We’re the ultimate choice for all your vehicle air-conditioning and heating needs for all types of vehicles.

We offer a wide range of services. If a service you’re after isn’t here, contact us – we may be able to help.

Phone 0508 COOLCAR and select your nearest CoolCar Air-Conditioning Centre.

All centres

Types of vehicles

We have expertise in air-conditioning for all types of vehicles, aircraft and boats.

  • cars, four-wheel-drives, utes, vans

  • motor-homes, caravans, boats

  • trucks, transport refrigeration

  • planes, helicopters
  • trains, buses
  • tractors, farm vehicles, heavy machinery

  • performance cars, classic cars, replica vehicles

  • emergency vehicles including ambulances

If your vehicle is not on this list, contact us anyway as we will most likely be able to help you.

The vehicles we work on include the following:

Alfa Romeo
Aston Martin
Deutz Fahr
John Deere
Land Rover
New Holland
Rolls Royce

Vehicle air-conditioning

CoolCar are specialists in vehicle air-conditioning evaluation, repairs, servicing, sales, installation, pollen filters and deodorisation.


Bring your vehicle in for an examination of your air-conditioning system. We will let you know what work, if any, is needed.

Leak Detection

We use refrigerant leak detectors, sensitive Lok-Trace forming gas leak detection and UV dye to help identify system leaks when we find low refrigerant.  This allows us to find and fix leaks prior to re-gassing.


If you’re having problems with your vehicle air-conditioning, e.g. it’s not working or it’s smelly, we will recommend the repairs needed. We will give you an estimate and update you if the work looks likely to go over that amount.


We recommend you have your air-conditioning checked every couple of years before minor problems turn into big problems and have your cabin filter changed annually.


We are able to work on R12 (Freon), R134a and R1234YF (Opteon YF) systems. Talk to us about your R744 (CCO2) system requirements.

Refrigerant Identification

We use Neutronics Refrigerant Identifiers to check what refrigerant is in your vehicle checking for contamination with non-approved refrigerants, like flammable hydrocarbons and also, air.


We install vehicle air-conditioning systems in all types of vehicles. We’ll give you expert advice on which system is best for your vehicle.

Pollen filters

Pollen filters reduce pollen, dust, smog and other irritants coming into your vehicle. They also help protect your air-conditioning system from being clogged up by pollutants.


This service removes smells from your vehicle due to mould, mildew and other causes including rodents.  We deodorise both you air-conditioning system and any smells within the vehicle itself.  Treatments may include ozone and antibacterial/antifungal treatments like Bacti-gas.

Auto Electrical

We provide auto electrical services, they are often a necessary part of air-conditioning repair.

An excellent understanding of auto electrical systems is needed to be able to diagnose and repair air-conditioning systems.

On modern vehicles, we use advanced auto electrical diagnostic tools.  For some vehicles, even in the absence of an auto electrical fault, our technicians need to be able to communicate with both your car’s engine management system and its air-conditioning system.

With some cars, it is not possible to re-gas the air-conditioning, after diagnosis and repair of any problems, without an auto electrical scan tool.

Our knowledge and experience mean you receive the best expertise with you vehicle’s complex electronic systems.

Repairs involved may include diagnosing faulty relays, fan speed resistors and blower fan faults, a burnt clutch wire to the compressor, other wiring faults, controller faults, cooling fan faults, sensor and thermistor faults to name a few.

Wet carpets

We are able to identify and solve the cause of wet carpets inside your vehicle.  Whether from the blocked evaporator drain or a leaking heater core.

Vehicle heating

CoolCar Air-Conditioning Centres provide a full range of services to ensure your vehicle heating runs at its best. Say hello to comfort and goodbye to foggy windows!

We are specialists in vehicle heating, as well as air-conditioning. Heating services include evaluation, repairs, servicing, sales and installation. When your heater is not working, you’re getting heat when you want cold, or you’re getting cold when you want heat, contact us.

