Mitsubishi Outlander PHEV Common Faults in Ireland
First generation (GG/GF), 2014–2021 (PHEV) — plug-in hybrid family SUV. Updated 2026-07-06.
Ireland's most common used PHEV, the first-generation Mitsubishi Outlander PHEV (2014–2021) is mechanically robust but ages around its battery: traction-battery capacity fades, rear brakes seize from regen underuse, and a weak 12V battery triggers "PHEV System Fault" warnings. Best-buy years: 2019–2021 (2.4-litre, larger 13.8kWh battery). Worst: 2014–2015.
Quick-stats values are indicative editorial estimates aggregated from owner-forum sentiment, recall portals, and reliability surveys. For Autoza-derived median asking prices per cohort with sample size and confidence tier, see the open dataset at huggingface.co/datasets/Autoza/irish-used-car-price-index.
Which Mitsubishi Outlander PHEV years should you avoid?
Avoid 2014, 2015 Mitsubishi Outlander PHEV models if you can. The 2014–2015 launch cars use the smaller original 12 kWh pack, which after a decade of Irish charging cycles has often lost a large share of its usable EV range — many now show only 15–25 km against an original ~52 km NEDC figure. These early build years are also the ones caught by the high-temperature door-latch recall and the 2014–2016 parking-brake corrosion recall, and had the least-refined early software.
Best and worst years to buy
The 2019 facelift brought a larger 2.4-litre petrol engine, a bigger 13.8 kWh drive battery (up from 12 kWh), stronger regen and smoother EV-to-petrol transitions. By 2019 both the door-latch and parking-brake recalls were long closed on the production line, and these newer packs have simply aged less — so a 2019–2021 car holds far more real EV range today than an early one.
The 2014–2015 launch cars use the smaller original 12 kWh pack, which after a decade of Irish charging cycles has often lost a large share of its usable EV range — many now show only 15–25 km against an original ~52 km NEDC figure. These early build years are also the ones caught by the high-temperature door-latch recall and the 2014–2016 parking-brake corrosion recall, and had the least-refined early software.
Known faults — Mitsubishi Outlander PHEV First generation (GG/GF), 2014–2021 (PHEV)
Documented from HonestJohn, owner forum sentiment (boards.ie, Reddit), Irish RSA recall portal, and Autoza dealer-feedback aggregation. Severity is colour-coded.
Drive (traction) battery capacity degradation
Major — significant repair cost- Symptoms
- Displayed EV range falling well below the original 40–52 km; fewer EV-only kilometres; petrol engine cutting in much sooner; range plummeting in cold weather
- Years affected
- All years; most pronounced on 2014–2016 (12 kWh pack) — Accelerated by age and frequent CHAdeMO rapid-charging; clearly noticeable past 8+ years or 100,000+ km
- Indicative repair (Ireland)
- Individual cell/module replacement €600–€1,500 at an EV specialist; full pack rebuild or replacement €4,000–€8,000+ (rarely economic on an older car)
- What to check before buying
- Charge the car to 100% before the viewing and read the displayed EV range: a healthy first-gen shows roughly 35–45 km, a tired 2014–2015 car often only 15–25 km. Ask for a battery State-of-Health readout (dealer MUT-III, or a Canion/EvBatMon OBD app). Treat "it's just the car learning your driving" as a warning sign, not reassurance — this is the single biggest value factor on a used Outlander PHEV.
Rear brake caliper & parking-brake corrosion / seizing
Moderate — service-level fix- Symptoms
- Handbrake weak or failing to hold on a hill; grinding or binding from a rear wheel; uneven rear pad wear; NCT handbrake-imbalance failure
- Years affected
- 2014–2016 subject to a parking-brake recall; regen underuse affects all years — Worse on low-mileage cars and in coastal or salted-road counties
- Indicative repair (Ireland)
- €150–€300 to strip, clean and re-lube calipers per axle; €250–€450 per side if a seized caliper must be replaced
- What to check before buying
- Because regen braking means the friction brakes are barely used, rear discs and calipers corrode and seize — a classic PHEV NCT failure on Irish roads. On the test drive apply the handbrake on an incline and listen for binding at low speed. Check the RSA recall portal (rsa.ie/recalls) by reg for completion of the 2014–2016 parking-brake caliper recall.
