Renault (Renault-Nissan Alliance, also used by Dacia/Lada) K7M — 1.6L Engine
1.6L · 75-90 hp hp · 128-137 Nm Nm
The K7M is Renault's 1.6-litre petrol, a simple single-cam, eight-valve four-cylinder built 1996-2014 and rated at 75-90 hp. It was used across the Renault-Nissan Alliance and in Dacia and Lada models, including the Megane I, Clio II, Kangoo, Logan, Sandero and Duster, and the Lada Largus. The camshaft is driven by a toothed belt, and the service schedule ties the belt and water pump together. No recurring faults are documented here for this engine, so work on it is mostly routine servicing: belt and pump, plugs, fuel filter, coolant and thermostat. Torque figures on this page cover the cylinder head, main and big-end bearings, flywheel, belt tensioner and idler, camshaft sprocket, crank pulley, manifolds, water pump, thermostat housing, alternator, engine mounts and valve cover.
No specific failure pattern is recorded on this page, so diagnose it the conventional way. Confirm the timing belt and water pump history first, as an old belt is the biggest risk on any engine of this age. Then work through ignition, fuel filter and air filter condition, all of which are on short intervals. Overheating calls for checking the thermostat and coolant age against the schedule.
Check first
- Timing belt and water pump age; both are due every 60000 km.
- Spark plugs, due every 30000 km.
- Inline fuel filter ahead of the pump, due every 30000 km.
- Coolant condition; flush and refill every 60000 km.
- Valve cover gasket for seepage, replaced on condition.
Engine overview
Vehicles with this engine
Common torque specifications
| Cylinder Head Bolts Stage1 Nm | 20 unconfirmed |
|---|---|
| Cylinder Head Bolts Stage2 Nm | 40 unconfirmed |
| Cylinder Head Bolts Stage3 Degrees | 90 unconfirmed |
| Cylinder Head Bolts Stage4 Degrees | 90 unconfirmed |
| Main Bearing Caps Nm | 52 unconfirmed |
| Big End Bearing Bolts Nm | 35 unconfirmed |
| Flywheel Bolts Nm | 40 unconfirmed |
| Timing Belt Tensioner Bolt Nm | 25 unconfirmed |
| Timing Belt Idler Bolt Nm | 25 unconfirmed |
| Camshaft Sprocket Bolt Nm | 80 unconfirmed |
| Crankshaft Pulley Bolt Nm | 120 unconfirmed |
| Spark Plugs Nm | 25 unconfirmed |
| Oil Drain Plug Nm | 25 unconfirmed |
| Thermostat Housing Bolts Nm | 10 unconfirmed |
| Water Pump Bolts Nm | 10 unconfirmed |
| Intake Manifold Bolts Nm | 15 unconfirmed |
| Exhaust Manifold Nuts Nm | 20 unconfirmed |
| Alternator Mounting Bolt Nm | 45 unconfirmed |
| Motor Mount To Engine Nm | 50 unconfirmed |
| Motor Mount To Chassis Nm | 65 unconfirmed |
| Valve Cover Bolts Nm | 8 unconfirmed |
Figures marked unconfirmed could not be cross-checked against a workshop source. Verify against the vehicle’s own documentation before tightening.
Service intervals
| Summary | Engine Oil and Filter @ 10000 km; Timing Belt (Distribution Belt) @ 60000 km; Water Pump (Coolant Pump) @ 60000 km; Spark Plugs @ 30000 km; Air Filter @ 15000 km; Fuel Filter (inline, pre-pump) @ 30000 km; Serpentine / Accessory Belt (poly-V) @ 60000 km; Coolant Flush and Refill @ 60000 km; Thermostat @ 90000 km; Valve Cover Gasket (Rocker Cover Gasket) @ on_demand km |
|---|
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.