powersurge
Posts: 1058
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Replacement brake pad kits

Fri May 25, 2018 5:49 am

Well, rotors DO NOT need to be changed or recut during every brake pad change. The only time you NEED to is if you let the old worn brake pads gouge the rotor surface, or if they are very scarred or there is a vibration when you brake.

Considering how gently the Leaf brakes seem to work, I don't think the car will scar or overheat the rotors enough to need change.. If you are REALLY a perfectionist, yes, you could replace the rotors during each pad change (which is a 5 minute job). And the Chinese have made rotor prices come down to $40-50 each!! CHEEP!

estomax
Posts: 177
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Leaf Number: 424033
Location: Seattle

Re: Replacement brake pad kits

Fri May 25, 2018 7:31 am

in Estonia your rotors will likely be rusted by the time the pads wear out, that has been my limited experience there anyway.

if your calipers are the same as the US Leaf, then i would just use some ceramic pads, and if the rotors are decent then keep them as is, but if they are original they might be shot from the environment anyway.

post a pic of your caliper and rotor diameter. i can measure mine to compare. Rockauto seems to only list one size/shape/mfgr date of rear pad for the Leaf.

i am really surprised that you have managed to wear through the pads though, i am at 85k km (52k miles) with my 2013 and i'm not even half way worn through. Might be the brake pad material difference in US vs UK built Leaf though.

Marko
2013 Leaf SL Premium
27k, 93% SoH 2/17 32k, 96% SoH 6/17
46k, 94% SoH 2/18 52k, 88% SoH 6/18

User avatar
EVDRIVER
Moderator
Posts: 6468
Joined: Sat Apr 24, 2010 7:51 am

Re: Replacement brake pad kits

Fri May 25, 2018 7:48 am

I can't believe people are needing pads on an EV, the brake contact on he LEAF must be more extreme than I thought, an EV of this weight should go to about 175-250K miles before needing pads. Certainly at least 100K. Even with the lower regen on a LEAF I find it surprising for lower milage replacements, certainly no one should need rotors, that should be a lifetime part on a LEAF.

arnis
Posts: 900
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Replacement brake pad kits

Fri May 25, 2018 8:12 am

I'm not planning on changing rotors prematurely. They are fine until they are not :lol:
Right now they look excellent.

It appears friction material width on the rotor is 31-32mm.
And brake pad backplate height is 105mm.

Stores have notes for some types of pads: "9/2012-2/2013" or "up to 8/2012" -both have same dimensions.
Bosch 0 986 494 090
vs
Bosch 0 986 494 857
Different price. First one has note "For AKEBONO" brakes.
Don't see pads for "3/2013 or newer".
https://photos.app.goo.gl/NioIlYH1Da4uEY6m2
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

estomax
Posts: 177
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Leaf Number: 424033
Location: Seattle

Re: Replacement brake pad kits

Fri May 25, 2018 8:35 am

EVDRIVER wrote:I can't believe people are needing pads on an EV, the brake contact on he LEAF must be more extreme than I thought, an EV of this weight should go to about 175-250K miles before needing pads. Certainly at least 100K. Even with the lower regen on a LEAF I find it surprising for lower milage replacements, certainly no one should need rotors, that should be a lifetime part on a LEAF.


the amount of grit and crap on the roads in Estonia in the winter is my guess for why these wear out more quickly. Though i don't have good examples from the midwest which get similar a climate. Or the pads are just super soft so the rotors don't wear and the pads do instead.

i'll measure mine tonight for comparisons sake, but did you check rockauto.co.uk, i had a relative order from there to Estonia a few years ago and i think it worked fine. it even shows pad dimensions in some of the pics.
https://www.rockauto.com/en/catalog/nissan,2014,leaf,0cyl+electric,3310372,brake+&+wheel+hub,brake+pad,1684

Marko

edit, pics from mine as promised:
https://photos.app.goo.gl/uaR6a1qcmy4mOdp52
pad is 106mm tall which lines up exactly with what rockauto wants to sell.
2013 Leaf SL Premium
27k, 93% SoH 2/17 32k, 96% SoH 6/17
46k, 94% SoH 2/18 52k, 88% SoH 6/18

garsh
Posts: 1137
Joined: Sat Feb 12, 2011 5:27 am
Delivery Date: 05 Apr 2012
Location: Pittsburgh PA

Re: Replacement brake pad kits

Sat May 26, 2018 1:26 am

EVDRIVER wrote:I can't believe people are needing pads on an EV, the brake contact on he LEAF must be more extreme than I thought, an EV of this weight should go to about 175-250K miles before needing pads. Certainly at least 100K. Even with the lower regen on a LEAF I find it surprising for lower milage replacements, certainly no one should need rotors, that should be a lifetime part on a LEAF.
As the battery degrades, Nissan *severely* cuts back the regen on the car. My car barely regens at all now, unless the conditions are ideal, and even then it doesn't regen as strongly as it did when new.

It is very disappointing.
2012 Black SV, 7 bars, 100,000 miles

arnis
Posts: 900
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Replacement brake pad kits

Sun May 27, 2018 4:21 am

garsh wrote:As the battery degrades, Nissan *severely* cuts back the regen on the car. My car barely regens at all now, unless the conditions are ideal, and even then it doesn't regen as strongly as it did when new.

It is very disappointing.


This doesn't apply to newer model made since 2013.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
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garsh
Posts: 1137
Joined: Sat Feb 12, 2011 5:27 am
Delivery Date: 05 Apr 2012
Location: Pittsburgh PA

Re: Replacement brake pad kits

Mon May 28, 2018 2:30 am

arnis wrote:This doesn't apply to newer model made since 2013.

What year do you have?
And how many bars down is it?
2012 Black SV, 7 bars, 100,000 miles

arnis
Posts: 900
Joined: Sat Jan 23, 2016 3:21 pm
Delivery Date: 23 Jul 2014
Leaf Number: 015896
Location: Estonia, Europe

Re: Replacement brake pad kits

Mon May 28, 2018 10:00 am

2014 June. 118 000km, 90% SOH, no bars lost.
Short range EVs <30kWh -- Medium range: 30-60kWh -- Long range: >60kWh
Charging: Trickle <3kW -- Normal 3-22kW -- Fast 50-100kW -- Supercharging >100kW

GerryAZ
Gold Member
Posts: 1829
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Replacement brake pad kits

Mon May 28, 2018 11:36 am

My experience from driving the 2011 for 50,422 miles and the 2015 for 62,073 miles (and counting) is that regeneration (and DCQC charging rate) is limited strictly by the highest cell-pair voltage (and possibly overall pack voltage). The LBC (lithium battery controller) limits the regeneration to keep the highest cell-pair voltage below a threshold so the amount of regeneration drops as the battery deteriorates because the internal resistance increases. The 2015 has lower internal resistance now after over 3 years than the 2011 had in the fall of 2012 after 17 months of use so it has not experienced the dramatic loss of regeneation that I saw with the 2011. Regeneration in the 2011 was restored when the battery was replaced in October 2013, but was already dropping at cooler temperatures by the time the car met its demise in January 2015. Even with reduced regeneration, the original brake pads on the 2011 were still in excellent condition when it was rear-ended while stopped at a traffic light on January 4, 2015. The 2015 still has full regeneration after only 2 or 3 miles of driving in the morning after L2 charging to 100% overnight. I always charge fully overnight and drive in B-mode.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

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