[miked02]

2020 X5 - When I start the car, keeping my foot on the brake pedal, then shift to reverse to exit the garage, the car experiences some motion, soft of like a soft lurch.

Just wondering if this is normal or if I should bring it in. It still has CPO warranty.

Thanks

[Marty in NY]

Originally Posted by miked02

2020 X5 - When I start the car, keeping my foot on the brake pedal, then shift to reverse to exit the garage, the car experiences some motion, soft of like a soft lurch.

Just wondering if this is normal or if I should bring it in. It still has CPO warranty.

Thanks

I'm not quite sure what you mean by "some motion", are you saying it actually rolls backwards with your foot still on the brake? If so, how far?

All automatics I've ever driven give a little nudge when going from park to drive or park to reverse or drive to reverse, etc. With the foot on the brake, the car doesn't actually roll any at all, its just a nudge as if someone is pushing on the bumper but your foot is on the brake so all you feel is the suspension moving. My X5 is very smooth in this regard and you can hardly feel the nudge. Some might call it a squat.

If yours is actually moving backwards, yes you should have it checked out. You may have brake issues.

[jad03060]

Somewhat depends on what the current idle speed is plus, whether the parking brake is engaged, but yes, shifting into gear can cause a slight movement as the drivetrain tensions up. Doesn’t actually mean that the vehicle actually rolls forward or backwards though.

[miked02]

Originally Posted by Marty in NY

I'm not quite sure what you mean by "some motion", are you saying it actually rolls backwards with your foot still on the brake? If so, how far?

All automatics I've ever driven give a little nudge when going from park to drive or park to reverse or drive to reverse, etc. With the foot on the brake, the car doesn't actually roll any at all, its just a nudge as if someone is pushing on the bumper but your foot is on the brake so all you feel is the suspension moving. My X5 is very smooth in this regard and you can hardly feel the nudge. Some might call it a squat.

If yours is actually moving backwards, yes you should have it checked out. You may have brake issues.

By some motion I really mean more of a nudge as you call it. As far as I can tell the wheels aren't moving when it happens. I've only ever owned cars with a manual transmission / or electric and never really paid attention to this in rentals etc.

Originally Posted by jad03060

Somewhat depends on what the current idle speed is plus, whether the parking brake is engaged, but yes, shifting into gear can cause a slight movement as the drivetrain tensions up. Doesn’t actually mean that the vehicle actually rolls forward or backwards though.

Thanks. Tomorrow I'll try to take a video to capture the lurch/ nudge and hopefully that will confirm it's normal. Probably overthinking it.

[Marty in NY]

Originally Posted by miked02

By some motion I really mean more of a nudge as you call it. As far as I can tell the wheels aren't moving when it happens. I've only ever owned cars with a manual transmission / or electric and never really paid attention to this in rentals etc.

Thanks. Tomorrow I'll try to take a video to capture the lurch/ nudge and hopefully that will confirm it's normal. Probably overthinking it.

In that case it sounds normal to me. In some cars, not the X5, well at least not in mine, when you shift from park into any drive gear, the car will nudge and depending on the rpm at that point it may even squat a little as the suspension soaks in the nudge and I've had cars that would even make a sound when this happens, something like sitting in an old chair with springs under the bottom cushion. Normally this would be in an old car with tired suspension bushings

Right you are, you would never hear or feel any of this in a manual tranny car.

[jad03060]

In a manual transmissioned vehicle, sort of like having the parking brake on after putting it in gear, then starting to release the clutch…it may not move, but any slack in the drivetrain would be taken up and you might feel it.

In a situation where the idle speed is higher than normal because of the cold, you might notice it a bit more.

Without being there, it does sound normal, though.

[BlkGS]

Originally Posted by jad03060

In a manual transmissioned vehicle, sort of like having the parking brake on after putting it in gear, then starting to release the clutch…it may not move, but any slack in the drivetrain would be taken up and you might feel it.

In a situation where the idle speed is higher than normal because of the cold, you might notice it a bit more.

Without being there, it does sound normal, though.

This exactly. You're just loading up against the brakes. This is basically how launch control in an automatic works, except in launch control you've got full brakes applied and you're pushing against it with a lot more power than just sitting at idle.

[gfeiner97]

Originally Posted by miked02

2020 X5 - When I start the car, keeping my foot on the brake pedal, then shift to reverse to exit the garage, the car experiences some motion, soft of like a soft lurch.

Just wondering if this is normal or if I should bring it in. It still has CPO warranty.

Thanks

If your X5 is S-Drive, there is the following TSB.