Hunting the eierlegende Wollmilchsau

Buying a van involves many considerations (see our Choosing a camper van series for previous thoughts on this). When purchasing a van to live in for a considerable amount of time—rather than just for weekending or taking 1-2 week holidays—you may find yourself hunting for the eierlegende Wollmilchsau (eWs in short form). This needs a little explanation: the plain translation of the German term is “egg-laying wool & milk producing sow”. It’s something akin to the English phrase “Jack of all trades, master of none”, but expecting the aforementioned Jack to be master of everything. Hunting the eWs is like trying to find a unicorn…. no harm in trying, even when you know it doesn’t exist! 🦄

We knew there would have to be compromise, but identified the following critical attributes for our “ideal van”:

  • Big enough—but not too big (no clear definition of big here; in Europe this may be different due to the different road conditions, from Autobahn to small Italian or Spanish village streets)
  • Diesel heating, providing freedom from having to swap gas bottles too frequently and at inconvenient times
  • Good beds, given sleep is important and so is ease of access—no climbing over each other in the middle of the night, if you please
  • Plenty of light and windows to see the amazing countryside
  • Staying within our pre-defined cost envelope.

However, one of the main factors we had to adjust our expectations to match was model availability. We didn’t have 6 months to wait for the right vehicle (although could be willing to trade again if the eWs turned up late). Also, there’s geography to contend with. NZ consists of two islands and we are North Island based. Getting to view a vehicle on South island would have been far from impossible, but logistics are complicated and the expense significant. It would have to be a true eWs to make the effort and cost worthwhile. As we said earlier, you’re best not buying a van that you haven’t seen and explored with all your senses, in person. We like cats, but cats in bags not so much!

Be realistic: are we wanting a bathroom or a wellness oasis?

S

In the event, we did months and months of research on YouTube and Trade Me before arriving in NZ. The upshot of this was that we arrived knowing the pros and cons of NZ-built vs. imported (European) motorhomes, and we knew what we could expect for our budget (in terms of model, age, mileage, general condition, etc.). We didn’t feel obliged to look on forecourts up and down the country before making an informed decision.

Try before you buy—maybe.

RV Super Centre (RVSC) offer prospective customers the option to “try before you buy” (info here). As they’re right next to Auckland Airport we thought this could be a sensible option, as we could rent our preferred model from the outset. Rentals are for a minimum of 5 days and are booked directly with e.g. Britz, not via the sales team. However, RVSC had no refurbished stock of our preferred model due in for the next few months. Furthermore, we didn’t fancy waiting 8-12 weeks for post-rental refurbishment if we said “we’ll take one”. Plan B was to borrow a car to tour the dealerships to see what was available immediately. But Plan C intervened: we purchased privately via Trade Me (after viewing/ test driving), foregoing the 12 month warranty a dealer would have offered.

Tips and tricks

Certification requirements

As new-to-New Zealand motorhome owners, we had to get our heads around the many legal—and otherwise sensible—driving/ safety requirements. Again, we researched this in advance, so went into a purchase negotiation prepared.

Requirements
Certificate of Fitness (CoF)A CoF is required every 6 months for vehicles > 3750kg (lighter motorhomes get a yearly Warrant of Fitness, or WoF instead)
Certified Self-containment (CSC)Certification to NZS 5465 means a vehicle meets the ablutionary and sanitary needs of the occupants for a minimum of 3 days, without requiring any external services or discharging waste; blue CSC stickers allow stays at freedom camping locations.
Vehicle licenseKnown as the “rego“, a license is required to use a vehicle on the road; this also indicates if the vehicle is subject to RUCs.
Vehicle insuranceAlthough not compulsory, third party insurance is recommended; only Covi and Star will insurance motorhomes that are permanently inhabited.
Breakdown assistanceOptional; offered by e.g. Covi as Wings Roadside and the AA via a Motorhome Plus upgrade.
Warrant of Electrical Fitness (WoEF)A legal requirement, with renewal every years.
Habitation battery checkNot required for Curiosity, which has a maintenance-free AGM (see below).
Vehicle serviceThe Mercedes-Benz cab should be serviced according to the manufacturer’s schedule (time or distance intervals).
Habitation serviceOptional; packages are offered e.g. by RV Super Centre.
Road User Charges (RUCs)RUCs are kilometre units purchased by diesel vehicles in advance online or from NZTA agents (i.e. a user-pays tax); the distance travelled on Curiosity’s hubodometer must not exceed the units displayed in her windshield.
Certificate of LoadingRequired by heavy vehicles with a CoF, this displays info including tare, GVM, number of seatbelts, etc.
Gas Warrant of Fitness (GWoF)Advised, but not a requirement.
Gas Safety CertificateA legal requirement for new installations (e.g. burners, boilers); we were able to locate Curiosity’s via the Work Safe website using the VIN.

