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The aluminium or plastic cover bolted on the engine cylinder head is called rocker cover, the function of rocker cover is to keep the engine oil inside the cylinder head and stops it from leaking out, this task is accomplished by the rocker cover gasket. With time the rocker cover gasket becomes brittle and its ability to hold the engine oil inside the cylinder head decreases hence the engine oil starts leaking from the rocker cover.
If you notice any of the above mensioned signs, get your car checked by a professional mechanic.
It depend on the engine oil leakage, if its a small oil leak which does not reduces the engine oil level to the extent that it reaches below minimum level.
The cost of replacing a rocker cover gasket on a car depends on make, model, part price and labour time to do the job. On average the cost of replacing a rocker cover gasket on cars with one cylinder head is between £75 to £175. To find out the exact price on your car select the make and model of your car at the top of the page.
|Bmw||3 Series||£ 365.87|