What is the problem with the BMW 6 Series China VI B48D missing 1 liter of engine oil per 9000 km?

B48B20D and B48B20B engines, friends who have known BMW will not be unfamiliar. These two engines are new to BMW, and are used in BMW's new 3 Series and 5 Series models. So what's the difference between these two engines?

B48B20D and B48B20B.

The most fundamental difference between the two is domestic and imported. In the code names of these two engines, B stands for imported from Germany, while D stands for domestic production. In other words, the B48B20D engine comes from the BMW Brilliance plant in Shenyang, China.

Secondly, there is also a certain difference in horsepower between the two engines. The domestically produced B48B20D is capable of producing 252 hp, while the imported B48B20B is able to increase the horsepower output to 258 hp, a difference of 6 hp between the two engines.

In terms of power, the maximum output power of the domestic B48B20D is 185 kilowatts, while the imported B48B20D side is 5 kilowatts higher, reaching a maximum output power of 190 kilowatts.

The maximum torque of the B48B20D engine is 350 Nm, while the B4820B engine is 400 Nm.

Which is better and more stable?

In general, imports will be more stable.

To sum up, it is not difficult for us to find that both the output power and the horsepower value of the domestic ones are inferior to the imported engines. Although the technology and structure of the two engines are the same, the manufacturing and assembly technology used in the foreign production line is currently unattainable by the domestic engine, so the assembly technology and process at the time of production will affect the later use, which is why the overall data of the domestic engine is a little lower than that of the imported one. Therefore, based on the above data and analysis, I believe that many car owners will still choose the imported B48B20B engine.

But having said that, although B48B20D is a domestic BMW engine, its parts are imported from abroad and then assembled in China, which has the advantage of reducing the overall ** of the car, and I believe that many people will pay attention to whether the engine is domestic after seeing the BMW logo.

Speaking of this, you may be reminded of a common problem of BMW engines, which is oil leakage. The problem of leaking oil did exist in the previous generation of BMW engines, and the new B48 series engine has been solved by redesigning the valve chamber cover. At present, according to the market response, whether imported or domestically produced B48 series engines have not been subject to complaints similar to oil leakage.

Actually, it's all normal.

German cars also burn engine oil, which is an old problem and an unsolvable contradiction.

It is impossible to achieve perfection without burning engine oil and to achieve high engine output.

Good luck with you.

Let's get used to it.

BMW does have a problem with high oil consumption. 9000 kilometers less than one liter, it stands to reason that it should be within the tolerable range. Just a personal opinion, FYI.

Check whether the turbocharger burns oil, but the BMW car burns engine oil is a bit serious.

How to maintain a second-hand car when you buy it? In addition to the oil and water throughout the car, there are also these aspects.

Hello, second-hand car maintenance is no different from ordinary vehicle maintenance, it is recommended to buy second-hand cars can find a knowledgeable person to help see! You can go to a professional repair shop to do inspection and maintenance, I hope my answer will be helpful to you, hope to adopt!

The maintenance of a second-hand car is the same as the maintenance of a normal car, and it is based on the number of kilometers and time. If you are not sure what the condition of your car is, you can go to the 4S store in advance for an inspection? According to the results of the inspection, I hope my answer can help you.

3.Belt, and water pump when realigningIf you buy a car with more than 70,000 kilometers or a service life of more than 5 years, it is best to replace the engine timing belt, and remember to replace the water pump and its belt together, because early replacement can reduce the wear and tear of the car interior and reduce the cost of car maintenance in the later stage.

Change the oil, three cores, look at the timing belt, look at the brake pads,

Change the oil, the oil filter, the air, the cabin air filter, and look at the brake fluid and brake pads, as well as the tires, and add some if the antifreeze is enough.

If you buy a second-hand car that takes too long, you still have to consider it carefully, and it is also very laborious to buy it back for maintenance, and it costs a lot of money, and the condition of the second-hand car with a long age is relatively poor, and there are many things to replace, whether it is internal parts or external maintenance, it takes a lot of time, and you still need to think more about it if you want to buy it.

It is generally not recommended to buy more than 5 years.

of used cars, especially those that are more than 8 years old. Used cars that are more than 5 years old will become more and more close, and maintenance costs will increase accordingly. If you buy a second-hand car for a long time, it is recommended to ask a professional appraiser to do a big check on the condition of the car, and it is best to do it when you buy it, and then it is necessary to pack up the large items well and eliminate potential safety hazards.

