Dacia Logan MCV Spark Plugs: Intervals, Fitment & Warning Signs

On the Logan MCV, a genuine fitment trap: NGK replacement coils are rated 14V versus the original 12V units.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: we weren't able to verify a confident Dacia Logan MCV spark plugs part number at the time of writing. Please confirm the correct part via a Dacia dealer or parts specialist using your VIN.

A Genuine Fitment Trap Worth Knowing Before Ordering Replacement Coils — Dacia Logan MCV Spark Plugs

If you're replacing ignition coils and considering NGK as an alternative to the original fitment, this is genuinely worth knowing: one documented case found NGK replacement coils specified as 14V, while the original factory-fitted Hitachi units were rated at 12V — a genuine voltage mismatch that may explain compatibility issues some owners have experienced when mixing brands.

A genuine, specific fix worth knowing if you find water inside the spark plug wells: disconnect the coil connector, remove the retaining bolt carefully, and allow the well and coil around 15 minutes to dry out completely. While waiting, remove, clean, and check the gap on the spark plugs themselves, then clean the coil's connector contacts with proper electrical contact cleaner before refitting everything.

It's also worth knowing why 3-cylinder engines often have a shorter plug replacement interval than you might expect on a low-mileage car: with fewer cylinders sharing the workload, each spark plug fires more frequently per crankshaft revolution, accelerating wear even at modest annual mileage.

A Cheap Part That Causes Expensive-Feeling Problems

Worn spark plugs rarely announce themselves clearly — a slightly rougher idle, a bit less punch off the line — symptoms easy to blame on almost anything else in the engine bay. The part itself costs very little, which makes it an easy one to overlook for far longer than it should be.

Dacia Logan MCV Spark Plugs reference plate

Before you buy: plug type and gap specification vary by engine size and generation. Always confirm against your VIN before ordering.

What They Do

Spark plugs ignite the compressed fuel-air mixture inside each cylinder, and their condition directly affects combustion efficiency, fuel economy and smooth running. Petrol engines rely entirely on them; diesel engines don't use spark plugs at all, relying on compression instead.

Generations, Engines & Spark Plug Count

Diesel variants (dCi)	Not applicable — diesel engines use compression ignition and have no spark plugs at all
0.9/1.0 TCe/SCe (standard petrol trims)	Genuinely only 3 spark plugs — this small turbocharged engine (co-developed with Nissan) is shared across Renault, Dacia and even some Smart models, not a four-cylinder
1.3 TCe (higher trims, RS Line and similar)	Genuinely 4 spark plugs — this larger engine (co-developed with Mercedes-Benz) is a completely different unit from the smaller 3-cylinder TCe, despite both sharing the "TCe" badge; confirm your exact engine before ordering

Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Spark Plugs Guide for symptoms of worn plugs, why matching your exact plug specification matters, and trusted brands to buy from.

More Dacia Spark Plugs

The same part, covered across other Dacia models.

Dacia Logan MCV Spark Plugs: Intervals, Fitment & Warning Signs

OEM Part Numbers

A Genuine Fitment Trap Worth Knowing Before Ordering Replacement Coils — Dacia Logan MCV Spark Plugs

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