If you are considering buying a used Renault Megane, these are the common problems worth knowing about first. Our garage database tracks 3 known faults for this model, 2 of them rated high severity. Every one below is a repair bill a seller has good reason not to mention.
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Check a Renault Megane advert (free) →The Renault Megane has 3 known faults in our database across 2 generations, 2 of them rated high severity. The most serious are fuel system (delphi high-pressure fuel pump breaks down internally) and gearbox (EDC (Efficient Dual Clutch) automatic transmission juddering and TCM). None of them makes the car a bad buy on its own; the risk is a seller who knows and says nothing.
That is a count of the faults we hold, not a reliability score. Popular cars get written about more, and a newer generation has had less time to show its faults.
No year is a write-off on its own. What matters is which serious faults a given year and engine can have, and whether the car in front of you has had them fixed.
Each one is set out in full below, with the symptoms, the typical mileage and a rough repair cost.
One owner each, in their own words rewritten as a line, and not counted in our risk scoring. A fault joins the list above once a second report or an editorial source backs it.
One owner each, in their own words rewritten as a line, and not counted in our risk scoring. A fault joins the list above once a second report or an editorial source backs it.
Sellers rarely admit these faults outright
We track 7 specific phrases sellers use in adverts to soft-pedal these exact issues. Paste any Renault Megane advert and we check it in seconds.
Check an advert now (free) →Recall work is done by the manufacturer, and GOV.UK says you will not usually have to pay for it. These are the 10 DVSA recalls for the Megane, newest first. They do not tell you whether this particular car has had the work: for that, put the registration into the free GOV.UK MOT history check, which shows a recall status where the manufacturer shares it, or ask a franchised dealer to check the VIN.
For certain vehicles a concern involving the electric traction reducer parking brake mechanism actuator or gearbox engagement actuator within the transmission may result in the parking brake mechanism actuator no longer correctly positioning the locking pawl in the "P lock".
Put right by: Replacement of the electric traction reducer parking brake mechanism actuator or gearbox Engagement Actuator.
There is a potential for the internal aggression in the fuel hose causing a fuel leak.
Put right by: Replace the fuel supple pipe
Incorrect positioning of the wiring causing a risk of the service indicator or vehicle stop warning light coming. The vehicle engine may no longer start or even shut down during use.
Put right by: Check the battery wiring replacing it if necessary and in any case protecting it.
The curtain airbag (one or both side) may not deploy in the event of a side impact because the pyrotechnic mix ratio in the ignitor could be incorrect..
Put right by: Recall the vehicles that are likely to be affected and check the serial number of the curtain airbag. Replace airbag if required.
The rear door child locks may deactivate when a door is slammed. There will be no warning that the child lock has gone from active to inactive.
Put right by: Recall the vehicles that are likely to be affected and check the door child locks are to specification. If they are not they are to be replaced with ones that are to specification.
In certain acceleration cases the automatic gearbox software does not engage the clutch fully and therefore the driver could experience a loss of drive and/or engine judder. The gearbox overheating warning light may also be displayed and there is a risk of loss of acceleration and or engine jerk.
Put right by: Recall the vehicles that are likely to be affected and update the software for the automatic gearbox.
On affected vehicles the drive to brake vacuum pump may fail. This may cause a loss of brake servo assistance and a hard brake pedal. It may also cause a reduction in engine power.
Put right by: Check the manufacture date of the vacuum pump and where necessary replace the pump.
It is possible that the rear body shelf fixing may not be secured to the vehicle sufficiently. This may lead to the detachment of the shelf and place other road users at risk.
Put right by: Recall all affected vehicles and fit additional fixings.
The rear spoiler may detach at high speed due to high variance in temperature change aggressive car wash systems or use of racks as they may weaken the spoiler mouldings.
Put right by: Recall the vehicles that are likely to be affected for rebonding or reinforcement of the rear tailgate spoiler (depending on type of tailgate).
The injection computer requires reprogramming. If this is not carried out reduced braking assistance may be noticed
Put right by: Preventive operation: 1. Reprogramme the injection computer; 2. Reconfigure the UPC computer.
Recall data published by the Driver and Vehicle Standards Agency under the Open Government Licence v3.0. A recall listed here may not apply to every car of this model: the build dates and the registration check are what decide it.
An overdue cambelt is the most expensive thing a seller can fail to mention on a used Megane. These are the figures UK specialists work to.
The K9K schedule is 72,000 miles or 5 years, whichever comes first. Intervals vary by variant, with catalogue figures of 150,000 km / 6 years quoted for the Clio 4 with DPF, so the shorter 72,000 miles / 5 years is recorded. The water pump, tensioners and idler pulleys must be replaced simultaneously.
Chain driven, and known for stretching. The cause is low oil pressure, fuel dilution of the oil and a clogged chain-lubrication oil jet, all made worse by the engine's notorious excessive oil consumption. Replace as a full kit rather than a chain alone.
Renault markets the dry-clutch EDC as sealed for life, but specialists advise an oil change roughly every 80,000-120,000 km (50,000-75,000 miles) or 5-7 years; the shorter end is recorded. The oil degrades and accumulates metallic wear particles, so service sooner on hard or town use.
Always confirm against the vehicle handbook. Intervals vary by engine, and several manufacturers revised theirs after failures in service.
Three stand out. Fuel system: delphi high-pressure fuel pump breaks down internally (typically 60000 to 120000 miles). Gearbox: EDC (Efficient Dual Clutch) automatic transmission juddering and TCM. Brakes: electronic handbrake failure: the motor and cable unit, its wiring or the control module fails. The full list above is grouped by generation, with typical mileage and a rough repair cost for each.
No Renault Megane year is a write-off, but the Megane II (2002 to 2008) carries the most serious faults: fuel system. The Megane III (2008 to 2016) has high-severity faults on record too. Year matters less than whether the specific car has had the known fixes, so check the history for them.
Ask the seller about the fuel system, gearbox and brakes faults on this page and whether they have been fixed, with invoices. On the test drive watch for flashing glow plug or engine management light, severe juddering when pulling away and 'Check Handbrake' warning message. Read the MOT history for repeat advisories, then paste the advert into the free check, which reads it against all 3 known faults before you travel. Check a Renault Megane advert →
The DVSA lists 10 safety recalls for the Renault Megane issued between 2012 and 2025. The most recent, from September 2025, is "Risk of parking brake actuator failing". Recall work is done by the manufacturer, and GOV.UK says you will not usually have to pay for it. This list is by model, so it cannot tell you whether one particular car has had the work: the free GOV.UK MOT history check shows a recall status from the registration where the manufacturer shares it, and a franchised dealer can check the VIN.
Owners report 48.1 mpg on average across the Renault Megane engines with data, about 82% of the official combined figure. The gap between official and real-world economy varies a lot by engine, so the Real MPG page lists every engine and generation separately, from 1,623 owner submissions. Renault Megane Real MPG by engine →
Looking at a Renault Megane right now? Check the advert before you go and see it.
If you used to check the Honest John “Good & Bad” section before the site closed in 2026, this page is where that information now lives. We rebuilt the Renault Megane owner-report history from the archived Honest John dataset, added our own research, specialist and owner-club sources and DVSA recall data, and we keep it free. Each fault above is badged with its source. The same data feeds our free advert check, which reads a listing against every known fault for the exact engine and year.
CarAdCheck is not affiliated with Honest John or Volkswagen Financial Services. What happened to Honest John, and where each feature lives now.
Knowing what a Renault Megane goes wrong with is half of it. The rest is reading the advert and checking the car's history before you hand any money over.