Owyn overland (#995)

OWYN "Only What You Need" In my opinion the extra cost and weight of a 4x4 version of an on-road truck (if available) is not worthwhile. On my travel to remote places almost all local truck and busses are rear 2 wd. In my case i will ad Rear diff lock, slightly bigger wheels and a departure angle off ca. 30°. On the floor plan the main idea is to be able to use all functions such as sleeping, sitting, bathroom use and cooking for two people without making room for each other. The choice for a Mercedes Vario is a compromis: On weight (7,5 T) , size ( with use off overhang it will fit still on normal parking spot) Height (ca. 3.25 m) Modern engine (acces to city with environmental zone)

General Information

Manufacturer and model Mercedes Vario 818D
Name Owyn
Country Netherlands
Year of manufacture 2008
For sale? no


Engine type OM 904 euro bleutec4
Cubic capacity 4.249 cc
Number of cylinders 4
Horsepower 177
Torque 675


Radformel (4x2, 4x4, 6x6, 8x8) 2x4 or 4X6 if you count tyre's ;))
Wheel base 3.700
Number of seats 2
Tyre size not yet fitted (9.5R17.5)
Rim size R17,5
Tank capacity 90L + auxiliary tank
Diesel filter no
Air suspension on de rear for comfort and easy leveling
Permanent or manually selectable 4-wheel drive no
Diff locks self build rear lock


Manufacturer of the cabin selfbuild
Inner dimensions (LxWxH) 448X217X210
Outer dimensions (LxWxH) 460x229x220
Cabin material sandwichpanel
Kind and thickness of insulation roof and walls 60 mm, floor 80 mm
Number of beds 210x140
Windows 5 real glass double plane windows 500X900 2 roof hatch 40x40
Subframe Yes self build. With build in torsion possibility

Floor plan

Explanation of floor plan
Rear main bed 210x140 with 2,5 M3 storage underneath . Dinette aria with sliding table. in the front left bathroom and on the right kitchen. In the front a door with acces to cab (future) and acces to storage on top of the cab.


Material of furniture 15 mm marine grade plywood
Walls painted sandwich panel, Cork floor in main aria, PVC lining in bathroom and oak countertop

Cooking stove

Cooking stove 2 burner
Gas installation LPG tank out side filling

Refrigerator; cool box

Manufacturer and type of fridge / cooler Kissmann KB100 ENI
92 L with small freezer

Power supply

Voltage in the chassis 24v
Voltage in the cabin 12v and 220
Charging converter 24V-12V no
110V / 230V in the cabin? yes
Inverter Westech 12v-220v 3000w
possible extra separated alternator only for Cabin

Capacity of batteries in the cabin

Capacity of batteries in the cabin 2x 12v 100 amp
Battery type to be defined
Battery charger for cabin batteries solar+possible own alternator+build in charger inverter
Battery management victron
The batteries and the water tank are just above the rear axle in the middle of the vehicle

Power generation

Solar capacity to be defined
Solar controller to be defined
Fuel cell no
Power generator no

Heating system

Manufacturer and type of heating system Wallas D30 hot air system on Diesel
Warm water processing tankless heater
Cab heating factory system
Stainless steel exhaust and combustion air intake .

Gas system

Explanation of gas system
LPG bottle only for cooking and hot water (under construction)

Water system

water flow shurflo pump
Water filtration system to be defined
Capacity of fresh water tank(s) 300L Total 5x 60l The water tanks are just above the rear axle
Capacity of waste water tank(s) 140 L
5 x 60L food grade containers that will individual selectable.
Hot water for wet room,kitchen and external shower will be provided by tankless water heater.


Manufacturer and type of toilet self build compost toilet separating liquid and solids
Capacity of black water tank no
under construction

Vehicle accessories

Rear carrier no
Roof rack no
Storage boxes on chassis
Outside cooking facilities to be defined
Awning to be defined
Retractable terras. Will be sliding from under cabin.
Recovery system to get unstuck
Small workshop in rear storage
released 07.02.18 
owner Owyn 
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