Inspection checklist

Before you go

• Open recalls. Run the VIN through NHTSA or a BMW dealer and ask for proof every recall was done.
• History report. Check the title, accidents, owners and mileage record.
• Service records. Ask for them in advance, ideally from a BMW dealer or specialist.
• Certified or not. BMW can still certify 2022 to 2027 cars. If this one is certified, ask for the paperwork showing when its cover ends.
• Independent inspection. Book a pre-purchase inspection with a shop that knows this engine.

Known problems on this car

• Coolant loss / expansion tank about $900 to fix

  Inspect the expansion tank seams, ask owner about coolant top-ups.

• Oil filter housing and valve cover gasket leaks about $1,500 to fix

  Look for oil or coolant residue at the oil filter housing and the valve cover, and ask about coolant top-ups.

• PCV diaphragm wear

  Pre-purchase scan for PCV and misfire codes, check idle quality.

• Carbon buildup 2022 to 2026 cars about $600 to fix

  Ask whether walnut blasting has been done, budget for it on higher mileage cars.

• High pressure fuel pump about $1,100 to fix

  Ask about tune history and fueling upgrades, listen for HPFP whine at idle.

At the viewing

Newest M240i, fewest miles in the set. Verify full service history, walnut blasting status on higher mileage examples (not needed on 2027 cars, which add port injection), no accident history, and up-to-date software: iDrive 7 on 2022 to 2024 cars, the Curved Display with iDrive 8.5 from 2025. Check by VIN that recalls are done. On 2022 to 2025 cars, BMW covers the EVAP purge valve for 15 years or 150,000 miles if it fails (SI B01 01 26); a dealer confirms the cover by VIN.