Renault Megane E-Tech PHEV Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Renault Megane E-Tech PHEV specialists. Compare prices on reconditioned, rebuilt and used engines for your plug-in hybrid Megane.
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3 Simple Steps to Finding the Right Replacement Engine
Clear information first, then the right engine and specialist for your exact vehicle.
Variant History
Renault Megane E-Tech PHEV Engine History & Specs at a Glance
The Renault Megane E-Tech Plug-in Hybrid represents a significant step in Renault's electrification strategy, bringing Formula 1-inspired hybrid technology to the family hatchback segment. First introduced on the Sport Tourer estate in late 2020 and arriving on the hatchback in mid-2021, the E-Tech PHEV effectively replaced conventional petrol and diesel Megane variants. The powertrain combines a naturally aspirated 1.6-litre petrol engine with two electric motors and a clutchless multi-mode gearbox, delivering 160hp and offering up to 30 miles of pure-electric range.
2020
Megane E-Tech PHEV first introduced on Sport Tourer estate; 1.6-litre naturally aspirated petrol engine (H4M 630) paired with two electric motors and a 9.8 kWh battery
2021
Hatchback version launched in the UK from £29,495; available in Iconic and R.S. Line trims
2021
present - E-Tech PHEV becomes the only non-EV powertrain option in the Megane range
2022
Continued production with minor updates; battery warranty remains 8 years/100,000 miles
2024
present - Megane E-Tech PHEV remains available alongside the fully electric Megane E-Tech EV
Every engine fitted to the Renault Megane E-Tech PHEV is covered below, with UK rebuilt pricing and known failure points.
Engine Codes & Pricing
Renault Megane E-Tech PHEV Engine Codes Specifications & Replacement Cost
Find your exact engine code, specs and UK replacement cost guide.
H4M 630 — 1.6 16V E-Tech PHEV (2020-present)
Power Output
160hp (118kW) system total - 91hp petrol + 64hp electric motor
Renault Megane E-Tech PHEV Engine Problems Repair Cost vs Replacement
The Renault Megane E-Tech PHEV (H4M 630) is a relatively new powertrain, but several issues have already been reported by UK and European owners. The 1.6-litre petrol engine itself is generally reliable, but the hybrid system's integration with the clutchless multi-mode gearbox introduces unique failure points. Rebuilt engines supplied through EnginesMarket include upgraded components addressing known failure points, plus a minimum 12-month unlimited-mileage warranty.
Common failure points and repair options
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Gearbox & Electric Motor Failure
Affected
Renault Megane E-Tech PHEV (H4M 630, 2020-present)
Typical failure mileage
20,000-70,000 miles
Root cause
The E-Tech PHEV uses a clutchless multi-mode dog gearbox developed by Renault. Some owners report a clunky or jerky transition between petrol and electric power, with the power sources switching at around 30mph. More seriously, some owners have reported complete gearbox failure requiring replacement of one of the electric motors - with one owner reporting failure at just 29,000 miles, one month after warranty expiry.
Repair options
Repair tier
Dealer price
Specialist price
Software Update / Transmission Relearn
£150-£300
£100-£200
Gearbox / Electric Motor Replacement
£4,000-£7,000
£2,500-£4,500
Full Powertrain Replacement
£7,000-£10,000
£4,500-£7,000
Our recommendation
If your Megane E-Tech PHEV exhibits clunky shifts or jerky transitions, have the software checked first - many drivability issues can be resolved with a dealer-level update. If you experience more serious drivetrain noise or failure, a specialist inspection is essential. Gearbox and electric motor replacement is expensive, so always obtain multiple quotes before committing.
The charging flap mechanism is a known weak point, with reports of the flap failing to open or close properly. Some owners have also reported intermittent failures to begin charging.
Repair options
Repair tier
Dealer price
Specialist price
Charging Flap Mechanism Repair
£150-£300
£100-£200
Charging System Diagnostics
£150-£300
£100-£200
Battery Management System Repair
£500-£1,500
£300-£900
Our recommendation
If your Megane E-Tech PHEV won't charge or the charging flap is stuck, have it inspected promptly. The flap mechanism repair is relatively inexpensive, but charging system diagnostics may be more complex. The 9.8 kWh battery carries an 8-year/100,000-mile warranty, so battery-related issues may be covered if the car is still within the warranty period.
