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Can a Mercedes-Benz X-Class tow
a Roadstar Caravans Sirius?

X250d (4-Cyl) (2018), checked against the manufacturer's published figures.

Yes

The Roadstar Caravans Sirius's published ATM of 3,150kg sits 350kg under the Mercedes-Benz X-Class's 3,500kg braked towing rating.

Braked towing ratingThe Mercedes-Benz X-Class, manufacturer published
3,500kg
Towball ratingThe Mercedes-Benz X-Class, manufacturer published
350kg
ATMThe Roadstar Caravans Sirius, maximum loaded weight, manufacturer published
3,150kg
Ball weightThe Roadstar Caravans Sirius, manufacturer published
240kg

Figures are the manufacturer's published ratings.

Yes, this pairing is inside the published ratings

The X-Class has a towing capacity of 3,500kg, which comfortably handles the Sirius (3,150kg).

This is a guide off published figures, not a compliance check.The legal numbers are the compliance plates on your car and the van. Weigh the loaded rig at a public weighbridge to know for sure, then read the ticket.

Published figures are where a trip in the Mercedes-Benz X-Class with the Roadstar Caravans Sirius starts, not where it ends. What you pack, and what is already bolted to the car, moves the real numbers from the day you hitch up.

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See all caravans you can tow with a Mercedes-Benz X-Class →

Mercedes-Benz X-Class

X250d (4-Cyl) (2018)

Specs apply to 2018-2020 models
Tow capacity3,500kg
Ball weight limit350kg
GCM6,130kg

Roadstar Caravans Sirius

Price on application

Sirius
ATM (max weight)3,150kg
Ball weight240kg
View caravan details

Always check your compliance plate

Online databases use factory-standard specs. They don't know about your bullbar (adds weight), suspension upgrades (can change GCM), or how much you're carrying.

How to find it

Open your passenger or driver door. Look for a silver or black metal plate riveted to the pillar. This plate overrides everything you read online.

Why the numbers move once you load up

The figure most often left out of the sum is payload, which is everything you add after the vehicles leave the factory.

  • • Bullbar and winch: both add weight to the front of the car, and it comes out of your payload.
  • • Passengers: everyone in the car comes out of its payload, not just the driver.
  • • Tow ball mass: this comes out of your car's payload, not just your towing limit.

Always weigh your rig fully loaded.

Where to get it weighed, and what the ticket tells you.

This pairing works - now get the required safety gear

Since this pairing sits inside the published ratings, ensure you have the required safety gear. Mirrors and a brake controller are mandatory in Australia for this weight.

Towing mirrors

Legally required when the van is wider than your car

See options →

Brake controllers

Mandatory for trailers over 750kg GTM

See options →

Weight distribution hitch

Keeps the rig level and steering weight on the front axle

See options →

Not sure which brake controller suits your car, or whether it already has one built in? Read the brake controller guide

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Check another combination

Treat this as a guide off published figures, not a compliance check.The legal numbers are the compliance plates on your car and the van, and where we do not hold a published ball weight we estimate it at 10% of ATM.Weigh the loaded rig at a public weighbridge to know for sure, then read the ticket.

Where the published weights sit close together, how you pack changes what the scales say. Heavy items ride best low down and over the caravan's axles, and whatever sits on the towball is carried by the car rather than by the van.