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Message: <blockquote data-quote="FIRZ67" data-source="post: 632648" data-attributes="member: 4633">Jasjay,Leaking issues on N46 engine for year 2005 car is common. Based on the aging factor and mileage run, those should be considered as wear and tear. To resolve a leak issues, I think you are quite aware on the cost. Roughly it should be in the region of 1-2k. Let say parts change/ repair involved is valve cover, vacuum pump is the most expensive but it's repairable, oil sump etc. other than that should be consider minor. Thing that you should pay attention is the valve seal. If you start the car and let it idle for 10-20 minutes and there is a white smoke from exhaust, then the valve seal need repair. The cost will be around 2-3k and as extensive as top overhaul.</blockquote>