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Thread: Towing with Disco 4

  1. #1
    Join Date
    Dec 2020
    Location
    Imbil Queensland
    Posts
    6

    Towing with Disco 4

    Hi All you LRovers out there
    We have a Disco 4 and it tows (3.5t) off-road van very poorly. Scary in fact. (Just a new (second hand). The previous owners say it was a dream to tow. I have been through weight distribution, wheel alignment and next on the list is tyre pressures. I see these things on the www. LED trailer module LAND ROVER DISCOVERY 4 / LR4 (L319) LED TOWING ADAPTOR MODULE

    1. we don’t have an issue with led lights but I am not sure the disco “recognises” the trailer.
    How can I tell?
    2. we don’t seem to have an issue with the trailer brakes but now have some doubt with possible wireing connections. What is the consequence of incorrect wireing connection?
    3. Does anyone recommend a towing adaptor module?
    4. The van has dexter sway control. It can be felt working but will not correct the big movements caused by overtaking trucks etc. Should a Dexter eliminate ALL sway?

    thanks in advance
    ian

  2. #2
    Join Date
    Oct 2012
    Location
    Perth
    Posts
    1,475

    Towing with Disco 4

    After watching the recent Cadogan videos on towing and vehicle capabilities Im now now nervous to share the road and very dubious of any non Ram or F-truck style vehicle attempting to tow 3.5t considering the total loaded combined weight, tow ball weight factors and any situation where the tow vehicle is lighter than the the towed object.

  3. #3
    Join Date
    Dec 2020
    Location
    Imbil Queensland
    Posts
    6

    Towing with Disco 4

    Hi All you LRovers out there
    We have a Disco 4 and it tows (3.5t) off-road van very poorly. Scary in fact. (Just a new (second hand). The previous owners say it was a dream to tow. I have been through weight distribution, wheel alignment and next on the list is tyre pressures. I see these things on the www. LED trailer module LAND ROVER DISCOVERY 4 / LR4 (L319) LED TOWING ADAPTOR MODULE

    1. we don’t have an issue with led lights but I am not sure the disco “recognises” the trailer.
    How can I tell?
    2. we don’t seem to have an issue with the trailer brakes but now have some doubt with possible wireing connections. What is the consequence of incorrect wireing connection?
    3. Does anyone recommend a towing adaptor module?
    4. The van has dexter sway control. It can be felt working but will not correct the big movements caused by overtaking trucks etc. Should a Dexter eliminate ALL sway?

    thanks in advance
    ian

  4. #4
    Join Date
    Aug 2016
    Location
    Melbourne
    Posts
    429
    The way to see if your car recognises the van attached is to put your left and/or right indicator on. On the taco binical you should see a green trailer flashing. If not the car is not recognising anything is attached. The car anti sway etc will still work but gear changes etc will be as if nothing is connected.

    Depending on what brake controller you have (I have a redarc) as you drive along push the control button and you should feel the van brakes being applied and pulling you up. Consequences of no van brakes is that you are relying on car to pull the total weight of van and car up. Not only lot more distance required to stop, but possible jack knifing and also illegal with anything more than 750kg attached to the car.

    I made my own adapter from the car round plug to a 12 pin flat plug. Also to operate antisway, and fridge I installed Traxide with Anderson plug. Thgen did a piggy back with red anderson plug for anti sway and grey plug for fridge. Can use the correct pin on the plug but it can get hot because of the amps the fridge draws on 12V.

    I have Al Ko anti sway. I have not felt it work except on extreme sways. Minor sway as you mention would probably not be enough to make it kick in. Not sure if any of them are adjustable.
    2016.5 TDV6 Graphite D4, Corris Grey, APT sliders, Goe air comp plate, UHF & HF radio, Airflow snorkel, Discrete Winch,Compomotive rims with 265/65/18 KO Ta's, LLAMs, Traxide dual battery with winch set up, EAS emergency kit, Mitch Hitch

  5. #5
    Join Date
    Oct 2011
    Location
    Fremantle WA
    Posts
    3,161
    Quote Originally Posted by PerthDisco View Post
    After watching the recent Cadogan videos on towing and vehicle capabilities Im now now nervous to share the road and very dubious of any non Ram or F-truck style vehicle attempting to tow 3.5t considering the total loaded combined weight, tow ball weight factors and any situation where the tow vehicle is lighter than the the towed object.
    For my sins, I tow a high 3.5T van (see moniker pic) with my 2.7 D4, but am the first to admit some road surfaces keep me down to cruising at 80 kmph, and even on good roads I'm more comfortable long distance at 95. I'm an ex truck and bus driver from my considerably younger days with a HR licence for over 50 years, and farm driving before that. Don't consider myself an expert driver, but I do have a modicum of common sense and have never had a prang.