Transfer me to sell my car network) Maintenance 1: Replace all the fluids of the used car.

One of the four checks and maintenance that must be done when buying a new used car, it is best to replace all the fluids in the car. Generally, the original owner basically stops maintaining it from the time he wants to sell it, and besides, the process from the owner's hand to your hand, whether it is through a car dealer or a second-hand car consignment platform, the vehicle must have a certain storage time. Long-term parking will cause the oil, brake fluid, antifreeze, etc. to deteriorate, so after buying a second-hand car, the first thing to do is to see if the various liquids have deteriorated, and whether the three filters need to be cleaned and replaced.

This is the most basic step in car maintenance, and it is also one of the must-do inspections and maintenance for new second-hand cars.

Maintenance 2: Check the engine belt and brake pads.

The second of the four inspections and maintenance that must be done when buying a new second-hand car is to check the use of engine belts and brake pads of the second-hand car. If the engine is a timing belt, it is necessary to check whether its tightness and flexion are appropriate, whether there is wear and tear, and the timing belt needs to be replaced after about 60,000 kilometers, otherwise it will cause damage to the internal valve of the engine, which is more harmful. Brake pads are an important safety component in the automotive braking system.

The thickness of the new brake pad is about the same, and when the thickness of the brake pad is only 1 3 thickness left by the naked eye, it needs to be replaced for safety reasons.

Maintenance 3: Tire use.

The third of the four inspections and maintenance that must be done when buying a new second-hand car is to check the safety of tires. Check whether there are obvious wear and scratches, and if there are obvious scratches, it is best to replace them. Tire pressure, wear and tear, whether the nut is loose or falling off, all need to be checked one by one, after all, the tire bears the weight of the entire vehicle, and is the only part in contact with the ground, a slight damage may become the biggest safety hazard.

Maintenance 4: The condition of the chassis of the used car.

The fourth of the four inspections and maintenance that must be done for newly bought second-hand cars is to check the condition of the chassis of the second-hand car, and check the steering machine, steering rod, ball joint, shock absorber, etc. one by one. If there is deformation, it should be corrected and repaired in time. In addition, if there is any abnormal noise or slight leakage of the chassis, it is recommended to go to the automobile repair center to do a chassis anti-rust care or spray specific paint to avoid serious problems.

"Nowadays, there are more and more second-hand car users, especially to introduce the common sense about second-hand car maintenance.

2. Safety and performance: pay attention to brake clearance adjustment; clutch adjustment; Brake disc (pad) replacement; shock absorbing equipment, tire maintenance or replacement; Circuit oil system detection; light signal adjustment, etc.

3. Key components: check whether the car has the problem of burning oil, oil leakage and air leakage, and repair or replace the connecting parts; Whether the motor is running well and whether the power is sufficient, replenish or replace; Whether the gearbox has abnormal gear noises and unsmooth gear shifting.

4. Daily maintenance: In case of wind and rain, it is often necessary to clean and wax the vehicle many times.

5. Others: Some old cars themselves come with certain ancillary equipment such as audio, modification equipment, etc., which also need daily maintenance and testing.

Old cars, like new ones, are essential to be maintained. Abnormal phenomena such as blue smoke, black smoke, serious engine shaking, air conditioning is not cool, vehicle braking, abnormal steering noise, etc., must be maintained and tested immediately, and do not wait until the vehicle "strikes" to do it. Friends who buy old cars should pay attention to changing the engine oil, replacing the brake pads, and checking the battery power in time to avoid "minor illnesses becoming major problems". "

1. Cleaning and maintenance of fuel system.

Under normal circumstances, the car needs to be cleaned and maintained once every 10,000 to 15,000 kilometers, or when you find that the engine is shaking, sluggish and poor acceleration, black smoke, weak and fuel-efficient. Remove gum and carbon deposits from the inside of the system to prevent harmful corrosion, avoid and stop leaks in seals and tanks, and replace old coolant completely.

2. In-depth maintenance of lubrication system.

The main function of the lubrication system is to effectively lubricate the various parts of the automobile engine to prevent excessive wear. Under normal circumstances, the car needs to be cleaned and maintained once every 5000 10000 kilometers, and it needs to be cleaned and maintained once when the engine noise is too loud, the acceleration is weak, and the water temperature is too high. Clean the sludge and other accumulations inside the engine to avoid oxidation thickening of the oil at high temperature, reduce the wear of engine parts, prolong the life of the engine, and improve the engine power.

