Weird Noises When Pulling into Driveways?

Mosely · 05-13-2018, 10:12 PM

Not sure if you guys have experienced this, but when I pull into a pretty steep driveway at an angle, the inside tire lifts off the ground sometimes. When this happens, the car almost hesitates and makes a loud screech noise from the rear end. It almost feels like the diff gets confused and thinks it's having wheelspin so it cuts power for a second. Not sure what the screech noise is either but its super loud and my wife cringes every time it happens. Car is stock.

Any ideas?

DroneandDone · 05-14-2018, 12:38 AM

I'm curious about this too. It happens to my car during the same situation.

eeyang92 · 05-14-2018, 03:37 AM

Not sure if this is the same, but when I pull into a local gas station (at an angle) with a fairly deep/large bump, if my clutch is engaged I feel a jerky "bump" (maybe the ECU cutting throttle, or the diff shifting power) - although I haven't heard the screeching sound yet. If my clutch is disengaged, then it just goes over normally without any drama.

Mosely · 05-14-2018, 08:21 AM

Quote:

Originally Posted by eeyang92

Not sure if this is the same, but when I pull into a local gas station (at an angle) with a fairly deep/large bump, if my clutch is engaged I feel a jerky "bump" (maybe the ECU cutting throttle, or the diff shifting power) - although I haven't heard the screeching sound yet. If my clutch is disengaged, then it just goes over normally without any drama.

Yup this is pretty much the same thing I experience. I can’t tell if the screech is from the diff or from the tire as the diff locks and it touches the ground again. It’s done this since day 1 and otherwise has no issues but I’ve never had a car struggle over steep entrances like that. Tried different driving modes but it didn’t make a difference

Nezil · 05-14-2018, 02:47 PM

Quote:

Originally Posted by Mosely

Yup this is pretty much the same thing I experience. I can’t tell if the screech is from the diff or from the tire as the diff locks and it touches the ground again. It’s done this since day 1 and otherwise has no issues but I’ve never had a car struggle over steep entrances like that. Tried different driving modes but it didn’t make a difference

Mine does this too. The first time it happened, I thought I'd got the position wrong and either curbed the wheel or something worse...

I assume it's the diff reacting to the wheel that's in the air spinning wildly with no resistance.

reppucci · 05-14-2018, 02:57 PM

Noticed this past weekend driving through a gated community with many speed humps....the diff makes a horrible clanking screeching metallic noise after going over these bumps at 10 mph or so! I suspected the wheel became airborne for a second.

Only prior time I heard that was making a sharp right turn onto irregular uphill driveway, as described in these threads, with a small pothole on right side and giving it some gas. The diff wasn't happy! Not the stone in brakeshield..That I have also experienced.

No issues on open road. My diff was replaced under recall 18 months ago. I am encouraged by this thread in that it seems I am not the only one! So either this is normal or we all have bad diffs!

untzklee · 05-14-2018, 05:38 PM

so funny. Mine does this too exact thing

Mosely · 05-14-2018, 05:58 PM

I wonder if the F8x m3/4 guys have this issue too.

Gimmethecash · 05-14-2018, 08:49 PM

I get a few weird noises & wheel lift too at sharp angles to driveways- I chalk it up to short wheelbase and stiff frame, and don’t worry about it.

Spa2k · 05-14-2018, 09:05 PM

The diff may not be liking the angle at which it’s being loaded. Try a 90-degree turn into your driveway. Pull up with the driver’s side parallel with the curb and stop once you’re you’re halfway in front of the driveway. Then turn the front wheels full left and slowly enter the driveway until you’re all the way in. If there’s no noise, you’ve got your answer. You can back out the same way - slowly, so you don’t twist or bounce the car on its suspension.

BTW, this also works for vehicles that have front air dams with less than 4 or 5 inches of clearance. It’s the only way I’ve been able to get a couple of cars into my garage.

