When servicing a Peugeot 308, one area a garage should look at is oil sludge caused by contaminated injectors which reduces oil flow to critical moving parts. In many cases when the turbo has failed, the engine components such as the crank shaft has already been subject to wear. It is important when servicing these engines to inspect the oil filter when removed, if there are signs of oil sludge then the banjo bolt and gauze filter on the vacuum pump should be checked. If oil sludge is present, then there should be some manual cleaning of the crankcase including oil sump removal. The engine should then be flushed and oil and filter change carried out. It is also important to clean the fuel system regularly as the oil contamination begins with contaminated injectors. The customer should be advised accordingly on the action which is required.
This model also uses the 1.6 hdi engine for which Forté have produced a Technical Bulletin.
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