Pre-purchase inspection and vehicle info

The Automobile Association (AA) offer a pre-purchase vehicle inspection ($NZ184 for members), however this is only available for motorhomes 3,500kg GVM or less. Similarly, Vehicle Testing New Zealand (VTNZ) will not inspect heavier vehicles as part of their $NZ199 assessment.

Free basic vehicle info can be confirmed via CarJam with a plate number or VIN; a NZ history and check for any debt owing costs $NZ14.75. A similar vehicle information report from MotorWeb costs $NZ19.95.

You can, of course, learn a lot by having a good poke around—as we did on on viewing and subsequently. Below follows an introduction to the features of our River Rest motorhome—our “rest home” if you insist!

Cab chassis

At the time of our purchase, Curiosity had done over 206,000km. The base vehicle has the following specifications:

Item
MakeMercedes-Benz
ModelSprinter C/C 513 CDI 4325 L
Year2015
ColourWhite
Engine95 kw turbo diesel, capacity 2,143 cc
AdBlueNo
Tare (unladen mass)3740kg
GVM (tare + payload)4490kg
Payload750kg
TransmissionAutomatic (6 speed), Tiptronic
Drive trainRear wheel drive (dual rear wheels)
Tyres6x 205/75R16C (60 psi all tyres per RVSC) + underslung spare
Certified seats6 (2 in cab; 4 in habitation)
Air conditioningYes (not including habitation area)
Electric windowsYes
Cruise controlYes (and limiter)
Central lockingYes (not including habitation door)
InfotainmentSony XAV-AX1000 Apple CarPlay Head Unit 6.2″ Double DIN
[replaced Nakamichi NAM1610 7” 2-DIN AV receiver]
Curiosity is built on a Mercedes-Benz Sprinter cab chassis

Habitation

Curiosity’s coach-built habitation area was manufactured by KEA (also an endangered NZ parrot), the model being a River Rest M721 (ex-rental).