05-13-2018, 10:12 PM	#1
Mosely Lieutenant 594 Rep 450 Posts Drives: '18 M2 \| '20 X5 \| '07 E92 Join Date: Mar 2017 Location: SoCal iTrader: (1)	Weird Noises When Pulling into Driveways? Not sure if you guys have experienced this, but when I pull into a pretty steep driveway at an angle, the inside tire lifts off the ground sometimes. When this happens, the car almost hesitates and makes a loud screech noise from the rear end. It almost feels like the diff gets confused and thinks it's having wheelspin so it cuts power for a second. Not sure what the screech noise is either but its super loud and my wife cringes every time it happens. Car is stock. Any ideas? __________________ IG Photo Gallery: instagram.com/dr_m2sko/
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05-14-2018, 12:38 AM	#2
DroneandDone Private First Class 94 Rep 158 Posts Drives: 2005 LS430 Join Date: May 2017 Location: SoCal iTrader: (0)	I'm curious about this too. It happens to my car during the same situation.
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05-14-2018, 03:37 AM	#3
eeyang92 Captain 319 Rep 660 Posts Drives: LBB M2 LCI 6MT Join Date: Oct 2017 Location: CA iTrader: (0)	Not sure if this is the same, but when I pull into a local gas station (at an angle) with a fairly deep/large bump, if my clutch is engaged I feel a jerky "bump" (maybe the ECU cutting throttle, or the diff shifting power) - although I haven't heard the screeching sound yet. If my clutch is disengaged, then it just goes over normally without any drama.
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05-14-2018, 02:57 PM	#6
reppucci First Lieutenant 340 Rep 310 Posts Drives: 04A6 2.7T(DD), 16M2 BSM MT EP Join Date: Dec 2013 Location: Western CT iTrader: (0) Garage List 2016 M2 [0.00] 1995 M3 [0.00] 2006 Mini Cooper S ... [0.00] 2004 A6 2.7T [0.00] 1994 325is [0.00]	Noticed this past weekend driving through a gated community with many speed humps....the diff makes a horrible clanking screeching metallic noise after going over these bumps at 10 mph or so! I suspected the wheel became airborne for a second. Only prior time I heard that was making a sharp right turn onto irregular uphill driveway, as described in these threads, with a small pothole on right side and giving it some gas. The diff wasn't happy! Not the stone in brakeshield..That I have also experienced. No issues on open road. My diff was replaced under recall 18 months ago. I am encouraged by this thread in that it seems I am not the only one! So either this is normal or we all have bad diffs!
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05-14-2018, 05:38 PM	#7
untzklee Private First Class 46 Rep 69 Posts Drives: BMW M2 Join Date: Aug 2015 Location: Orange County iTrader: (0)	so funny. Mine does this too exact thing
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05-14-2018, 05:58 PM	#8
Mosely Lieutenant 594 Rep 450 Posts Drives: '18 M2 \| '20 X5 \| '07 E92 Join Date: Mar 2017 Location: SoCal iTrader: (1)	I wonder if the F8x m3/4 guys have this issue too. __________________ IG Photo Gallery: instagram.com/dr_m2sko/
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05-14-2018, 08:49 PM	#9
Gimmethecash Lieutenant 150 Rep 485 Posts Drives: F90 M5 Comp Join Date: Mar 2011 Location: Pasadena iTrader: (1)	I get a few weird noises & wheel lift too at sharp angles to driveways- I chalk it up to short wheelbase and stiff frame, and don’t worry about it.
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05-14-2018, 09:05 PM	#10
Spa2k Major 1194 Rep 1,086 Posts Drives: '13 JCW Join Date: Apr 2017 Location: US iTrader: (0)	The diff may not be liking the angle at which it’s being loaded. Try a 90-degree turn into your driveway. Pull up with the driver’s side parallel with the curb and stop once you’re you’re halfway in front of the driveway. Then turn the front wheels full left and slowly enter the driveway until you’re all the way in. If there’s no noise, you’ve got your answer. You can back out the same way - slowly, so you don’t twist or bounce the car on its suspension. BTW, this also works for vehicles that have front air dams with less than 4 or 5 inches of clearance. It’s the only way I’ve been able to get a couple of cars into my garage.
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