Removing CX-5 brake maintenance mode

[capsx002]

I’ve just changed rear pads but am struggling to get the brake out of maintenance mode. (Hold accelerator and brake off whilst operating ignition 3x) It went in to the mode ok and backed off the EPB motor. What might hold off restoring this? Piston position? Internal mechanism? When it exits does it reapply the brake - I was expecting it to. Any help appreciated.

 

[RL911]

You didn’t say, but are you putting the vehicle in accessory mode (press start button twice) before trying to take it out of maintenance mode? And to confirm, the P light is illuminated on the dash? Press down on accelerator pedal, pull up on parking brake switch (light should be flashing on that switch), press start button 3x, epb motor should reengage.

 

[N7turbo]

You may need to apply the brake pedal a few times to put some pressure back into the system. I had to do that and let the car sit for a little while before it would work.

 

[capsx002]

You didn’t say, but are you putting the vehicle in accessory mode (press start button twice) before trying to take it out of maintenance mode? And to confirm, the P light is illuminated on the dash? Press down on accelerator pedal, pull up on parking brake switch (light should be flashing on that switch), press start button 3x, epb motor should reengage.

thanks for the heads up on that but i did get it into maintenance mode easily

 

[capsx002]

You may need to apply the brake pedal a few times to put some pressure back into the system. I had to do that and let the car sit for a little while before it would work.

Thanks for this it has made the difference and its now our of maintenance mode - much obliged.
The original problem was a sticking caliper.
I had trouble bleeding the brakes thereafter with a vacuum unit and had to resort to the 2 man method where one person depresses the foot pedal to get brake fluid through? I t looks like i needed higher pressure/
I also noticed the mechanical actuator that lives inside the piston only turns approximately 3/4 of 1 turn and suspect this might be insufficient to release the caliper fully? Have you any knowledge of the number of turns I could expect?
Finally, Also the slide pins feel stiff despite being cleaned and re-greased with the grease sent with the seal kit. I tried a finer grease (Copper- ease). I might try replacing the slider pins but cannot see what the problem is except a vacuum formed by the pin/grease when pushed home needs to be overcome before they move.
The job turned into a bit of a bugger!

 

[N7turbo]

I'm not sure. When putting it back together, I found that you do not need to turn the piston, only press it in like the fronts.

And normally you use silicone grease on the pins, like Sil Glyde.

 

[RL911]

Thanks for this it has made the difference and its now our of maintenance mode - much obliged.
The original problem was a sticking caliper.
I had trouble bleeding the brakes thereafter with a vacuum unit and had to resort to the 2 man method where one person depresses the foot pedal to get brake fluid through? I t looks like i needed higher pressure/
I also noticed the mechanical actuator that lives inside the piston only turns approximately 3/4 of 1 turn and suspect this might be insufficient to release the caliper fully? Have you any knowledge of the number of turns I could expect?
Finally, Also the slide pins feel stiff despite being cleaned and re-greased with the grease sent with the seal kit. I tried a finer grease (Copper- ease). I might try replacing the slider pins but cannot see what the problem is except a vacuum formed by the pin/grease when pushed home needs to be overcome before they move.
The job turned into a bit of a bugger!

Glad you finally got it! Are you saying you tried turning the caliper piston? That should only be pushed back in like N7turbo mentions. You read so many nightmares about this job, but I just wonder how much of it is user error versus a poorly designed system.

I have not done my rear brakes on my 18 sport or 19 touring yet, but it’s in my near future at least for the 18 and I hate reading stories of trouble with the maintenance mode. It’s such a simple job with potential for big problems. I’ve done brakes and suspension work on many cars, but never one with an epb.

 

[capsx002]

Glad you finally got it! Are you saying you tried turning the caliper piston? That should only be pushed back in like N7turbo mentions. You read so many nightmares about this job, but I just wonder how much of it is user error versus a poorly designed system.

I have not done my rear brakes on my 18 sport or 19 touring yet, but it’s in my near future at least for the 18 and I hate reading stories of trouble with the maintenance mode. It’s such a simple job with potential for big problems. I’ve done brakes and suspension work on many cars, but never one with an epb.

Thanks again - i did check the piston was fully retracted when i re-assembled for the last time. i will test to make sure this is operating correctly going forward.

 

[capsx002]

I'm not sure. When putting it back together, I found that you do not need to turn the piston, only press it in like the fronts.

And normally you use silicone grease like Sil Glyde.

Thanks again - i used a silicon grease in the end since i was finding the calliper sliders were trapping air and pushing the pad against the disc too strongly for my liking although i would expect this to settle down with use. i did check the epb device was fully retracted and will have to check that this is consistent when in service. Cheers