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I was looking at a BMW X5 50e. With my ICE I've been told to start the engine and drive away gently. Test-driving the 50e I noticed it was in electric mode un
by WirelessGigabit 3y ago
I was looking at a BMW X5 50e.
With my ICE I've been told to start the engine and drive away gently.
Test-driving the 50e I noticed it was in electric mode until the ramp and as I floored it the ICE kicked in and immediately went to high RPM.
To this date I have not seen an explanation as to why this does not harm the engine, and yet it harms MY engine when I immediately minimize the distance between the gas pedal and the floorboard.
It's not that they have an electric oil pump that kicks in _BEFORE_ the engine revs.
And hand-wavy gestures like 'oh they're built' for it don't explain HOW they fixed it.
What's the fix? Different tolerances? Different material that doesn't wear? Thicker material so it can wear more before problems appear (what about tolerances then?).
- j45 3y agoBMWs are great machines, and I know many folks who love them.. I’m not super familiar BMWs except the stereotypes to enjoy them new until 60k miles and sell to avoid any engineered maintenance. And maybe less as you go higher end. My understanding is engines should be modified or able to work like this. Not sure if each make does it a bit different but a part of me wonders if it has something to do with the engine stopped feature when parked at a redlinght
- pandaman 3y agoWhen were you told to drive gently after starting the engine? That was a legitimate issue with early turbos, which would break if you tried to spin them up cold, and that was eventually solved in order to put a turbo in every car nowadays. Furthermore, BMWs had been turning engine off when stopped for the past 20 years or so. As for the oil pump, I am pretty sure it's driven off the engine itself so you don't need to wait till it spins up.