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KurtVerbose



Member Since: 08 Aug 2010
Location: Les Arses
Posts: 5848

Switzerland 2007 Range Rover Vogue TDV8 Stornoway Grey
Brand new never discussed before technical issue! (maybe)

My brakes are ok (not sh*t, not stunning) - typical TD6 brakes. I notice when reversing they're sh*t. I was backing a loaded trailer down a slope and they required a very big squeeze to stop - much bigger than if I was going forwards.

Can't work out why this is, although I'm not that bothered about it as it's not really a safety issue (I reverse slowly Smile ).

Isn't that exciting - a new technical issue unrelated to air suspension, gearbox, flaps, steps, egr's, etc!

Any ideas?

Post #285336 9th Oct 2014 7:54pm
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Contraband



Member Since: 08 Nov 2010
Location: FIFE
Posts: 3697

Scotland 

The push me pull me conundrum... Easier to stop a mass when going forward with the car pulling the weight as opposed to the weight pulling the car when going backwards....
Trailer brakes generally only work when going forward.... Previously..
Vogue SE TD6
Defender 90 2.4
Defender 110 TD5
Vogue 3.5 EFI

Post #285340 9th Oct 2014 7:59pm
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GrahamCharlton



Member Since: 17 Aug 2014
Location: Newcastle upon Tyne
Posts: 30

England 2012 Range Rover Vogue TDV8 Stornoway Grey

If you were reversing the trailer down a hill the trailers overrun brakes would not operate so the range rover brakes would be trying to stop the weight of the trailer as well as the car. If you were going forward the trailer brakes would operate and assist in slowing the trailer. I don't think there sounds like anything wrong.

Post #285341 9th Oct 2014 8:02pm
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KurtVerbose



Member Since: 08 Aug 2010
Location: Les Arses
Posts: 5848

Switzerland 2007 Range Rover Vogue TDV8 Stornoway Grey

Ah, come on - can't be that simple. We should have pages and pages of discussion here!

Post #285343 9th Oct 2014 8:06pm
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GrahamCharlton



Member Since: 17 Aug 2014
Location: Newcastle upon Tyne
Posts: 30

England 2012 Range Rover Vogue TDV8 Stornoway Grey

You could be right. It might be something to do with the model year of the trailer. Or perhaps it is older than you think and has been face lifted in which case it could be some compatibility issue. I think you had better take it and get it plugged in to the computer for some diagnostics!

Post #285348 9th Oct 2014 8:15pm
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nicedayforit



Member Since: 11 Jun 2011
Location: Beside the Solway
Posts: 3954

England 2004 Range Rover Vogue Td6 Giverny Green

"My brakes are ok (not sh*t, not stunning) - typical TD6 brakes"

Bit surprised by the above observation. My brakes are really good ( bordering on stunning) and that's with partially worn discs and pads.

Does having smaller pads on the rear affect reverse braking? Think it may have something to do with it.

The rear brakes are also pressure regulated to avoid locking up when braking going forward so the braking effect isn't as great.
Also when reverse braking, the load on the ground and thus the brakes is far less than when braking going forward due to weight distribution of the car.

Post #285350 9th Oct 2014 8:17pm
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Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 7908

England 2014 Range Rover Autobiography SDV8 Loire Blue

Do you have directional tyres I recon it could be that Whistle

Or maybe, because reverse is a higher ratio gear than first you have less vacuum to work the servo Whistle

The viscous fan is on backwards and the brakes are having to fight against the blow from it Whistle



How much discussion do you want..... Laughing Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
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Post #285353 9th Oct 2014 8:23pm
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Contraband



Member Since: 08 Nov 2010
Location: FIFE
Posts: 3697

Scotland 

Try disconnecting the battery and waiting 20 mins... Whistle Previously..
Vogue SE TD6
Defender 90 2.4
Defender 110 TD5
Vogue 3.5 EFI

Post #285359 9th Oct 2014 8:35pm
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KurtVerbose



Member Since: 08 Aug 2010
Location: Les Arses
Posts: 5848

Switzerland 2007 Range Rover Vogue TDV8 Stornoway Grey

I'm going to try disconnecting the trailer and trying.

Post #285361 9th Oct 2014 8:41pm
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sako243



Member Since: 26 Dec 2013
Location: Wales
Posts: 605

United Kingdom 2011 Range Rover Vogue TDV8 Santorini Black

Shouldn't affect braking performance but they are usually designed to have the wheels rotating forwards as that is usually what they do. It is theoretically possible to twist them off if reversing really fast (probably faster than the vehicle's capable of in reverse).

Post #285364 9th Oct 2014 8:49pm
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northernmonkeyjones



Member Since: 24 Mar 2012
Location: derby
Posts: 8479

United Kingdom 2016 Range Rover Autobiography SDV8 Santorini Black

+1 for the overrun brakes on the trailer not working in reverse. Same with my caravan, takes more braking force if the trailer is trying to pull you down the hill..... There is nothing that can't be fixed with a hammer๐Ÿ˜œ๐Ÿ˜œ
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Post #285368 9th Oct 2014 9:02pm
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Joe90



Member Since: 29 Apr 2010
Location: Hampshire
Posts: 6399

England 

Certainly used to get this with "proper" Minis and MG Midget Mk1 (both drums all round) without trailers (of course) in reverse. so guess the same physics may apply ? Not noticed it on my FFRR though (without trailer). .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember Wink
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Post #285379 9th Oct 2014 9:30pm
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RR2008HSE



Member Since: 06 Jan 2013
Location: British Columbia
Posts: 2932

Canada 2008 Range Rover HSE 4.4 V8 Java Black

Yes, Joe.

On drums, there's a bit of positive feedback when the shoes press against the drums when going forward and the brakes are applied. In reverse, they should be fine given the speeds involved. I don't think discs work the same way. I don't know, but I think their equally good in either direction.

Post #285416 10th Oct 2014 2:16am
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Welshdragon



Member Since: 20 Jan 2012
Location: here and there...but not where I should be
Posts: 1898

Wales 2003 Range Rover Vogue 4.4 V8 Monte Carlo Blue
Re: Brand new never discussed before technical issue! (maybe

KurtVerbose wrote:
I notice when reversing they're sh*t. I was backing a loaded trailer down a slope and they required a very big squeeze to stop

Any ideas?


Mick this is the problem, stop over loading the trailer and the brakes will work Whistle






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Post #285427 10th Oct 2014 8:21am
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Post #285434 10th Oct 2014 9:08am
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