What exactly is engine braking?
#1
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I have searched the forum to learn about engine braking. I understand how you can change gear to use the engine to slow the car but what I want to know is how the E60 uses engine braking in everyday driving in D, without any input from me. Does it employ some kind of engine braking when you apply the brake? Could some savvy person give me a brief explanation??
thanks,
Cojo
thanks,
Cojo
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Cojo,
Engine braking is the retardation of the car when you are off the throttle i.e instead of the engine driving the car, the car is driving the engine.
However, because you have an automatic gearbox, there is no engine braking available in D, as the engine will drop to tick-over and the gearbox will disconnect the drive from the engine. Hence the reason why Auto's use more brake pads than Manual cars, and that you cannot "bump start" an Auto.
If you knock your gearbox to M, then you will get engine braking.
Mike
Engine braking is the retardation of the car when you are off the throttle i.e instead of the engine driving the car, the car is driving the engine.
However, because you have an automatic gearbox, there is no engine braking available in D, as the engine will drop to tick-over and the gearbox will disconnect the drive from the engine. Hence the reason why Auto's use more brake pads than Manual cars, and that you cannot "bump start" an Auto.
If you knock your gearbox to M, then you will get engine braking.
Mike
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Or the easy way to put it... the engine is dragging the car and slowing it down
#4
Originally Posted by AlwynMike' post='604207' date='Jun 17 2008, 01:47 AM
Cojo,
Engine braking is the retardation of the car when you are off the throttle i.e instead of the engine driving the car, the car is driving the engine.
However, because you have an automatic gearbox, there is no engine braking available in D, as the engine will drop to tick-over and the gearbox will disconnect the drive from the engine. Hence the reason why Auto's use more brake pads than Manual cars, and that you cannot "bump start" an Auto.
If you knock your gearbox to M, then you will get engine braking.
Mike
Engine braking is the retardation of the car when you are off the throttle i.e instead of the engine driving the car, the car is driving the engine.
However, because you have an automatic gearbox, there is no engine braking available in D, as the engine will drop to tick-over and the gearbox will disconnect the drive from the engine. Hence the reason why Auto's use more brake pads than Manual cars, and that you cannot "bump start" an Auto.
If you knock your gearbox to M, then you will get engine braking.
Mike
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The motor's compression is what ultimately is the source of the engine braking, and the clutch is what's holding it. It's often said that brake pads are cheaper to replace than clutches/transmission parts, so using your brakes to slow the car instead of the trans is the prudent choice.
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My Ride: 2007 525i (not LCI) - Alpine white, M sport package, Comfort seats, Logic 7, Bluetooth, Xenon adaptive headlights, PDC, sunroof, A/C with extended features, etc.
actually, you can still feel some engine braking on D if you release the throttle at high revs just before the gear shifts...
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Originally Posted by AlexFW' post='604536' date='Jun 17 2008, 04:43 PM
Steptronic is an automatic gearbox so no engine braking
Come to think of it, I've always downshifted to engine brake when driving hard (on a track, etc) with a manual tranny. With the 550i sport auto I tap down a gear or two before entering a turn. I DO feel engine braking so I THINK its the same.