Page 1 of 1
Small bang when reversing around a corner
Posted: Wed Jan 04, 2017 10:11 pm
by x5e53
I hear a slight bang and a small judder when I reverse whilst turning the wheel.
Even on a flat surface (so no kerbs etc.).
Usually happens when im reversing to the right.
Any ideas?
Re: Small bang when reversing around a corner
Posted: Wed Jan 04, 2017 10:21 pm
by Horizon
http://xdrivers.co.uk/forum/index.php/t ... l#msg83309
Is it similar to this thread.? Unfortunately there wasn't a resolve posted.
Re: Small bang when reversing around a corner
Posted: Thu Jan 05, 2017 7:04 am
by Alan Gunn
[quote="Horizon"]
http://xdrivers.co.uk/forum/index.php/t ... l#msg83309
Is it similar to this thread.? Unfortunately there wasn't a resolve posted.
[/quote]
Wiper upgrade ??.
Re: Small bang when reversing around a corner
Posted: Thu Jan 05, 2017 6:09 pm
by Horizon
Re: Small bang when reversing around a corner
Posted: Fri Jan 06, 2017 11:43 am
by AW8
Hard to tell if driveline or rear bushes.
Once warmed up do some kickdown acceleration from standstill or 30 mph. If you get a thud then it could be rear subframe bushes.
If noise is metallic only engaging reverse it might be auto box related.
Re: Small bang when reversing around a corner
Posted: Sat Jan 07, 2017 11:53 pm
by x5e53
No noise on kickdown. Only when in reverse. Even then, not 100% of time, only when reversing while cornering/turning.
Very strange. Will get all bushes checked and diff oil checked/changed. Assuming diff oil can be changed in a 4.8is, some units are marketed as 'sealed for life'.
Re: Small bang when reversing around a corner
Posted: Mon Jan 09, 2017 1:20 pm
by Steamyrotter
Are you sure you haven't knocked someone off their bike???
(Surprised someone hasn't suggested similar yet....)
(not surprised i did though!!!)
There is also the possibility of the rear Handbrake shoes binding and or releasing in reverse,,,
Might be worth getting the disc/drums off and checking the internals and shoes for debris and adjustment etc...
Re: Small bang when reversing around a corner
Posted: Wed Jan 11, 2017 8:40 pm
by spartacus
[quote="x5e53"]
Very strange. Will get all bushes checked and diff oil checked/changed. Assuming diff oil can be changed in a 4.8is, some units are marketed as 'sealed for life'.[/quote]
Ignore the 'sealed for life' line. Audi quote that too on the rear diff on Quattro models. If it's approaching 100k or indeed exceeded that, then by all means drain and refill. Always open the filler plug before dropping the drain plug in case it's seized. Stuff will come out like Mellow Birds. Check for swarf just in case.
Use correct specification gear oil to refill and don't exceed quantity or you could burst the driveshaft seals.