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V70 electric parking brake

Help, Advice, Owners' Discussion and DIY Tutorials on the third generation Volvo V70 wagon and XC70 crossover, and second generation S80. Are you an owner? Prospective owner? Get in here and join us! Start a new topic or comment on an existing thread.

2008-2016 V70
2008-2016 XC70
2007-2016 S80

meddyliol
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meddyliol

V70 electric parking brake

Post by meddyliol » Sun Dec 19, 2010 5:14 am

Hi, I have a 2008 V70 D5 SE Lux and have been reading on the Volvo Owners Club Forum about problems with the rear brake shoes disintegrating. Does anyone know anything about this apparent problem? How does the electric brake work? Are there separate shoes as well as discs or what? The car has done 55000 miles.

Thanks in anticipation

Brian :mrgreen:


2008 V50 2.0d SE Lux Powershift

ed7
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Re: V70 electric parking brake

Post by ed7 » Sun Dec 19, 2010 9:11 am

Your car is a bit young to see the lining separation from the parking shoes. The parking shoes fit inside the hat of the rear discs. The lining typically falls off the shoe because of water saturation and rust and lack of inspection. It is not an apparent problem; you must find it before it finds you.

Ed
Last edited by ed7 on Sun Dec 19, 2010 11:30 am, edited 1 time in total.



jimmy57
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Re: V70 electric parking brake

Post by jimmy57 » Sun Dec 19, 2010 10:58 am

If you have the electric parking brake system it uses the brake pads against rotors and doe not have the drum parking brake system.
IF the EPB had an issue with shoe disintegration you should also have foot brake issues.
The EPB uses an electric motor to drive a fine thread screw that applies through caliper to backside of piston. The apply thread part floats so piston can move independent from EPB hardware. EPB is used on a number of cars now and has been problem free except when rusty calipers are thrown into the mix. Rusty calipers not having anything to do with the EPB hardware I might add, but due to salty roads in winter.



meddyliol
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meddyliol

Re: V70 electric parking brake

Post by meddyliol » Mon Dec 20, 2010 1:36 am

jimmy57 wrote:If you have the electric parking brake system it uses the brake pads against rotors and doe not have the drum parking brake system.
IF the EPB had an issue with shoe disintegration you should also have foot brake issues.
The EPB uses an electric motor to drive a fine thread screw that applies through caliper to backside of piston. The apply thread part floats so piston can move independent from EPB hardware. EPB is used on a number of cars now and has been problem free except when rusty calipers are thrown into the mix. Rusty calipers not having anything to do with the EPB hardware I might add, but due to salty roads in winter.
Thanks very much for your answer. It has put my mind at rest. I was SHOUTED at on the other forum because I said it works off disks only. Can I take it that it also works on the front as the manual states that, if it is used as a parking brake it only works on the rear. If used as an emergency brake whilst moving it operates on all four wheels until the car is almost stopped when it reverts to rear only.

I hope this makes sense

Brian :mrgreen:



San Diego Patrick
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Re: V70 electric parking brake

Post by San Diego Patrick » Mon Dec 20, 2010 1:25 pm

Along these lines...I was in the process of changing my pads and rotors on my 2008 V70 and when it came to pushing the piston back, in order to fit the new pads in....No Dice. I was told that there is a "computer release", that needed to be done by a dealer!? I called an independent repair place and they know nothing about it. Is there a special tool or computer that I need to release the piston so that I can get the new pads back in?



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Locky2001V70
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Re: V70 electric parking brake

Post by Locky2001V70 » Mon Jun 10, 2019 10:06 pm

I know that this is an old post, but Ive just had the message come up in our 08 XC70, regarding Parking Brake service required with the Brakes locked on. The parking assist service light is also on.
Luckily the car was at home and I have my '04 V70 to drive to Uni.
Just wondering if this is an expensive repair?



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vtl
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Re: V70 electric parking brake

Post by vtl » Tue Jun 11, 2019 6:51 am

Wrong forum, 08 is P3.


2005 XC70 250k
2016 XC60 40k

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abscate
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abscate

Re: V70 electric parking brake

Post by abscate » Wed Jun 12, 2019 11:10 am

Stand by for the shift.....three two one...
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW

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