Hymer B-class Master Line: New top model on Mercedes Sprinter
With much fanfare, Hymer recently introduced its newest top model, the Hymer B-class Master Line, the second series of campers based on the new front-wheel-drive Mercedes Sprinter. But even bigger, even more luxurious, and packed with innovative safety systems.
The Master Line is immediately the top model among Hymer integrated motorhomes, a nose length ahead of the previous top model, the exclusive Hymer B-class SL on the well-known Fiat Ducato chassis. The Master Line boasts the familiar star on the bonnet and is available with two layouts: the 780 with single beds and the 790 with the centrally located queen-size bed.

C-license required
Under the bonnet, the brand new 2.2 liter Euro 6d engine of the Mercedes Sprinter, with 105 kW/143 hp, shines. Optionally, you can also choose the 177 hp version, and we highly recommend it for this 7.89 meter long hotel room on wheels. This behemoth already weighs 3,480 kilos empty, and the maximum total weight is 4,430 kilos, which can be upgraded to 4,500 kilos. This gives you a payload of no less than 1,020 kilos. With such figures, it is immediately clear that you need a C-license.
Super Light Chassis
And while we're ticking off options on the option list: choose the 9-speed automatic transmission right away, instead of the manual 6 gears. Just like the Modern Comfort, the Master Line also features the award-winning Super Light Chassis, which saves tens of kilos by making some chassis parts out of plastic. In the chassis, water tanks are frost-free hidden in a double floor, as are the technical installations.
Another peculiarity we discover at the front of the camper: it has a kind of kink on both sides, above the front wheels. This makes the Master Line look sporty and dynamic. Another striking detail: the windscreen, which seems to seamlessly merge into the side windows at the sides. Chapeau! Too bad the radiator is not protected against stone chips.

Seating area
The wide entrance door is equipped with 'keyless entry'; the key can therefore remain in your pocket. Once inside, the door pulls itself into the lock with a subtle hum. The interior looks understatedly chic, with a choice of two wood colors: light oak combined with matte white cabinet doors, or a dark walnut color with high-gloss white cabinet doors. In the dashboard, the enormous multimedia/navigation system, which comes directly from the Mercedes E-class passenger car, sparkles. With 'Hey Mercedes', the computer comes to life and voice control can be used for navigation and telephone commands, for example.
The electronic handbrake is ideal; it doesn't get in the way when you want to turn the driver's seat around. With the pilot seats turned around, a cozy seating area is created (with six USB sockets!) and the drop-down bed is hidden in the cabin ceiling.
Cooking and sleeping
The kitchen is equipped with a gas hob combined with induction – handy when you're hooked up to electricity. Opposite the kitchen, we see a large refrigerator with a freezer compartment, whose doors hinge on both sides – a Dometic patent from last year. Of course, the Master Line has a separate shower and separate toilet area, the door of which can be fully opened to create a large combined bathroom across the full width. In the back, we find the bedroom. In the B-Master Line 780, these are two single beds that can also be converted into a double bed. In the 790 version, you have a spacious queen-size bed in the same place, which you can access from both sides.

Installations
The Master Line is fully equipped. Alde liquid heating and underfloor heating, crosswind assist, brake assist, adaptive cruise control, rain sensor, and a large 32” TV screen that electrically retracts into the backrest of the L-shaped sofa – you name it, it's there.
Conclusion camper test Hymer B-class
With the B-class Master Line, Hymer once again has a top model on Mercedes. The camper is luxuriously equipped with a lot of attention to design. There is not much to criticize about the Master Line – perhaps one small thing: the pedestals under the driver's seats. There should have been a cover cap there, because now you're looking at the bare, white steel. But that's nitpicking.
Pros & Cons
+ styling and innovation
+ payload
+ spacious bathroom

Technical data
CHASSIS/ENGINE
Chassis Mercedes Sprinter with SLC chassis
Engine 314 CDI 2.2 143 hp (standard)
Maximum power kW/hp 105kW/143hp at 3,800 rpm
Maximum torque 330Nm at 1,200 rpm
DIMENSIONS
Length: 789 cm
Width: 235 cm
Height: 296 cm
Headroom: 198 cm

WEIGHTS
Maximum mass: 4,430kg (optional 4,500 kg)
Ready-to-drive weight: 3,480 kg
Payload: 950 kg
SEATING* & SLEEPING
Number of seats/berths: 4/4
Rear beds: 2x 205×89 cm (780) or 1x 200×156 cm (790)
Drop-down bed 194×145 cm
(*seats with seatbelts)
Price from approximately € 120,000
More information can be found at www.hymer.nl
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