Disco 3 electronic park brake problem

[Lotusevoraboy]

Hi guys, please advise...

Disco 3 has developed a park brake fault. It started with the auto release when you set off not working and an Amber warning light coming on. An unwelcome side effect was that it was also slow to detect what gear it was in on the display on the dash and the reverse parking beepers not coming on either, presumably as it did not know it was in reverse. Last time this happened it was under warranty and it was apparently a sensor on top of the gear box that had to be replaced, meaning the (manual) gearbox and everything had to come out. We were also convinced by the main dealer that the clutch needed replacing at the time, which they did at cost with free labour as it was coming out anyway. This was about 20 months ago. It is now out of warranty by 18 months.

Today the fault has got worse, the EPB would not work at all and I had to use the manual release, using the jack handle to hook the cable loop and pulling, otherwise we'd have been stuck in a field! It is now on the drive left in gear, with no handbrake on at all. Wouldn't worry so much but it is the wife's daily driver and she is 7 month pregnant!

Has anyone else had trouble with theirs, if so, what's the problem and how much did it cost to get fixed?

[sjc]

Pop on here....
www.disco3.co.uk
Also if you have any work done, there's a mobile guy on there " 10forcash" who I can't recommend highly enough.

[camel_landy]

Due to the way the EPB works, if you get come crud in the drum, it can throw up an EPB fault quite easily. It isn't a problem if you don't use it... Just do as you have done and leave it in gear.

As for resolving, you can either book it in to the garage or tackle it yourself as it is a simple DIY job. If you tackle it yourself, you'll find a really well written guide on the Disco3.co.uk forum, giving you a step-by-step guide of resetting it all.

HTH

M

[Lotusevoraboy]

Gunna have to get it fixed, as it wont go through MOT with all those warning lights on the dash etc. Fix then sell I reckon...sick of the £500 a year road tax anyway! Ironic as with a kiddy on the way it could have been more useful than ever!

[Lotusevoraboy]

Ha ha...fixed it thanks to free advice from Roberts country vehicles!
Find a straight traffic free road
Reverse, taking foot fully off clutch until the little R appears on the dash screen
Go into first until the 1 registers on the screen on the dash
Repeat all the way through into 6th gear
Stop. Turn ignition off. Lock doors. Un lock doors. Turn ignition on.
Problem solved!

EBP auto release now fully functional and all warning lights gone. Champion!

[SpeedMattersNot]

You've essentially reprogrammed the X-Y-Z switch.

What sort of mileage have you done?

In my experience, sometimes a reprogram/recalibration will suffice, but in most cases it was due to a worn clutch, which needed replacing.

[Lotusevoraboy]

Only 62000 miles. Had the whole issue as described in the initial post once before, two years ago. Main stealer had gearbox out, flywheel and clutch repair kit also appeared on the paperwork, much of which was warranty work...surely clutch can't be on it's way again?

[davidpatterson]

Lotusevoraboy said:

Ha ha...fixed it thanks to free advice from Roberts country vehicles!
Find a straight traffic free road
Reverse, taking foot fully off clutch until the little R appears on the dash screen
Go into first until the 1 registers on the screen on the dash
Repeat all the way through into 6th gear
Stop. Turn ignition off. Lock doors. Un lock doors. Turn ignition on.
Problem solved!

EBP auto release now fully functional and all warning lights gone. Champion!

This is brilliant, I had the same problem and it worked a treat, will it happen again periodically or is that it mapped to the car?
Can anybody tell me why this works?
Apologies I am an Engineer and just need to know

[IroningMan]

I may be wide of the mark, but I think the ECU expects engine revolutions and wheel revolutions to match according to the gear selected once the clutch is engaged. Clutch slip with the clutch pedal raised - due to a poor gearchange or a worn clutch - can make it think that something's wrong and it's first port of call is to assume that the gear selection sensor - the x-y-x sensor - is telling lies.

[piecost76]

This amongst various other issues is what forced me to sell my D3.

Shame as it was atruly awesome family car but I cant yet afford a new D4 & warranty is the only way to go with these expensive toys!

I think that D3's have had their time as they are getting old tech now & things become obsolete v quickly - shame!

[IroningMan]

piecost76 said:

This amongst various other issues is what forced me to sell my D3.

