What to Do When a BMW Burns Engine Oil?
2 Answers
BMW burning engine oil is a common issue, and there are many reasons for it. However, given BMW's quality, the likelihood of engine oil burning due to engine quality problems is extremely low. The main causes are the corrosion and aging of valve seals, crankshaft seals, and the seals between the turbocharger and intake duct. Below are the reasons and solutions: 1. Since seals are rubber products, they tend to age over time. Combined with the high temperature and pressure inside the engine, seals age even faster, reducing their sealing ability. This makes it easy for engine oil to seep into the cylinders and participate in combustion. However, if the issue is with the valve seals, the problem is not severe. Blue smoke will only appear during cold starts and disappear once the engine warms up. In this case, it is necessary to visit a professional repair shop or a 4S store to replace the seals with new ones. 2. In addition to replacing the seals, using engine oil with better high-temperature performance and heat dissipation capabilities can provide better heat dissipation and lubrication for the engine internals, helping to prevent premature aging of the seals. Furthermore, all cases of engine oil burning are related to wear and tear, which is natural consumption. Regular and proper maintenance can minimize this consumption.
My BMW also had an oil burning issue before, which took some effort to figure out. The main causes are usually worn piston rings or aging valve stem seals, allowing oil to seep into the combustion chamber and burn. First, check if there's blue smoke from the exhaust pipe – a classic symptom. Then measure oil consumption; the standard is no more than half a liter per 1,000 kilometers. If it exceeds this, head to a professional shop immediately – you might need to replace those seals. BMW's turbo systems often have this problem. Preventive measures are crucial. I insist on using high-quality full synthetic oil, servicing every 5,000 kilometers, and avoiding hard acceleration to reduce engine stress. Otherwise, the repair costs can be hefty.
