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13 pin plug

Total Posts: 110
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Posted: 6 years ago
Anyone know how to fit a13 pin plug to my disco ?
we have a caravan with a 13 pin plug and my disc still has the S and N plugs and it getting to be a pain in the sitting region
and this year in france one of the wire overheated and burnt through on the converter so any advice would be good
Total Posts: 57
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Posted: 6 years ago
Here you go:
http://www.towsure.com/product/Towbar_Electrics_Adaptor_7_Pin_plug_to_13_Pin_Socket

I have a spare one for half that price if you can collect from near cardiff Airport! Seriously though, I do have a spare one, don't know how much p&p is.
Total Posts: 270
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Posted: 6 years ago
Evening Mr Kenarthur, Teecee is after info' on how to convert the Disco from 7 to 13 pin by hardwiring it on not using another adapter..
Ozz
Total Posts: 57
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Posted: 6 years ago
I appreciate that just thought he might need a new connector as an easier fix.
Total Posts: 18
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Posted: 6 years ago
Have written up DIY instructions on how to convert caravans to the new 13 pin plug, you can use these same instructions to fit a 13 pin euro plug to your prime mover, said instructions are a nine page A4 doc, to large to post on this reply, please email me on my public email address, will send as an attachment, colin-handcock@hotmail.co.uk, hope this may be of help to you, kind regards, Snowy.
Total Posts: 155
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Posted: 6 years ago
If you feel you can replace your sockets yourself this would be the easiest option, if not any towbar fitter would replace them for the new 13 pin socket usually around 50 pounds.
Total Posts: 270
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Posted: 6 years ago
Snowy, I hope you feel guilty about people killing all them trees for the paper for your instructions unless they can print on both sides.. :-) ..
Total Posts: 39
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Posted: 6 years ago
I don't see anywhere in Snowy's post about printing the pages out. There's no reason why the attachment couldn't be read from a laptop or smart phone.

How many pages could have been printed from all the fir trees that will be going to landfill next week?
Total Posts: 270
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Posted: 6 years ago
Couldn't agree more about the fir trees, I think they should ban all sales of real xmas trees and make people buy re-usable ones made from re-cycled plastic...
Or alternatively, ban Xmas altogether as it's just commercialised mugging of the masses of parents,,,,,,, by kids??...
BAH HUMBUG!!!!!.
Ozz.
Total Posts: 18
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Posted: 6 years ago
Ha Ha, I must say, I like your jokes about killing al them trees :)
Total Posts: 18
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Posted: 6 years ago
With ref to my instructions, they maybe very useful to anyone converting a caravan built prior to september 1998 to the euro plug system as a modification must be undertaken on these older caravans before they can be upgraded, if this is not done, damage may happen to both caravan and drawing vehicle in the long term, but who am I to say what is right or wrong, I am only trying to be of help.
Total Posts: 72
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Posted: 6 years ago
Buy a converter I have had a new 13 pin on my Antara but my current caravan has the old 2 plugs but as we plan to change the caravan before the car it seemed the best way forward... Shop around as they do vary in cost... being addicted to eBay that's where I got my adapter from paid under £10 and its great.
Total Posts: 18
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Posted: 6 years ago
Said converter will not allow all functions to work on caravans built prior to September 1998, as the caravans wiring is not the same within the 12s as caravans built post September 1998, for a start, the caravan's battery will not charge from the drawing vehicle with such an adapter.
Total Posts: 51
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Posted: 6 years ago
This site has the info you need http://uk-trailer-parts.co.uk/wiring-a-13-pin-euro-plug
Snowy's information is about rewiring the caravan. For the car end its just a matter of moving the wires from the two sockets in to the one.
Total Posts: 228
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Posted: 6 years ago
Surffreak, problem is on some makes of car you cannot muck about with the wiring the circuits are protected and you can blow something then it has got to go back to the dealers or an auto electrician to be fixed, take my tug for instance, anybody can fit a towbar as a kit or a plug for that matter as a diy job but it will not work it has got to go on a computer to tell the brains to switch it all on. Obviously on older cars it would be possible but as I said the newer models of a lot of cars you just cannot do it.
Total Posts: 51
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Posted: 6 years ago
Its already wired so all he will be doing is changing the type of sockets. It wont have any effect the the wire going to the lights will still be going to the same lights just through a different type of socket, no problems.
Total Posts: 18
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Posted: 6 years ago
You are both right in what you are saying, Rcpilot, you speak very true words Sir and Surffreak, in the said instance, you are also spot on in my opinion.

