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C30 / S40 & V50 '04-'12 / C70 '06-'13 General Forum for the P1-platform C30 / S40 / V50 / C70 models |
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Anti skid service required - fixedViews : 655 Replies : 6Users Viewing This Thread : |
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Nov 12th, 2019, 21:41 | #1 |
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Last Online: Nov 13th, 2020 17:04
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Anti skid service required - fixed
If anybody is interested I have just fixed the anti skid service required issue on my 2006 C70.
Volvo dealership quoted me £900 and my local independent Volvo specialist quoted me £600. I fixed it myself for £37 plus £50 for a Vida clone. I used Vida to identify the problem (bcm-0134 brake pressure sensor). On these units the brake pressure sensor is located within the hydraulic control unit. So I just ordered a second hand one from eBay, dismantled my ABS unit and replaced the HCU. Keeping my previous module and pump. The ABS unit is located behind the battery on the C70 II, so you have to take out the cross bar and the battery/housing to get to it. It's fairly easy to do, just the location makes it tricky to loosen and tighten everything back down. After the HCU is swapped over replace everything and bleed the brakes. Use Vida again to clear the codes and that's it. Done! Saved myself £863 from Volvo or £563 from the indie. |
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Nov 13th, 2019, 12:42 | #2 |
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Good going and congrats on the fix!
Got to wonder why Volvo don't do the same. I guess they'd only have to charge the customer £150 odd rather than £900+VAT. Bookmarked in case I ever need it, thanks.
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2006 Volvo S40 T5 SE Sport
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Nov 13th, 2019, 14:33 | #3 |
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Last Online: Sep 14th, 2021 17:03
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Blimey!
Now that's the sort of fix I like to hear of, I'm guessing you disconnect all the brake unions that come together at this unit?
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2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?) |
Nov 13th, 2019, 15:45 | #4 |
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Last Online: Nov 13th, 2020 17:04
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When I spoke to Volvo, I gave them the code I was getting and they wanted to replace the whole ABS unit and that would mean it would have to be reprogrammed to my car. The independent wanted to take my old unit out, send it to be refurbished somewhere then put it back. The independent actually told me there was no cheap option for this problem and he had 3 cars he was going to scrap because they had the same issue. Crazy!
Yeah you have to disconnect all the brake lines from the HCU. There are 6 in total. Take a picture before you do this so you can be sure they are going back in the right place. The lines do tend to stay where they are when you take the unit out so you can't really mess it up. |
Nov 13th, 2019, 15:56 | #5 |
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Any issues with venting the air out of the unit/pipes?
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2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?) |
Nov 13th, 2019, 16:08 | #6 |
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Last Online: Nov 13th, 2020 17:04
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None up to now.
There are two lines which come out the top of the unit and run along the firewall. I left the top one open at the join on the line and had the brake pumped till fluid came out, closed it up and then bled at each wheel starting with the front right. So guessing I must have pushed all the air out. |
Nov 13th, 2019, 16:26 | #7 | |
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