    On our NE AU trip from WA and return over a year ago, the Queensland roads were generally woeful, unlike WA/most NT versions, so had plenty of variances ( and slower driving).

    I've always been told D3/4 should never have any weight distribution hitching (its all built in), but anti sway control on the van is good for road trains and "variegated" road surfaces etc. I have it on mine and it gets used now and again. But yes it doesn't eliminate, just mitigate.

    The experts should tune in soon with their comments.
    D4 MY10 2.7 6 speed from Apr 19 with LLAMS, long range tank and other goodies - for towing "The Brick"
    MY95 RRC LSE Vogue Softdash "Bessie" from Aug 13 - with MY99 TD5 and 4HP24 transplant. Back home Aug 20 after being off road for periods totalling 3.5 years
    SADLY SOLD MY04 D2a TD5 auto Classic

  6. #6
    Join Date
    Jan 1970
    Location
    NSW Far South Coast
    Posts
    611
    What do you have on the rear of the van? One spare wheel, or two plus jerry cans.
    What did you tow the van with previously, and how big was the van that the previous owners towed.
    All valid questions, but I agree. None of the vehicles with a 3.5 ton towing limit are really well suited to towing 3.5 ton!

  7. #7
    Join Date
    Dec 2020
    Location
    Imbil Queensland
    Posts
    6
    Quote Originally Posted by ytt105 View Post
    What do you have on the rear of the van? One spare wheel, or two plus jerry cans.

    There is only one spare on the rear. BUT just inside is a full Redarc Battery management system with a 3000w inverter and 2 big batteries.
    And two diesel tanks probably 14litres total.

    the van weighs 2.5 tonne bare (at the factory). We are light campers so we generally weigh 3t in travel mode with 210kg on the hitch.

    What did you tow the van with previously,
    We have only just purchased this van so no previous vehicle and no van experience.

    and how big was the van that the previous owners towed.

    The van is 18.5 feet with everything that opens and shuts
    They towed with a Ranger and then a cruiser. They report no towing issues with either vehicle

    We only seem to have the following options

    1. Load positions
    2. Tow ball weight
    3. Tow ball height
    4. Tyre pressure
    5. Air bag pressure in van
    6. And if a resistor will help the disco computer change ride hts and gear changing (not just lights


    All valid questions, but I agree. None of the vehicles with a 3.5 ton towing limit are really well suited to towing 3.5 ton!
    I think the disco is here to stay. The van is expendable

    Thanks
    Ian

  8. #8
    Join Date
    Jan 1970
    Location
    NSW Far South Coast
    Posts
    611
    Personally, I'd up the towbar weight a bit myself.

  9. #9
    Join Date
    May 2013
    Location
    Bittern Vic
    Posts
    441
    It sounds like something is wrong with the balance of the van. More info on the van would help. Next time ..... i get the van out for a trip i am going to get a professional to come over and do a weight test of all axles etc just to ensure i am legal and cant be blamed for any overloading.

    A full weight test may highlight is the van is over weight at the rear and has poor weight distribution

    A D4 should to reasonably well with a reasonable sized van. But caravans have been getting very large of late and also some have very high centre of gravity which wont help.
    One freind nearly rolled his van and cruiser down a steep slope, after this he moved the generator from the back to in front of the axle and all was good there after.

    Ian
    Bittern

  10. #10
    Join Date
    Aug 2012
    Location
    Encounter Bay
    Posts
    540
    Ian, we have a D4 and Trakmaster Nullabor ; Total weight was 5800kg years ago ,and I never toss anything out ,so would be heavier now.

    NO weight distribution or anti sway equipment.

    And to use a stupid expression, dont know the van is there when on the road

    i concur with ytt , shift a bit of weight forward , perhaps have a bit more pressure in rear tyres of van , ours at 36 psi all round

    Now Ian , I dont know if you believe in fairies, but if we havent travelled for a few months, the first half hour on the road can be a bit underwhelming. I think the D4 takes a while to realise it is in a heavy towing mode ,and also of course me.

    Then after the fairies and various systems are all synchronised ... dont know its there

    so get on a quiet road, and try a few things and hope you get sorted and enjoy

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