Post 745260 by rotax740 on 2014-10-28 22:39:49
hi guys and gals I'm new to this, well here goes.
I've recently acquired a 53 plate V70R, what a great car !!! Sadly tho the 4 wheel drive system has stopped working :-/
If I park on loose ground then set off with the hand brake on and the front wheels spin only.
There is no noise from the drive line and it drives fine front wheel drive only, it was working fine 3 weeks ago but now nothing :-/
It may be something silly but there is limited information available re AWD faults. So I hope someone on here can help.
Post 745263 by MoleT-5R on 2014-10-28 22:46:15
have you tried launching the car with the h/brake off and videoing that, may be it will work as Volvo intended without the handbrake restricting it......worth a try
Post 745264 by jamesy12345 on 2014-10-28 22:47:05
why handbrake on? try it without
edit too slooow
Post 745266 by MoleT-5R on 2014-10-28 22:53:59
makes no sense to me why the handbrake is being used to test the awd, all that is likely to happen is to help destory your awd or the clutch....
Post 745267 by rotax740 on 2014-10-28 22:55:42
I tried with the handbrake on just to see, it wasn't fully on kind of just on. I was expecting the rear wheels to over come the braking force. ....... Rightly or wrongly :-(
I'll re try tomorrow without the brake on :-)
Post 745271 by rotax740 on 2014-10-28 22:59:32
I forgot to say my car is an auto and I didn't launch the car wildly just enough to see if the car wold bite.
Post 745273 by MoleT-5R on 2014-10-28 23:01:27
[QUOTE=rotax740;745267]I tried with the handbrake on just to see, it wasn't fully on kind of just on. I was expecting the rear wheels to over come the braking force. ....... Rightly or wrongly :-(
I'll re try tomorrow without the brake on :-)[/QUOTE]
to be fair drive it onto a nice grassy patch and floor it you should have 4 nice tracks and all is good
Post 745275 by jamesy12345 on 2014-10-28 23:04:48
I seem to remember something about handbrakes & AWD...
http://corner-carvers.com/forums/showthread.php?t=48025
To disable the rear axle, pull the emergency brake up one click. Helpful when the conditions cause the AWD to crab walk when such behavior is not desired.
Can anyone confirm
Post 745279 by Dangerous Dave on 2014-10-28 23:10:42
[QUOTE=jamesy12345;745275]I seem to remember something about handbrakes & AWD...
http://corner-carvers.com/forums/showthread.php?t=48025
To disable the rear axle, pull the emergency brake up one click. Helpful when the conditions cause the AWD to crab walk when such behavior is not desired.
Can anyone confirm[/QUOTE]
Sounds like it would use the handbrake switch to dactivate the haldex system so only the front wheels are driven.
Post 745280 by jamesy12345 on 2014-10-28 23:12:01
[QUOTE=Dangerous Dave;745279]Sounds like it would use the handbrake switch to dactivate the haldex system so only the front wheels are driven.[/QUOTE]
I think I saw a road test where they did it
edit
oh and since we're in general section - this does not apply to the early P80 cars!!
Post 745283 by Dangerous Dave on 2014-10-28 23:15:59
[QUOTE=jamesy12345;745280]oh and since we're in general section - this does not apply to the early P80 cars!![/QUOTE]
You mean ones with the old school (better) mechanical AWD system :P :D
Post 745284 by jamesy12345 on 2014-10-28 23:18:35
[QUOTE=Dangerous Dave;745283]You mean ones with the old school (better) mechanical AWD system :P :D[/QUOTE]
yep like Goldmember/Dr. Know parked on my drive
Post 745712 by Dream3r on 2014-10-31 16:46:14
The Haldex is disengaged with the handbrake on.
Post 745729 by Ettienne on 2014-10-31 18:00:14
[QUOTE=Dream3r;745712]The Haldex is disengaged with the handbrake on.[/QUOTE]
I seem to remember something about that handbrake and dynos
Post 747845 by glock19 on 2014-11-13 01:43:53
To test your AWD, try this [video=youtube;ooQRxlChvMw]https://www.youtube.com/watch?v=ooQRxlChvMw[/video]
Post 747941 by Santa on 2014-11-13 19:08:01
The handbrake does disengage the rear wheel drive............up to a certain speed (I think)