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Can a Mercedes-Benz X-Class tow
a Willow RV Illawarra Series?

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

Close to the limits

The Willow RV Illawarra Series's published ATM of 3,450kg sits 50kg 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 Willow RV Illawarra Series, maximum loaded weight, manufacturer published
3,450kg
Ball weightThe Willow RV Illawarra Series, manufacturer published
253kg

Figures are the manufacturer's published ratings.

Possible, but close to the limits

Loaded to its published ATM, the Willow RV Illawarra Series uses all but 50kg of what the Mercedes-Benz X-Class is rated to tow, so there is little room left for what you pack.

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.

A towing rating on its own rarely settles a pairing. What decides it for the Mercedes-Benz X-Class and the Willow RV Illawarra Series is the published figures taken together: the weight the caravan carries when it is loaded, the weight it puts on the towball, and the combined limit the car holds for both of them at once.

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Mercedes-Benz X-Class

X250d (4-Cyl) (2018)

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

Willow RV Illawarra Series

Price on application

Illawarra Series
ATM (max weight)3,450kg
Ball weight253kg
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 is inside the published ratings, with not much room left.

Improve your stability

The published weights sit close together here. A weight distribution hitch spreads some of the towball load onto the car's front axle, which is what the ball weight takes off it.

Shop weight distribution hitches

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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.

Published specifications are the starting point rather than the finish line. The numbers that decide anything are the ones your own loaded rig puts on the scales.