The Large One
Member Since: 20 Apr 2007
Location: Down the polytunnel
Posts: 6143
  
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| D4 Rear Brake Pads (Info you should read) |
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Guys
had a bulletin pop up today which i think the info should be passed on to help later down the line
it has been identified that between chassis numbers
AA513326 - AA547440 Discovery 4
There were 2 different types of brake calipers fitted to the REAR of the D4
either aluminium or cast iron (They were only fitted in pairs so you should not have mixed axles sets)
Now that on it's own is no real issue but the pads are slightly different in design meaning you need to be aware if you buy pads from a dealer as to which calipers you have and which pads to use
Cast Iron caliper uses pads
LR021316 Marked (FER4212FF)
Aluminium uses pads
LR015519 Marked (FER4258FF)
After Chassis number AA547440 they were ALL fitted with cast iron calipers
Now moving forward in vehicle ownership, and if at some point calipers need to be replaced again they recommened that THEY ARE NOT MIXED, so be warned, maybe some dealers may not pick this up so store this info in you noggin for later and question them as to whether they are aware of this.
I'm trying to up a pdf file of pictures of the 2 calipers and pads so i'll edit this post with the link in a while
http://www.disco3.co.uk/gallery/albums/use...20pads.pdf TLO has left the building.......
I no longer work for a Landrover Dealer
My little chilli sauce business http://www.thechillees.co.uk
if you would like to order anything just give me a shout
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 7th Jul 2010 9:38 am |
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MrH
Member Since: 08 Aug 2007
Location: lost in the forest
Posts: 7754
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Cheers TLO  - Just checked and the pad numbers are visible - mine are Aluminium ones.
Have printed this out and will put copy in handbook 
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| 7th Jul 2010 9:58 am |
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DiscoDad
Member Since: 06 Nov 2006
Location: Beautiful Teesdale
Posts: 3003
 
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Thanks for the heads-up.
Mine's due for it's first service soon so will make a point of mentioning it.
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| 7th Jul 2010 10:00 am |
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The Large One
Member Since: 20 Apr 2007
Location: Down the polytunnel
Posts: 6143
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MrH wrote:Cheers TLO - Just checked and the pad numbers are visible - mine are Aluminium ones.
Oh dear, the more expensive ones then  TLO has left the building.......
I no longer work for a Landrover Dealer
My little chilli sauce business http://www.thechillees.co.uk
if you would like to order anything just give me a shout
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| 7th Jul 2010 10:25 am |
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chopdogs
Member Since: 03 Mar 2010
Location: Wiltshire
Posts: 210
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TLO
Just wanted to say thanks for this info. Mine is just about to go in to have the pads done at a local garage and I was able to let them know the part numbers
Would have been highly irritating to have had them get the wrong pads and have the car in for another day whilst they sourced the correct ones.
Thanks again
chopdogs 14 Disco 4 HSE
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| 21st Apr 2011 10:55 am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
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Thanks TLO
Mine are the Aliminimum ones..... are you offering extra discount to compensate for the difference
why did LR change to Cast Iron Calipers - Am I to expect caliper problems later on in life if I have the Aliminimum ones ? Duncan
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| 21st Apr 2011 11:04 am |
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blade74
Member Since: 15 Feb 2010
Location: Sydney
Posts: 57
 
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Thanks for the info.
Does anyone know why they changed??? Disco 4 SE
Honda CRF450X
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| 15th Feb 2012 3:27 am |
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Khauff
Member Since: 05 Apr 2008
Location: Scotland
Posts: 229
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Thanks for the heads up 
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| 25th Apr 2013 6:40 am |
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outofyorkshire
Member Since: 27 Apr 2009
Location: Emigrated to Notts
Posts: 1021
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to Nick as ever
Wasn't even aware of this when I ordered my new discs & pads from him (but did give him my chassis number )
Just checked & he sent me the correct (alluminium) pads that match what I have on
He truly has magic powers Cheers Ian
___________________________________________
MY13 FL2 HSE lux - just gone
MY10 D4 XS
MY07 D3 SE
Massey Ferguson 400 FIS AGTV - Arctic Cat by any other name...
Citroen C3 Picasso for SWMBO so we can remember what fuel economy is!!
Member of the Narpy torch club
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| 25th Apr 2013 7:56 am |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072
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Thanks for the info, very important particularly if it is possible to actually fit the wrong type.
Just one point I doubt very much the callipers you call cast iron are in fact cast iron  But Cast steel. While cast iron has excellent wear properties in the apropiate situation i.e. brake disks, it has no impact strength and will shatter very easily, cast Steel has high impact and is a mutch stronger and more expensive material. Cheap spanners are made from cast steel, a spanner made from cast iron(chineese) would snap the first time it was used with force.
Hope I don't lose my discount by pointing this out  It can when others can't,
It will when others won't,
It goes where others don't.
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| 25th Apr 2013 9:43 am |
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discoteca
Member Since: 08 Mar 2010
Location: Warwickshire
Posts: 1477
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Are the different pads actually different shapes i.e. it is impossible to fit the wrong ones or is it the pad material that is different meaning that you could easily fit the wrong ones?
Are the rear discs the same on both?
How can I easily tell by looking at the calliper which one I have (my VIN is towards the end of the range that Nick says could have either fitted).
The link on the end of Nick's post which probably contains the answers doesn't seem to work for me 
Thanks
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| 8th Dec 2013 10:56 am |
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tony66
Member Since: 20 Nov 2013
Location: bog
Posts: 37
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thanks for sharing info
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| 11th Jan 2014 6:44 pm |
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KenR
Member Since: 17 Jan 2010
Location: Argyll Scotland
Posts: 329
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Many thanks for the info - on the ball as usual!!
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| 11th Jan 2014 7:04 pm |
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L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080
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I am sure the Ferrous callipers are in fact (SG) spheroidal graphite iron, which is stronger and more malleable than Grey Cast Iron (Cylinder Blocks etc) .SG will bend not fracture the same as Grey Iron. A lot of suspension arms and knuckles are SG.
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| 22nd Feb 2014 3:33 pm |
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ktm_525
Member Since: 23 Apr 2010
Location: Calgary, Alberta
Posts: 141
  
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FWIW I have the short run aluminum calipers. They accept either pad. I used some third party pads and they fit fine (Power Stop ceramic).
Damn pistons wouldn't retract though. I had to remove each and use my bench vise to get them back in.
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| 25th May 2014 12:07 am |
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