BYD M6 Owner’s and Service Manual

Thanks for choosing BYD M6. For better operation and service of your vehicle, please read this owner's manual carefully. Powered by an EFI engine, BYD M6 features complicated wiring structure. Do not modify the vehicle or add other electric appliances such as burglar alarm, central door lock, power window regulator, speakers. Faults caused by the unauthorized modification to the vehicle are not covered by BYD warranty. BYD M6 Service Manual,BYD M6 Owner’s Manual,BYD M6 User Manual,BYD M6 Maintenance Manual,BYD M6 workshop Manual,BYD M6 fault codes,BYD M6 wiring diagrams.

Do-It-Yourself Maintenance Precautions
If you perform maintenance yourself, be sure to follow the correct procedure given in this chapter. Improper and incomplete maintenance will both affect the normal operation of the vehicle. Only the basic maintenance you can perform by yourself is described in this chapter. But some maintenance items must be performed by professional technicians with special service tools.

During operation, you must take due care to prevent accidental injury. Please strictly follow these precautions:

• When the engine is running, keep hands, clothing and tools away from the moving fan and engine drive belts. (Don’t wear rings, watch or necktie when performing maintenance.)
• Many parts of the vehicle, such as engine, radiator, exhaust manifold and spark plug cover, are very hot after driving. Be careful not to touch the hot parts. The engine oil and other fluids may also be very hot.
• When the engine is hot, don’t remove the radiator cover or loosen the drain plug to avoid burning injury.
• To prevent fire, keep spark or flame away from the fuel or battery.
• Handle the battery with extreme care. The battery contains toxic and corrosive sulfuric acid.
• Never get under the vehicle when it is supported by the jack alone. If you have to do so, always support the vehicle with solid support.

Engine Oil Consumption
Engine oil function: The primary function of the engine oil is to lubricate and cool moving parts of the engine, so as to keep the engine running normally.

BYD M6 Engine Oil Consumption
Oil consumption is expected in all engines. Under normal conditions, oil consumption can be attributed to the following reasons:

1. Engine oil is used to lubricate the cylinder, piston and position ring. When the piston moves downward in the cylinder, a thin oil film will form on the cylinder wall. When the vehicle is decelerating, high negative pressure generated in the engine will suck some oil into the combustion chamber. This oil as well as part of the oil film left on the cylinder wall is burned during the high temperature combustion process.
2. Engine oil is also used to lubricate the intake valve stems. Some of this oil is sucked into the combustion chamber together with the intake air and is burned along with the fuel. High temperature exhaust gases also burn the oil used to lubricate the exhaust valve stems.

The amount of engine oil consumed depends on the viscosity and quality of the oil and the conditions under which you are driving. Oil consumption will be more during high speed driving and frequent acceleration and deceleration. A new engine consumes more oil, and proper running-in process is necessary to seat the mating surface of the pistons, piston rings and cylinder walls.

When judging the amount of oil consumption, note that the oil may become diluted and make it difficult to judge the true level accurately. For example, if a vehicle is used for repeated short trips, and consumes a normal amount of oil, the dipstick may not show any drop in oil level at all, even after 1000km or more.

This is because the oil is gradually diluted by fuel or moisture, making it appears that the oil level has not changed. The diluting ingredients will evaporate in high speed driving, such as on an expressway. That is why sometimes you will find out the oil is excessively consumed after driving at high speed.