GLS Class (X167) Produced 2020 to present

GCM Gross Combine Mass

Old Oct 6, 2020 | 02:25 AM
  #1  
kiwioz's Avatar
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GLS 2020
GCM Gross Combine Mass

Hi all
Can someone please tell me what the GCM Gross Combine Mass is on a GLS 450 please.

I am wanting to work out what size Caravan I can tow.
GCM = Gross Combine Mass
GVM = Gross Vehicle Mass
GCM of ? kg – GVM of 3300kg = ? kg towing capacity

Thank you guys, going nuts trying to find this info

Craig
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Old Oct 6, 2020 | 01:36 PM
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Originally Posted by kiwioz
Hi all
Can someone please tell me what the GCM Gross Combine Mass is on a GLS 450 please.

I am wanting to work out what size Caravan I can tow.
GCM = Gross Combine Mass
GVM = Gross Vehicle Mass
GCM of ? kg – GVM of 3300kg = ? kg towing capacity

Thank you guys, going nuts trying to find this info

Craig

Gross Combined Weight (or mass) is the maximum allowable mass of the vehicle+contents and towed equipment such as a caravan+contents.

Gross Vehicle Weight (or mass) is the maximum allowable mass of the vehicle+contents.

These figures are established for safety reasons:

- stopping distance and avoidance of brake system overheat or failure
- steering stability
- suspension integrity and ability to control the wheels
- transmission and axle(s) longevity and avoidance of overheating
- cooling system performance and avoidance of overheating
- body structure failure (extreme case) and longevity in the case of fatigue cracks to critical components such as bumpers and crash energy absorbing structures

Do not exceed the manufacturer’s ratings in these categories. For your sake and for the sake of others.

Last edited by chassis; Oct 6, 2020 at 01:48 PM.
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Old Oct 6, 2020 | 02:45 PM
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GLS 2020
Originally Posted by chassis
Gross Combined Weight (or mass) is the maximum allowable mass of the vehicle+contents and towed equipment such as a caravan+contents.

Gross Vehicle Weight (or mass) is the maximum allowable mass of the vehicle+contents.

These figures are established for safety reasons:

- stopping distance and avoidance of brake system overheat or failure
- steering stability
- suspension integrity and ability to control the wheels
- transmission and axle(s) longevity and avoidance of overheating
- cooling system performance and avoidance of overheating
- body structure failure (extreme case) and longevity in the case of fatigue cracks to critical components such as bumpers and crash energy absorbing structures

Do not exceed the manufacturer’s ratings in these categories. For your sake and for the sake of others.

Thanks for all this, I appreciate it.

Where do I find what the Gross Vehicle Weight (or mass). I have looked in the manual, even rang my dealer. No one can tell me.

Thanks
Craig
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Old Oct 6, 2020 | 05:00 PM
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Based on dealer ordering guide, the “curb weight” for the GLS450 is 5,467lbs and the GLS580 is 5,754lbs. So just add the weight of the other stuff (passengers, cargo, etc) to get the gross vehicle weight.
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Old Oct 6, 2020 | 05:17 PM
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The information is in the drivers side door jamb. For North America the tow rating is 7700 lbs or 3500kg. every individual vehicle has different total weight and carrying capacity based on your options. May differ based on Australia regulations so I would not rely on the information from another country.
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Old Oct 6, 2020 | 05:56 PM
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GLS 2020
Hi all

Thanks for the input here.
What I am concerned about is what is written in this article.
These are the numbers I have
Gross Vehicle Weight Rating (GVM ) = 3300kg
Curb Weight = 2450kg
Payload = 850kg

What I can not find out is the GCM = Gross Combine Mass
Please see below.


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Old Oct 6, 2020 | 10:30 PM
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chassis's Avatar
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@kiwioz You want to tow a caravan, correct? With a 2020 GLS450? The towing capacity for this vehicle in the US market is 7,700 lbs or 3500kg. That's what you need to know.

The caravan plus all of its contents (luggage, dishes, drinking water, television, everything) must not exceed 3500kg. Towing capacity is only permissible when the caravan is braked (for example with an electric brake system).

Gross vehicle weight is available for your viewing on the B-pillar. Go to a dealer and check this, if you have not yet taken delivery of your vehicle. The gross vehicle weight on the B-pillar, plus the towing capacity of 3500kg (US market example) gives you the gross combination weight. Take note that the gross vehicle weight must account for trailer tongue weight. So:

Gross vehicle weight
- tongue weight
- curb weight
= payload inside the vehicle (passengers and luggage)


Originally Posted by kiwioz
Hi all

Thanks for the input here.
What I am concerned about is what is written in this article.
These are the numbers I have
Gross Vehicle Weight Rating (GVM ) = 3300kg
Curb Weight = 2450kg
Payload = 850kg

What I can not find out is the GCM = Gross Combine Mass
Please see below.


Reply
Old Oct 10, 2020 | 12:58 AM
  #8  
kiwioz's Avatar
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GLS 2020
Update

Just received this from my dealer

GCM for GLS 450 is 6740kg

thx for everyone’s input

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