BMW 525I Service and Repair From Potomac, MD.

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Check engine light is on.
Engine has a slight vibration.
Engine oil is leaking under vehicle.
Brake pedal vibrates when applied.
Synthetic oil and filter change.

Diagnosis/ Work done:
Tested vehicle, codes P0440(evaporative emission system) and P1129(engine oil  level sensor signal)were present, smoke tested engine and found brake booster hose and fuel tank ventilation valve are leaking, replaced fuel tank vent valve, brake booster hose and oil level sensor.
Engine valve cover was cracked and engine oil leaked inside spark plugs tubes and caused spark plugs to misfire, replaced engine valve cover and spark plugs.
Inspect for engine oil leaks and replaced lower oil pan gasket.
Replaced front brake pads, discs and sensor.
Performed oil and filter change