brake pads replacement rear F Type R 2016 How To
Veteran Member
Joined: Feb 2014
Posts: 9,027
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From: Adelaide, South Australia
Hi all,
I'm trying to install my rear Porterfield pads and the rear caliper will not budge inwards. Does anyone know of something that I may be doing incorrectly? I've used the technique above to release by electronic parking brake which allowed me to remove the caliper, but now I cannot get the new thicker pads in place.
I'm trying to install my rear Porterfield pads and the rear caliper will not budge inwards. Does anyone know of something that I may be doing incorrectly? I've used the technique above to release by electronic parking brake which allowed me to remove the caliper, but now I cannot get the new thicker pads in place.
You probably still need to push the brake piston back all the way in (I think just invoking the Maintenance mode doesn't quite do this), one easy way to do this is with a G clamp and a piece of metal or old brake pad covering the piston.
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Joined: Aug 2008
Posts: 1,816
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From: SF Bay Area
I'm guessing you mean the rear brake piston (not caliper) will not budge inwards.
You probably still need to push the brake piston back all the way in (I think just invoking the Maintenance mode doesn't quite do this), one easy way to do this is with a G clamp and a piece of metal or old brake pad covering the piston.
You probably still need to push the brake piston back all the way in (I think just invoking the Maintenance mode doesn't quite do this), one easy way to do this is with a G clamp and a piece of metal or old brake pad covering the piston.
Hi all,
I'm trying to install my rear Porterfield pads and the rear caliper will not budge inwards. Does anyone know of something that I may be doing incorrectly? I've used the technique above to release by electronic parking brake which allowed me to remove the caliper, but now I cannot get the new thicker pads in place.
I'm trying to install my rear Porterfield pads and the rear caliper will not budge inwards. Does anyone know of something that I may be doing incorrectly? I've used the technique above to release by electronic parking brake which allowed me to remove the caliper, but now I cannot get the new thicker pads in place.
Last edited by Unhingd; Nov 10, 2018 at 02:38 AM.
Junior Member
Joined: Nov 2018
Posts: 3
Likes: 0
From: Mesa, AZ
Ok I got the Porterfield R4S rear pads changed today. My car has 3400 miles. I didnt like the amount of dust from the OEM.
AP1750 FRONT 380MM
AP1753 REAR 376MM
Directions:
1/ Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off/on and release accelerator and hand brake button. Dash should now read Brake Maintenance Mode. This retracts the EPS motors to allow you to push the piston back in. No tools needed.
2/ Remove wheel, clean wheel and caliper.
3/ Tie the caliper with wire to the upper suspension arm see pic.
4/ Undo 2X 15mm bolts and swing the caliper out, protect with a rag.
5/ Now push the piston back in with the old pads in place. It moves fairly easy.
6/ Remove the outside pad first with a flat head screw driver.
7/ Remove the inside pad and with a small flat head screw driver pry off the wear sensor from the bottom edge (passenger side only USA). Clean caliper,
8/ Compare your new pads with the old ones to make sure they are an exact match.
9/grease the back of the new pads with anti squeal grease only on the contact points.
10/ Replace the outside pad first. They push in easy or use pliers to compress the little spring clip on the pad.
11/ Install the inside pad. Put a bit of wood between the pads to hold in place makes it easier to compress that spring clip and push into place.
12/ Put caliper on disc, replace both 15mm bolts torque to 115Nm/85ft lbs
13/ Attach the wear sensor wire, it just pushed on the piston side pad.
14/ Take the car out of brake maintenance mode. Ignition on, pull the hand brake button up and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off/on and release accelerator and hand brake button. Dash should now clear Brake Maintenance Mode.
Done 40min a side. First will take the longest, so start on the drivers side i.e side with no sensor. Much easier that the fronts that I also did a write up for.
AP1750 FRONT 380MM
AP1753 REAR 376MM
Directions:
1/ Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off/on and release accelerator and hand brake button. Dash should now read Brake Maintenance Mode. This retracts the EPS motors to allow you to push the piston back in. No tools needed.
2/ Remove wheel, clean wheel and caliper.
3/ Tie the caliper with wire to the upper suspension arm see pic.
4/ Undo 2X 15mm bolts and swing the caliper out, protect with a rag.
5/ Now push the piston back in with the old pads in place. It moves fairly easy.
6/ Remove the outside pad first with a flat head screw driver.
