2020 — 2022
3.0L Turbo (B58B30) - 740i M Sport
Petrol
Observe the gear shifts while cruising in Comfort mode. Ensure there is no hesitation or clunking, as the ZF 8-speed is typically seamless; any jerkiness might suggest the transmission fluid is due for a service.
Navigate over uneven surfaces or speed bumps and listen closely for any knocking sounds from the suspension, specifically checking the air suspension struts which can occasionally show signs of wear on higher-mileage examples.
During your static inspection, cycle through the iDrive 7.0 system. Use the steering wheel controls and the rotary dial to ensure there is no lag or screen flickering, as the infotainment complexity can sometimes lead to minor software gremlins.
Check the engine bay after your test drive for any faint sweet aromas. While the B58 engine is generally robust, it is worth keeping an eye on the coolant expansion tank and hoses for signs of minor weeping, which is a common observation on vehicles of this maturity.
Consider a transmission fluid and filter change, even if the manufacturer states it is a lifetime fill.
Monitor the spark plugs and ignition coils, as these are vital for maintaining the B58's signature smooth power delivery.
A comprehensive inspection of the water pump and cooling system components is a sensible precaution to ensure ongoing reliability.
Verify that the service history shows regular oil changes using high-quality synthetic lubricants every 10,000 to 12,000 kilometers.
Check for a complete record of brake fluid flushes to keep the dynamic braking systems performing as intended.
Ensure the cabin air filter has been replaced recently to maintain the effectiveness of the climate control system.
Check that the vehicle has been running on high-octane fuel to keep the direct-injection system clean and efficient.
Confirm that the alloy wheels have been regularly balanced and aligned, as the 7 Series is sensitive to road vibrations.
Estimated repair costs if issues arise
While these are designed for comfort, should you notice the vehicle sitting unevenly after being parked, you might eventually need to budget for a repair as these components age.
In cars of this age, it is common to consider the cooling system as a wear item. If this component needs attention in the future to prevent overheating, it is a standard preventative maintenance task.
Given the performance capabilities of the 740i, the braking system works quite hard. Depending on the car's history, you might eventually need to budget for these consumables to maintain optimal stopping power.
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