MajorCommonEngine

Mazda Mazda2: 1.5D SKYACTIV-D S5-DPTS DPF Clogging

1.5D SKYACTIV-D S5-DPTS DPF Clogging is a common engine fault on the Mazda Mazda2 on the 2014 onward cars, and we rate it major. Putting it right costs $600 to $2,800 at New Zealand independent workshop rates. 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 33 documented faults on the Mazda Mazda2.

Vehicle: Mazda Mazda2
Engine: S5-DPTS
Years: 2014 onward
Fuel: diesel
System: Engine

This page covers the Mazda Mazda2 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 Mazda2 faults33 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Diesel particulate filter yet. We would rather show none than show a picture of a different part.

What goes wrong

The 1.5-litre S5-DPTS SKYACTIV-D diesel engine relies on passive and active DPF regeneration cycles requiring sustained highway driving at temperatures above 550 degrees Celsius to burn off accumulated soot. Vehicles used predominantly for urban trips under 15 km repeatedly interrupt regeneration cycles, causing rapid soot loading. A blocked DPF triggers limp mode and requires forced regeneration or replacement. Unburned diesel injected during failed regeneration attempts dilutes sump oil, damaging bearing surfaces.

What you would notice

DPF warning light illuminated on dashboard
Reduced power or limp mode activation
Engine oil level rising above maximum mark
Increased exhaust smoke during regeneration attempts
Fuel economy deterioration

How to check it

Where to look. Exhaust system, DPF canister mounted under vehicle mid-section

Inspect engine oil level for rise above maximum which indicates diesel dilution.
Ask owner about typical driving patterns as predominantly urban use is the primary risk factor.
If a workshop inspection is possible: Check DPF soot load percentage with a Mazda-compatible diagnostic tool if available.

Parts involved: Diesel particulate filter.

What it costs to put right

$600 to $2,800 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, 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

“Is the vehicle used mainly for short urban trips or regular highway runs?”
“Has a DPF warning light ever appeared on the dashboard?”
“Has the DPF been professionally cleaned or replaced?”

Now check the Mazda Mazda2 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 has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

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 Mazda2 buyer questions

Is 1.5d skyactiv-d s5-dpts dpf clogging serious on a Mazda Mazda2?

We rate it major and common on the Mazda Mazda2. The 1.5-litre S5-DPTS SKYACTIV-D diesel engine relies on passive and active DPF regeneration cycles requiring sustained highway driving at temperatures above 550 degrees Celsius to burn off accumulated soot. Vehicles used predominantly for urban trips under 15 km repeatedly interrupt regeneration cycles, causing rapid soot loading. A blocked DPF triggers limp mode and requires forced regeneration or replacement. Unburned diesel injected during failed regeneration attempts dilutes sump oil, damaging bearing surfaces.

How much does it cost to fix on a Mazda Mazda2?

$600 to $2,800 at New Zealand independent workshop rates. 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 Mazda2 years are affected?

Our research records this fault on the 2014 onward Mazda Mazda2. 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?

Inspect engine oil level for rise above maximum which indicates diesel dilution. Ask owner about typical driving patterns as predominantly urban use is the primary risk factor. If a workshop inspection is possible: Check DPF soot load percentage with a Mazda-compatible diagnostic tool if available. Look here: Exhaust system, DPF canister mounted under vehicle mid-section