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2001 V70XC - Brake line and Caliper Service

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
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xHeart
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2001 V70XC - Brake line and Caliper Service

Post by xHeart » Sat Oct 19, 2019 2:42 pm

I'm prepared to work with the hard line and flaring, see this DIY viewtopic.php?f=1&t=32317.

The rebuilt calipers arrived. A first look at the two front wheel connections to scope out the challenge:
MVS_Brakeline_0388.jpg
MVS_Brakeline_0389.jpg
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Golden Retriever | 2014D VIDA DiCE | 2013A XC90 +140mi/225km | 2001 V70XC 1st Owner +190mi/ +305km | 1997 Volvo 850 NA 1st Owner +180mi/ +289km
Past: German Shepherd | 1989 Volvo 740 GL | 1979 Volvo 240

cn90
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Re: 2001 V70XC - Brake line and Cliper Service

Post by cn90 » Sat Oct 19, 2019 5:53 pm

Couple things:

1. Get new rubber hoses from FCPEuro. Get FTE or ATE brand, which is OEM.
Check to be sure but I think this is the hose:
https://www.fcpeuro.com/products/volvo- ... 0-30665464

2. Spray PB Blaster at the junction between the Brake Hose and the metal bolt.
Do this one week ahead of time to allow the lubricant to penetrate the threads
and you should be able to disconnect it.
Volvo uses Ni-Copp metal, so it is easier to flare than steel.
A bit of heat (propane torch right at the junction for 15-30 sec) should help.
Crack open the bleeder valve a bit to allow brake fluid to escape should you decide to use heat.

If all is well, you do NOT need to cut and flare the line.


I just replaced the 2 metal lines in my 2006 BMW X5 3.0i with 133K.
It was very challenging simply b/c I had never done brake line before.
All tips/tricks are included in this thread below...

DIY: 2006 BMW E53 X5 3.0i Brake Line Replacement
https://xoutpost.com/bmw-sav-forums/x5- ... ement.html


2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

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Re: 2001 V70XC - Brake line and Cliper Service

Post by XC70Rider » Sat Oct 19, 2019 8:46 pm

As CN90 mentioned spray the metal flare bolt daily for a week.

When I got my P2 early last year both rear calipers were seized. I decided to refresh the whole system and installed 4 new ATE calipers, 4 new ATE hoses, 4 Brembo discs, 8 Hawk ceramic pads, and 2 quarts of ATE SL6 fluid. I didn't have to put a core deposit on the calipers being they were new.

Luckily all the coated brake lines are in good shape with no rust. When I install new brake lines on vehicles I use my Mastercool hydraulic flaring kit.



cn90
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Re: 2001 V70XC - Brake line and Cliper Service

Post by cn90 » Sun Oct 20, 2019 7:57 am

Study the anatomy of brake line.
The bolt pulls the flared end down into the fitting (the fitting is part of the hose).
So when you spray PB Blaster or WD-40, spray it exactly at the junction of the bolt and the fitting.
This way the fluid gets down to the fitting threads.

I have repaired many brake lines over the years.
As long as you spray PB Blaster etc. one week ahead of time, the bolt should come out easily.

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2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

xHeart
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Re: 2001 V70XC - Brake line and Cliper Service

Post by xHeart » Sun Oct 20, 2019 5:00 pm

I have a pair of ATE hose with matching part number.
Brush cleaned the connection and treated with PB blaster - day 1, here is a pix:
MVS_Brakeline_0442.jpg
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Golden Retriever | 2014D VIDA DiCE | 2013A XC90 +140mi/225km | 2001 V70XC 1st Owner +190mi/ +305km | 1997 Volvo 850 NA 1st Owner +180mi/ +289km
Past: German Shepherd | 1989 Volvo 740 GL | 1979 Volvo 240

xHeart
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Re: 2001 V70XC - Brake line and Cliper Service

Post by xHeart » Sun Oct 20, 2019 5:10 pm

Thinking ahead, does it help to cut off the hose retainer. If so, I'd order a replacement pair.
Image


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Tonyx
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Re: 2001 V70XC - Brake line and Cliper Service

Post by Tonyx » Wed Oct 23, 2019 6:56 am

One tip I can give is that hose nut does not turn when loosening the connection. Hold it with 14mm and turn the brake tube nut with 13mm.

Somehow the 14mm hose nut is indexed into the bracket so it will not turn until the connection is fully loosened.

Looks like your car have had brake hose replaced some time ago based on the rounded fasteners shown in the photo.


2003 XC70 230K and counting..,

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Re: 2001 V70XC - Brake line and Cliper Service

Post by xHeart » Wed Oct 23, 2019 11:12 am

Tonyx wrote:
Wed Oct 23, 2019 6:56 am
One tip I can give is that hose nut does not turn when loosening the connection. Hold it with 14mm and turn the brake tube nut with 13mm.

Somehow the 14mm hose nut is indexed into the bracket so it will not turn until the connection is fully loosened.

Looks like your car have had brake hose replaced some time ago based on the rounded fasteners shown in the photo.
Good catch!
It was me, tried to do this service few years ago, but failed. Feeling better prepared now to try it again.


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Golden Retriever | 2014D VIDA DiCE | 2013A XC90 +140mi/225km | 2001 V70XC 1st Owner +190mi/ +305km | 1997 Volvo 850 NA 1st Owner +180mi/ +289km
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Re: 2001 V70XC - Brake line and Cliper Service

Post by oragex » Wed Oct 23, 2019 12:30 pm

The hardest part for me was starting the new flex line at the caliper. The threads are so fine, it's very difficult to catch the first one - and meanwhile the fluid is leaking out. Worth cleaning this area really well, and try to attach the new flex hose at the caliper first - at least just to start it, then at the bracket shown in the pics above. Also something to block the open line temporarily - perhaps a small plastic cap - to stop the fluid from leaking during this job. Of course, checking the master frequently because bleeding the air in the master is another job



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Re: 2001 V70XC - Brake line and Cliper Service

Post by cn90 » Wed Oct 23, 2019 2:10 pm

Re brake fluid dripping...

In the BMW X5 I mentioned above, I used a piece of wood to press the brake pedal halfway down. This will stop brake fluid from dripping. Good trick!
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2004 V70 2.5T 100K+
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