Renault Megane RS
High-revving 2.0-litre — naturally aspirated in the Clio RS III (screams to 7,500 rpm like a small touring car engine), twin-scroll turbo in the Megane RS making 165-201 hp. The NA version rewards every rev, the turbo pulls hard and early. Cam adjuster and timing belt are the big service items — always do both together at 120,000 km / 6 years. The VVT oil strainer gunks up with lazy oil changes — 10,000 km max intervals. Let the turbo cool down after track sessions.
RS with Thrust
220 hp turbo in the Megane RS — Cup chassis optional, LSD standard. Agile and quick on country roads.
Engine Weaknesses 6
The highly tuned F4R-RS in the Megane RS is frequently driven hard. Insufficient cool-down periods after full-load operation damage the turbo bearings. Recommended: 2–3 minutes idle before switching off after spirited driving.
Symptoms: Whistling from turbo area, oil in intercooler
The timing belt change on the F4R-RS requires full removal of intake manifold and ignition coils. Workshop costs 530–880 € at independents, up to 1,600 € at Renault dealers. Always replace water pump at the same time. Interval: 120,000 km or 6 years.
Symptoms: No warning before failure — check service book for documented replacement
Sportily driven Megane RS with F4R-RS develop oil leaks at valve cover, turbo oil feed lines and crankshaft seals, accelerated by high loads and temperatures.
Symptoms: Oil traces under engine, dropping oil level, oil smell in cabin
As with the standard F4Rt, hot restart problems occur on the RS after intensive driving and subsequent shutdown, caused by fuel pressure drop. The hot engine bay vaporises fuel in the lines.
Symptoms: Poor warm restart, extended cranking, engine then runs normally
The Megane RS is often driven on track. The standard clutch wears significantly faster than in normal road use. Many used examples already have performance clutch upgrades.
Symptoms: Clutch slip under acceleration, spongy clutch feel, burning smell
The oil strainer of the inlet camshaft VVT adjuster clogs up with deposits from extended oil change intervals. Result: poor cold-start performance, rattling and in the worst case valve damage. Repair costs 400–1,200 €.
Symptoms: Rattling on cold start (diesel-like sound at front), poor part-throttle performance, difficult hot start
Vehicle Weaknesses 6
Suspension springs, shock absorbers and steering joints fail above-average on the Megane III. TÜV reports confirm this as a clear weak point. EDC occasionally shows vibrations on pull-away.
The soft-touch surface of the dashboard peels off and leaves sticky residue. Typical problem on all Renault models of this era fitted with this coating.
Heating warms insufficiently, rain sensor operates unreliably. Air conditioning fails through defective compressors or control units.
Like its predecessor, headlights and rear lights on the Megane III fail above-average. Indicators are the only lighting component with average reliability.
The manual clutch occasionally tends to judder and squeal on pull-away. The gearbox itself is considered fundamentally reliable. Progressive squealing means a clutch replacement is due.
Front parking sensors frequently trigger for no reason, often caused by number plate holders. Rain sensor and other electronics components are also failure-prone.
Reports & Tests
Susceptible suspension, worn springs, dampers and steering joints are typical weak points. Lighting consistently below the class average. Brake lines and handbrake are regularly flagged.
