DEMs can be reused from scrap cars

Gazdok · Jul 23rd, 2011, 21:30

After continuing problems with my AWD and no real solution even with different Volvo dealers tried I got fed up and bought a whole AOC unit complete from a scrap yard.

It was correct for my MY and the Haldex generation.

It was easy to replace and it worked straight away even without software reload.

Contrary to VOLVO advice that DEMs cannot be reused THEY CAN BE REUSED!!

This is equivalent to a cost saving of more than £1100 plus labour if you only change the DEM or £2500+ for a used AOC unit.

rnlisg · Dec 26th, 2011, 10:20

hi gadzok
sorry to ask what is probably a daft question,but what are "aoc,s and dem,s"?
i am new to the xc70 cross country and loving it,but am curious.
cheers
sandy

Gazdok · Dec 30th, 2011, 20:13

Quote:

Originally Posted by rnlisg

hi gadzok
sorry to ask what is probably a daft question,but what are "aoc,s and dem,s"?
i am new to the xc70 cross country and loving it,but am curious.
cheers
sandy

AOC - Active on Demand Coupling. Quoted Cost ~ £1800
DEM - Differential Electronic Module. Quoted Cost £1200 - £1500

Both are part of Volvo AWD systems.

bigtree · Jan 8th, 2012, 17:52

DEM can also be repaired, probably, BBA Rman - http://www.bba-reman.com/catalogue/D...edProduct=2213

Gazdok · Jan 9th, 2012, 12:32

Quote:

Originally Posted by bigtree

DEM can also be repaired, probably, BBA Rman - http://www.bba-reman.com/catalogue/D...edProduct=2213

After Volvo told me my DEM was faulty and it could definitely only be fixed with a new one, I sent my old DEM to BBA.
BBA-reman returned it "checked and no fault detected". The fault still continued.

I now have a donor DEM on my car.
No software download required either.

bigtree · Jan 18th, 2012, 19:47

Sorry it didn't work out, was the new DeM easy to find and a reasonable price?

Gazdok · Jan 20th, 2012, 00:16

I rang several scrapyards and eventually got a whole AOC unit with DEM, pump and presssure sensor from volvopartsuklimited@yahoo.co.uk. I also used partsgateway for offers.
Volvopartsuk claimed that they had several in stock. I spoke to Pete Tonge. He had more knowledge of these than I had found with Volvo dealerships.

I paid £300 + VAT.

Jul 23rd, 2011, 21:30	#1
Gazdok Master Member Last Online: Dec 31st, 2023 11:17 Join Date: Mar 2009 Location: Wigston	DEMs can be reused from scrap cars After continuing problems with my AWD and no real solution even with different Volvo dealers tried I got fed up and bought a whole AOC unit complete from a scrap yard. It was correct for my MY and the Haldex generation. It was easy to replace and it worked straight away even without software reload. Contrary to VOLVO advice that DEMs cannot be reused THEY CAN BE REUSED!! This is equivalent to a cost saving of more than £1100 plus labour if you only change the DEM or £2500+ for a used AOC unit.

Dec 26th, 2011, 10:20	#2
rnlisg Senior Member Last Online: Jun 8th, 2020 15:43 Join Date: Oct 2011 Location: lydd/kent	what are they? hi gadzok sorry to ask what is probably a daft question,but what are "aoc,s and dem,s"? i am new to the xc70 cross country and loving it,but am curious. cheers sandy

Jan 8th, 2012, 17:52	#4
bigtree Not so Junior Member Last Online: Jun 21st, 2015 19:43 Join Date: Jul 2007 Location: Birmingham	DEM can also be repaired, probably, BBA Rman - http://www.bba-reman.com/catalogue/D...edProduct=2213 Last edited by bigtree; Jan 8th, 2012 at 18:47.

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Jan 18th, 2012, 19:47	#6
bigtree Not so Junior Member Last Online: Jun 21st, 2015 19:43 Join Date: Jul 2007 Location: Birmingham	Sorry it didn't work out, was the new DeM easy to find and a reasonable price?

Jan 20th, 2012, 00:16	#7
Gazdok Master Member Last Online: Dec 31st, 2023 11:17 Join Date: Mar 2009 Location: Wigston	I rang several scrapyards and eventually got a whole AOC unit with DEM, pump and presssure sensor from volvopartsuklimited@yahoo.co.uk. I also used partsgateway for offers. Volvopartsuk claimed that they had several in stock. I spoke to Pete Tonge. He had more knowledge of these than I had found with Volvo dealerships. I paid £300 + VAT.

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