Does the 2011 BMW 535 have serious oil burning issues?
2 Answers
2011 BMW 535 does not have serious oil burning issues, and it is not a quality problem of the BMW itself. The source of oil burning in BMW engines: The main reason for oil burning in BMW engines is the aging of the throttle pedal, and the loose sealing of the valve oil seal, which causes engine oil to leak into the valve area and directly enter the cylinder for combustion. However, unlike gasoline, engine oil cannot be completely burned. Long-term burning of engine oil will cause carbon deposits on the top of the piston. Carbon deposits can lead to severe wear of the piston and cylinder walls, resulting in unclean oil drainage by the piston rings and more serious oil burning. Methods to determine if a car has serious oil burning issues: Check if the carbon deposits inside the exhaust pipe are severe; check if there are oil stains around the fuel filler port; smell the exhaust gas—if it is pungent, there is a possibility of oil burning; press the throttle pedal and check if there is blue smoke in the exhaust gas; check the 4S shop records for maintenance records related to controlling oil burning.
I've been driving a 2011 BMW 535 with the N55 inline-six turbocharged engine for several years. Honestly, oil consumption is quite common—my car burns about half a liter every 5,000 kilometers on average. If you frequently floor the throttle or cruise at high speeds, the oil consumption becomes more noticeable. I regularly check the oil level and use full synthetic oil at every service to minimize oil loss. BMW states that consuming 0.7 liters per 1,000 kilometers is normal, but I recommend new owners get into the habit of checking the dipstick weekly. If the oil warning light comes on or you notice blue smoke from the exhaust, it indicates internal engine issues—take it to a repair shop immediately. Don’t wait until the oil level triggers a warning, as that can damage the engine and cost you more in the long run.
