual and CBS system for the most accurate maintenance requirements for your specific 2014 BMW 428i Convertible. Maintenance needs may vary by production date and driving conditions.*