New XC70 - Broken down on first trip. - Page 2

Longhouse21 · May 12th, 2020, 11:23

It's possible, if a bit crude, to check the AWD by trying an"energetic" start on wet grass or other slippery surface. If the AWD is defective, front wheels will slip and rears won't cut in. Can also be done by getting all 4 wheels off the ground, starting the car and engage gear...all 4 wheels should rotate.
Wouldn't write off a the possibility of a wheel bearing, although unlikely as they generally don't fail without warning, but it's always possible. The car can be perfectly fine, or appear so, at an MOT and fail very soon after (just happened to my neighbours granddaughter...I found a broken rear spring days after an MOT).

Longhouse21 · May 12th, 2020, 11:27

Quote:

Originally Posted by Clan

Actually that is exactly the symptom of a rough wheel bearing as the load comes off and on the noise alters . It is very rare you will feel any play in a noisy wheel bearing .

I bow to greater experience here Clan and agree with your comments, particularly the last point about feeling play in a noisy bearing. I would add that a stethoscope placed on the bearing housing is a very good way of detecting noisy bearings.

Bonefishblues · May 12th, 2020, 11:28

Quote:

Originally Posted by Longhouse21

It's possible, if a bit crude, to check the AWD by trying an"energetic" start on wet grass or other slippery surface. If the AWD is defective, front wheels will slip and rears won't cut in. Can also be done by getting all 4 wheels off the ground, starting the car and engage gear...all 4 wheels should rotate.
Wouldn't write off a the possibility of a wheel bearing, although unlikely as they generally don't ail without warning, but it's always possible. The car can be perfectly fine, or appear so, at an MOT and fail very soon after (just happened to my neighbours granddaughter...I found a broken rear spring days after an MOT).

If AWD's fubarred, then it's really obvious IMHO, because rampant torque steer.

Longhouse21 · May 12th, 2020, 11:52

Quote:

Originally Posted by Bonefishblues

If AWD's fubarred, then it's really obvious IMHO, because rampant torque steer.

Would you see that with the coupling failure or would it operate just as a FWD? I'm surprised at torque steer if it operates in FWD only mode but as I have no experience other than with working (note, not working on) Honda AWD systems, I'm not experienced enough to understand why torque steer would be pronounced.

Bonefishblues · May 12th, 2020, 12:03

Quote:

Originally Posted by Longhouse21

Would you see that with the coupling failure or would it operate just as a FWD? I'm surprised at torque steer if it operates in FWD only mode but as I have no experience other than with working (note, not working on) Honda AWD systems, I'm not experienced enough to understand why torque steer would be pronounced.

If FWD only (and it happened twice on our old XC70 of this era) then it was really apparent because junction scrabble, and the torque steer effect (presumably) caused because no drive was going rearwards.

Interestingly, a neighbour has a FWD only D3 model from 2016 and he reports the same with his.

Longhouse21 · May 12th, 2020, 12:16

Quote:

Originally Posted by Bonefishblues

... it was really apparent because junction scrabble...

THAT I can sympathise with. Happens with my V70 D5 in both dry and wet, particularly when wheels not straight ahead but set to a turn angle and heavy boot applied.

R-P · May 12th, 2020, 13:46

What is junction scrabble?

My Prius just passed MOT but I am pretty sure the front wheel bearing is shot, which I noticed within a week of the MOT. But no mention of it in the list of adviced repairs.
Shot AGAIN, common problem that they only last <100k. Right bearing and it grinds when turning left, but only when going forward, strangely enough.

barrybritcher · May 12th, 2020, 13:47

agreed with above - my wheel bearing was making a racket but wasn't detectable with the usual wheel tests.

However once I got the wheel off and rotated the hub by hand you could SEE the resistance.

Sebastienclement · May 12th, 2020, 13:56

So this is where I'm at so far:

On the flat I get a rotational "ssshhhhhhh" or whirring.

When turning to the right that noise disappears and all is well.

When travelling up hill I get the rotational clicking and it sounds really quite broken!

Wheel bearing?

barrybritcher · May 12th, 2020, 14:01

Whip the wheel off / disc off one afternoon

May 12th, 2020, 11:23	#11
Longhouse21 Master Member Last Online: Apr 20th, 2024 07:18 Join Date: Jan 2011 Location: Warrington	It's possible, if a bit crude, to check the AWD by trying an"energetic" start on wet grass or other slippery surface. If the AWD is defective, front wheels will slip and rears won't cut in. Can also be done by getting all 4 wheels off the ground, starting the car and engage gear...all 4 wheels should rotate. Wouldn't write off a the possibility of a wheel bearing, although unlikely as they generally don't fail without warning, but it's always possible. The car can be perfectly fine, or appear so, at an MOT and fail very soon after (just happened to my neighbours granddaughter...I found a broken rear spring days after an MOT). __________________ Current cars: 2003 V70 D5 SE (MY2004); 2012 CRV 2.0i V-TEC; Gone but not forgotten: 2001 Honda HRV; 1989 VW Polo C Mk2; 2000 Honda Civic VTi Aerodeck ; Cavalier SRi; Cavalier LX; 1971 Triumph Spitfire Mk3; 1963 Triumph Herald. Last edited by Longhouse21; May 12th, 2020 at 11:28.

May 12th, 2020, 13:46	#17
R-P Master Member Last Online: Mar 26th, 2024 14:00 Join Date: Apr 2009 Location: Rozenburg NL	What is junction scrabble? My Prius just passed MOT but I am pretty sure the front wheel bearing is shot, which I noticed within a week of the MOT. But no mention of it in the list of adviced repairs. Shot AGAIN, common problem that they only last <100k. Right bearing and it grinds when turning left, but only when going forward, strangely enough. __________________ Ex police Jan '04 V70 D5 AWD geartronic, and I've got the antenna-holes to prove it.

May 12th, 2020, 13:47	#18
barrybritcher Flaccid Member Last Online: Apr 15th, 2024 16:09 Join Date: Nov 2016 Location: Norwich	agreed with above - my wheel bearing was making a racket but wasn't detectable with the usual wheel tests. However once I got the wheel off and rotated the hub by hand you could SEE the resistance. __________________ 2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current)

May 12th, 2020, 14:01	#20
barrybritcher Flaccid Member Last Online: Apr 15th, 2024 16:09 Join Date: Nov 2016 Location: Norwich	Whip the wheel off / disc off one afternoon __________________ 2001 Volvo S60 T5 SE 2.3 Geartronic (Scrapped) 2007 Volvo S60 T5 SE 2.4 Geartronic (Sold) 2008 Volvo V70 D5 SE Sport Geartronic (Current)

May 12th, 2020, 13:56	#19
Sebastienclement New Member Last Online: Mar 8th, 2023 23:24 Join Date: Nov 2017 Location: Aylesbury	So this is where I'm at so far: On the flat I get a rotational "ssshhhhhhh" or whirring. When turning to the right that noise disappears and all is well. When travelling up hill I get the rotational clicking and it sounds really quite broken! Wheel bearing?

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