Guidance on Acquiring a Pre-Owned Demonstrator M340i Touring with 1500 Miles Recorded

[keithmerc220]

Registered in September 2025, this highly desirable vehicle is equipped with nearly every optional feature and is listed for £61,000 at a prominent BMW dealership. It has completed approximately 1400 miles, and I have been informed that it will reach up to 1500 kilometres upon delivery to me.

I am apprehensive regarding the adequacy of the break-in period for this car over the 1500 kilometres and the probability that it has been subjected to excessive use, as is typical with demonstrator vehicles. My comprehension, together with BMW's guideline for the initial 1200 miles, indicates that the break-in phase is critical and may affect the vehicle's longevity if beyond.


Can anyone, particularly BMW personnel, provide insight on whether it is feasible that it has been abused? Is this offer excessively advantageous to be credible?

[TDudette]

I would advise caution; nevertheless, certain engines do not require extensive break-in periods, or at least not for prolonged durations. I cannot recall all the specifics, so please conduct some research on the topic.I understand that my engine (S55) requires the essential RIS, yet I have also heard that it is not imperative.

[ByteStorm]

I understand your perspective and your justified caution.
My perspective is that a car valued at over £60,000 is unlikely to be test-driven by seventeen-year-olds, though I may be mistaken.
According to TDudette, the running nowadays is not really necessary.
 

[keithmerc220]

I understand your perspective and your justified caution.
My perspective is that a car valued at over £60,000 is unlikely to be test-driven by seventeen-year-olds, though I may be mistaken.
According to TDudette, the running nowadays is not really necessary.

Is it advisable to perform an oil change following the break-in period?

[IrvesBMW]

I understand your perspective and your justified caution.
My perspective is that a car valued at over £60,000 is unlikely to be test-driven by seventeen-year-olds, though I may be mistaken.
According to TDudette, the running nowadays is not really necessary.

Only a genuine M automobile need a break-in time, as the other models have not undergone the modifications by the M division.