View Full Version : Question on Rock Crawl mode using GOE lift rods
hpal
3rd February 2019, 01:50 PM
Hi All,
I’ll be doing a track in a few weeks which has lots of rock steps and can be challenging in spots, I will have the 17’s on with BFG muddies as well which will help. I haven’t mucked around too much with terrain response settings but am under the impression that rock crawl mode has the most aggressive traction settings for what I’ll be doing. I usually pop the GOE rods into the other hole to raise the suspension a bit, my main question is Will rock crawl mode automatically raise the suspension to off-road height? I think this may be too high with the rods in raised height and may make the disco a bit more unstable and harder suspension. It will in effect be super dooper extended height. Should I leave the rods in normal position and just let the rock crawl mode do it’s thing? Any other tips. Thanks.
LRD414
3rd February 2019, 01:56 PM
Your assumptions are correct. If you expect to have enough clearance at factory off-road height then just use Rock Crawl without the rods. If that’s not enough clearance then the extra bounce at extended height will just have to be dealt with. I always try to use factory height settings and only add to that when required, which is very easy with Llams.
Cheers,
Scott
BobD
3rd February 2019, 02:05 PM
You just manually lower the suspension after selecting Rock Crawl if you have the rods. Not good to have both unless you want to have a temporary height increase at which time you can press the up button and use the extra height that the rods give you.
I would put the rods on and then lower the suspension to normal height when the TR automatically raises it. You will get a message warning you that you should be at off road height when you do that.
hpal
3rd February 2019, 02:15 PM
Thanks Scott and Bob,
That sounds like a good idea Bob, I wasn’t sure if you could lower it again or if rock crawl locked it in raised height. I’ll do that and raise it to extended height temporarily if I run into clearance issues.
oldsalt
3rd February 2019, 09:46 PM
I'll be interested to hear how it all works out for you...look forward to a report....
cheers
loanrangie
3rd February 2019, 09:59 PM
To get back to normal height with rods on wouldn't you then need to select access mode ?
Turtle60
3rd February 2019, 11:08 PM
To get back to normal height with rods on wouldn't you then need to select access mode ?
Yes you would and it will probably stay in access unless you exceed 8 or 10 kph. 
To the original question, no rock crawl won’t raise the height. You have too. If you engage the rods then this simply means every factory setting is 50 mm higher and performs as per factory default. 
 But use the rods and experiment. You put them on. But using the rods AND off road height will raise the car significantly and you may ( will) loose wheel travel somewhat so you may find yourself popping wheels in the air as the car will be as stiff as a board. Have fun and if you remain sensible you shouldn’t have a drama either way. 
Final thought. Engage the rods, Leave it in normal height ( as it will now be off road height) and then if you need to tweek it some more you can with a flick of a button rather than get out of the car in a perhaps unsafe situation to adjust rods. Youll be amazed how capable it is. Cheers Steve
LRD414
4th February 2019, 12:22 PM
To the original question, no rock crawl won’t raise the height. You have too.
When Rock Crawl is selected the vehicle automatically selects offroad height, unless it is already in offroad height. This function is inhibited if a trailer connection is detected. Hence if you have rods or Llams set to offroad height but the factory height is normal, the vehicle will raise at selection of Rock Crawl to the equivalent of Extended Height.
Regards,
Scott
Disco-tastic
4th February 2019, 12:44 PM
When Rock Crawl is selected the vehicle automatically selects offroad height, unless it is already in offroad height. This function is inhibited if a trailer connection is detected. Hence if you have rods or Llams set to offroad height but the factory height is normal, the vehicle will raise at selection of Rock Crawl to the equivalent of Extended Height.
Regards,
ScottScott, does it do it in both high and low range? I have a recollection of it only raising in low range, though I dont have mine near me to check.
LRD414
4th February 2019, 12:49 PM
Scott, does it do it in both high and low range? I have a recollection of it only raising in low range, though I dont have mine near me to check.
Dan, Rock Crawl is only available when in low range.
Cheers,
Scott
Disco-tastic
4th February 2019, 12:54 PM
Dan, Rock Crawl is only available when in low range.
Cheers,
ScottI could have sworn I've used it in high, but it has been a while since ive needed it!
BobD
4th February 2019, 01:07 PM
The car will only auto lift in low range and does it for any of the off road modes. Rock Crawl prompts you to use low range but doesn't require it to work. However, as with all the TR settings, they only optimize the car properly for off road driving when in low range. You can read it in the FAQ's I think but a lot of the settings are changed specifically for off road when in low range.
LRD414
4th February 2019, 01:50 PM
Rock Crawl prompts you to use low range but doesn't require it to work
This is the case for other settings but not Rock Crawl, for which low range is mandatory.
Regards,
Scott
148160
Graeme
4th February 2019, 01:51 PM
I can't select Rock Crawl on my L322 unless in low range, but get a prompt suggesting low range when mud/ruts is selected.
ATH
4th February 2019, 07:09 PM
I've used rock crawl on just 2 occasions and was very pleased with the results. Not sure if it automatically went into low range or not but the first time was on a beach with very soft sand and I was feeling stuffed and didn't want to dig.... put it in rock crawl and the vehicle just gradually went reversed with no help from me on the throttle.
Next was at a campsite where if you take the wrong track you end up in a lot of pebble shale.... and I did just that with our van on the back! And all the unstoppable unbreakable drivers were watching with big grins on their ugly mugs. :(
Into rock crawl and just gradually drove through and out safely much to the delight of a D3 owner who was watching. :)  And me.
Guess whose ugly mug had the biggest grin on it then? :)
AlanH.
BobD
6th February 2019, 07:01 PM
This is the case for other settings but not Rock Crawl, for which low range is mandatory.
Regards,
Scott
148160
I just checked my D4 and you are correct. It prompts for low range to be selected and doesn't activate Rock Crawl in high range. I've never tried using it in high range because I use low range anyway for any off roading apart from very easy hard sand beaches or the like.
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