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You need to know the gross train weight (GTW) of the motorhome and the gross vehicle weight of the Yaris. Add the GVW to the weight of the Yaris and this should not exceed the GTW. That will at least give you some idea. However, it will not give you any idea of performance which might be a little slugish with only a 2litre engine?
The GTW should be on your weight plate.
peedee
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Thanks so far.
The weights shown on the plate are:-
3400 kg
4600 kg
1750 kg
1900 kg
So I presume the 3rd and last weights refer to front and rear even though these add up to 3650 kg (getting confused now)
As I mentioned, the actual weights are:-
Fr 1320 kg
rear 1560 kg
overall 2920 kg
These were obtained with full tanks, 2 up and quite a lot of odds and ends (getiing more confused now)
I understand the kerb weight of a typical Yaris is 1115 kg and the GVW is 1525 kg
So does all this mean that I won't be selling my MHome to this interested party??
It is quite normal for the sum of the individual axle weights to exceed the MGW. This helps with the loading as otherwise it would need precise placement as you approach MGW.
Exceeding the Maximum Train Weight is a technical offence and is not the MGW of the towing vehicle plus the MGW of the towed trailer but the actual weights at the time that will matter. If you can guarantee that the Train Weight is 4600kg or less then you will be legal.
Assuming you are confident that when loaded with yourself plus passengers and all you have that you are at 2920kg then you could tow a 'trailer' weighing 1680kg.
Assuming he's got a petrol Yaris he's definitely ok, and with a diesel one he's reasonably ok but would need to be careful not to leave junk in it when towing it.
Kerbweight of Yaris diesel is 1115kg, petrol 1055kg. I've not weighed my a-frame and mountings, but I'd say 50kg is realistic.
Going off the plated weights of your van, assuming running at full load the van would be 3400kg, max train weight 4600kg, so 1200kg max weight of toad. But is there already a towbar fitted? If not that's prob another 50kg or so that'll be lost.
The caveat I'd put on that is to make sure you're looking at the final VIN plate, not the one fitted by Fiat. E.g. on mine the max train weight is approx 5750kg, but the chassis extensions fitted by Autotrail reduce the figure on the final VIN plate to 5030kg.
If the van isn't being run full, there's more headroom, e.g. if actual weight is 3200kg, he'd have 1400kg spare for the Yaris. Your numbers seem to suggest that. However, I don't believe your quoted actual figures as they break the laws of physics unless you have some kind of helicopter arrangement on the roof...your overall weight appears to be 40kg more than the sum of the weight of the individual wheels...
Your max towing limit is 1200kg,and I believe the kerb weigh (IF EMPTY) is the figure to use for the towed trailer, so 1115kg + say 15kg for the aframe = total 1130kg would leave you approx 70kg under your towing limit.
However, I don't believe your quoted actual figures as they break the laws of physics unless you have some kind of helicopter arrangement on the roof...your overall weight appears to be 40kg more than the sum of the weight of the individual wheels...
I have often wondered about that, but I'm sure I have seen it said that this is normal.
There still seems to be a bit of confusion over which weight to go by for the Yaris. Some say GVW, some say kerbweight.
Thanks for all replies so far, but is there a definitive answer that I can be confident with.
Most of the CI range quote for 1200kg - my Merc based CI is 1200kg. What I did, to be sure, I took my KA to a weigh bridge in normal running mode. Normally you go by the kerb weight
______________________________________________________________ Richard
Happy Holidays to everyone for 2012
The above is only a personal opinion
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