V70: Wheels/Brakes How to: Manual EPB removal/wind off

[cdp8]

Macs, I can't thank you enough. I disassembled everything, unplugged then plugged in the connector, put everything back together and it worked fine.

Thank you, thank you, thank you.

[I-S]

I'll see if I can get the original post edited to reflect the importance of unplugging it. Thanks for the feedback - I had no idea that could happen.

[macs]

glad you got it sorted cdp8

[organgrinder]

Hi Isaac,
Terrific pics and guide.
I have a 13 plate XC60 (38K) and am proposing to replace the rear disks and pads. I've done tons of jobs like this. Is replacing the disk easy once the caliper is off?
I am impressed that the electronic parking brake can be wound back manually.
I notice you are in Hudds - excellent. I can get pads and disks from a reputable factor in HD for £100 inc VAT!!!! I've had a price from Volvo!!!
Any more tips in particular the EPB wind back and any torque values for the bolts.
Carry on the excellent work,

Brian

[organgrinder]

more on XC60 rear pads

[Daftnick]

I just bought one for doing the rear pads on my xc70 2010 reg. £45 from fleabay. Connects to ECU but brake deactivate or activate commands give link error. Same error on my neighbours car too. No online upgrades or support so maybe a bin job. Unless someone on the forum has any ideas. The fleabay seller says to try a third car and also suggests I get the EP31 repaired locally. (You couldn't make this up):speechless

[sheaton]

I just replaced my rear pads using the "connect 12V to the motor method".

Here is the detail:

Rear brake pads – Volvo with EPB (Electronic Parking Brake)

Leave handbrake on

Jack up and remove rear roadwheel

Remove slider bolts (13mm & 15mm spanners)

Remove EPB motor plug by puling upwards. This is the most difficult bit. You will need to slide a small screwdriver upwards into the latching mechanism at the rear of the connector. Keep the tip of the screwdriver in contact with the body of the connector (the bit which is part of the motor), whilst sliding it up. The tip of the screwdriver will gently prise away a latch, which is part of the connector on the end of the cable, away from a projection on the body of the connector.

Power motor release using a 9V or 12V battery. Drivers side forward most pin negative to release (passenger side is the opposite). The motor runs for about 18seconds if the pads are fully worn out.

Pull off carrier, pads and slider shoes

Replace shoes (if one is rubber coated, fit this to the upper part of the caliper)

Put a small amount of silicone grease on pad parts which touch the slider.

Use Sealey tool to retract piston slowly (don’t turn the piston, just push it back slowly). Keep an eye on the master cylinder level to make sure it doesn’t overflow.

Put caliper back. Replace slider bolts.

Power motor in reverse (reverse the polarity of the wiring) to seat piston (about 3sec).

Press brake pedal to seat pads.





The worst part is releasing the plug from the EPB. It is probably woth repeating that bit (I broke the first connector before realising this).

The part of the connector which is fixed to the motor body has a small projection (like a ski ramp) on the back. The free part of the connector which is on the cable has a clip which rides up the ramp when the connector is pushed home, until clip reaches the end of the ramp and drops drops off the end, so clipping it in place securely.

To release it, you need to insert the screwdrive upwards (running it close to the body of the fixed part of the connector). As you do this, it will lift the clip away from the end of the ramp, and so allow you to pull the connector off.

[th68]

Rear brake pads – Volvo with EPB (Electronic Parking Brake)

Leave handbrake on

Thanks for your post! I am about to change the rear disks and the pads on my 2008 Volvo V70 and I am still a bit confused. I'd be grateful, if you/anyone could answer my questions:

1. What is the reason for leaving the handbrakes on? I have watched/read a few instructions and have not heard of that before.
2. Why release the plug from the EPB? I read in one comment that this avoids problems with the motor, but this does not explain why releasing the plug helps.
3. If I rewind manually, do I need to release the plug? Why use the "connect 12V to the motor method", if rewinding is so easy?

Thanks a lot for reading (and hopefully answering) my questions!

[green van man]

Originally Posted by th68

Rear brake pads – Volvo with EPB (Electronic Parking Brake)

Leave handbrake on

Thanks for your post! I am about to change the rear disks and the pads on my 2008 Volvo V70 and I am still a bit confused. I'd be grateful, if you/anyone could answer my questions:

1. What is the reason for leaving the handbrakes on? I have watched/read a few instructions and have not heard of that before.
2. Why release the plug from the EPB? I read in one comment that this avoids problems with the motor, but this does not explain why releasing the plug helps.
3. If I rewind manually, do I need to release the plug? Why use the "connect 12V to the motor method", if rewinding is so easy?

Thanks a lot for reading (and hopefully answering) my questions!

1 Leave it on makes getting the wheel off easier.

2 If useing the pp3 or 12v battery method you need access to the terminals.

3 Removing the motor and useing the manual rewind method has its difficulties, notably the very real risk of stripping the torx head in the small retaining screws if they are siezes.
Yes I found out the hard way, got one out no problem the second the head stripped with only moderate preasure. I left it there and used the pp3 battery method as it's going to be a caliper off job to get at it to remove and previous experiance with volvo brake couplings will mean cutting and reflareing the pipe with a new coupling. At some point I will need to do it but as it was a quick pad change I left it for next time .

There is also the risk of damageing the O ring seal that stops the road crud and water getting in there.

I have vida dice and it can be done with that IF you can remember how and the laptop is charged. The pp3 battery is just so simple it's my go to method.

Paul.