Lovemyev
Distinguished Member
- Joined
- Jan 23, 2021
- Messages
- 8,127
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- Location
- N.Wales ZS EV ( Gen 2 ).
@N2STY has it absolutely nailed !.
Single acting piston, swinging calliper(s) on the rear, if I remember correctly ?.
The inner brake pad comes into contact with inner face of the disc ( rotor ) first, then the calliper upper body is pulled inboard and then outer fiction pad, then comes into contact with the outer face of the brake disc.
Therefore the inner friction pad applies pressure to the disc, slightly before outer friction pad comes into play.
This affect can be clearly seen in the pictures you have kindly provided.
The outer face of the disc has become very pitted by rust and it's decline has been quickly accelerated by a simple lack of use.
If the calliper slide mechanism is slightly sticking / seized then some binding and dragging of the pad is very common and some pad squeal can sometimes can be heard when first moving off from a rest.
Of course, these friction pads are never assembled into the callipers bodies with any anti seize lubricant at the factory.
I am willing to bet that the fiction pads will still have a fair bit of fiction material left on them, but they will be discarded if / when the new discs ( rotors ) are installed of course.
At @N2STY has been very proactive I think and checked for third party suppliers for the rear discs and pads and sounds like that the rears are not yet available.
I believe the ZS EV was the first ZS to get the electronic handbrake, prior to this I think it was a mechanical handbrake.
This MAYBE the reason why the brake disc's and pads are not YET available via third party suppliers.
This leaves a visit to the main dealer unfortunately.
Single acting piston, swinging calliper(s) on the rear, if I remember correctly ?.
The inner brake pad comes into contact with inner face of the disc ( rotor ) first, then the calliper upper body is pulled inboard and then outer fiction pad, then comes into contact with the outer face of the brake disc.
Therefore the inner friction pad applies pressure to the disc, slightly before outer friction pad comes into play.
This affect can be clearly seen in the pictures you have kindly provided.
The outer face of the disc has become very pitted by rust and it's decline has been quickly accelerated by a simple lack of use.
If the calliper slide mechanism is slightly sticking / seized then some binding and dragging of the pad is very common and some pad squeal can sometimes can be heard when first moving off from a rest.
Of course, these friction pads are never assembled into the callipers bodies with any anti seize lubricant at the factory.
I am willing to bet that the fiction pads will still have a fair bit of fiction material left on them, but they will be discarded if / when the new discs ( rotors ) are installed of course.
At @N2STY has been very proactive I think and checked for third party suppliers for the rear discs and pads and sounds like that the rears are not yet available.
I believe the ZS EV was the first ZS to get the electronic handbrake, prior to this I think it was a mechanical handbrake.
This MAYBE the reason why the brake disc's and pads are not YET available via third party suppliers.
This leaves a visit to the main dealer unfortunately.