Discovery Sport Rear Disc Corrosion

PhillW2672 replied on 18/02/2019 14:11

PhillW2672

Posted on 18/02/2019 14:11

Has anyone else experienced problems with rear disc corrosion on Discovery Sport or Evoque models? I bought a new Sport in Feb 2017 and took it for its first service (2years) last week to discover it needed new rear discs. I was told this was not covered under the warranty and I am currently in a dispute about this. As I'd only done 14,000 miles from new, I thought this odd. Land Rover were not helpful and the Club knew of no problem. However, I researched this over the weekend and found a Land Rover Bulletin (LTB00990V2) listing the Evoques and Sports with a potential problem. Have given the Club the reference for this document should anyone be concerned. I had no noise or problem with the car and no message notification but at the service inspection, the pads were found to be down to the metal and the discs heavily corroded. I am concerned that I, and possibly others, could have been driving with an unknown brake problem.

36 replies

ocsid replied on 21/02/2019 10:32

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ocsid

Caravanner from Hampshire

Posted on 21/02/2019 10:32

The other Discovery models the 3 & 4 I thought featured a pad wear dash warning?

Seems remiss the Sport apparently has not this feature, where evidently through the pad material choice, wear is very high.

lornalou1 replied on 21/02/2019 11:00

lornalou1

Caravanner from Lancashire

Posted on 21/02/2019 09:08 by PhillW2672

Thanks for all the responses. Apparently, the LTB given in my earlier post has been up-dated. Haven't got a copy but the Dealer says I can view it. I guess the best advice is to have the brake pads checked regularly. I did and was surprised to find that 6mm in June 2018 went to zero by the time of the service on 13/02/19. It was this wear on the pads that scarred the discs, something to do with the light/heavy load settings, although I always adjust these for towing and non-towing. Have decided to go no longer than 3 months without having the pads checked.

Posted on 21/02/2019 11:00

never heard of anybody adjusting the load settings on their brakes as most just hitch up and drive to site and why would you anyway.

Metheven replied on 21/02/2019 14:33

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Metheven

Caravanner

Posted on 21/02/2019 10:32 by ocsid

The other Discovery models the 3 & 4 I thought featured a pad wear dash warning?

Seems remiss the Sport apparently has not this feature, where evidently through the pad material choice, wear is very high.

Posted on 21/02/2019 14:33

Sport does have wear indicators on all four wheels

Metheven replied on 21/02/2019 14:44

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Metheven

Caravanner

Posted on 21/02/2019 11:00 by lornalou1

never heard of anybody adjusting the load settings on their brakes as most just hitch up and drive to site and why would you anyway.

Posted on 21/02/2019 14:44

I think the OP is confused on the 'settings', the cause is the front to rear brake pressure balance, it prevents the oxidisation on the rear disc surfaces from fully cleaning up on brake application as should happen on all cars. The rust gets worse and the pads get scored and everything goes to pot.

The pressure balance needs re calibrating.

ocsid replied on 21/02/2019 15:06

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ocsid

Caravanner from Hampshire

Posted on 21/02/2019 14:33 by Metheven

Sport does have wear indicators on all four wheels

Posted on 21/02/2019 15:06

So, as the OP stated the pads were down to the metal this surely indicates the wear warning system had failed and taken out the discs?

In a two year old vehicle, whilst brake wear would not be a warranty backed item, the failure of the "wear indication system" surely must be, plus its direct consequences?

Metheven replied on 21/02/2019 15:16

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Metheven

Caravanner

Posted on 21/02/2019 15:06 by ocsid

So, as the OP stated the pads were down to the metal this surely indicates the wear warning system had failed and taken out the discs?

In a two year old vehicle, whilst brake wear would not be a warranty backed item, the failure of the "wear indication system" surely must be, plus its direct consequences?

Posted on 21/02/2019 15:16

LTB00990V2 is a warranty job anyway due to wrong front/rear brake pressures and as you say failure of pad warning would be under warranty also.

I stated a fact in answer to your post that all four brakes have wear sensors.

lornalou1 replied on 21/02/2019 15:27

lornalou1

Caravanner from Lancashire

Posted on 21/02/2019 14:44 by Metheven

I think the OP is confused on the 'settings', the cause is the front to rear brake pressure balance, it prevents the oxidisation on the rear disc surfaces from fully cleaning up on brake application as should happen on all cars. The rust gets worse and the pads get scored and everything goes to pot.

The pressure balance needs re calibrating.

Posted on 21/02/2019 15:27

do vehicles still have the break balance thingy what with ABS systems.

Metheven replied on 21/02/2019 15:55

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Metheven

Caravanner

Posted on 21/02/2019 15:27 by lornalou1

do vehicles still have the break balance thingy what with ABS systems.

Posted on 21/02/2019 15:55

My limited knowledge says yes, there is still a proportional percentage between front and rear with the fronts having the greater braking, the ABS still controls that percentage though.

Does that make sense

By the way, the LTB00990V2 document is where I took the explanation from regarding the rust, it's there to be read online.

lornalou1 replied on 21/02/2019 20:41

lornalou1

Caravanner from Lancashire

Posted on 21/02/2019 15:55 by Metheven

My limited knowledge says yes, there is still a proportional percentage between front and rear with the fronts having the greater braking, the ABS still controls that percentage though.

Does that make sense

By the way, the LTB00990V2 document is where I took the explanation from regarding the rust, it's there to be read online.

Posted on 21/02/2019 20:41

Thanks meth, I was asking as years ago the split was fixed at about 60/40 front/back but with cars now with huge front discs and abs I thought it might have been scrapped.

MisterBarnOwl replied on 01/03/2019 15:52

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MisterBarnOwl

Caravanner

Posted on 01/03/2019 15:52

Hi Phil,

Thanks for the notification about the possibility of rusty rear brake discs on a Land Rover Discovery Sport.

I went to see my local Land Rover dealer and told him about the brake pads and light rusty discs on my Discovery Sport (Sept 17 with 9000 miles on the clock). I had no arguments from them and they agreed to replace the lot at no extra cost.

I think it is down to the dealership and their attitude to customers in general.

I did read somewhere that unless the customer raises the problem with the dealership, nothing is done and you could be caught out.

See you next year Phil

Ian

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