Shame as it was atruly awesome family car but I cant yet afford a new D4 & warranty is the only way to go with these expensive toys!

I think that D3's have had their time as they are getting old tech now & things become obsolete v quickly - shame!

I bought my D3 at 5 years old/78k miles and put an aftermarket warranty on it that has stood me in good stead - possibly with less hassle than a LR warranty as I suspect my indy is better at diagnostics that the local dealer.

[bakerstreet]

This is fairly common from what I've read and can be fixed with a strip down of the drum and a clean out with an air line.

[Gazzab]

Bought my D3 7.5 yrs ago - yes they are relatively expensive to maintain. I let the warranty lapse and reckon I am about evens v's the cost of warranty. Still think the D3 is a great car and cant see the later LR models being much / any better in the snow and mud (but yes probably better finished and a marginally better drive). Comparing my D2 to my D3 though and I find the D2 much more challenging in the snow and ice (with the same tyres as the D3). The D3s electronics and ease of 'mode' selection really do make a huge difference (to me).

[jacklyndublin]

Thanks lotusevoraboy...did as you suggested and my disco working perfect. No more break light fault displayed ect and reverse light working again. Did this fix last or did you eventually need a new clutch?

[nf8083]

Lotusevoraboy said:

Ha ha...fixed it thanks to free advice from Roberts country vehicles!
Find a straight traffic free road
Reverse, taking foot fully off clutch until the little R appears on the dash screen
Go into first until the 1 registers on the screen on the dash
Repeat all the way through into 6th gear
Stop. Turn ignition off. Lock doors. Un lock doors. Turn ignition on.
Problem solved!

EBP auto release now fully functional and all warning lights gone. Champion!

[nf8083]

Lotusevoraboy said:

Ha ha...fixed it thanks to free advice from Roberts country vehicles!
Find a straight traffic free road
Reverse, taking foot fully off clutch until the little R appears on the dash screen
Go into first until the 1 registers on the screen on the dash
Repeat all the way through into 6th gear
Stop. Turn ignition off. Lock doors. Un lock doors. Turn ignition on.
Problem solved!

EBP auto release now fully functional and all warning lights gone. Champion!

Hi can you please explain how I need to do it
Do I need to go reverse until r appear then do I need to break and change all six gears one by one the stop
Can you please explain in detail
Because I’m struggling with my epb not working and signs on dashboard!!!
Many thanks

[Dan-nottinghan]

Lotusevoraboy said:

Ha ha...fixed it thanks to free advice from Roberts country vehicles!
Find a straight traffic free road
Reverse, taking foot fully off clutch until the little R appears on the dash screen
Go into first until the 1 registers on the screen on the dash
Repeat all the way through into 6th gear
Stop. Turn ignition off. Lock doors. Un lock doors. Turn ignition on.
Problem solved!

EBP auto release now fully functional and all warning lights gone. Champion!

You have literally made my life! Thanks so much. Worked a treat!!

[Macca17]

Thanks for posting this advice about parking brake sensor.worked a treat. Legend.

[SpeedMattersNot]

I kind of miss the sound of it failing, now. I used to hate replacing the parking brake assembly, but it was hilariously musical!

[skiddadale]

Today I had my alternator replaced with an OEM Denso unit at a decent off road land rover specialist.

All well on the way home

after a few hours, went and started it back up and got the standard HDC Fault, loads of lights issue.
I instantly thought voltage issues, however the battery is less than a year old and the alternator is new.

Check voltage on battery, around 12.4v, when engine running , around 13.8v, all looked good.

so I turned it off again, and then back on, all looked ok until I started to move, and then got parking brake issue.
After clearing the code using ODB, every time I restarted the engine, the error re-occurred. Odd, as all was ok until the new alternator, and the parking brake was actually doing what it should do.

I also noticed that when I chose a gear(manual) the display did not show the number, until I had moved along the road a little

After a little research, I found this article on re calibrating this:-

Reverse, taking foot fully off clutch until the little R appears on the dash screen
Go into first until the 1 registers on the screen on the dash
Repeat all the way through into 6th gear
Stop. Turn ignition off. Lock doors. Un lock doors. Turn ignition on.

This cured the parking brake issue, and now the display shows gear numbers as soon as you select them.

The discovery 3 sure does have some oddities and will definitely mislead you with errors thrown and lights displayed.