2013 — 2016
125kW Electric Motor with 647cc Range Extender (REX) - Standard BEV REX
Electric/Petrol
Listen closely while driving over uneven roads. | Observation: Some early i01 models may show signs of wear in the suspension top mounts or control arm bushings, which can manifest as a slight knocking sound.
Engage the Range Extender (REX) manually if the battery is below 75%. | Observation: Observe the engine startup for smooth operation. Excessive vibration might suggest the engine mounts are due for a refresh.
Check the door seals and interior carpets after a wash or during rain. | Observation: It is worth verifying the integrity of the door and window seals, as any gaps can occasionally lead to moisture retention in the cabin.
Operate the charging port door and latch mechanism multiple times. | Observation: Ensure the motorized lock and seal are operating smoothly, as they are used frequently and can be sensitive to debris.
Time to inspect the REX cooling system and check for any minor oil seepage from the engine bay.
Consider a proactive check of the high-voltage cable connectors and thermal management system sensors.
Recommended interval to review the status of the auxiliary 12V battery and suspension health.
Verify the REX oil change history; keeping the 647cc engine well-lubricated is vital for its longevity.
Check the tire condition specifically for uneven inner-edge wear, which is common with the i3's unique geometry.
Ensure the cabin air filter has been changed recently to maintain effective climate control performance.
Confirm that the brake fluid has been flushed, as this helps protect the braking system, especially since regenerative braking is used primarily.
Review the history of the charging socket pins to ensure they remain clean and free from oxidation.
Estimated repair costs if issues arise
As this battery powers the vehicle's onboard electronics, it is common to replace it every 4-5 years to avoid 'ghost' electrical warnings.
If you notice increased vibration, you might eventually need to budget for new mounts to restore the smooth ride character.
Depending on the driving conditions the car has faced, you may want to keep a reserve for refreshing the front suspension components to maintain that sharp BMW handling.
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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