The only thing that backs the pads off the rotors when you release the pedal is the square-cut on the caliper piston seal. When you press the brake, the seal deforms instead of sliding, then springs back to its normal shape when the pressure is released. That doesn't provide much force to overcome a sticky slider, and if the pad is left tight against the rotor when the car is parked, stick-tion will develop after it sits for awhile and adhere the pad to the rotor. Then you get clunking or dragging when you try to move it again.QuestMan wrote: ↑Tue Apr 19, 2022 5:18 amHmm... interesting idea, but I do not understand why does problem happen once after start but not at each brake use? Yes, one of the rubbers looked a bit defective but without cracks or any other defects, but everything was moving smoothly so I greased and assembled everything as it was. Anyway, I will replace pins and seals.
Actually they aren't. Nissan charges a crazy price for them, but the part is made in China for Bosch and you can buy new ones out of China on eBay for as little as $100 (or used ones for as little as $50). The part number is 47945-AS500 and they're a common failure point on all the vehicles which use them.
Obviously I use the Consult3+ at the shop so I'm no expert on aftermarket scanners. Someone else will have to help you out with that.
That should be correct. The ABS braking functions should still work but the VDC will be in failsafe.