Radiator Repairs & Radiator Replacement
If your engine temperature is climbing or you’ve noticed coolant leaks, it’s important to have your cooling system inspected as soon as possible.
At Ultimate Automotive Hamilton, we provide fast, accurate radiator repairs, radiator replacement and full cooling system servicing for all makes and models of vehicles.
Signs Your Radiator Needs Repair or Replacement
Your radiator plays a critical role in keeping your engine cool. If it’s not working properly, your engine can overheat – causing expensive internal damage. Common signs you may need radiator repairs include:
- Engine temperature running hotter than normal
- Coolant leaks under the car (green, red or pink fluid)
- Sweet smell from the engine bay
- Low coolant level
- White steam from under the bonnet
- Rust or corrosion around the radiator
- Heater not blowing warm air
- Frequent need to top up coolant
- Coolant mixed with oil (serious internal issue)
If any of these symptoms occur, book a car radiator service before the problem becomes more severe.
Qualified Cooling System Technicians You Can Trust
Your radiator and cooling system need to be handled by experienced technicians. Our team includes:
- An A-Grade Automotive Engineer
- Cooling system repair specialists
- Technicians trained across Japanese & European cooling systems
- Experts in radiators, thermostats, heaters, water pumps & hoses
We diagnose and repair cooling issues on all makes and models, from daily commuters to high-performance European vehicles.
Radiator Repairs vs Radiator Replacement
Not every radiator problem requires a full replacement. During a car radiator service, we assess:
Radiator Service
- Radiator leaks
- Blocked or restricted cores
- Cracked tanks
- Failing caps
- Corroded fins
- Hose condition
- Thermostat operation
- Water pump performance
Radiator Repairs
(where possible)
Repairs may include:
- Fixing minor leaks
- Replacing radiator hoses
- Replacing caps or clamps
- Cleaning blocked cores
- Repairing fittings or mounts
Radiator
Replacement
Recommended when the radiator is:
- Severely corroded
- Cracked or leaking heavily
- Blocked internally
- Damaged from overheating
- Past the point of safe repair
You’ll always receive honest advice – we only replace when it’s genuinely necessary.
Car Radiator Service - What We Check
Our comprehensive automotive radiator service includes:
Cooling System Pressure Test
Radiator Core Flow, Fan & Sensor Testing
Coolant Flush & Replacement
Thermostat & Housing Inspection
Water Pump Operation Check
Hose, Clamp & Cap Checks
This complete system approach ensures you don’t just fix the symptom — you fix the cause.
Why Choose Ultimate Automotive for Radiator Repairs?
Cooling System Experts
Our technicians diagnose overheating issues quickly and accurately.
Full Radiator Repair & Replacement Capability
We handle leaks, corrosions, blockages, thermostat failures and complete radiator replacement.
High-quality Parts
We fit quality radiators and coolant to maximise long-term reliability.
Fair, Transparent Pricing
One-stop Workshop
No Surprises Guarantee
We never start repairs without your approval.
Convenient service options
Courtesy cars available, Free pick-up & delivery in Te Rapa, Mobile EFTPOS, Afterpay & ZIP accepted
Our Radiator Repair & Replacement Process
1. Cooling system inspection
We assess leaks, blockages, temperature behaviour and coolant condition.
2. Pressure testing
Confirms whether the radiator or another component is failing.
3. Diagnosis & clear explanation
We identify the root cause and explain your options.
4. Radiator repairs or full replacement
We complete the required work using high-quality parts.
5. Coolant flush & refill
Essential for protecting your cooling system.
6. Final temperature & pressure check
Ensures your engine runs at the correct temperature.
Radiator Repairs & Cooling Systems
FAQs
Here you’ll find quick, clear answers to help you understand common issues, warning signs, costs, and what to expect when servicing your vehicle’s cooling system.
Corrosion, age, coolant contamination, physical damage, overheating or failing hoses and clamps.
Costs depend on the vehicle, radiator type, parts needed and labour time. We provide a clear quote after inspection.
Not recommended – you risk overheating and major engine damage.
Yes – we repair all cooling system components.
Every 2–5 years depending on coolant type and manufacturer guidelines.
Yes – including BMW, Audi, Volkswagen, Volvo, Mini Cooper and Range Rover.
Book Your Radiator Repairs in Hamilton
If your car is overheating, leaking coolant or running hot, don’t wait — cooling system issues can cause serious engine damage. Ultimate Automotive Hamilton provides expert radiator repairs, radiator replacement, and full car radiator service, with clear pricing and trusted workmanship.
1. Convenient Te Rapa location
2. Courtesy cars available
3. Free pick-up & delivery (by arrangement)
Contact us today to book your radiator inspection or request a quote.