What's the matter that BMW Brilliance 520li can't supply oil?

BMW Brilliance 520li cannot supply oil. Solution: 1 The gasoline circuit is not smooth. Clean the oil circuit and replace the gasoline filter. Check the oil pump in the mailbox first to see if it works normally. This work is a bit tedious, so it is necessary to remove the back seat, open the oil tank and take out the oil pump for inspection. It may be that there are too many impurities in the oil pump to absorb oil;

2. Secondly, check whether the gasoline grille is in good condition. The gasoline tank is not working, which may also lead to the failure to add oil. And the air intake system is blocked, such as the air filter. Check the air intake system and carry out professional maintenance;

3. Then, see if there is a battery problem. Insufficient battery power may lead to unstable voltage output. The solution is to clean the battery frequently and replenish the electrolyte. Then, the gas distribution phase is wrong, for example, the intake and exhaust valves are not tightly sealed. The solution is to clean the throttle when refueling or add some detergent additives to the fuel.

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