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DISCO3.CO.UK > Maintenance & Mods (D4)

front brake pads
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 
front brake pads

Chaps

Do the D3 and D4 share the same front brake pads?

I know I've seen a comment from TLO about some D4's having different rear calipers, but again, are all the rear pads the same?

Cheers
Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #118649612th Nov 2013 1:30 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20855

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

2.7 D4 is the same as D3.

3.0 D4 is completely different

Thumbs Up My D3 Build Thread

TDV8 Retrofit Build Thread  
Post #118654812th Nov 2013 3:05 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

Censored - got a set of new D3 front pads in the garage - mines a 3ltr D4.

Cheers
Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #118657512th Nov 2013 4:37 pm
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john ov
 


Member Since: 24 Oct 2008
Location: kent
Posts: 928

2012 Discovery 4 3.0 SDV6 HSE Auto Sumatra BlackDiscovery 4

Fancy selling them Al Whistle  
Post #118963018th Nov 2013 9:37 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

already gone, sorry

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #118974319th Nov 2013 8:25 am
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

well, got this down to a fine art now, 45mins to change the front pads. Same type of set up as D3, but I'd say fractionally easier with the calipers being a bit bigger.

I changed the pads not so much due to wear (albeit about 3/4's worn), but to see if it fixed a weird stopping sensation. As you came to the very last part of coming to a halt, it felt like the car was braking/not braking/braking/etc, but not like when the ABS kicks in. I think its fixed, as it hasnt felt like that since Sunday when I did them. Could it have been some sort of contamination on the old pads? They looked OK.

Anybody else had this type of "fault"

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #119328726th Nov 2013 5:40 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

Chaps - need some advice - I've swapped the front pads, and whilst the feeling of braking/not braking has reduced with the new pads fitted, its still there. Its most noticable in the last few yards before you come to a complete halt. Its as though I'm gently pressing and releasing the brake pedal (so not as fast as the ABS operating), even though I've a constant pressure on the pedal. I dont think its the discs running out, as I've had that before on the D3 with some non-standard discs, and could feel this through the pedal and the steering wheel. In the current case, there is no "pulsing" felt in the pedal or the wheel.

Ideas?

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #11973904th Dec 2013 4:57 pm
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SteveNorman
 


Member Since: 14 Oct 2005
Location: Somerset
Posts: 1146

United Kingdom 

Hi Al.
I would suspect the brake discs.
Rather than being warped in the normal way, they are, for sake of simplicity of explanation, thinner in some places than others.
Look carefully at the surface and you usually see a difference in some places, hot spots, making the surface harder and softer in others.

Regards
Steve  
Post #11975784th Dec 2013 9:45 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

Cheers Steve - sounds like thats something you've seen before?

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #11977085th Dec 2013 8:25 am
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jeffersj
 


Member Since: 22 Oct 2007
Location: Near Preston
Posts: 207

England 2011 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

I think that I am having the same trouble, not always, but when braking towards roundabouts etc it feels like a slight wobble on steering something similar to (although less pronounced) a speed wobble when wheels need balancing.

Pads look OK and discs look OK on a quick examination as my first thought was warping also. Jeff

Ex 1968 Series 2A 88"
Ex TD5 Defender 90
Ex 2004 D3 XS  
Post #11977535th Dec 2013 9:51 am
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

I had disc run out on my D3. so know what this feels like. Easiest way to bring this on is at about 60, just brake very gently, and the steering wheel will wobble. As soon as you brake hard, the pads grab the disc and the wobble stops (or reduces quite a lot).

I'm not getting that on this D4, so thats why I didnt think it was runout/warped discs, but Steve is suggesting different thicknesses (a new on on me).

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #11978135th Dec 2013 11:46 am
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SteveNorman
 


Member Since: 14 Oct 2005
Location: Somerset
Posts: 1146

United Kingdom 

Yes, seen this a few times before.
Regards
Steve  
Post #11978405th Dec 2013 12:39 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

Cheer Steve - given the car's done 25k miles, the front discs dont look very worn, so my thoughts right now is that its had new discs before I brought it, but perhaps poor quality ones.

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #11980165th Dec 2013 4:20 pm
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jeffersj
 


Member Since: 22 Oct 2007
Location: Near Preston
Posts: 207

England 2011 Discovery 4 3.0 SDV6 XS Auto Fuji WhiteDiscovery 4

Al I think your description of the problem is spot on i.e. on gentle braking there is a wobble but on hard braking no problem.

Only 18k miles so discs as fitted new but seem to be the problem as Stev suggests. Jeff

Ex 1968 Series 2A 88"
Ex TD5 Defender 90
Ex 2004 D3 XS  
Post #11986256th Dec 2013 5:08 pm
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al cope
 


Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10361

England 

@jeffersj - I'd suggest that your issue is warped discs, as this is what causes the wobble. New discs should fix it (good quality ones, not cheap rubbish)

Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD  
Post #11986386th Dec 2013 5:32 pm
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