I concur; high mileage is subjective and may encompass anything up to 250,000 miles, I presume. The service history is crucial; after you identify a desired vehicle, obtain the VIN and contact BMW support. They will provide you with the servicing details via email, allowing you to verify if it corresponds with the iDrive records.
Indeed, servicing nine times out of ten is crucial; nevertheless, the issue lies in BMW's imprudent extended mileage oil intervals, which may be acceptable for the initial years but are suboptimal. Consequently, even with 100,000 miles on the odometer, individuals erroneously believe that changing the oil every 13,000 to 18,000 miles is adequate. If an individual has performed the servicing themselves, there may be concerns regarding their use of appropriate oil or opting for inferior products from discount retailers, necessitating the examination of invoices.