Volvo Owners Club Forum - View Single Post - V70: Wheels/Brakes

sheaton · Apr 1st, 2019, 19:20

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.

Apr 1st, 2019, 19:20	#33
sheaton New Member Last Online: Aug 14th, 2023 13:18 Join Date: Apr 2009 Location: Leamington Spa	Steps to do the "connect 12V to the motor method". 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.