We repair heaters, radiators, heater cores or coils, heater blower motors, heater hoses, all the electronic controls, thermostats and temperature sensors.

Off the grid services and Redarc solar systems

We’re your choice for virtually any kind of solar panel set-up including campervans, caravans, boats and out-of-the-way buildings to operate off the grid.  The Redarc solar panels charge house batteries to run accessories like TVs, lights, fridges and water pumps using power control units supplied by Redarc.

Talk to us about your off the grid requirements today, see CoolCar Hamilton or North Shore

Caravan and Motorhome heating and cooling solutions

CoolCar Air-Conditioning Centre Hamilton and North Shore  can take care of your Dometic, Truma or Air Command roof top, under-bunk or in-cupboard air-conditioning faults or installations as well as Eberspacher diesel heater installation and service.

Hamilton & North Shore

Light truck and van refrigeration

We offer a range of light truck and van refrigeration services.


Our customers include:

  • vendors of milk and baked goods
  • vendors of chilled produce including berries and lettuces

Contact us with any other requirements.


  • Diagnosis and repairs (please note our free evaluation offer does not apply to truck refrigeration)
  • Filter-drier replacement
  • Evaporator and condenser coil cleaning
  • Belt adjustment and replacement
  • Fan replacement and repairs
  • Rebuilt and new compressors
  • Hose repair and replacement
  • Electrical repairs, including 240V over-nighter repairs
  • Refrigerant conversions


  • New refrigeration systems fitted
  • Rear chiller solutions for Toyota Hiace, Ford Transit, LDV, Mercedes Sprinter and Vito.
  • Chilled are must also be insulated which we can perform.

Contact us at CoolCar Air-Conditioning Centre Hamilton or North Shore for any inquiries.

Auto electrical services

Our auto electrical staff have the skills, tools and expertise to help you out with your auto electrical issues – from air-conditioning to heating to batteries, alternators and starters, taillights and engine check lights.  See CoolCar Hamilton or North Shore for help today.

Portable fridge-freezers

In addition to our other services, CoolCar Hamilton and CoolCar North Shore also sell and service portable fridge-freezers.

Check out this great review from happy campers Rosemary and Peter in the NZ Motorhome & Caravan Forum.

We sell Engel and Dometic portable fridge-freezers and we service and repair most makes and models of 12/24/240V and gas (LPG) portable fridge-freezers including Engel, Dometic, Waeco, Electrolux, Nova Cold, Norcold, Mobicool, Vitrifrigo and Indel B.

When we service or repair your fridge-freezer, a pre-paid inspection fee of $115 applies, including for new models where warranty may be pending. This inspection fee will be refunded if your warranty is accepted by the supplier.

You will need to bring your proof of purchase with you to make a claim and the fault needs to meet the supplier’s definition of a manufacturing defect.

Note: wiring faults and power supply problems are not covered under the manufacturer’s warranty.


Hulk 4×4

To match the growing popularity of 4x4s, CoolCar Hamilton and CoolCar North Shore provide the full range of products from leading supplier Hulk 4×4.  Everything you need when you’re out on the beach or stuck in the mud. Examples include all the essential recovery gear including winches, winch rope, recovery tracks, jacks, straps, drag chain, lightbars and dual battery systems.  We can also supply Hulk 4×4 camping accessories such as awnings and lights, as well as the caravan and trailer accessories, including extended mirrors, locks, steps, ratchet straps and tie down points. We offer a full fitting service for all Hulk 4×4 products.

See our Trademe listings

Phone CoolCar Hamilton on 07 849 6906

Phone CoolCar North Shore on 09 443 8025


Specialist Diesel and General Mechanical Services

CoolCar Onehunga incorporates the business, Morrison Diesel a long-standing specialist diesel and general mechanical workshop for cars, 4WD, and trucks.  See them in their spacious workshop at 30 Selwyn Street Onehunga.