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CriticalCommonEngine

Renault Megane: 1.3 TCe Timing Chain Stretch and Rattle at Low Mileage

1.3 TCe Timing Chain Stretch and Rattle at Low Mileage is a common engine fault on the Renault Megane on the 2018 onward cars, and we rate it critical. Putting it right costs $1,500 to $4,500 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 27 documented faults on the Renault Megane.

Vehicle
Renault Megane
Engine
1.3L
Years
2018 onward
Fuel
petrol
System
Engine

This page covers the Renault Megane as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Renault Megane faults27 documented faults on this model

What you are looking at

The front of a dual overhead camshaft engine with the timing cover removed, exposing the timing chain and sprockets.Example of the part — not this vehicle

The front of a twin-cam engine with the timing cover off — chain, sprockets and guides.

Logansenf · CC BY-SA 4.0 · Wikimedia Commons

What goes wrong

The 1.3 TCe engine (H5H, developed jointly with Mercedes-Benz) fitted to Megane IV is affected by premature timing chain stretch — chain slack appears well before expected service life, sometimes below 60,000 km. The chain tensioner fails to maintain adequate tension, creating a characteristic rattle on cold start that worsens over time. Continued operation risks timing variance leading to misfires, and in extreme cases chain jump causing significant engine damage. The issue is documented across Renault and Mercedes models sharing this engine family.

What you would notice

  • Cold-start rattle from engine lasting several seconds
  • Rattle intensifies after oil changes until pressure builds
  • Rough running or misfires in advanced chain stretch cases
  • Engine warning light for VVT or timing deviation
  • Noise reduces once engine reaches operating temperature

How to check it

Where to look. Timing chain and tensioner assembly, front-top of engine

  1. Start engine from cold immediately — a healthy chain is quiet within 2 seconds.

  2. Rattle persisting beyond that is a warning sign.

  3. Check oil service intervals are short (10,000 km or less).

  4. Scan for VVT fault codes.

  5. Ask whether any chain or tensioner work has been done.

Parts involved: Timing chain.

What it costs to put right

$1,500 to $4,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

  • “Does the engine rattle on cold start and for how long?”
  • “Has the timing chain or tensioner been inspected or replaced?”
  • “What is the service interval used and what oil specification?”

Now check the Renault Megane you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Renault Megane buyer questions

Is 1.3 tce timing chain stretch and rattle at low mileage serious on a Renault Megane?

We rate it critical and common on the Renault Megane. The 1.3 TCe engine (H5H, developed jointly with Mercedes-Benz) fitted to Megane IV is affected by premature timing chain stretch — chain slack appears well before expected service life, sometimes below 60,000 km. The chain tensioner fails to maintain adequate tension, creating a characteristic rattle on cold start that worsens over time. Continued operation risks timing variance leading to misfires, and in extreme cases chain jump causing significant engine damage. The issue is documented across Renault and Mercedes models sharing this engine family.

How much does it cost to fix on a Renault Megane?

$1,500 to $4,500 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Renault Megane years are affected?

Our research records this fault on the 2018 onward Renault Megane. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Start engine from cold immediately — a healthy chain is quiet within 2 seconds. Rattle persisting beyond that is a warning sign. Check oil service intervals are short (10,000 km or less). Scan for VVT fault codes. Ask whether any chain or tensioner work has been done. Look here: Timing chain and tensioner assembly, front-top of engine