Nissan Qashqai: MR20DE Timing Chain Tensioner Cold Start Rattle

The hydraulic timing chain tensioner in the MR20DE 2.0L petrol loses oil pressure when the engine sits overnight. On cold start, the slack chain rattles loudly against the timing cover for 5 to 30 seconds until oil pressure builds and the tensioner re-engages. Repeated rattle events accelerate chain and guide wear, eventually risking chain jump and catastrophic valve damage. This is the single most widely reported defect on J10 Qashqais in NZ and AU owner forums and workshop records.

• Loud rattling or clattering noise from front of engine on cold start
• Noise disappears within 30 seconds of start as oil pressure builds
• Possible check engine light or camshaft position sensor fault codes
• Rough idle immediately after cold start in cold weather

1. 1

   Start the engine cold and immediately listen for a metallic rattle from the timing chain cover at the front of the engine.

2. 2

   Record audio or video evidence.

3. 3

   Ask the seller directly if they hear any rattle on cold mornings.

Parts involved: Timing chain.

$900 to $2,500 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.

• “Has the timing chain tensioner or timing chain ever been replaced?”
• “Do you notice any rattling noise on cold start?”
• “What is the oil change interval and what oil grade is used?”

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.