MajorCommonElectrical

Mazda RX-8: Ignition Coilpack Failure (Mazda Recall Issued)

Ignition Coilpack Failure (Mazda Recall Issued) is a common electrical fault on the Mazda RX-8 on the 2003–2008 cars, and we rate it major. Putting it right costs ≈A$410 to ≈A$1,200 at independent workshop rates, shown as an approximate guide in Australian dollars. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 15 documented faults on the Mazda RX-8.

Vehicle: Mazda RX-8
Years: 2003–2008
Fuel: petrol
System: Electrical

This page covers the Mazda RX-8 as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Mazda RX-8 faults15 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Catalytic converter yet. We would rather show none than show a picture of a different part.

What goes wrong

Series 1 RX-8 ignition coilpacks (primary and secondary coils) were subject to a Mazda recall due to premature failure of the coil insulation, leading to misfires, no-start conditions, and hard starting. The Renesis uses four coils feeding leading and trailing plugs on each rotor. Coil failure causes severe misfiring and can contribute to catalyst damage. The recall covered replacement with revised coilpacks, but many affected cars in the used market may have non-updated parts.

What you would notice

Severe misfiring under acceleration or at idle
Check engine light with misfire codes (P0301-P0304 equivalents for rotary)
Hard starting or failure to start
Engine stuttering or cutting out at low rpm

How to check it

Where to look. Top of engine, four ignition coilpacks

Ask if the coilpacks have been replaced and confirm recall was completed.
Inspect coilpack connectors for heat damage or corrosion.
Run the engine to warm temperature and check for misfiring at idle or light throttle.
If a workshop inspection is possible: Scan for misfire or coil-related OBD fault codes.

Parts involved: Catalytic converter.

What it costs to put right

≈A$410 to ≈A$1,200 at independent workshop rates, shown as an approximate guide in Australian dollars. That is for this job on its own, not for the car.

An estimate, converted to Australian dollars, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Has the Mazda coilpack recall been completed on this car?”
“Have the ignition coilpacks ever been replaced?”
“Has the car ever misfired badly or thrown ignition-related fault codes?”

Now check the Mazda RX-8 you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car still has money owing on it, has been written off or reported stolen, what kms it showed in past sale ads, whether it has had accident repair claims and what it is worth today. That comes from the official records for that plate. Enter the plate and its state for the A$17.90 Vehicle Check, or the full history from A$24.99.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Mazda RX-8 buyer questions

Is ignition coilpack failure (mazda recall issued) serious on a Mazda RX-8?

We rate it major and common on the Mazda RX-8. Series 1 RX-8 ignition coilpacks (primary and secondary coils) were subject to a Mazda recall due to premature failure of the coil insulation, leading to misfires, no-start conditions, and hard starting. The Renesis uses four coils feeding leading and trailing plugs on each rotor. Coil failure causes severe misfiring and can contribute to catalyst damage. The recall covered replacement with revised coilpacks, but many affected cars in the used market may have non-updated parts.

How much does it cost to fix on a Mazda RX-8?

≈A$410 to ≈A$1,200 at independent workshop rates, shown as an approximate guide in Australian dollars. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Mazda RX-8 years are affected?

Our research records this fault on the 2003–2008 Mazda RX-8. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Ask if the coilpacks have been replaced and confirm recall was completed. Inspect coilpack connectors for heat damage or corrosion. Run the engine to warm temperature and check for misfiring at idle or light throttle. If a workshop inspection is possible: Scan for misfire or coil-related OBD fault codes. Look here: Top of engine, four ignition coilpacks