





Spark Plug Replacement made easy
Enter your cars details to request an estimate for your repair. 🔧
Or choose from hundreds of common repairs here.






Spark Plug Replacement made easy
Enter your cars details to request an estimate for your repair 🔧
Why book with us?

Loved by thousands
All our work comes with a 12 month, 10,000km parts and workmanship guarantee.

Upfront, fixed pricing
No "from..." pricing here. We honor our prices, and our quotes don't change unless the job does.

Peace of mind maintenance
We make it easy so you can get on with your day. Car maintenance at home, work or at the golf club.
Tell me about my Spark Plug Replacement
Spark plugs are small but vital components that ignite the air-fuel mixture in your engine’s cylinders. Over time, they wear out, become fouled, or lose efficiency, leading to misfires, poor fuel economy, and sluggish performance. Regular spark plug replacement ensures reliable engine starting, smooth running, and maximum efficiency.
What is a spark plug replacement?
This service involves removing the old or worn spark plugs and installing new ones with the correct specification for your vehicle. The mechanic will also inspect ignition components such as coils and leads, and check for any signs of engine issues related to combustion.
Why do you need a spark plug replacement?
Faulty or worn spark plugs produce weak or inconsistent sparks, causing poor engine performance. Replacing them restores efficient combustion, improves fuel economy, reduces emissions, and helps protect the catalytic converter from damage caused by misfires.
Common signs you need a spark plug replacement
- Difficulty starting the engine
- Engine misfires or rough idling
- Poor acceleration or reduced power
- Increased fuel consumption
- Check Engine Light illuminated
- Excessive exhaust emissions
What happens during a spark plug replacement?
A mechanic will:
- Inspect the ignition system and spark plugs
- Remove the old spark plugs
- Check cylinder condition for signs of oil or carbon build-up
- Install new, manufacturer-specified spark plugs
- Torque plugs to correct settings
- Test run the engine to confirm smooth performance
How much does a spark plug replacement cost?
Replacement typically costs $120–$300, depending on the vehicle, number of cylinders, and plug type (standard, platinum, or iridium). Some modern engines with difficult access may cost more.
Is it unsafe to drive with bad spark plugs?
Yes. Worn spark plugs can cause misfires, reduced power, poor fuel economy, and damage to the catalytic converter. Driving with faulty plugs may also leave you stranded if the engine fails to start. They should be replaced promptly according to the manufacturer’s schedule.
Need help finding the right service or repair?
Our experts can help. Call or email at hello@turnersservice.co.nz.
Frequently Asked Questions 🧐
How do online bookings work for car servicing & basic repairs?
Once you fill out your details, you’ll be shown the ‘search results’ which displays instant fixed-price quotes from local service providers that can be booked online.
Can I get quotes for more complex repairs and inspections?
Yes. Once you have entered in your vehicle details and location, you’ll be able to browse through available repair tasks or inspections that you would like a quote for.
Will the price I'm quoted via Turnersservice.co.nz be the final price I'll pay?
Yes. For the work included in the quote, the price you’re quoted is the final price you’ll pay.
How long will my service or repair take?
If you’ve booked with a workshop, the service provider will usually require your vehicle for the entire day due to scheduling. If you’ve booked with a mobile provider, you will only be without your vehicle for the time it takes to complete the job.
What are my payment options?
Booking your car service or repair through Turners Service & Repairs gives you access to these convenient payment options:
1. Pay upfront and online using your credit or debit card or PayPal
2. Flexible payment options with Afterpay
3. In some instances, you can choose to pay the mechanic when the service or repairs have been completed.
Will I get an invoice at the end of my service or repair?
Yes, we send through a comprehensive report and invoice / receipt once the booking is completed. If you have any questions please reach out via 0800 768 000.