2016 — 2019
4.4L Twin-Turbo (N63B44) - 750i
Petrol
While driving at low speeds, gently apply the brakes to check for any shudder or vibration, which can indicate warped rotors, a common observation on these heavy performance sedans.
Check the infotainment system by scrolling through every menu for several minutes; if it hesitates or reboots, it is helpful to note that the iDrive module may need a software refresh or hardware inspection.
During your inspection, park on a level surface and check underneath the engine bay for any signs of weeping fluids, as the N63 engine's seals can sometimes show their age after higher mileage.
Before heading out, turn the steering wheel lock-to-lock while stationary to listen for any unusual groaning, as the steering rack and pump components on these vehicles benefit from careful, periodic monitoring.
Usually the time to evaluate the health of the cooling system components, such as hoses and the water pump, to ensure continued reliability.
A common interval to check the integrity of the suspension bushings and air suspension bellows, as these support the 7 Series' luxury ride quality.
Consider having a specialist verify the condition of the turbocharger oil lines and vacuum hoses to maintain optimal engine performance.
Prioritise regular engine oil changes using high-quality synthetic lubricants to keep the complex twin-turbo system running smoothly.
Keep a close eye on your coolant levels, as the N63 engine is quite temperature-sensitive.
Ensure the battery is kept in peak condition, as these cars have many electronic modules that rely on a healthy, consistent voltage.
Periodically inspect the condition of your tyres, as the vehicle's weight and power can cause them to wear more quickly than expected.
Find a trusted local BMW specialist who can perform regular diagnostics to catch minor software or sensor updates before they become an inconvenience.
Estimated repair costs if issues arise
Given the heat generated by the N63 engine, you might eventually need to budget for the replacement of aging rubber and plastic cooling lines to prevent minor leaks. This is a standard part of long-term ownership for this performance platform.
The air suspension provides that signature 'magic carpet' ride, but in cars of this age, it is common to consider that these components may naturally reach the end of their service life. Planning for this ensures your ride stays as comfortable as it should be.
As with many direct-injection engines, carbon buildup can occur over time. If you notice a slight decrease in throttle response, a walnut-blasting service is a common and effective way to restore engine efficiency.
Noticed something inaccurate or missing?Suggest an edit→
Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer