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How Often Should the BMW 5 Series Alternator Belt Be Replaced?

4 Answers

RebeccaRose

07/25/25 8:12am

The alternator belt of the BMW 5 Series should be replaced every 80,000 kilometers. The alternator belt is one of the main belts in a car, connecting components such as the alternator, air conditioning compressor, power steering pump, idler pulley, tensioner pulley, and crankshaft pulley. The power source for the alternator belt is the crankshaft pulley, with power provided by the rotation of the crankshaft. The BMW 5 Series has a body size of 5106mm in length, 1868mm in width, and 1500mm in height, with a wheelbase of 3105mm and a fuel tank capacity of 68 liters. Its body structure is a 4-door, 5-seat sedan, equipped with a 2.0T turbocharged engine that delivers a maximum power of 135kW and a maximum torque of 290Nm, paired with an 8-speed automatic transmission.

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SamuelRose

08/11/25 1:43pm

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McGabrielle

09/27/25 6:42am

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JaceRose

11/10/25 8:42am

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More Forum Discussions

What causes the door lock of Buick Excelle to jump up and down?

Buick Excelle door lock jumping up and down may be caused by poor lock block actuator or poor line contact. In this case, it is necessary to go to the 4S store for repair or replacement. Composition of central locking system: The full name is central control door lock, which is a car accessory. When using this lock, you can remotely open and lock the door without inserting the key into the keyhole. It consists of a door lock switch, an actuator and a controller. Function of central locking system: It refers to a control device set on the switch of the driver's door, which can simultaneously control the closing and opening of all car doors. Generally, after starting to drive, stepping on the first brake will automatically lock the central lock to prevent people in the car from opening the door by mistake and falling. Many cars now have this design, especially family cars.

Can a Car with Over-Rich Mixture Still Run?

A car with an over-rich mixture can still run. At idle, the engine load decreases, the throttle opening becomes smaller, and the air intake reduces. Causes of an over-rich mixture: Excessively high fuel level; Malfunctioning vacuum economizer; Clogged main air jet; Blocked air filter. The car's mixture is a combination of fuel and air, typically referring to the mixture of gasoline, diesel, and air. Solutions for an over-rich mixture: Check if the fuel level in the float chamber is too high. If the fuel level is normal, inspect whether the choke is open and if the air filter is dirty or blocked. If the fuel level is too high, adjust it. If the fuel level cannot be adjusted to the normal height, check if the needle valve is sealed and if the float is cracked.

Where is the ignition switch of Audi A4L?

Audi A4L ignition switch is located on the left side of the gear lever. For low-end models, insert the key near the steering wheel, while for high-end models, insert the key near the steering wheel or press the ignition switch directly near the gear lever. Traditional ignition: The working process of the mechanical ignition system is driven by the crankshaft to rotate the distributor shaft, and the cam on the distributor shaft rotates, causing the primary contacts of the ignition coil to connect and disconnect, thereby generating high voltage. Electronic ignition: A series of sensors such as engine speed sensor, intake manifold vacuum sensor (engine load sensor), throttle position sensor, and crankshaft position sensor are used to determine the working state of the engine. The required ignition advance angle under this working state is calculated, and ignition is performed accordingly.

What are the differences between manual replacement and machine replacement?

Manual replacement is not as thorough as machine replacement. With manual replacement, there may be residual old oil inside, while machine replacement involves a circulating exchange, resulting in a cleaner change. However, machine replacement requires significantly more oil than manual replacement. Below is some relevant information about transmission fluid: Functions: Transmission fluid serves to clean, lubricate, prevent rust, and dissipate heat. Regularly changing the transmission fluid can clean and lubricate the gear system, extend the lifespan of the transmission components, ensure the transmission operates normally, and make gear shifts smoother and more seamless—perhaps even restoring that new-car feeling. Precautions: If the transmission fluid is not changed for a long time, it can not only affect performance but also cause the fluid's properties to degrade, reducing its lubricating effectiveness. This can accelerate wear on transmission components and increase the likelihood of malfunctions.

What Does 300cc Displacement Mean?

300cc displacement refers to the engine combustion chamber displacement of a motorcycle being 300 milliliters. Here is the relevant introduction: Calculation method: The calculation method for motorcycle displacement: Cylinder cross-sectional area X stroke X number of cylinders = total displacement in cc. Among these, stroke refers to the piston's reciprocating motion within the cylinder. When the piston moves from the top dead center to the bottom dead center, the distance traveled is called the piston stroke, abbreviated as stroke or travel. The relationship between the three: The larger the displacement, the higher the fuel consumption and the greater the horsepower. The smaller the displacement, the lower the fuel consumption and the smaller the horsepower. 1cc = 1 milliliter, where milliliter is a unit of volume, with the main unit of volume being (L). 1 milliliter = 1 cubic centimeter, and 1000 milliliters = 1 liter. 100CC refers to the displacement of a motorcycle, and a 125 motorcycle is a vehicle with a displacement of 125CC.

Can car maintenance be done outside of 4S stores?

Car maintenance can indeed be performed outside of 4S stores. However, it is crucial to have the service done at a qualified and reputable facility, and to ensure that all replaced parts are safe and reliable, as this serves as evidence for potential warranty claims. Regulations on Motor Vehicle Maintenance: These regulations explicitly state that manufacturers and 4S stores cannot refuse warranty services solely because maintenance was not performed at an authorized dealership. In other words, car owners have the freedom to choose their preferred service provider. Except for automakers fulfilling defective vehicle recalls or "three guarantees" (repair, replacement, return) obligations, no entity or individual may force or covertly compel car owners to use specific maintenance providers. Maintenance Considerations: If maintenance is conducted at a legitimate, certified repair shop with proper invoices issued, it becomes difficult for 4S stores to later deny warranty coverage using "lack of authorized maintenance" as an excuse when vehicle malfunctions occur.

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