Two problems related to engine oil leaking have been reported for the 2002 BMW 325. The most recently reported issues are listed below.
Had major oil leak from valve cover area. Was putting a quart of oil into the car every 500 miles. When brought to dealership found out that valve cover was cracked. Dealership repaired and replaced the valve cover and gaskets.
Was putting oil into the engine every 500 miles for about 2-3 months and finally decided enough was enough. No accidents with car. Took the car to the dealership, technician performed leak down test on engine and noticed cylinder 1 reading at 50 psi and #2 cylinder reading at 5 psi. Performed compression test and cylinder #1 and #2 failed. Complete engine replacement was done as repairs could not be guaranteed. Cost was over $5000.