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post #1 of (permalink) Old 18th February 2007 Thread Starter
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pre modus investigaton

I'm thinking about buying new diesel Modus...however I found ...
The following report at HonestJohn web site in connection with Renault diesels..

On 1.5DCIs EGR should open to allow carbon dioxide, (which acts as a cooling gas) into the combustion chambers when the engine is under load (>30% boost). This allows the combustion chamber temperature to drop and thus the temperature of the exhaust gases.
If it sticks in the closed position the exhaust gas temperature will rise causing
a) the turbo bearings to fail and
b) introduce engine oil into the induction system.
This can cause the engine to run on its crankcase oil until it is either stalled or goes bang.

Problems with EGR valves in Renault dCi engines are also the cause of rough running when the valve is stuck in the open position. In several cases turbos have blown but the EGR valve has not been replaced. Inevitably the new turbo unit will not last long.

Any feedback from members?
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pre modus investigaton Cars & motoring scen1c 6 1346 18th February 2007 09:00 PM
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