lewes123
Member Since: 10 Jul 2012
Location: South Coast
Posts: 1
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My BMW brakes when speed is exceeded but its not radar cruise control so will run into the back of slower vehicles, they do two types one radar based and one that will maintain the speed using brakes if needed. I think one is active the other dynamic.
I assume that the Disco must be just either the radar based one or the very basic accelerator only which is a shame as I pock up ,y new Disco tomorrow .
I really like the BMW version without radar in speed limited areas as it will hold 30 or 40 but you are still in control of not crashing, I find the radar ones I've tried a bit odd as they react very late for me.
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 12th Jul 2012 6:02 pm |
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IanT599
Member Since: 24 Jun 2012
Location: Wolverhampton
Posts: 600
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I've had CC with braking on last 3 cars. Audi A6, BMW 320 and Skoda Superb.
My D3 doesn't have it but my disco is older than my last three cars.
I thought the braking was fine on them. The Skoda had DSG and used the gears to slow as well as the brakes.
Surprised it isn't on a new D4 as standard. Ian
No longer a LR owner
2018 BMW M240i
2011 FFRR 4.4 TDV8 Autobiography - Gone
2004 TD5 ES - Gone
2008 TDV6 G4 -Sold and missed very much
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| 12th Jul 2012 6:11 pm |
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DSL
Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72799
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Lewes, no radar on D3/4s, at least not from the factory. 
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| 12th Jul 2012 6:14 pm |
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Mother Theresa
Member Since: 21 Nov 2011
Location: Northants
Posts: 104
 
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Though a lot of a palava you can use the hill descent as a down hill cruise control and use the cruise buttons to increase or decrease the speed at which it was set. Good for long descents in the snow earlier in the year where the default speed was just too slow.
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| 20th Jul 2012 8:35 am |
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To_D3_or_not_to_D3
Member Since: 23 May 2011
Location: Surrey
Posts: 98
 
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Gareth wrote:Now it may be just a D3 thing, but I am sure my D3 dropped a gear automatically when descending a long hill on cruise control. It was on the A75 heading down towards the coast, it was a pretty steep and very long descent, and I was towing a caravan. I had the CC set to 60 ish.
Agreed, pretty sure mine does this too. Java Black Metropolis MY06
Peugeot 307 SW Silver
Peugeot 307 Silver
Audi TT Coupe 225 Silver
VW Golf SE Silver
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| 20th Jul 2012 8:45 am |
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chavanne
Member Since: 11 Jun 2010
Location: Stockholm
Posts: 3
 
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Going downhill in my D4 on German autobahn a couple of days ago at about 120km/h I touched the brakes slightly, and the gearbox shifted down one gear. This was not on cruise control.
I also have the feeling the car did  down on cruise control going down hill a few days earlier.
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| 1st Aug 2012 9:03 pm |
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glt.tce
Member Since: 13 Sep 2009
Location: Toowoomba
Posts: 2
 
