UNLADEN WEIGHT

gwyntaxi

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Jun 9, 2009
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I have a 2005 Hymer 644 Starline, but for the life of me I cannot find out the UNLADEN weight,unless of course i take it to a weighbridge,which is something I REALLY DON 'T fancy as it would probably take
me a few days to completely empty it,and then find somewhere to put it all. It is not shown on the VIN plate or in any of the user literature, does anyone out there have any suggestions without resorting to the above...
Thanks in anticipation.gwyntaxi.
 

tonka

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Unladen is not shown on motorhomes..
If you could find some original spec as it came from the factory it would be of little use as anything added by previous owners or yourself would alter it..

it's a good reason why not to trust quoted payloads when vans are for sale, unless it's brand new from factory and you know nothing has been added..
 
D

Deleted member 29692

Deleted User
Even if you could find something in Hymer literature somewhere it would probably be made up hopelessly optimistic numbers. If you really want to know accurately a weigh bridge is the only way. BTW it won't be "unladen weight." It will be MIRO (mass in running order) which makes some allowance for fuel, water and driver.
 
Oct 12, 2009
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Gwyntaxi,

The only place you can get Unladen Weight is from the chassis manufacturer.
As NickNic said, MIRO is more relevant, although not quite the same thing as ULW.
In completely unloading your van you will get the TARE weight, not ULW.
It would be a wasted exercise.

Just curious...why do you want to know the ULW?
It's only really of interest in determining what type of vehicle it is (motor car, heavy motor car, locomotive, etc.)

Are you trying to figure out your payload?
 
Dec 14, 2013
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over a Year Yay................
why bother emptying it weigh it as it is & see where you stand then you have a rough idea of how much leway you have espesially if your current contents are regular items.
you can always add & subtract later by weighing individual items to remove or add.
 

DP+JAY

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I'm guessing it's for speed limits.
No easy way I'm afraid, remove everything that's not screwed down & go to the weighbridge.
 
Oct 12, 2009
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I'm guessing it's for speed limits.
No easy way I'm afraid, remove everything that's not screwed down & go to the weighbridge.
That wont give you the ULW, just the Tare Weight.
A vehicle cant be stripped to it's ULW.

Unladen and unloaded are not the same thing.
 

Badknee

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I have just weighed mine to find out a starting weight and it was 3240 with me in it on the weigh bridge, half a tank of fuel and the water tank full, grey waste empty.
I did this because I couldn't find the converters plate (Autocruise) anywhere and as been said there have been a lot of bolt on extras since it was build, tow bar, bike rack, air suspension and the like.
Sorry my friend but empty would be the best or full and take a guess.
 
Jul 29, 2012
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Not long enough, but a little common sense helps..........
We take ours before each trip to local WB, but cannot understand why people fill up the water tank ( thats on average 80 kg's of weight ( our water tank is 120lts - 120kg ish...... ) you don't need to carry. When we travel we carry 10lts in a bottle, enough to cover travel and fill up or top up enough to live on arrival. Loaded up weight is the best way as you know what you have left or in some cases what you have to remove!!!!
 
Oct 12, 2009
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Agreed, as near as you can get, but the OP wanted ULW for some reason still not clear.
Not possible on a weighbridge.

Once it's stated by the manufacturer it's a done job.
Cant be altered.
 

DP+JAY

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My understanding was any " fixture" was to be included in the ULW?
Eg. A manufacturer builds a chassis cab & states the ULW.
The body builder then adds the body which now has to be added to the ULW?
At a later date a tail lift is fitted, this also has to be added to the ULW?
It is also not uncommon for commercial vehicles to have a body change during their life
which also changes the ULW?
So does not any "fixture" to a motorhome (awning,towbar etc.)not alter the ULW?

From VOSA Testers manual.
ULW Unladen Weight - The weight of a vehicle inclusive of the body and all parts which are ordinarily used with the vehicle when working on a road.
Unladen weight does not include the weight of water or fuel used for the propulsion of the vehicle, or of loose tools and loose equipment.
 
Last edited:

pappajohn

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So does not any "fixture" to a motorhome (awning,towbar etc.)not alter the ULW?

