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Old Jul 12th, 2019, 11:55   #3
johncrwales
John
 

Last Online: Aug 3rd, 2023 19:34
Join Date: Mar 2017
Location: Llanrhaeadr ym Mochnant
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Hi Frank. I have a 2009 XC90 that I plan to keep for a while yet; mileage now 208,000. I was hearing faint bearing noises from the rear. I had used the local dealer up to now. They pronounced that I needed a new Haldex unit; that'll be £3,400+ thank you! No Thank You!
I have finally found an experienced local independent whose philosophy is repair where possible. He had a careful listen with a stethoscope and said that the noise was from the differential. This has proved to be so, and the old differential fell apart when he was getting the gears out, suggesting a hairline crack that might have gone any time. The Haldex unit was fine, and he changed the oil and filter.
Anyway, the point of the post is that he says that Volvo have no schedule for servicing Haldex units. He says this is crazy as the oil gets dirty over time and loses efficiency. He says that the Haldex units should be serviced every 50,000 miles, with a filter and oil change. This makes a lot of sense.
Regards, John
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