New defender - braking quirk or problem?

[LouisW]

As I get more insight from this sight than the JLR service manager please help.

When I break just before reaching a halt (or when coasting) as I release pressure from the brake pedal I every now and then get a GRRRhh sound from the foot pedals and I slight vibration and give in the pedal. (Thishappens when I have the clutch in )

What is this and has anyone experienced this before.

More importantly is this a problem or a Landy quirk?

[DFR90]

Hi Louis,
I have a new 90 also, I don't experience what you are describing.
Hope this helps

[Pocket Rocket]

I have a MY15 90 too and that doesn't happen to mine.

Ask them to take it for a drive so they can see what you mean.

[Pocket Rocket]

Don't let them get away with telling you that it's 'Just Defender'

[LouisW]

I have a MY15 90 too and that doesn't happen to mine.

Ask them to take it for a drive so they can see what you mean.

They claim they can't find anything and Murphy's law when I drive it with them noting happens. Hence I am trying to find someone that has had the same symptoms and found the remedy so I can tell them what to do as they can't seem to be bothered.

[LouisW]

Don't let them get away with telling you that it's 'Just Defender'

I will get to the bottom of this. I just wish dealers where are interested in what they sell as what we are in what we drive.

[scarry]

Maybe the ABS being activated when it shouldn't be?

[loneranger]

What conditions is this happening under? Is it under heavy braking? As your cornering? Or just straight line driving?

It sounds like it could be the ABS, alternatively it could be the DSC if the wheels are trying to maintain traction. We have a roundabout near us that even at slow speeds because of the camber the DSC kicks in giving a bit of vibration when trying to accelerate. It doesn't do it with the DSC off but I can feel the wheels trying to slip. The 110 without DSC doesn't do it so I put it down to the wheelbase.

[PAT303]

The hand brake does that if it's tightened too much. Pat

[Dopey]

I have sort of the same noise and vibration, but mine comes when starting off, immediately after releasing the footbrake I get it occasionally.

Mike.

[LouisW]

What conditions is this happening under? Is it under heavy braking? As your cornering? Or just straight line driving?

It sounds like it could be the ABS, alternatively it could be the DSC if the wheels are trying to maintain traction. We have a roundabout near us that even at slow speeds because of the camber the DSC kicks in giving a bit of vibration when trying to accelerate. It doesn't do it with the DSC off but I can feel the wheels trying to slip. The 110 without DSC doesn't do it so I put it down to the wheelbase.

Straight line as I am about to stop under gentle braking

[LouisW]

Sorry to change the cause of the problem, but after playing around today it appears to be clutch related or when clutching in or out during braking that gives me this GGrrhhh noise and slight vibration.

Please help guys I don,t what the dealer to try baffle to avoid them having to do a thorough investigation.

[Pocket Rocket]

Sorry to change the cause of the problem, but after playing around today it appears to be clutch related or when clutching in or out during braking that gives me this GGrrhhh noise and slight vibration.

Please help guys I don,t what the dealer to try baffle to avoid them having to do a thorough investigation.

Sorry Louis could you explain this again? I think I may have missed the point and I'm confused.

[loneranger]

What are the engine revs showing and what gear are you in when this happens?

[LouisW]

The reves are at idle travelling below 5kmph - clutch in and I am easing off on the break pressure. Yesterday I played around and when she was in neutral and I wile breaking gently pressed and released the clutch. The noise was more frequent and I get the impression it is felt through the break but may be clutch related.

[LouisW]

What are the engine revs showing and what gear are you in when this happens?

See coment above but usually 2nd or 3rd

[quaddrive]

It sounds like the ABS modulation. I get it occasionally in my 110.

[LouisW]

It sounds like the ABS modulation. I get it occasionally in my 110.

Thanks Quaddrive. How do I confirm this and what should I do ?

[scarry]

Maybe the ABS being activated when it shouldn't be?

My thoughts as well.

As the vehicle is under warranty,you need to find a dealer that can sort your problem.

Maybe someone will chime in with one in your area that has a good reputation.

The issue needs to be sorted by LRA.

[quaddrive]

My understanding is that on occasion the wheel speed sensors pick up borderline discrepancies in wheel speed and operate the ABS just briefly.
Mine will do it occasionally when mounting a kerb etc. As long as it is only intermittent then likely there is no fault or issue.

Mine has done it once in a while for 4 years since I have had it. When I say once in a while it may be once in a month or so.

Given land rover Australia's inability to diagnose and fix simple issues I have not bothered in getting them to look at it as I doubt anything would be resolved.

My TD5 would also do it on occasion so I would say it is quite within normal operation.

Cheers

Giles

[LouisW]

My understanding is that on occasion the wheel speed sensors pick up borderline discrepancies in wheel speed and operate the ABS just briefly.
Mine will do it occasionally when mounting a kerb etc. As long as it is only intermittent then likely there is no fault or issue.

Mine has done it once in a while for 4 years since I have had it. When I say once in a while it may be once in a month or so.

Given land rover Australia's inability to diagnose and fix simple issues I have not bothered in getting them to look at it as I doubt anything would be resolved.

My TD5 would also do it on occasion so I would say it is quite within normal operation.

Cheers

Giles


Thanks Giles, makes sense. The dealer called me this morning and agreed the service manager will drive it for a few days and hopefully diagnose the problem

I will keep you posted - BTW it happens every trip this silly grinding noise when i am about to come to a halt

[Aguy]

LouisW,
Could the sound your getting be coming from the break pads?
I've had funny noises come after changing to a new set of pads and also when they are worn out (although that couldn't happen on a new car). The noises always happened with light pressure on the pads like you mentioned but had nothing to do with the clutch.
Just a thought.