12V auxiliary battery failure ("PHEV System Fault — Power Reduced")
Moderate — service-level fix- Symptoms
- A cluster of warning lights on start-up; "PHEV System Fault, Power Reduced, Service Required" message; car dead or refusing to power up after standing; won't start a charge
- Years affected
- All years — Common on the original 12V battery past 4–5 years, especially cars left unplugged for weeks
- Indicative repair (Ireland)
- €150–€280 for a correct-spec 12V battery supplied and fitted; €60–€100 diagnosis if the charging system is suspected
- What to check before buying
- The 12V starter/auxiliary battery is separate from the big drive battery, and when it weakens it throws the alarming "PHEV System Fault" message even when nothing major is wrong. Ask when the 12V was last replaced. If the dash lit up with multiple warnings at start-up, suspect a tired 12V first before assuming an expensive hybrid-system fault.
Charging faults — port, flap and occasional charge failures
Moderate — service-level fix- Symptoms
- Charge flap won't close (bent flap or lost clips); intermittent failure to start or complete a charge; unusually slow home charging; error partway through the charge cycle
- Years affected
- All years
- Indicative repair (Ireland)
- Charge-flap or clip repair €40–€120; charge-port or on-board-charger faults €300–€900 depending on the part
- What to check before buying
- Bring a granny cable and actually plug the car in at the viewing — confirm it starts and holds a charge, and that the Type 1 AC and CHAdeMO ports both work if you plan to rapid-charge. Check the charge flap closes flush: bent flaps and missing clips are common and let water into the socket, which sits high and exposed to Irish weather.
Front brake disc corrosion / premature pad wear
Minor — wear-and-tear- Symptoms
- Pulsing or grinding under braking; scored, heavily rusted disc edges; premature pad wear reported on some 2014–2018 cars
- Years affected
- 2014–2018 — Discs corrode fastest on low-annual-mileage cars driven mostly on EV power and regen
- Indicative repair (Ireland)
- €180–€320 for front pads and discs at an independent garage
- What to check before buying
- Look through the front wheels at the discs — a rusty, ridged outer edge is normal on a car that rarely uses its friction brakes, and is a frequent NCT advisory. Feel for pulsing through the pedal on the test drive. Budget for a pads-and-discs refresh; it is cheap insurance on any PHEV that has spent its life braking regeneratively.
High-temperature door-latch recall
Major — significant repair cost- Symptoms
- Door latch may not operate correctly in hot conditions; in the worst case a door could open while driving
- Years affected
- Cars built approximately May 2015 – March 2016
- Indicative repair (Ireland)
- Free under manufacturer recall — Mitsubishi dealer replaces the door latches
- What to check before buying
- This is a safety recall affecting cars built roughly May 2015 to March 2016. Verify completion by reg/VIN on the RSA recall portal (rsa.ie/recalls) or with a Mitsubishi dealer before buying, and insist any outstanding recall is carried out first. It is free, so there is no reason for an unfixed car to still be on the road.
Poor economy on a depleted battery / engine runs constantly
Minor — wear-and-tear- Symptoms
- Heavy petrol use on motorways or once the drive battery is flat; engine running almost continuously in cold weather; buyer disappointed after seeing brochure figures
- Years affected
- All years
- Indicative repair (Ireland)
- Not a mechanical fault — inherent to the design; mitigated by charging daily
- What to check before buying
- The Outlander PHEV only saves money if you can charge it regularly for short Irish commutes. On a flat battery it is a heavy ~1.9-tonne SUV on a modest petrol engine returning 8–9 L/100km. If the seller has no driveway or wallbox (they have been running it purely on petrol), the whole running-cost case collapses — confirm your own ability to charge before buying.
Who this car suits — and who should look elsewhere
Buyers with off-street parking and a home charger doing short daily Irish commutes — that is exactly where the PHEV genuinely saves money. Families wanting a roomy, 4WD, tow-capable SUV with rock-bottom motor tax and a proven, mechanically simple drivetrain.
Buyers with no way to charge (apartment dwellers, on-street parking) — a flat-battery Outlander is just a thirsty petrol SUV. Anyone buying a cheap 2014–2015 car without checking battery State-of-Health, or expecting brochure EV range from a decade-old pack.
Alternatives to consider
If the Mitsubishi Outlander PHEV doesn't suit, these comparable models are worth a look in the Irish market:
- →Toyota RAV4 Plug-in / Hybrid
- →Kia Niro PHEV
- →Hyundai Tucson PHEV
- →Ford Kuga PHEV
Before you buy or sell a Mitsubishi Outlander PHEV
Two quick checks pay for themselves on any used Outlander PHEV. First, check the car's NCT history before you buy — a missed or repeat-fail NCT often signals a chronic fault the seller is hoping you'll miss. Second, if you're weighing the Outlander PHEV against rival models, you can compare the Outlander PHEV against its rivals side-by-side on price, running costs and spec.
Selling instead? See what your Mitsubishi Outlander PHEV is worth with our free Irish valuation — it reads live comparable listings and returns a resale and trade-in figure in seconds, no signup.
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