Towbar Fitting

Discussion in 'Tech/Mech General' started by mickymouse, Aug 14, 2015.

  1. mickymouse

    mickymouse Funster

    Nov 28, 2010
    Likes Received:
    Torrevieja, Spain
    Hi, I am thinking of having a tow bar fitted to my Hymer B660 (merc chassis) 2005 and have been given a quote by hymer dealer for 1600euros to have this done [I live In Spain] when I queried the price I was told that a special electrical box was required? I was under the impression that the wiring for the trailer was taken off the rear light units therefore nothing to complicated, I realise that it will require extra steel work to mount the towbar and here in Spain I will have to have the work certified at the ITV [MOT] station and put on the vehicle docs but 1600 euros seems a bit too expensive?

    Can anyone give me any advice on cost and work involved to retro fit a towbar.

    Thanks Mickymouse
  2. John Laidler

    John Laidler Funster

    Jan 9, 2013
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    Plympton, Devon
    If it has a CAN bus system you can't just take the feeds off the rear lights with Scotchlocks or whatever used to be done. Effectively, the electrics are a network with tiny signals being sent to tell what needs to be turned off or on. This is why it may need a magic box to turn these small signals into something useful. Also, the vehicle may have things like an electronic stability system which wants to know if there is a trailer attached. Costs do seem to vary between makes, a Ducato towbar fitted shouldn't be much more than about £300 but I guess it might be a lot more for yours but the quote does still seem a bit high.

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