Starter Motor & Alternator Replacement Services

About the starter motor and alternator

The starter motor and alternator are two important parts in a car’s electrical system that work together to provide power to the engine and other electrical components. Here’s a brief overview of what each component does:

Starter motor: The starter motor is responsible for starting the engine when you turn the key in the ignition. It uses electrical power from the car’s battery to turn the flywheel, which rotates the engine and gets it started. Once the engine is running, the starter motor disengages and stops drawing power from the battery.

Alternator: The alternator is responsible for charging the car’s battery and providing power to the electrical system when the engine is running. It converts mechanical energy from the engine into electrical energy and uses it to charge the battery and power other electrical components, such as the lights, radio, and air conditioning system. The alternator also regulates the voltage of the electrical system to ensure that all components receive the correct amount of power.

How to Tell if your Starter Motor or Alternator is Damaged

If you’re experiencing trouble starting your car, it may be time to consider a starter motor and alternator replacement. These components are critical to the proper functioning of your car’s electrical system and are responsible for providing power to the engine and other electrical components.

Here are some signs that you may need a starter motor or alternator replacement:

  • Slow / hesitant engine start: If your engine is slow to start or sounds weak when you turn the key, it may be a sign that the starter motor is failing.
  • Dimming headlights or dashboard lights: If your headlights or dashboard lights are dimming or flickering, it may be a sign that the alternator is not providing enough power to the electrical system.
  • Battery warning light: If the battery warning light on your dashboard comes on, it may indicate that the alternator is not properly charging the battery.
  • Grinding or clicking noise when you turn the keys: If you hear a grinding or clicking noise when you try to start your car, it may be a sign that the starter motor is failing.

Diagnosing and Fixing your Vehicle’s Alternator/Starter Motor

At Grimmer Motors, we understand that car problems can be stressful and inconvenient, which is why we offer fast, reliable service to get you back on the road as quickly as possible. We’ll work with you to find a solution that fits your needs and budget, and we’ll never recommend services that you don’t need.

Our experienced, trusted and fully qualified mechanics can quickly diagnose and fix electrical faults related to your starter motor or alternator. This means that when you get your vehicle serviced at Grimmer Motors, you can expect high-quality service and reliable, long lasting results.

To ensure fast and accurate diagnostics of alternator and starter motor faults, we use state of the art scanning technology. Our scanners also record all your cars test results into our database. This means that there is always a record of your test results that can be reprinted for you at any time, to compare your car against.

Contact our Hamilton office today for reliable, honest starter motor and alternator diagnostics/replacement solutions.

Conveniently located in Fairfield, Grimmer Motors have been providing reliable, quality service to Hamilton since the company was established in 1934. When you have your alternator or starter motor replaced through Grimmer Motors, you can trust our fully qualified mechanics to safely and efficiently service your vehicle, advising you before further work is conducted.

Live/work in any of the following areas? Grimmer Motors could be extra convenient for you.Fairfield

  • Fairview Downs
  • Enderly
  • Claudelands
  • Peachgrove
  • Hamilton East
  • Chartwell
  • Chedworth
  • Central Hamilton
  • Forest Lake, Beerescourt
  • Frankton
  • Melville
  • Waikato



Grimmer Motors Ltd


Paul Johns

Booked the ol' Fuga in for a service this week. I dropped it off early to take advantage of the free clean and asked if I could have it ready at 3 pm. The service went well and they... pointed out things that would need attention in the future. I like the introduction of the vehicle service and repair log book. Which has all my previous services and fix ups recorded in it. And the Fuga was freshly cleaned and ready at 3pm, like they said. Thanks Team

Cinn Thornton

The team at Grimmer Motors are very friendly and have awesome customer service. My car needed scan as flashing light on dash. The problem was identified , easy to ... understand explanation given and quote for fix provided. Thanks team.

Pip Six

Awesome service. They communicated really well with me about what was going on and then fixed a few extras on the same day I took my van in. A great place.

Lincoln Fernandes

Fast easy reliable and much cheaper compared to dealerships

Hamish O'neill

Great customer service, good communication and works done on time. Thanks Grimmers

Sarah Bowers

Love leaving our car(s) in the friendly and capable hands at Grimmer Motors. Everything from drop off, reception, communication and the work done is of a high standard... and much apprecaited. Another happy customer - thanks Grimmers.