The River Rest M721 habitation layout (Credit: RV Super Centre)
External features
Length7.21m
Width2.30m (2.80 including extended wing mirrors)
External height3.25m
Internal height2.15m
Reversing cameraYes
AwningCvana 4m in length
Awning lightYes
Bike rackFiamma Carry-Bike Pro C (2 cycles, 60kg max.)
Roof vents4 (all with insect screens, 2 with blackout blinds)
Windows7, all opening with insect screens except rear, single glazing with privacy tint
Window furnishingsRoman blinds or curtains (including cab separation)
Habitation entrance doorKerbside, double locking, windowed, separable insect screen
Habitation entrance stepManual operation
Kerbside servicesFridge vent, water filler, large garage locker
Offside servicesGas bottle, gas shutoff valves, shore power, toilet cassette, grey water outlet, boiler vent, small garage locker
Sleeping accommodation
Berths6 (fixed rear transverse, dinette, luton)
Rear bed dimensions2.03 x 1.35m
Dinette bed dimensions1.85 x 1.20m
Luton bed dimensions2.10 x 1.60m
Air heaterWebasto Air Top 2000 ST diesel powered, with remote control rheostat (blowing to rear & in-shower)
The rear bed is a double with a domestic mattress
The king-sized luton bed is accessed by ladder
Liquids
Fresh tank capacity82L (external, underslung)
Grey tank capacity82L (external, underslung)
Tank monitorFresh level only
LPG cylinder9kg gas bottle x1
Water heaterSuburban SW6D gas powered (12,000 BTU/h, 22.6L capacity)
Water pumpFlojet Standard R3526144D RV Water Pump 11L/min
[replaced Whale Watermaster FW0814(B) automatic pressure pump]
The gas-fired water heater lives under the rear bed, next to the water pump
Power
BatteryCentury C12-120XDA 120Ah deep cycle AGM (maintenance free)
Battery managementProjecta Intelli Charge Automatic 12V 25A 7-Stage charger (IC2500)
Voltage-sensing relayBEP Marine Digital Voltage Sensitive Relay 12/24V (charging via alternator)
Solar panel150W (estimated)
Solar charge controllerEPSolar LandStar PWM (20Ah capacity)
LightingLED (rear & bathroom lights on separate circuit)
12V sockets1 (in dinette)
240V sockets5 (2 in kitchen, 2 in dinette, 1 in garage)
RCD/ fuse boxBeneath forward-facing dinette seat
Battery isolator switchIn dinette
Control panel switches & voltmeterAdjacent to habitation door
One of the dinette seats houses the battery, power management and diesel heater
Entertainment
RadioMajestic DVD5800 AM/FM Stereo, with DVD, CD, USB & SD Card
TelevisionMajestic L195DA 19” 12V LED TV HD, DVD, USB, MMMI, Low Power Current Draw (2x USB; 2x HDMI), with external DVB-T antenna
Kitchen and dining
BenchLength 231cm; max. depth 66cm; height 97cm
SinkDometic Smev VA 936 stainless steel, square bowl with integrated drainer (W590 x D370 x H125mm, bowl 320 x 320mm)
Water filterPentair Everpure 2CB5-K filter cartridge (replaced with 2CB-GW)
CookerDometic Smev CU402 stainless 4-burner cooktop and grill, with range hood venting to outside
MicrowaveCamec 20L 700W model 044431 (230V operation only)
FridgeIsotherm Cruise Elegance CR 130 EL 12V compressor, 130L capacity (124L fridge, 6L freezer box)
WastePull-out bin draw (2 fitted bins)
DinetteCafé style, behind driver’s seat, with face-to-face seating for 4-6
TableLength 115cm; width 74.5cm
The kitchen has an amazing amount of prep space compared to European designs
A face-to-face dinette seats four comfortably, six at a squeeze (it’s also a third bed)
Bathroom
ToiletThetford C402-C bench toilet, with 19.3L holding tank (model 3232606) and 15L flush tank
WashbasinYes (folding)
ShowerYes (wet bath)
Fitted cabinetYes (mirrored doors)
A toilet and shower occupy a wet bath, ideal for drying sodden walking gear!
Storage
Overhead cupboards5 (4 with middle shelf, 1 with bottle rack)
Drawers3 (2 large, 1 small)
Pull-out pantry1
Hinged cupboard1
Hanging wardrobeYes, with 2 shelves)
Under-bed storageYes (rear, separate from garage)
Under-seat storageYes (dinette)
GarageYes (width of vehicle, external hatches both sides)
Other internal features
SafeYes
Dressing mirrorYes
Smoke alarmGoldair GS-536 (photoelectric)

Video tour and user guide

One of the RV Super Centre staff made the following videos, posted to YouTube. The first provides an overview of the River Rest—very similar to Curiosity:

River Rest 6 Berth NZ Made Motorhome – Review (Credit: Auto Buddy)

The second is a helpful user guide to the main features and functions of the model:

River Rest User Guide – 6 Berth Motorhome (Credit: Auto Buddy)

Pros and cons

You can’t have one without the other! We’re going to live with Curiosity for a bit longer before thinking about these some more—perhaps in a follow-up log?

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