S80 AWD issue mechanical faillure

Scalix · Mar 21st, 2019, 21:00

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.

100K+ · Mar 21st, 2019, 23:09

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

Scalix · Mar 30th, 2019, 12:25

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

100K+ · Mar 30th, 2019, 22:20

Quote:

Originally Posted by Scalix

By 9v battery you mean something like this ?

yes. Thats what I used.

Cheers
Bob

jgjones095 · Mar 31st, 2019, 23:35

What’s your mileage. My xc70 had a knackered pump at 200k
Haldex filter had never need changed since 06.

Scalix · Apr 2nd, 2019, 13:25

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

Mar 21st, 2019, 21:00	#1
Scalix 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 31st, 2019, 23:35	#5
jgjones095 Master Member Last Online: Feb 28th, 2024 22:04 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

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Mar 21st, 2019, 23:09	#2
100K+ Premier Member Last Online: Today 21:03 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
Scalix 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

Apr 2nd, 2019, 13:25	#6
Scalix 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

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