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=Leaking Rocker Cover Gaskets= ==Problem== This is a common issue on the BMW M62 engine. Although in itself not a critical issue, the slow seepage of oil can fill the spark plug wells, the coil-pack then gets saturated with oil and can fail. There doesn't seem to me a specific age or mileage that the seals start to fail, sometimes only one side will go, sometimes both. ==Symptoms== The initial symptoms are a judder when pulling away or a quick flashing Check Engine Light, this happens when the oil is interfering with the spark getting from the coil pack to the spark plug. ==Cure== Replacing the rocker cover gaskets is a strait forward job, although one does have to de-pressurise the fuel line if you are replacing the LH cover. It can get a bit messy as you are dealing with the oil system. It is often "good value" to let a garage do this job for you as it should take them approximately 2-3 hours (max). Sometimes just tightening the covers can cure the problem if they have worked loose over time - but it is important not to over tighten them (10Nm) and they must be tightened in the correct sequence (See WSM) ==Parts== The part numbers for replacement are: LH # LR003813 RH # LR003812 Cost is approximately £20.00 per side.

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