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Tom DCab

Member Since: 13 Jun 2013
Location: West Sussex
Posts: 33

Diagnosis for brake issues

Hello,
I am struggling to identify the cause of braking issues with my 2003 110 dcpu.

Been noticing that when starting car in the morning, I have no servo assistance on the brake pedal for perhaps 5-10 seconds, and sometimes until I have pumped pedal a bit. Seems to be getting worse over last couple of months.

Also noticed that brakes don't seem to be as effective as they were previously and braking hard at speed feels unpleasant!

Lastly, front right brake disk is worn much more than front left disk and has developed quite a lip on leading edge. Owned defender less than a year so not sure if l/hand disk was replaced - but assume that they are both same age.

Have replaced 1 rear caliper 6 months ago which was leaking fluid, and pads all round at same time.

Any advice appreciated.

Tom

21st May 2014 5:37pm

ozzy57

Member Since: 14 Feb 2014
Location: Farnborough
Posts: 221

Vacuum pipes? Vacuum pump? Either could be failing. Probably a separate issue to the uneven disc wear, which at a guess is a sticking piston somewhere in the set up. It wasn't me!

21st May 2014 6:38pm

g-mack

Member Since: 07 Jan 2014
Location: northumberland
Posts: 1967

ive just discovered my servo is letting air in. i knew the breaks were not great so sprayed the servo with water and got it very wet then switched engine off with ear near servo. sure enough i could here it sucking air and water in! ordered new one will be here tomorrow! My 109 thread

my youtube channel

21st May 2014 8:19pm

Tom DCab

Member Since: 13 Jun 2013
Location: West Sussex
Posts: 33

I will give the water spray a try..might reveal a leak if it is on the outside of servo. I understand that the diaphram inside the servo can leak too..

22nd May 2014 7:59am

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5707

2006 Defender 110 Td5 USW Zermatt Silver

Spray servo with wd40 and it will show the cracks.

Andy

22nd May 2014 8:42am

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