But the original spec states MIRO of 1640kgs so it could be the OP's caravan is a higher spec? Either way, the dealer will be able to confirm. Just looked at the specification of the caravan, it sure looks to be an impressive set-up!
The Grande definitely has a MTPLM of 1820kg therefore at 1863kg it has had the upgrade. https://www.swiftgroup.co.uk/caravans/product/1306/swift-challenger-grande/#configurator
BUT the photo the OP took of the plate shows an MIRO of 1683kgs, the Swift spec shows it as being 1640kgs, so the MIRO is higher than the spec states.
We'll have to wait for him to get dealer confirmation as an upgraded MTPLM USUALLY takes it up to the axle/chassis maximum rating which (from what I've seen) is usually a round number (1900kgs, 1950kgs, 2000kgs etc). An upgrade to 1863kgs (to me) just doesn't look right.
Ask the dealer exactly what the upgrade will take it to as folks on here (including me!) are just guessing.
You will very quickly eat up a payload of 110kg. We try and load the car as much as we can.
I was referring to MTPLM and not the MIRO as the MIRO can never be a fixed value and can fluctuate by several or more kgs.
In olden days didn’t there used to be a 2-3% potential variation in Ex works weight due to variations in materials and/or moisture levels in the fabric of the caravan. That’s 20-30 kg on a 1000 kg caravan. That’s why I would weigh my caravans on a public weighbridge in empty state and at full load. But even doing that there’s a tolerance on the day. The advantage modern caravans have is that these days much more of the fabric of the caravan is moisture impermeable. You can only do your best with the figures you have obtained for car and caravan.
I'm sorry I got you location wrong, though the information I gave may help others.
I don't think you need to be overly concerned about the car, it seems to have plenty of scope for towing heavy caravans. As I think you have found the challenge is going to be the caravan and keeping it within its MTPLM.
Whilst the caravan manufacture does state the caravan's MIRO, to be honest that cannot be assumed to be accurate, due to manufacturing tolerances, and other imperfections including the weather it can vary. The only way of knowing it's weight is to measure it when it is truly empty.
The MTPLM is significantly more important. It should not be treated as a target value, you must aim to keep the caravans all up weight under the MTPLM. This is why ensuring you have the correct MTPLM figure is essential.
I don't think you need to be overly concerned about the car, it seems to have plenty of scope for towing heavy caravans. As I think you have found the challenge is going to be the caravan and keeping it within its MTPLM.
Whilst the caravan manufacture does state the caravan's MIRO, to be honest that cannot be assumed to be accurate, due to manufacturing tolerances, and other imperfections including the weather it can vary. The only way of knowing it's weight is to measure it when it is truly empty.
The MTPLM is significantly more important. It should not be treated as a target value, you must aim to keep the caravans all up weight under the MTPLM. This is why ensuring you have the correct MTPLM figure is essential.
The 2023 Swift Technical Handbook has the following information : -
So, an MTPLM upgrade would give you a worthwhile increase.
So, an MTPLM upgrade would give you a worthwhile increase.
Rather than guessing what is the 'upgrade' or not just look at the statutory weight plate on the caravan, not the label by the door. That will tell you what the true MTPLM is.
True MTPLMs are never 'crooked' values. They are always in multiples of 50kg.
I wasn't referring to any upgrade, but to the official MTPLM on the statutory plate. That will always be a multiple of 50kg.
I believe it was +/- 5% in the "olden" days - there was at least one occasion when a magazine checked the ex-works weight and it was more than the gross weight (MTPLM in modern terms).
As wood has gradually been reduced or eliminated in modern caravans, the variation should be a lot less.
But I know that at least some caravan manufacturers still quote a caveat of 5% on their stated MIROs which isn't surprising really because the MIRO is not the ex works weight of the caravan in question, but the weight of that caravan of the same model that the manufacturer submitted for type approval and that could have had a different specification.
Quoted MIROs are therefore only a very rough guide of a caravan's actual weight.
Lutz, we're currently looking at Adria's and their tech-spec quotes TWO "empty" weights, any idea what the difference is between the two parameters, is it just one includes battery etc?
Unladen weight is, by definition, a 'dry' weight. Mass in running order on the other hand will include , for example, a 90% full onboard water tank, if one is fitted, and a gas bottle, the EHU cable, etc. I doubt whether it includes a battery though unless the manufacturer has had the caravan type approved with a battery fitted, which is unlikely as it's usually a dealer fitment.
That’s a brute of a battery fir a caravan. Because MIRO seems to have some variation between makes and size of caravan it is best to check the Owners Manual or contact the makers Tech Support. Since MRO/Miro was introduced my vans did not include battery in MRO/MIRO.
More likely than not it will not be included in the MIRO but even if it were, don't rely on the MIRO figure (for reasons that I have mentioned before so many times). Always weigh your caravan empty first. If you can't weigh it, maybe because you don't have it yet, always add the 5% tolerance to the maker's quoted MIRO to avoid a possible shock later.
Last edited:
Depends on caravan as our battery is included in the MIRO as is the solar panel and wastemaster in addition to all the normal things.
If the OP were abroad and bought his caravan there it wouldn't have an NCC label by the door (or anywhere else).
One can't have two legal MTPLMs on the same caravan. Either a permissible laden mass is a maximum or it isn't. How can two values which differ from one another both be a maximum? Only one can be legal.
TRENDING THREADS
-
-
-
-
12v supply to fridge fault after testing voltage !! Help please
- Started by Joggerdude
- Replies: 4
-
-
-
Facebook
Twitter