Autova Mobile Mechanic
From $120 · NGK & Bosch Plugs · $0 Call-Out

Mobile Spark Plug
Replacement Perth

Rough idle, misfires, or poor fuel economy? Worn spark plugs are often the cause — and we fix them on your driveway.

Spark plugs ignite the fuel-air mixture in your engine thousands of times per minute. When they wear out, your engine runs rough, uses more fuel, and can trigger a check engine light. Autova replaces all plugs to the correct spec using NGK or Bosch — the brands your manufacturer trusts.

Book Spark Plug Replacement View full pricing

Signs Your Spark Plugs
Need Replacing

If you notice any of these symptoms, it's time to book a spark plug inspection.

Rough idle or engine misfires
The engine shakes or stutters at idle — a classic sign of worn or fouled spark plugs.
Poor fuel economy
Worn plugs cause incomplete combustion, forcing the engine to use more fuel to produce the same power.
Slow or hard starting
Degraded plugs struggle to ignite the fuel-air mixture, especially in cold weather.
Loss of acceleration
The engine hesitates or feels sluggish when you press the accelerator.
Check engine light on
A misfire fault code (P0300–P0308) is one of the most common causes of a check engine light.
Exceeded service interval
Even if no symptoms are present, plugs should be replaced at the manufacturer-specified interval.

Spark Plug Types & Pricing

We always use the plug type specified by your vehicle manufacturer.

Standard Copper Plugs
From $120
Replace every 30,000 km

OEM-spec copper plugs for older vehicles. Reliable performance at the most affordable price point.

Platinum Plugs
From $160
Replace every 60,000 km

Extended service life with better ignitability. Suitable for most modern passenger vehicles.

Iridium Plugs
From $200
Replace every 100,000 km

Maximum performance and longevity. Required by many late-model vehicles. Improved fuel economy and cold-start performance.

Double Iridium / OEM Spec
POA
Varies by manufacturer

For vehicles requiring specific OEM plugs (e.g. certain Toyota, Honda, and European models). Priced on application.

Prices include labour and parts for a standard 4-cylinder engine. 6 and 8-cylinder vehicles vary. All prices confirmed before work begins.

What's Included

All spark plugs replaced (full set)
Plug gap checked & set to manufacturer spec
Ignition coil visual inspection
Engine idle quality check post-fit
NGK or Bosch plugs as standard
Iridium upgrade available on request
Fault code scan if check engine light is on
Digital health report sent to your phone
OEM-Spec Plugs Only
We use NGK and Bosch plugs — the same brands specified by Toyota, Mazda, Ford, Hyundai, and most other manufacturers.
12-Month Warranty
All parts and labour backed by our 12-month / 20,000 km warranty.
Fixes Misfires Fast
Most spark plug jobs are completed in 45–90 minutes. Your engine will feel the difference immediately.

Spark Plug FAQ

How often should spark plugs be replaced?
What brand of spark plugs do you use?
Can you replace spark plugs at my home?
Will new spark plugs improve my fuel economy?
Can you replace spark plugs on a V6 or V8 engine?
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