Dacia Logan MCV Battery: Specs, Fitment & Common Faults

On the Logan MCV, a "low" resting voltage reading isn't automatically a fault thanks to the smart alternator — plus a real warranty saga worth knowing.

Illustration for editorial purposes

OEM Part Numbers

Genuinely useful clarification, sourced from the UK Dacia Forum: Type 027 has been the recommended fitment across UK Dacias from 2013 onwards for standard petrol and diesel variants — Type 012 is specifically only for LPG/Flex-Fuel variants, not a smaller "budget" option for everyone else, which is a common point of confusion.

1.0 TCe petrol, confirmed genuine fitment	Type 027P, 64Ah, 640 CCA
1.5 dCi diesel, Start/Stop, front discs — AGM fitment	Type L3 (096), AGM, 70Ah, 760A (EN)
LPG/Flex-Fuel variants only	Type 012 — do not assume this applies to standard petrol/diesel cars

A Genuinely Useful Technical Explanation Worth Knowing Before Worrying — Dacia Logan MCV Battery

If you've measured your battery voltage and found it reading around 12.5V while the engine is running, this isn't automatically a fault: the smart, regenerative alternator on later models only provides a full charge when the battery monitoring system genuinely detects it's needed, rather than constantly charging regardless of state. Switching on a load like the headlights and seeing the voltage jump up to around 14.4V confirms the alternator is working correctly and simply wasn't providing unnecessary charge a moment before.

A genuinely real, worth-knowing account of warranty repair timelines: one documented warranty battery replacement took a full week to complete, with the specific replacement part reportedly having to be ordered all the way from Athens before the garage could complete the swap. If you're facing a warranty battery replacement and it's taking longer than expected, this kind of parts-sourcing delay is a genuine, documented possibility.

It's also worth knowing that a documented keyless entry system recall has been suspected by some owners as a contributing cause of subsequent battery drain — if your car has had this recall work completed and you're now experiencing a new drain issue, it's worth mentioning this timing directly to whoever is investigating.

The Part Everyone Blames First, Not Always Correctly

A car that won't start gets blamed on the battery more often than any other component, and it's right often enough to make that assumption a reasonable first check. But it's not always the actual cause, which is worth knowing before spending money on a replacement that doesn't fix anything.

Before you buy: battery size, capacity and type (standard vs AGM/EFB for stop-start systems) vary by trim and engine. Always confirm against your VIN before ordering.

What It Does

The 12V battery provides the power needed to start the engine and runs electrical systems when the engine isn't turning. On cars with stop-start technology, the battery works much harder than on older designs, since the engine switches off and restarts far more frequently — which is exactly why these cars need a specific AGM or EFB battery type rather than a standard unit.

Warning Signs, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Battery Guide for warning signs to watch for, confirming fitment against your VIN, and matching the right technology (standard, EFB, AGM) when buying aftermarket.

More Dacia Battery

The same part, covered across other Dacia models.

Dacia Logan MCV Battery: Specs, Fitment & Common Faults

OEM Part Numbers

A Genuinely Useful Technical Explanation Worth Knowing Before Worrying — Dacia Logan MCV Battery

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