Nissan Leaf Problems & Known Issues
The most common Nissan Leaf problems ranked by severity — what to watch for, what it costs to fix, and what happens if you ignore it.
Generations
1st Gen — First Generation
2011–2017
80kW Electric Motor
2nd Gen — Second Generation
2018–2024
110kW Electric Motor, 160kW Electric Motor (e+)
Top issues to watch for
The most serious Nissan Leaf problems ranked by severity. We track 6 known issues — here are the ones you need to know about first.
MOT data shows brake pedal travel defects at 4.2x fleet average, with NHTSA complaints describing sudden excessive braking force and pedal feel issues. The Leaf's regenerative braking system integrates with conventional hydraulic brakes, and the brake-by-wire system can develop faults that affect pedal feel and braking consistency. This represents a significant safety concern as braking behaviour becomes unpredictable.
What happens if ignoredUnpredictable braking behaviour poses an immediate safety risk. The vehicle should not be driven until the fault is diagnosed and repaired. Issues may require brake system bleeding, brake line replacement, or brake servo unit replacement depending on the underlying cause.
Independent garage
£200–£600
The Leaf exhibits accelerated wear of front suspension bushes and ball joints compared to conventional vehicles of similar weight. MOT data shows failure rates 4.7x higher than fleet average, with some components becoming detached (9.2x fleet average). The additional 200-300kg battery weight concentrated low in the chassis increases loading on suspension components. Later 2nd generation cars show similar patterns despite revised suspension geometry.
What happens if ignoredComponents becoming detached pose an immediate safety risk and will cause MOT failure. Worn bushes and joints cause poor handling, irregular tyre wear, and eventual failure of adjacent components. Typical repair involves replacing multiple bushes, ball joints and potentially wishbone arms. The car remains driveable with minor wear but should be repaired promptly when play is detected.
Independent garage
£300–£600
The Leaf shows multiple parking brake defects at rates well above fleet average - inoperative on one side (5.6x fleet average), insufficient efficiency (3.7x fleet average), and excessive lever travel (3.8x fleet average). The regenerative braking system means the conventional brakes see light use, leading to corrosion of parking brake cables and mechanisms. Rear brake shoes and adjusters also suffer from lack of regular use.
What happens if ignoredAn ineffective parking brake will cause MOT failure and presents a safety risk on slopes. Seized cables can cause brake binding and premature pad wear. Most issues are resolved by cable adjustment or replacement. In severe cases, rear brake shoe replacement and wheel cylinder overhaul may be required.
Independent garage
£150–£400
The passenger seat occupancy sensor fails, causing the airbag warning light to illuminate and potentially preventing correct airbag deployment. NHTSA received 87 complaints specifically about this issue, with many owners reporting B1018 diagnostic codes. Nissan issued TSB NTB18-071 and recall 18V-325 to address the problem, but not all vehicles have been updated.
What happens if ignoredA faulty occupancy sensor may prevent the passenger airbag from deploying in a collision, creating a significant safety risk. The sensor and seat mat assembly require replacement. This is not a DIY repair and must be completed by a qualified technician with proper airbag handling procedures.
Independent garage
£400–£600
18V-325
2 more known issues tracked
Including wear items, electrical niggles, and generation-specific problems. Check a specific car to see which issues apply to its age and mileage.
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MOT failure hotspots
Based on DVSA MOT test data. These are the items where the Nissan Leaf fails at a significantly higher rate than the average car.
Suspension pin, bush or joint
Suspension · 40-60k miles
MOT failure rate: 9.2x the fleet average
Sample: 44,987 tests
Brake on any wheel grabbing severely
Brakes · 40-60k miles
MOT failure rate: 8.2x the fleet average
Sample: 18,059 tests
Parking brake inoperative on one side
Brakes · 100-120k miles
MOT failure rate: 5.6x the fleet average
Sample: 2,976 tests
Service brake pedal has insufficient reserve tr...
Brakes · 20-40k miles
MOT failure rate: 5.3x the fleet average
Sample: 37,856 tests
Seat mounting fault
Bodywork · 20-40k miles
MOT failure rate: 5.3x the fleet average
Sample: 29,360 tests
Technical service bulletins & recalls
Official manufacturer notices issued to dealerships. If a car hasn't had recall work done, it needs doing — check with the dealer network.
NTB18-071
Occupant Classification System (OCS) Malfunction
Passenger airbag light stays on due to faulty seat occupancy sensor. Replacement sensor and mat assembly required. Check that recall 18V-325 has been completed.
1st Gen · EM57 · Issued: 2018-08
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Nissan Leaf reliability FAQs
What are the most common problems with the Nissan Leaf?
The Nissan Leaf has 6 known issues across 3 severity levels. The most serious are: Service brake pedal travel issues.
Is the Nissan Leaf reliable?
The Nissan Leaf has 1 dangerous and 4 major known issues. Most can be avoided with a thorough pre-purchase check and full service history.
How much does it cost to fix Nissan Leaf problems?
Repair costs range widely. The most significant issue (Service brake pedal travel issues) costs £200–£600 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.
Which Nissan Leaf generation is most reliable?
The 1st Gen (2011–2017) has the fewest dangerous issues (1). However, condition and service history matter more than generation — a well-maintained earlier car can be more reliable than a neglected newer one.