alternator，121615002，01210AA67B，0121615002，0125711017，0125711059，6C1TBC,AC1T10300BA,AC1T10300BB，113958，115499，CAL10307，CAL10307ES，CAL10307OS，for Citroën

The following is the general installation method for the Citroën 12V generator. There may be slight differences between different vehicle models. It is recommended to refer to the vehicle's repair manual during operation:Preparation Work: •  Park the vehicle steadily and turn off the engine: Park the vehicle on a flat and safe ground, pull up the handbrake, turn off the engine, and wait for the engine to cool down to prevent scalding.  •  Disconnect the power supply: Locate the battery, first remove the negative terminal of the battery to cut off the power supply to the entire vehicle, avoiding electric shock or short circuit during operation.  •  Prepare tools: Prepare common tools such as wrenches and sockets.Removing the old generator: Removing the accessory belt: Use an appropriate tool to loosen the belt tensioner and remove the accessory belt from the generator pulley and other related components.Disconnecting the electrical connections: Unplug the connector on the generator and mark it for correct reconnection later.Loosening the generator mounting bolts: Locate the generator mounting bolts, which are usually multiple. Use the corresponding tools to loosen and remove these bolts. Generally speaking, one bolt may need to be tightened to a torque of 49±4N・m, and another bolt to a torque of 41±4N・m. For details, please refer to the vehicle maintenance manual.Taking out the old generator: Carefully remove the old generator from its installation position, taking care not to damage surrounding components or wires.Installing a new generator: •  Clean the mounting surface: Clean the surface where the generator will be installed, removing oil stains, rust, and impurities, etc., to ensure the mounting surface is flat and clean, so that the new generator can be installed stably with good contact.  •  Install the new generator: Align the new generator with the mounting holes, slowly place it into the installation position, and ensure all bolt holes are accurately aligned.  •  Install the fixing bolts: Insert the fixing bolts into the corresponding holes, hand-tighten them a few turns first, then gradually tighten them to the specified torque value using a torque wrench.Connect the electrical circuits: According to the marks made earlier, plug the generator's connector back into its original position to ensure a secure connection.  •  Install the accessory drive belt: Properly install the belt onto the generator pulley and other related pulleys, then adjust the belt tension by adjusting the belt tensioner to give the belt appropriate tightness.Inspection and Testing: •  Reconnect the negative battery terminal: After confirming that all installation steps are correct, reconnect the negative battery cable to the battery and tighten the nut.  •  Start the vehicle: Start the engine and observe whether the charging indicator light on the instrument panel turns off normally. At the same time, use a multimeter to measure the battery voltage, which should normally be between 13.5V-14.5V to ensure that the generator can generate electricity normally.  •  Check the operation: During the operation of the vehicle, pay attention to whether there is any abnormal noise in the engine compartment, and check whether the connecting parts of the generator are loose, overheated, etc.

When installing a Citroën 12V generator, there are the following precautions:Regarding safe operation: •  Ensure power is disconnected: Before removing and installing the generator, be sure to disconnect the negative battery cable first to prevent electric shock or short circuits that could damage electrical equipment. During the operation, you can wear insulating gloves and use insulating tools.  •  Pay attention to vehicle support: If you need to work under the vehicle, use a jack and safety stands to securely support the vehicle to ensure safety and avoid injuries caused by accidental movement of the vehicle.Component Inspection and Selection: •  Inspect the generator's appearance: Before installing a new generator, check for any damage to its appearance, such as cracks in the housing or loose terminals, to ensure the generator is in good condition.  •  Choose the appropriate model: Select a generator that matches the Citroën model, as generators for different models may vary in specifications and performance. Ensure it can properly adapt to the vehicle's electrical system.Regarding installation operations: •  Clean the installation site: The surface of the installation location must be cleaned thoroughly to remove oil stains, rust, and impurities, ensuring that the generator is installed stably with good contact.  •  Pay attention to bolt tightening torque: Use a torque wrench to tighten the fixing bolts according to the torque value specified in the maintenance manual. Over-tightening the bolts may damage the threads or the generator housing, while under-tightening can cause the generator to loosen, resulting in abnormal noise or even falling off.  •  Correctly connect the circuits: When disconnecting and connecting electrical circuits, operate carefully to avoid excessive pulling or bending of the wires. At the same time, clearly understand the markings and functions of each terminal on the generator, and connect them in the correct way. Incorrect connection may damage the generator or related electrical equipment.Precautions for installing the belt: When installing the generator belt, ensure that the belt is correctly installed on each pulley and that the tension is appropriate. If the belt is too loose, it may lead to insufficient power generation, battery depletion, and other issues; if the belt is too tight, it will increase the bearing load torque and shorten the service life of the bearing.  Aspects of inspection after installation: • Check the installation firmness: After installation, recheck whether the fixing bolts of the generator are tightened and whether all connecting components are properly installed to ensure that the generator will not loosen during vehicle operation.Conduct power generation tests: After reconnecting the negative battery cable, start the engine and observe whether the charging indicator light on the dashboard turns off normally. At the same time, use a multimeter to measure the battery voltage, which should normally be between 13.5V and 14.5V to confirm that the generator can generate electricity normally. In addition, after the vehicle has been running for a period of time, you can touch the generator housing to check for overheating. If there is any abnormality, stop the machine in time for inspection.

References：The content you mentioned regarding the installation precautions for the Citroën 12V generator mainly comes from the following aspects: • Automobile repair manuals: Citroën officially formulates detailed repair manuals for each model, which include specific steps for generator installation, technical parameters, and various precautions. This is the most authoritative and accurate source of information. It is compiled in accordance with the vehicle's design and manufacturing standards, ensuring that maintenance personnel and car owners carry out the installation in the correct way to ensure the normal operation of the generator and the vehicle's electrical system.Professional automobile maintenance websites and platforms: Such as professional automotive websites and platforms like Autohome, PCauto, and Auto Master. These platforms have a large number of automobile maintenance technicians and car enthusiasts sharing their practical maintenance experiences and skills, which include matters needing attention during the installation process of Citroën generators. They have accumulated rich experience in long-term maintenance practices, and the shared content is highly practical and reference-worthy.Automobile manufacturer training materials: Automobile manufacturers will provide professional training materials for authorized repair stations and maintenance personnel, which will also cover installation specifications and precautions for components such as generators. This ensures that maintenance personnel can carry out vehicle repair and maintenance work accurately and efficiently. These materials will also be disseminated through the practical application of maintenance personnel in their work.