According to Au7o's analysis of 110+ owner reports, the 2021 Renault Megane has 2 documented known issues, with 1 rated critical. The most serious is EDC Dual-Clutch Gearbox Judder, Clutch Pack Wear and Mechatronic/TCU Failure (Mégane III/IV) ($1,000-$3,000 repair). The most commonly reported issue is Injection System Fault Warning with 110 owner reports. Across all issues, repair costs range from $100 to $3,000. DIY maintenance guides at au7o.io.
On the 2011-2022 Renault Megane, the Getrag-built EDC six- and seven-speed dual-clutch automatics fitted to the Mégane III and IV develop low-speed judder when pulling away, jerky shifts, overheating warnings in stop-start traffic and delayed or clunky reverse engagement. Root causes are dry-clutch friction-pack wear (often by 50,000-75,000 miles), mechatronic valve-block restrictions and TCU software/hardware faults — dealers have acknowledged faulty double clutches as a known problem, and some failures cause complete loss of drive.
Common Symptoms
Shudder or judder when pulling away from rest
Jerky, abrupt low-gear shifts in city driving
Gearbox overheating warning in stop-start traffic
Delay or clunk when selecting reverse
'Check gearbox' warning, sometimes with loss of drive
How to Fix
Mild judder is sometimes cured by a TCM/TCU reprogram and adaptation reset; worn clutch packs need replacement (roughly $1,000-2,000), and mechatronic or TCU failures require unit repair or replacement at $1,500-3,000. Keep to Renault's fluid-change and software-update schedule.
High ConfidenceVerified0 reportsLast reported by owners Invalid DateReviewed Jun 2026
Community Reported
110 owners
On the 2003-2023 Renault Megane, the Megane displays an "Injection Fault" warning on the dashboard, which can be triggered by numerous sensors and components. Common causes include the crankshaft position sensor, throttle body, and fuel pressure regulator.
Diagnose with Renault CLIP or compatible diagnostic tool to identify the specific fault code. Common fixes include crankshaft sensor replacement, throttle body cleaning, and fuel pressure regulator replacement.
According to Au7o's analysis of 110+ owner reports, the 2021-2021 Renault Megane has 2 documented issues. The most frequently reported are: EDC Dual-Clutch Gearbox Judder, Clutch Pack Wear and Mechatronic/TCU Failure (Mégane III/IV), Injection System Fault Warning. Of these, 1 is rated critical and should be addressed promptly.
Is the Renault Megane reliable?
The 2021-2021 Renault Megane has 2 known issues documented across 110+ owner reports. 1 issue is rated critical: EDC Dual-Clutch Gearbox Judder, Clutch Pack Wear and Mechatronic/TCU Failure (Mégane III/IV). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Renault Megane problems?
Repair costs for known Renault Megane issues range from $100 to $3,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, EDC Dual-Clutch Gearbox Judder, Clutch Pack Wear and Mechatronic/TCU Failure (Mégane III/IV), typically costs $1,000-$3,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2011-2022 Renault Megane EDC Dual-Clutch Gearbox Judder, Clutch Pack Wear and Mechatronic/TCU Failure (Mégane III/IV)?
The Getrag-built EDC six- and seven-speed dual-clutch automatics fitted to the Mégane III and IV develop low-speed judder when pulling away, jerky shifts, overheating warnings in stop-start traffic and delayed or clunky reverse engagement. Root causes are dry-clutch friction-pack… Repairs typically run $1,000-$3,000. Severity: high.
What is the 2003-2023 Renault Megane Injection System Fault Warning?
The Megane displays an "Injection Fault" warning on the dashboard, which can be triggered by numerous sensors and components. Common causes include the crankshaft position sensor, throttle body, and fuel pressure regulator. Repairs typically run $100-$500. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