3. Cleaning and maintenance of cooling system.

Under normal circumstances, the car should be cleaned and maintained once during the change of seasons in winter and summer, and cleaned and maintained once every 6 8 months during normal driving, or once when the water temperature is too high, leaking, and boiling. Remove traces and limescale that cause engine overheating, prevent harmful corrosion, avoid and stop leaks in seals and water tanks, and replace old coolant completely.

Fourth, the maintenance of the power steering system.

The car needs to be cleaned and maintained once every 40,000 45,000 kilometers, or in case of leakage of the steering difficulty system, after replacing the power steering parts, it must also be cleaned and maintained once.

Remove harmful sludge and paint film from the system, remove steering difficulties at low temperatures, stop and prevent leakage of power steering fluid, remove steering noise, and completely replace old brake steering fluid.

5. Cleaning and maintenance of gearbox.

The car is cleaned and maintained once every 20,000 or 25,000 kilometers, or when the gearbox is slippery, the water temperature is high, the gear shift is slow, and the system leaks. Removes harmful sludge and varnish deposits, restores the elasticity of gaskets and O-rings, smooths transmission shifts, improves power delivery, and completely replaces old automatic transmission fluids.

It is very necessary to go to the 4S store to detect, you can check the condition of the car, which parts have been replaced, better deal with potential hidden dangers, and avoid losses.

4S store is a kind of automobile franchise model with "four-in-one" as the core, including vehicle sales (sale), spare parts (sparepart), after-sales service (service), information feedback (survey), referred to as 4S store. To put it simply, it is equivalent to a store, which is designed by the manufacturer and managed according to the manufacturer's model. At present, domestic joint venture automobile manufacturers have 4S stores all over the country, and these manufacturers directly provide 4S stores with the first vehicle and spare parts, and 4S stores are responsible for sales and after-sales service on behalf of manufacturers, but 4S stores cannot sell cars of other manufacturers' brands.

4S store is a 1998 gradually from Europe into China imported products, because it has established a close production and marketing relationship with various manufacturers, with a beautiful shopping environment, strong brand awareness and other advantages, once imitated by many domestic manufacturers.

4S shop is a collection of car sales, maintenance, accessories and information services as one of the sales stores, an investment of about 25 million yuan to establish a 4S shop in 5-10 years will not lag behind. In China, 4S stores still have a long way to go.

The 4S store model has developed rapidly in China in recent years. The 4S store in the automotive industry is a business model launched by automobile manufacturers in order to meet the needs of customers in terms of service. The core meaning of the 4S store is "car lifetime service solution".

You can check, now many cars are not in the 4S shop maintenance, many are in small shops, buy second-hand cars to check the car version of the maintenance records, unless the right to second-hand car maintenance has been carried out in a fixed 4S shop, otherwise it is impossible to find out accurately. It is recommended to pull the car directly to the repair shop and lift it up for inspection.

You can check it, but if you can't find it if you don't do second-hand car maintenance in the 4S shop, it is recommended to pull the car directly to the repair shop to check it.

Used car "hardware" inspection:

When buying a used car, you should first make sure that the vehicle's various accessories are working properly, such as wipers, reflectors, humidity meters, heaters, defrosters, lamps, turn signals, and air conditioning equipment. Then focus on checking the following items:

1 Paint. Observe the paint for signs of repainting after peeling, and look for excess paint around the exhaust pipes, trim and windows. If the vehicle is refurbished, it can be used as a reference for the old and new vehicle.

2 Degree of damage to the body.

Observe the joints of the car body, if the seams are not straight, the size of the gap is not the same.

1. The lines are bent and the decorative strips have fallen off, which proves that the car has had an accident and has been renovated or overhauled.

3 Degree of corrosion of the body.

Mainly check whether there is rust at the protective plate, windows, sink, bottom plate, and joints. If the rust is severe, it proves that the car is old.

4 The situation of the shock absorber and suspension system.

Press down the corner of the car, and the vehicle should be able to bounce back and jump freely two or three times after relaxing. Failure to do so proves that the shock absorber or suspension system spring is working poorly.

5 Front wheel alignment.

Use a jack to jack up the front wheel, swing the front wheel left and right, up and down by hand, if there is a gap, it means that the bearing and ball head are worn. Observe whether the front wheel is worn unevenly and whether there are cracks on both sides, if the eccentric wear is serious, it proves that the front wheel alignment is not accurate.