[Charlie@McKennaBMWService]

Originally Posted by bit8m

I appreciate you taking the time to provide feedback!

Working at a dealer myself(nearly 13yrs+ in the business), road testing vehicles for noise concerns are by far the most daunting tasks the technician can tackle. Even if the customer had very specific instructions, there are so many variables that factor in(ex: road conditions, weather conditions, etc). To road test a vehicle around the dealership wouldn't be a fair playing field or more specifically it wouldn't be comparing apples to apples. I can't speak on behalf of every dealership but rest assured my team of techs don't find pleasure in road testing vehicles, quite the opposite really. In more cases than not, the techs drive more "cooler" vehicles than the ones they're road testing, for example my primary technician drives a 620whp Evo X so they're definitely not "joy riding" vehicles for no apparent reason.

To answer your question OP, was the mileage found reasonable? I'd say so... Otherwise from a customer standpoint I wouldn't even mention any drivability concerns because you'd have to accept that miles are going to be added onto your vehicle just to chase something that might be harder to hear for a short period of time. Whereas the customer that has days and days of seat time to hear the noise in which they're concerned about.

[bit8m]

Originally Posted by Charlie@McKennaBMWService

Working at a dealer myself(nearly 13yrs+ in the business), road testing vehicles for noise concerns are by far the most daunting tasks the technician can tackle. Even if the customer had very specific instructions, there are so many variables that factor in(ex: road conditions, weather conditions, etc). To road test a vehicle around the dealership wouldn't be a fair playing field or more specifically it wouldn't be comparing apples to apples. I can't speak on behalf of every dealership but rest assured my team of techs don't find pleasure in road testing vehicles, quite the opposite really. In more cases than not, the techs drive more "cooler" vehicles than the ones they're road testing, for example my primary technician drives a 620whp Evo X so they're definitely not "joy riding" vehicles for no apparent reason.

To answer your question OP, was the mileage found reasonable? I'd say so... Otherwise from a customer standpoint I wouldn't even mention any drivability concerns because you'd have to accept that miles are going to be added onto your vehicle just to chase something that might be harder to hear for a short period of time. Whereas the customer that has days and days of seat time to hear the noise in which they're concerned about.

I appreciate you sharing your thoughts and perspective.

[XutvJet]

Originally Posted by Charlie@McKennaBMWService

Working at a dealer myself(nearly 13yrs+ in the business), road testing vehicles for noise concerns are by far the most daunting tasks the technician can tackle. Even if the customer had very specific instructions, there are so many variables that factor in(ex: road conditions, weather conditions, etc). To road test a vehicle around the dealership wouldn't be a fair playing field or more specifically it wouldn't be comparing apples to apples. I can't speak on behalf of every dealership but rest assured my team of techs don't find pleasure in road testing vehicles, quite the opposite really. In more cases than not, the techs drive more "cooler" vehicles than the ones they're road testing, for example my primary technician drives a 620whp Evo X so they're definitely not "joy riding" vehicles for no apparent reason.

To answer your question OP, was the mileage found reasonable? I'd say so... Otherwise from a customer standpoint I wouldn't even mention any drivability concerns because you'd have to accept that miles are going to be added onto your vehicle just to chase something that might be harder to hear for a short period of time. Whereas the customer that has days and days of seat time to hear the noise in which they're concerned about.

Great post. I'd also imagine the last thing most techs want to do is go out and drive around and waste time as it impacts their ability to bill time and ultimately make money for themselves.

[XutvJet]

As for the OPs whooshing and low speeds, sure sounds to me like the typical turbo wastegate and diverter sounds. I can hear all sorts turbo sounds at slower speeds, especially under moderate throttle.

[bryan_G01]

do you have dimlped or slotted rotors?

[Charlie@McKennaBMWService]

Originally Posted by XutvJet

Great post. I'd also imagine the last thing most techs want to do is go out and drive around and waste time as it impacts their ability to bill time and ultimately make money for themselves.

That's precisely it... Not to air out their laundry but in almost every case they are not compensating nearly enough or at all at times to road test vehicles. Plus they know there's always risk of people crashing into them while road testing vehicles(it's happened a million times - ex: Snewj on Youtube got rear ended in his 2018 M4 while a tech was on a road test).