Member Since: 03 Mar 2016
Location: Essex
Posts: 56
Another diff lock question
Ok so I'd like to start off by saying I'm excited to have just agreed to buy a 61 plate discovery 4 HSE SDV6 , just a quick question I'm not bothered about the rear Cdl but do all discovery 4s have the CDL standard like the 3s might seem a stupid question but when I was playing around with the terrain response in low range watching the 4X4 screen the usual unlocked padlocks didn't come up is that icon only on the 3 s .
Thanks
3rd Mar 2016 11:00 pm
Gareth Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26776
All 3's and 4's are the same, with an auto locking centre differential, and an optional locking rear differential.
3rd Mar 2016 11:17 pm
challenger23
Member Since: 03 Mar 2016
Location: Essex
Posts: 56
Can you see when it is active on the screen ?
3rd Mar 2016 11:24 pm
motolite
Member Since: 18 Mar 2013
Location: Sydney
Posts: 931
Quote:
Can you see when it is active on the screen
Yes, lock changes to green
4th Mar 2016 3:20 am
challenger23
Member Since: 03 Mar 2016
Location: Essex
Posts: 56
Yes thats what i couldn't seem to work out why even in low range the padlock icon didn't come up even open does it need to be in any particular mode apart from low range and mud ruts to see ?
This is all i seemed to see was a screen like this even in low range
4th Mar 2016 8:00 am
Bodsy Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset See It Here
4th Mar 2016 8:12 am
challenger23
Member Since: 03 Mar 2016
Location: Essex
Posts: 56
I did put in mud and ruts ?
but car was in neutral
4th Mar 2016 8:15 am
L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2083
It wont always lock until the electronics detect some slip. I think it will lock straight away in rock crawl.
4th Mar 2016 8:18 am
challenger23
Member Since: 03 Mar 2016
Location: Essex
Posts: 56
Ok so do some have the unlocked padlock symbol up permanently which lock under slip and others have no padlock symbol that only appears on slippage ?
4th Mar 2016 8:25 am
ST53VEN
Member Since: 18 Dec 2012
Location: Aberdeenshire
Posts: 263
Mine has the rear locker fitted and it doesnt lock unless its really slipping. Doesnt matter what setting its in. I tried rock crawl, going round in circles on loose gravel etc. but it would not lock. That made me worry it wasnt working so i headed straight for the mud and it locked as soon as i started to loose traction. As soon as i select any option in terrain response i get 2 green locks appear then they go red when they lock. Hope that helps.
4th Mar 2016 10:11 am
Discogaz
Member Since: 17 Mar 2014
Location: Bracknell
Posts: 1399
Here's a bit of a blonde but related question.
What is the difference between a locking rear diff and an E diff?
When I put mine into TR I get central and rear diff showing up on the screen
but looking under the rear, I can't see that I have an E diff.
Just curious.
4th Mar 2016 10:25 am
ST53VEN
Member Since: 18 Dec 2012
Location: Aberdeenshire
Posts: 263
Same thing E-Diff = Electronic Locking Diff.
4th Mar 2016 10:28 am
ST53VEN
Member Since: 18 Dec 2012
Location: Aberdeenshire
Posts: 263
Im sure some show on up the TR even if its not fitted and never turn red. Have a look on top of the rear diff through the rear NS arch and you should see the wires going to the motor on the diff.
4th Mar 2016 10:33 am
Discogaz
Member Since: 17 Mar 2014
Location: Bracknell
Posts: 1399
That's the thing ST53VEN, I can't see that I have an E diff but
centre and rear diffs show up on the screen in TR when I would have
not expected the rear diff to show up without an E diff.
Will have a better nose around under the old girl at the weekend.
4th Mar 2016 10:45 am
ST53VEN
Member Since: 18 Dec 2012
Location: Aberdeenshire
Posts: 263
Yeah its a bit miss leading when it shows up on vehicles that dont have it installed. You would think it would only show when the the vehicle knows its installed. If you search on google images you should see what you are looking for.
See below locking and non locking rear diffs. Item number 4 is what your looking for.
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