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MOT question and probably a stupid one

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Philip1972

Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072

2011 Discovery 4 3.0 SDV6 GS Auto Zermatt Silver

MOT question and probably a stupid one

Sitting at my desk today bored out my tree, I wondered how they test the handbrake on the Disco 4?

I have only ever seen rollers for 2 wheels (1 axle) and then they spin the rear wheel and apply the handbrake-test complete.

But the Disco is 4 wheel drive so that wont work, and if you drive it down the road and pull the brake button, I think it applies all the brakes?

So please educate me-I am stumped

4th Apr 2019 6:54 pm

gstuart

Member Since: 21 Oct 2016
Location: kent
Posts: 13655

2005 Discovery 3 TDV6 Base 7 Seat Auto Java Black

Hi

http://www.mot-test.net/mock-test/brakes/

Think they also use a decelerometer device

A tapley meter comes to mind

Know that’s not much help

4th Apr 2019 6:56 pm

gstuart

Member Since: 21 Oct 2016
Location: kent
Posts: 13655

Hi

Just found this , however it mentions rollers and know I wouldn’t allow mine to be put on a 2WD roller

Don’t know if there’s a special way to allow for this test ???

http://mtaeta.info/board/67/land-rover-vsi

As of 27th April 2017 no VSI is availible for this vehicle :

Testing the EPB with a decelrometer is not suitable

The EPB requires testing in the brake rollers as follows:

noteNOTE: To carry out the electric park brake (EPB) rolling brake test, the following requirements must be observed:

The ignition is turned ON, but the engine is NOT running
The front wheels are stationary
The rear wheels must be driven for a minimum of 5 seconds at a constant speed between 1.5 and 5.5 mph (2.5 and 9 km/h)
All vehicles
Position the vehicle on the rolling brake tester.
Vehicles with automatic transmission
noteNOTE: The following step must be carried out to allow 10 minutes before the transmission returns to auto park.

Turn the TCS to the NEUTRAL position and turn the ignition OFF.
Turn the ignition ON.
All vehicles
cautionCAUTION: Make sure that the front wheels are stationary.

noteNOTE: The EPB warning indicator will illuminate to confirm the vehicle is in the inspection mode.

Once the vehicle is moving on the rolling brake tester at a speed between 1.5 and 5.5 mph (2.5 and 9 km/h), the inspection mode is activated.
NOTES:

noteThe parking brake will be applied in increments.

noteIf the EPB switch is applied more than 4 times, no further increments of application to the parking brake force will occur.

Apply and release the EPB switch 4 times in succession.
Release the EPB switch.
Remove the vehicle from the rolling brake tester.

This is the official procedure supplied from Land Rover( at a cost subscription only ) which has been copied and pasted by me from the workshop manual,please print or save it somewhere in the event one of these vehicles is presented for test

://topix.landrover.jlrext.com/topix/user/loginForm
I might not be the best,but i was always in the top one
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Last edited by gstuart on 4th Apr 2019 7:28 pm. Edited 2 times in total

4th Apr 2019 7:13 pm

Windy Corner

Member Since: 23 Feb 2009
Location: South Leicestershire
Posts: 484

2012 Discovery 4 3.0 SDV6 HSE Auto Baltic Blue

Wouldn't let mine near a roller

The place I use, put a decelerometer on the footwell floor and run up and down the car park testing both park brake and service brakes

Rik Discovery 4 HSE SDV6 Baltic Blue
Discovery 3 S TDV6 Zambezi Silver - Now gone........
Leicestershire & Rutland 4x4 Response

4th Apr 2019 7:24 pm

gstuart

Member Since: 21 Oct 2016
Location: kent
Posts: 13655

Hi

Plus 1 , thks as I couldn’t think of the name at first what they place on the floor to test the brakes

4th Apr 2019 7:30 pm

Philip1972

Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072

Windy Corner wrote:
Wouldn't let mine near a roller

The place I use, put a decelerometer on the footwell floor and run up and down the car park testing both park brake and service brakes

Rik

I thought that, but when you pull the parking brake on the move, it puts all the brakes on...

4th Apr 2019 7:42 pm

rrhool

Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4400

2007 Discovery 3 TDV6 SE Manual Zermatt Silver

Quote:
I thought that, but when you pull the parking brake on the move, it puts all the brakes on...

Not unless you've got special brakes! Rear wheels only

Richard

D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.

Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone

4th Apr 2019 7:47 pm

Philip1972

Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072

Thats me corrected then!

Thank you for the info

4th Apr 2019 7:55 pm

hugeviking

Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482

2006 Discovery 3 TDV6 S Manual Cairns Blue

Actually I think you are right. I am sure that if you apply the handbrake whilst moving, it acts as an emergency brake on all wheels.

Andi.

4th Apr 2019 8:58 pm

Hardware

Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12709

2011 Discovery 4 3.0 SDV6 XS Auto Sumatra Black

you hold it up for 5 seconds I believe then …. bang. all wheels. never tried it but did make me wonder what would be going through anyone's head in those 5 seconds. Hopefully NOT the windscreen.

4th Apr 2019 9:03 pm

Hardware

Member Since: 28 Jun 2016
Location: Hiding under the M60
Posts: 12709

in fact … found this where Gareth talks about it being done at 110 mph. doesn't mention 5 seconds though.

https://disco4.com/forum/60-0-whats-import...ency+brake

4th Apr 2019 9:08 pm

ASPGuru

Member Since: 25 Mar 2007
Location: Sheffield
Posts: 100

2016 Discovery 4 3.0 SDV6 Graphite LE Auto Corris Grey

I had a go at emergency braking in a FFRR down at Eastnor LRE last year.

Pulling up, and holding up, the EPB activates something in the ABS system and you stop very rapidly!

It certainly isn't just the normal park brakes going on.

Cheers

Mark ~~19?? Lightweight 3.5V8~~
~~1977 109" FFR~~
~~1987 110 CSW DT~~
~~1991 Discovery 200TDi~~
~~2000 Defender 110 CSW Td5~~
~~2004 VW Caravelle, that we won't talk about~~
~~2015 Discovery SE Tech 3.0 SDV6 Aruba Gold~~
2016 Discovery Graphite 3.0 SDV6 Corris Grey

4th Apr 2019 9:10 pm

ASPGuru

Member Since: 25 Mar 2007
Location: Sheffield
Posts: 100

Double post removed ~~19?? Lightweight 3.5V8~~
~~1977 109" FFR~~
~~1987 110 CSW DT~~
~~1991 Discovery 200TDi~~
~~2000 Defender 110 CSW Td5~~
~~2004 VW Caravelle, that we won't talk about~~
~~2015 Discovery SE Tech 3.0 SDV6 Aruba Gold~~
2016 Discovery Graphite 3.0 SDV6 Corris Grey

4th Apr 2019 9:11 pm

Philip1972

Member Since: 10 Mar 2017
Location: Gloucestershire
Posts: 1072

4th Apr 2019 9:25 pm

rrhool

Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4400

Philip1972 wrote:
Thats me corrected then!

Thank you for the info

No, I think it's me that's been corrected! Every day is a school day!

Richard

D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.

Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone

4th Apr 2019 10:19 pm

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