|
AWD Discussion A forum dedicated to the AWD systems fitted to Volvo cars. |
Information |
|
S80 AWD issue mechanical faillureViews : 3411 Replies : 11Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Mar 21st, 2019, 21:00 | #1 |
Junior Member
Last Online: Mar 29th, 2020 11:24
Join Date: Aug 2018
Location: Shrophire
|
S80 AWD issue mechanical faillure
Good evening All,
I have a VIDA message saying mechanical faillure of the oil pump. No pressure actuator sliping (something like that) 2000 miles ago the AWD of the car was working fine on gravel. No idea if the message was already there. I changed the filter and the oil but still the same DTC message and no AWD. When the car in P position I can't move the prop shaft or rear wheel shaft. What can be the problem ? faulty pump ? faulty sensor ? Thanks for the help. |
Mar 21st, 2019, 23:09 | #2 |
Premier Member
Last Online: Yesterday 21:37
Join Date: Aug 2008
Location: Newcastle
|
What is the actual DTC code?
You can check whether or not the haldex oil pump is working by removing electrical connector and connecting a 9v radio battery across the terminals. You should be able to hear the pump. You can also get live data via VIDA/DICE of some haldex/dem conponents. As you cant rotate propshaft it would suggest issue is in the Haldex unit/components or the DEM. Cheers Bob |
Mar 30th, 2019, 12:25 | #3 |
Junior Member
Last Online: Mar 29th, 2020 11:24
Join Date: Aug 2018
Location: Shrophire
|
Thanks for the reply. I was abroad. I will have a look tomorrow.
By 9v battery you mean something like this ? DV019_Jpg_Regular_424922_single_above_R.jpg Thanks |
Mar 30th, 2019, 22:20 | #4 |
Premier Member
Last Online: Yesterday 21:37
Join Date: Aug 2008
Location: Newcastle
|
|
Mar 31st, 2019, 23:35 | #5 |
Master Member
Last Online: Apr 29th, 2024 14:20
Join Date: Feb 2013
Location: South wales
|
What’s your mileage. My xc70 had a knackered pump at 200k
Haldex filter had never need changed since 06.
__________________
Who said Volvos were build to last? 2.4t V70XC Auto 2001 165k D5 185 XC70 M66 2006 202k |
Apr 2nd, 2019, 13:25 | #6 |
Junior Member
Last Online: Mar 29th, 2020 11:24
Join Date: Aug 2018
Location: Shrophire
|
I have 71000 miles. I noticed the AWD stop working arround 70000 miles so I decided to change oil and filter. The oil was black but not too bad. Changing oil and filter didn't solve the problem.
I will try to have a go with the 9V battery |
Apr 3rd, 2019, 12:17 | #7 |
Bungling Amateur
Last Online: Yesterday 23:29
Join Date: Aug 2014
Location: Beverley, East Yorks
|
It's likely the pump in the AOC coupling, probably the most common failure of them. You should have an error on the dash.
Testing the pump with a 9v battery will tell you if there have been an electrical failure but not mechanical. Get the oil and filter changed at the same time as the pump.
__________________
2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
Apr 7th, 2019, 17:58 | #8 |
Junior Member
Last Online: Mar 29th, 2020 11:24
Join Date: Aug 2018
Location: Shrophire
|
Thanks for the help all.
So i had a look and... The error code is DEM-P188974 The pump works with the 9v battery and i can reach a pressure of 0.18MPa on VIDA. I can also activate the pump with VIDA. I can ear it however the pressure goes up to 0,15mpa. The pump start for 2 seconds and stop. This is normal ? Last edited by Scalix; Apr 7th, 2019 at 18:09. |
Apr 25th, 2019, 22:51 | #9 |
Junior Member
Last Online: Mar 29th, 2020 11:24
Join Date: Aug 2018
Location: Shrophire
|
Any idea ? Or lead so i can have a look at ?
Thanks |
Apr 28th, 2019, 10:44 | #10 |
Premier Member
Last Online: Yesterday 21:37
Join Date: Aug 2008
Location: Newcastle
|
look here -
https://forums.swedespeed.com/showth...ue-DEM-P188974 issue appears to be pressure switch inside the DEM Good luck Cheers Bob Last edited by 100K+; Apr 28th, 2019 at 10:48. |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|