Radiator repairs, coolant flushes, thermostat replacements, and water pump services to prevent overheating.

An overheating engine can cause catastrophic damage in minutes — warped heads, blown gaskets, and seized pistons. My Vehicle Maintenance in Masterton provides full cooling system diagnostics and repairs, from simple coolant flushes and thermostat replacements to radiator rebuilds and water pump services. Wairarapa summers put extra strain on cooling systems, especially on vehicles towing or driving hill roads. If your temperature gauge is creeping up, you're losing coolant, or your heater has stopped blowing warm air, get your cooling system checked before it becomes an expensive engine repair.
Tell us the symptoms — overheating, coolant loss, sweet smell, steam, or no cabin heat.
We pressure-test the cooling system to locate leaks and check thermostat and water pump operation.
You receive a diagnosis and upfront quote — we prioritise the root cause, not just topping up coolant.
Repairs are completed, the system is pressure-tested again, and we monitor temperature during a road test.
Cooling problems left unchecked become engine problems. We find the cause and fix it properly.

Overheating is one of the fastest ways to destroy an engine, and cooling repairs are far cheaper than a rebuild

We find the actual leak or failure point rather than just topping up coolant and hoping for the best

We use the right coolant type for your engine, which matters for alloy components and gasket longevity

Wairarapa summers are hot, and towing on hill roads pushes cooling systems hard. We make sure yours can cope
Common causes include a stuck thermostat, failed water pump, coolant leak from a hose or radiator, blocked radiator core, or a blown head gasket. We pressure-test the system to pinpoint the exact cause.
Most manufacturers recommend a coolant flush every 40,000 to 60,000 kilometres or every two to three years. Over time, coolant loses its anti-corrosion properties and can damage alloy components in your engine.
If you're regularly losing coolant, topping up is only a temporary fix. There's a leak somewhere that needs finding and repairing. Driving with low coolant risks overheating and serious engine damage.
Often yes. A faulty thermostat, low coolant level, or a blocked heater core can all prevent warm air from reaching the cabin. It's worth getting checked because the same issue that causes no heat can also cause overheating.