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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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XC70 haldex 5 demand pumpViews : 734 Replies : 6Users Viewing This Thread : |
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May 23rd, 2020, 10:14 | #1 |
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XC70 haldex 5 demand pump
Hi,
I need to change the demand pump on the haldex 5 unit on my 64 plate XC70. Has anyone done this and can tell me how much AOC oil is required to refill the unit after the pump as been replaced? I have a litre of the oil but don't want to buy more if I don't need it as it only has a 2 year shelf life. The volvo tech manual does not state the amount. Cheers |
May 23rd, 2020, 12:04 | #2 | |
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Quote:
https://m.youtube.com/watchv=r4mb-e-3r7m ...the contributor shows what he drained out at the end and doesn't appear to be more than a litre there. When you refer to the oils shelf life of 2 years, is this because it is hydroscopic? |
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May 23rd, 2020, 16:19 | #3 |
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I can’t remember exactly, but you will be fine with 1L and will have some spare. Run the haldex pump air ‘purge’ function in Vida afterwards.
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May 23rd, 2020, 18:16 | #4 |
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Thanks for the replies and the video link.
I'm guessing it is hydroscopic, the container is date stamped and states it only has a 2 year shelf life from that date. I've looked through Vida so I will purge it after then top up, cheers. |
May 24th, 2020, 09:37 | #5 | |
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Quote:
Interesting that the oil has a shelf life of 2 yrs. What's the service period for the oil change? I wonder how many cars fitted with Haldex 5 are floating around with oil past its shelf life never mind the service period. My own car had a new pump at around 48k miles. It was under warranty. It's highly likely that oil past its shelf life was contributory to the failure. |
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May 24th, 2020, 09:47 | #6 |
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How much moisture can there be in the air space above the oil in a sealed container? The manufacturer could ensure minimum humidity when bottling the oil and so I doubt that the shelf life date is due to the hygroscopic nature of the oil. It's my experience that shelf lives are often there to guarantee reordering and provide a liability loophole. Does oil in the Haldex unit get completely changed every two years?
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2012 XC70 SE Lux Polestar 230 bhp D5 Auto Oyster Grey |
May 25th, 2020, 23:33 | #7 |
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There's no oil change in the service papers. I do it anyway, both on our Haldex 4 and Haldex 5 cars.
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