I would just like to say that there is a simple way a DIY person can wire their own tow-bar to a modern vehicle which is ECU controlled and has Multiplexed/CAN-bus wiring, without having to have a special wiring loom and/or having to fit a special modual and having to have the drawing vehicle's ECU reprogramed at a garage ETC by a laptop. If you buy a H52 seven way smart bypass relay to supply the road lighting to the cars 12n socket or pins 1 to 7 within the euro plug, you can wire the road lighting more or less as simply as you could in days gone by. If you buy a Smartcom (30 amp) Heavy Duty Caravan Relay Split Charge RCT460 to supply the Auxiliaries to the cars 12s socket or pins 9 to 13 within the euro plug, you can wire the auxiliaries more or less as simply as you could in days gone by as previously said, job done.
Total Posts: 18
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Posted: 6 years ago
PS, I am currently writing about this DIY method in an additional chapter to my instruction leaflet, fifth edition may 2013.
Total Posts: 18
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Posted: 6 years ago
WARNING, If you fit any DIY devices like these to a vehicle that is under manufactures warranty, it may invalidate it, but I must say; these devices are sound and work very well, they are even compatible with vehicles with LED Lighting and shared control wired systems (common wire feeding, tail & brake or tail & fiog) ETC.
Total Posts: 18
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Posted: 6 years ago
PS, The H52 seven way smart bypass relay even has a built in transflash (with warning) for operating the caravans/trailers indicators.
Total Posts: 18
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Posted: 6 years ago
Sorry, with reference to a statement above; to the cars 12n socket or pins 1 to 8 within the euro plug, not pins 1 to 7 as stated.
Total Posts: 18
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Posted: 6 years ago
H52 relay, costs around £40 retail, around £25 off the net, plus postage.
RCT460 relay split charge, costs around £30 retail, around £16 off the nett, plus postage.
Total Posts: 18
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Posted: 6 years ago
I'm a bit out with my prices, just had a look on the net, you can now buy them alot cheaper now
Total Posts: 228
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Posted: 6 years ago
Hi Snowy can you enlighten us ? why were some of the cables uprated in the new 13 pin euro plug, was it because of the more modern chargers and fridges, or was it purely for safety reasons
Total Posts: 18
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Posted: 6 years ago
Hi Rcpilot,
To try and answer your question correctly without appearing to be a know it all, which I am not, the rating of the cables within the 13 core euro cable are no higher than they were in the 12n & 12s cables after the september 1998 wiring changes.

I understand that before the Sept 1998 wiring changes the cables within the 12n cable (road lighting) were 1mm² and 1.5mm² for the earth return cable, after the Sept 1998 changes these cables were uprated to 1.5mm² and 2.5mm² for the earth return wire, these being the same as the 13 core euro cable is today for the road lighting.

I believe the cables within the 12s cable were uprated to 2.5mm² for charging & fridge (inc earth return wires) and 1.5mm² for the reversing lights & coding for coupled trailer circuit (not normaly used) in the Sept 1998 changes at the same time, these again, being the same as the 13 core euro cable is today.

So, to answer the question, these cables were uprated to help reduce voltage drop, which they do, you could say that this may aid safety as the caravan's road lighting may appear to be slightly brighter and less chance of earthing backfeeds. In theory, the caravan's battery charging and fridge current remains the same as caravans built prior to Sept 1998, but the heavier gauge wire allows them to work more efficiently.
Total Posts: 18
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Posted: 6 years ago
Point of interest before someone tries to catch me out, not mentioned above when explaining the upgrading of the 12s (auxiliary) cable in the September 1998 wiring changes; Before the Sept 1998 caravan wiring changes the earth return cable within the 12s cable was 4mm², this was because the earth return wire on these older wired caravans was the combined earth return for the caravan leasure battery charging, caravan fridge and power to caravan internal electrics directly from the drawing vehicle.

Within the 12s (auxiliary) cable on caravans built post September 1998, this 4mm² earth return wire was replaced by 2 x 2.5mm² earth return wires as stated above, one for the fridge and the other for battery charging and (if the caravan is wired to do so, some are & some are not) the return for the power supply to the caravan internal electrics to work directly from the drawing vehicle should the caravans leasure battery run low and no mains electric is avalable.
Total Posts: 18
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Posted: 6 years ago
Sorry, mistake, I mean 3.5mm² not 4mm², I'm losing it, I'm going senile in my old age :)
Total Posts: 228
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Posted: 6 years ago
Hi snowy
No, it was just that I noticed in the 13 pin euro plug they have included an extra earth return that was'nt in the 7 pin plugs (I think) and that all the wires in my old caravan were standard auto gauge wires, that van I changed to a 13 pin plug because my new car (then) came with a 13 pin socket on the manufacturers towbar and obviously with the better fidges and chargers you find in the modern caravans the wiring in the 13 pin plugs would have to be uprated. thanks anyway.
Total Posts: 169
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Posted: 6 years ago
I would advise to get this done professionally, rather than take the chance of damaging the vehicles