Don't Let Powertrain Failure Write Off Your Renault Megane E-Tech PHEV
Whether your Megane needs a software update, gearbox repair, or a full rebuilt engine, EnginesMarket connects you with vetted UK specialists who understand the E-Tech PHEV's unique hybrid system. Compare prices today - no obligation, just transparent quotes with a minimum 12-month warranty on every rebuilt unit.
Renault Megane E-Tech PHEV Engine ReplacementFrequently Asked Questions
Everything Renault Megane E-Tech PHEV owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.
A replacement H4M 630 engine for a Renault Megane E-Tech PHEV typically costs £2,000-£4,500 for the supply-only unit. Fitting adds 10-14 hours of labour at £65-£90/hr, bringing the total fitted cost to £3,000-£5,500 at an independent specialist. Dealer pricing is significantly higher, with some owners reporting quotes in the £5,000-£8,000 range for a full replacement.
Used engine supply: £2,000-£3,000
Reconditioned supply: £3,000-£3,800
Rebuilt supply: £3,800-£4,500
Gearbox/electric motor replacement (if required): additional £2,500-£4,500
The most common sign is a clunky or jerky transition between petrol and electric power, particularly at around 30mph. More serious symptoms include drivetrain noise, loss of power, warning lights, and complete transmission failure. Some owners have reported gearbox failure at mileages as low as 29,000 miles.
Clunky shifts and jerky transitions are early warning signs
Drivetrain noise or vibration indicates more serious mechanical issues
Complete failure requires gearbox and/or electric motor replacement
The E-Tech PHEV is relatively new, so long-term reliability data is limited. The 1.6-litre petrol engine itself is a proven unit, but the complex hybrid gearbox has been a source of complaints. Some owners report trouble-free ownership, while others have experienced significant drivetrain issues at relatively low mileages.
The petrol engine is generally robust and reliable
The gearbox and electric motor are the primary areas of concern
The 9.8 kWh battery carries an 8-year/100,000-mile warranty
It depends on the vehicle's value. Early examples (2020-2021) are worth £11,000-£18,000 - a full engine replacement at £3,000-£5,500 may represent 20-40% of the car's value, which is often justifiable if the rest of the car is in good condition. However, if the gearbox and electric motor have also failed, total repair costs can exceed £7,000, making replacement uneconomical.
Evaluate the total repair cost vs. the vehicle's current market value
Consider part-exchange or selling for spares if repair costs exceed 60% of value
The Megane E-Tech PHEV (plug-in hybrid) combines a 1.6-litre petrol engine with two electric motors and a 9.8 kWh battery, offering up to 30 miles of pure-electric range. The Megane E-Tech Electric is a fully electric vehicle with a 40kWh or 60kWh battery and no combustion engine. They are completely different vehicles with different platforms and powertrains.
PHEV: 1.6 petrol + electric motor + 9.8 kWh battery; 160hp; 30-mile EV range
EV: 100% electric; 40kWh or 60kWh battery; 220hp; up to 292-mile range
Check your registration to confirm your exact vehicle type
The 9.8 kWh battery takes approximately three hours to charge from zero to 100% using a Type 2 charger, or just over four hours using a domestic three-pin socket. The onboard charger operates at up to 3.6kW.
Type 2 charger: ~3 hours for a full charge
Domestic 3-pin socket: ~4+ hours for a full charge
The battery warranty covers 8 years or 100,000 miles
Compare Renault Megane E-Tech PHEV Engine Prices Today
Comparing quotes for your Renault Megane E-Tech PHEV is completely free and carries no obligation. Enter your registration above to get matched with vetted UK specialists who understand the E-Tech PHEV's unique hybrid system. Get transparent, itemised pricing for used, reconditioned and rebuilt units - and choose the option that fits your budget.
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