From VOSA Testers manual.
ULW Unladen Weight - The weight of a vehicle inclusive of the body and all parts which are ordinarily used with the vehicle when working on a road.
Unladen weight does not include the weight of water or fuel used for the propulsion of the vehicle, or of loose tools and loose equipment.
Rightly so, water, fuel, tools, driver, passengers etc are not part of the structure and are removable so constitute carried goods and contribute to the gross weight.

Kerb weight includes an allowance for driver, fuel, oil, cooling water etc but not tools...things need for the basic operation of the vehicle.
 
OP
gwyntaxi

gwyntaxi

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Gwyntaxi,

The only place you can get Unladen Weight is from the chassis manufacturer.
As NickNic said, MIRO is more relevant, although not quite the same thing as ULW.
In completely unloading your van you will get the TARE weight, not ULW.
It would be a wasted exercise.

Just curious...why do you want to know the ULW?
It's only really of interest in determining what type of vehicle it is (motor car, heavy motor car, locomotive, etc.)

Are you trying to figure out your payload?
Thanks for your interest,yes,the main reason for my curiosity is to find out what the actual payload is
 
OP
gwyntaxi

gwyntaxi

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PHEW,well,thanks for all the replies and the interest shown by ALL of you I didn't think such a mundane sort of subject would attract so much attention ,many thanks to all you contributor's,gwyntaxi
 

DP+JAY

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Ah, different ball game. The ONLY way to find that is take it to a weighbridge, with every thing you are likely to travel with ( including passengers) and get the axles weighed.
Only then can you really know what payload you have & on which axle.
The manufactures MIRO (mass in running order) will give you an idea BUT be careful as they are known to air on the optomistic side. Plus it does not take into account any "extra's", many of which you might think are "standard", eg. oven, awning,bike rack etc. Just because the dealer sold it like that doesn't mean it's standard.
 
Nov 17, 2008
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I have a 2003 B630 Star-Line on a 316 Sprinter chassis. It is slightly shorter than your B655 (I think that is what you have as there isn't a B644 Star-Line). The MIRO will depend on the chassis, engine and gearbox plus any additional fittings. The Hymer 'book' figure for a B630 MIRO is 3,000 kg (yours will be a bit higher - say 3,050 kg). But that is for a van based on 313 Sprinter chassis with manual gearbox and no extras. The 31x chassis has a GVW of 3.8 tonnes.
If yours is on a 41x chassis, the MIRO will be higher still, but then so will the GVW - 4.6 tonnes (unless it's been down-rated).
As an indication of what else to take into account, I have shown below the calculations I have used, as advised in the Hymer model catalogue and from known weight data.

MIRO est.jpg
 
OP
gwyntaxi

gwyntaxi

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Jun 9, 2009
423
198
,Swansea
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hymer starline 655
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42yearscaravanning&motorhoming
I have a 2003 B630 Star-Line on a 316 Sprinter chassis. It is slightly shorter than your B655 (I think that is what you have as there isn't a B644 Star-Line). The MIRO will depend on the chassis, engine and gearbox plus any additional fittings. The Hymer 'book' figure for a B630 MIRO is 3,000 kg (yours will be a bit higher - say 3,050 kg). But that is for a van based on 313 Sprinter chassis with manual gearbox and no extras. The 31x chassis has a GVW of 3.8 tonnes.
If yours is on a 41x chassis, the MIRO will be higher still, but then so will the GVW - 4.6 tonnes (unless it's been down-rated).
As an indication of what else to take into account, I have shown below the calculations I have used, as advised in the Hymer model catalogue and from known weight data.

View attachment 45607
Hello there JeanLUC, Sorry,my mistake mine is the 655 starline,don't know what I was thinking of there,the base is the mercedes 316cdi. but as I said in an earlier email it does not show the unladen weight,or MIRO as it has now become known,I keep harking back to my caravanning days of years ago,the VIN plate does state 3800 as you say,but it's a pity that the manufacturer is not legally obliged to include the MIRO if they did I think as consumers we'd have more of a level playing field, thanks for your help and interest,gwyntaxi.
 
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