Thought it was the engine oil that was dirty but I changed and the problem is still there.
The colour smoke an engine produces gives a good idea of the fault: -
Black/dark grey smoke is partially burned fuel caused by the right amount of fuel being injected badly or by a small excess of fuel.
Blue/blue-grey smoke is burning engine oil.
White smoke is either steam (usually from coolant ingress) or massive amounts of unburned fuel. A few possible causes of the latter is strangled exhaust, one or more injectors stuck open or a damaged injector (broken nozzle).
If there is no coolant loss I suggest you remove the fuel injectors for testing.
SOURCE: Renault Scenic 1.9DCI Expression
Sounds to me like the turbo seals have gone and it has started to run on it's own engine oil. We have come accross this problem lots of times and 1.9dti and dci engines are bad for this. Only way to stop engine completely blowing up is to stall it as you did.
SOURCE: 2001 Dodge grand caravan sport. Transmission
I need a little mor info. But the reason for the being stuck in 2nd gear is because when something goes wrong with the tranny. it goes into "LIMP" mode wich keeps the trans. from shifting out of 2nd when you are going forward. It does sound like your trans. is gone out though.
SOURCE: Renault Megane Scenic 1.6 petrol jerking in 1st & 2nd.
check hoses for splits...i had the same problem.
SOURCE: auto box oil change Renault Scenic, gearbox stuck in park
Did you replace transmission filter? It may be blocked with dirt and is causing gears to slip...
SOURCE: renault scenic 1.6 16v. occasionally will not start
This could be a possibility of a bad connection to the engine speed sensor or in other terms flywheels sensor or TDC sensor located under the thermostat housing screwed to the gearbox by two bolts, when the problem occurs try playing around with the connector connected to the TDC sensor and then try to start it, renault has a new modified connector and TDC sensor on the market.
I hope this helps.
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