7/ Remove the inside pad and with a small flat head screw driver pry off the wear sensor from the bottom edge (passenger side only USA). Clean caliper,
8/ Compare your new pads with the old ones to make sure they are an exact match.
9/grease the back of the new pads with anti squeal grease only on the contact points.
10/ Replace the outside pad first. They push in easy or use pliers to compress the little spring clip on the pad.
11/ Install the inside pad. Put a bit of wood between the pads to hold in place makes it easier to compress that spring clip and push into place.
12/ Put caliper on disc, replace both 15mm bolts torque to 115Nm/85ft lbs
13/ Attach the wear sensor wire, it just pushed on the piston side pad.
14/ Take the car out of brake maintenance mode. Ignition on, pull the hand brake button up and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off/on and release accelerator and hand brake button. Dash should now clear Brake Maintenance Mode.
Done 40min a side. First will take the longest, so start on the drivers side i.e side with no sensor. Much easier that the fronts that I also did a write up for.
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Joined: May 2012
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From: Boston, MA USA
Disconnect the plug for each sensor and test continuity of the sensor with a multimeter. They are closed loop of wire so should have almost no resistance. I think you'll find one has a break somewhere and shows a resistance of 1.
If not, then try cleaning contacts and plugging them back in again
If not, then try cleaning contacts and plugging them back in again
Veteran Member
Joined: Feb 2014
Posts: 9,027
Likes: 3,662
From: Adelaide, South Australia
If working on the rear brakes in maintenance mode I would chock both front tyres with one chock in front and the other behind.
I don't know for sure but as maintenance mode applies only to the rear brakes and specifically the EPB I reckon the front brakes will still work as normal.
If working on the rear brakes in maintenance mode I would chock both front tyres with one chock in front and the other behind.
If working on the rear brakes in maintenance mode I would chock both front tyres with one chock in front and the other behind.
Junior Member
Joined: May 2021
Posts: 17
Likes: 3
From: Arizona
can anyone tell me if it the same procedure for a 2015 F-Type R, i can seem to be able to get into maintenance mode at all.
1/ Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off/on and release accelerator and hand brake button.
Dash should now read Brake Maintenance Mode. This retracts the EPS motors to allow you to push the piston back in. No tools needed.
1/ Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off/on and release accelerator and hand brake button.
Dash should now read Brake Maintenance Mode. This retracts the EPS motors to allow you to push the piston back in. No tools needed.
Junior Member
Joined: May 2021
Posts: 17
Likes: 3
From: Arizona
never mind i figured out what i was doing wrong (turn ignition off and then back on)
Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off and then back on and release accelerator and hand brake button. Dash will then show Brake Maintenance Mode.
This retracts the EPS motors to allow you to push the piston back in. No tools needed
Take the car out of brake maintenance mode. Ignition on, pull the hand brake button up and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off and then back on and release accelerator and hand brake button.
Dash will no longer show Brake Maintenance Mode.
Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off and then back on and release accelerator and hand brake button. Dash will then show Brake Maintenance Mode.
This retracts the EPS motors to allow you to push the piston back in. No tools needed
Take the car out of brake maintenance mode. Ignition on, pull the hand brake button up and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off and then back on and release accelerator and hand brake button.
Dash will no longer show Brake Maintenance Mode.
Junior Member
Joined: Jan 2023
Posts: 7
Likes: 2
Put the car in brake maintenance mode. Ignition on, push the hand brake button down and hold for 2 secs, press accelerator to the floor and hold 2 secs turn ignition off and then back on and release accelerator and hand brake button. Dash will then show Brake Maintenance Mode.
Do you leave ignition on or once it goes into Maintenance Mode, the car will shut off?
I also read where people removed the caliper then the Maintenance Mode went off pushing the piston from the caliper, once in Maintenance Mode do you need to disconnect the wires to the EPB at the caliper?
Do you leave ignition on or once it goes into Maintenance Mode, the car will shut off?
I also read where people removed the caliper then the Maintenance Mode went off pushing the piston from the caliper, once in Maintenance Mode do you need to disconnect the wires to the EPB at the caliper?
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Joined: May 2013
Posts: 7,017
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From: Metrowest Boston
The directions are in this doc. I assume it will stay in maintenance mode when you turn the ignition off, because there are also directions for deactivating maintenance mode. This doc also has lots of interesting info on the EPB (hi-temperature reclamation, etc.)
https://www.dropbox.com/s/uajlxghl1a...brake.pdf?dl=0
https://www.dropbox.com/s/uajlxghl1a...brake.pdf?dl=0
