Having problems with your 2000 Renault 181 ?

RENAULT LAGUNA 2.2DCI 2003 MODEL EXCESS CRANKCASE PRESSURE

\015 ENGINE RUNS FINE ON TICKOVER. TAKE THE VEHICLE OUT FOR A DRIVE AND WHEN YOU GET BACK IT HAS BLOWN THE DIPSTICK OUT AND THROWN OIL ALL OVER ENGINE. ALSO SEEMS TO BE EXCESS GREY SMOKE ON ACCELERATION.\015 Posted / edited by AnonymousUser on : 29-06-2020

Answers :

This is quite a common problem,especially with the 2.2 dci engine,although as usual Renault wont admit the problem.The reason your engine throws the oil after a run and not when stationary is this problem is caused by the turbo pressurising the crankcase.You can rev the engine all day but when theres no load on it then the turbo is not working at full pressure and all is well.
The cure for the problem is to fit a new rocker cover which incorporates part of the inlet manifold.The breathing system on these engines is complicated and the rocker cover has to handle both inlet gases AND exhaust gases and although no one can explain why a new cover cures it,I suspect the plastic the cover is made of is not robust enough and either becomes porous or warped and this allows gases into the crankcase,pressurising it and focing oil out either through the dipstick or it blows out the blanking plug in the timing cover.
It is not a massive job to replace the rocker cover as long as the injectors come out easily.If they dont then youre in real trouble.Good luck,Duncan.
I have an identical problem with a 2.2 dci Espace 2005 AND ONLY 44000 miles. Renault agents say they have never heard of this problem & the car is out of warranty!
\015\012Did the replacement rocker cover fix the problem? My local garage have removed the rocker cover but can't see any fault with it - what should they be looking for?? Could the problem be any thing else?
\015\012Thanks
\015\012John
Repair Help & Product Troubleshooting for 2000 Renault 181

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