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I currently have a TDV6 D3 which does over-run the speed set in the CC by up to about 8kph before kicking down (in sport setting). I believe that this is because of the auto gearbox. My wife's 2.0TDI Golf with its DSG gearbox is the only vehicle that I have driven which holds its speed downhill in CC to within 1 or 2 kph.
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| 15th Aug 2012 11:44 am |
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747_JK
Member Since: 03 Apr 2010
Location: Surrey
Posts: 268
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I find it a pain my D4 doesn't hold speed on CC downhill. All my BMWs have, even my Ford Edge Crossover in the US on hols last week did. Always considered it a standard function of CC until I owned a Land Rover... 747_JK
"Moab is my happy place"
2019 Land Rover Discovery 5 HSE
2015 Land Rover Discovery 4 HSE - SOLD
2010 Land Rover Discovery 4 HSE with a serious smoking habit - SOLD
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| 25th Aug 2012 5:29 pm |
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kp
Member Since: 27 May 2011
Location: Sticking the Ex back in the skanks bin
Posts: 2824
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Navigator wrote:Some folk knock it into neutral on the downhill bits and save fuel.
Urban myth that one im afraid  FFRR Owner, very nearly became a D3 owner 
Test piloted a new D4 XS SDV6.. Gone and being forgotten i hope!!
D4 HSE 10MY
D4 XS 11MY
SSRR Destroyer *2
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| 29th Aug 2012 10:31 pm |
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Popelka
Member Since: 31 May 2008
Location: Praha (Prague)
Posts: 2430
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dont know about urban myth, but if you can display current consumption you can see straight away whats happening.
On a down hill stretch If I go into neutral the engine is still getting fuel to keep it ticking over (stop it from stalling); but if I just come off the accelerator peddle the fuel flow is 0 and engine braking is in effect and its not speed dependent unless you are at slower than walking pace IE it keeps fuel flow to stop stalling.
so I can save fuel just by coming off the peddle, and still keep the same speed; but depending on the steepness of the hill I slip it down a gear if interested in keep the speed under control (slower cars in front  ) Experience is a difficult teacher, because she gives the test first and then the lesson afterwards!!!!
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| 30th Aug 2012 12:24 pm |
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kp
Member Since: 27 May 2011
Location: Sticking the Ex back in the skanks bin
Posts: 2824
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If you come of the pedal the car is still injecting fuel to maintain an idle speed.
if you leave it in gear all fuel is cut
This can be seen with diagnostic equipment monitoring injector duration
Yes it will show 99mpg or such, but its actually more economical to leave it in gear and use engine braking
And its safer as well
Fuel flow when not touching an accelerator is never 0 unless the engine is off FFRR Owner, very nearly became a D3 owner
Test piloted a new D4 XS SDV6.. Gone and being forgotten i hope!!
D4 HSE 10MY
D4 XS 11MY
SSRR Destroyer *2
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| 30th Aug 2012 12:43 pm |
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steveraspberry
Member Since: 18 Sep 2011
Location: Nr Sevenoaks,Kent
Posts: 2081
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M3DPO wrote:Cc is cancelled on all models when the brakes are used.
Once had a Merc slk 350 that didn't, the cc would not disengage  The harder I pressed the brake the car thought it was going uphill and changed down with more power I had to turn the engine off which locked the steering I ended up in a ditch in a field  apparently it had a fault on the accelerator potentiometer.
Wouldn't putting it into neutral then using the brakes ( and steering! ) have been the safer option? Noisy perhaps with the revving but getting the car stopped safely THEN turning it off? Just MHO  My17 Volvo XC90 Inscription
MY15 Mitsubishi L200 Barbarian
RGK Tiga Fx Wheelchair,
Large Alsation called Abbs
Medium blue Staffie called Piglet
Medium Alsation called Bailey
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| 19th Sep 2012 10:56 am |
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muddywheels4wd
Member Since: 16 Dec 2010
Location: East Riding of Yorkshire
Posts: 1659
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I had a close call yesterday - Cruise set at 60 on straight road then started going downhill while talking to my son and not watching speedo when I noticed a Police car coming towards me slowing down and looking - glanced at speedo and had crept up to 65 so braked and saw them u turn in rear mirror 
He sat behind me for ages - thankfully he couldn't see my bright red neck due to the privacy glass - then he overtook, slowed down and put on blues then shot away into the distance like I was standing still 
My son passed his test recently and enjoyed every minute of my squirming 
I have a clean licence and becoming paranoid with all the the 20, 40 and 50's especially on roads I don't know when I cant see any little lamp post reminders and people are on my bumper because they don't care what the limit is and never get caught  Wanted a Series 2 LR since childhood but previously owned MY16 Disco Sport HSE TD4 Auto, MY13 RR Sport Black Edition TDV6 Auto, MY10 RR Sport HSE TDV6 Auto, 2007 Freelander 1 Freestyle TD4 Soft Top, 2009 Freelander 2 GS TD4 Auto, 2007 Freelander 2 GS TD4, 2004 Disco 2 Metropolis Auto, 2002 Disco 2 GS, 2000 Freelander 1 SE TD4 SW
Still hoping for a S2 one day!
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| 19th Sep 2012 11:13 am |
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amazing
Member Since: 05 Mar 2011
Location: chengdu
Posts: 1542
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currently on a road trip and mine too crept up from the set70 to 90 on a long slope. first time its happened. It is better to have and not need it then need and not have it.
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| 19th Sep 2012 1:11 pm |
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stvmor
Member Since: 21 Mar 2008
Location: Hove East Sussex
Posts: 145
 
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Navigator wrote:Some folk knock it into neutral on the downhill bits and save fuel.
If you take it out of gear the engine uses fuel to tick over. With the car in gear and no throttle the fuel supply is cut off Stvmor
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| 19th Sep 2012 1:21 pm |
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