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Type :
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starter
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Specification :
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12V 1.1KW
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Number of feet :
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9PK
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Brand :
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NUOJIN
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Number :
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0001107020
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Quality :
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Remanufacture
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Delivery time :
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10 day
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Most models under Audi and Volkswagen equipped with the 12V 1.1KW starter are small-displacement family cars. The installation process balances universality and the assembly characteristics of these brand models, requiring compliance with electrical safety standards and precise torque requirements. Below is the detailed installation method:
Prepare a 12mm box-end wrench, 10mm wrench, Phillips screwdriver, small socket wrench with short extension bar and 8mm socket, torque wrench, as well as parts cleaner, high-temperature resistant grease, and a brush. If the starter end cover requires sealing, prepare a matching gasket. Additionally, pre-install a fender cover set to avoid scratching the paint during operation.
First, turn off the ignition switch, remove the key, and disconnect the vehicle's negative battery terminal to eliminate the risk of short circuits damaging components.
Verify that the new starter model is 12V 1.1KW and compatible with the corresponding Audi/VW model.
Inspect the starter's core components (gear, armature, carbon brushes, etc.) for missing teeth, wear, or jamming.
Clean the starter mounting surface and surrounding areas with a cleaner to remove oil and dust. Simultaneously, check the flywheel ring gear for severe wear—replace the ring gear first if necessary before installing the starter.
If the starter's internal components were disassembled, complete the internal assembly first:
Reinstall the armature, magnetic poles, brush holder, and other components. Pull up the carbon brush springs, insert the carbon brushes, and secure them firmly.
Apply high-temperature resistant grease to the bushings, helical splines, and other parts in the transmission case to ensure smooth operation.
Install the drive fork pin and return spring, then fix the intermediate bearing support plate and washers to ensure flexible movement of transmission components.
Place the assembled starter steadily on the corresponding mounting position of the engine, aligning it with the mounting holes.
Hand-tighten the two fixing bolts for preliminary positioning.
Use a torque wrench to tighten the bolts to 37N·m to avoid bolt skew, thread damage, or uneven force on the mounting surface.
First, connect the power plug to the corresponding starter interface.
Connect the nut to terminal 30 and tighten it to 9.8N·m to prevent loose connections causing overheating.
Connect the copper connecting plate between the switch and the field coil terminal, and secure the solenoid switch-related circuits to ensure good contact.
Route wires away from high-temperature engine areas. Replace any aging or damaged wires promptly.
Install the wire harness bracket and tighten the fixing bolts to 8.4N·m. Then install two wire harness clips to secure the wires.
If the starter is equipped with a dust cover, install it properly to prevent dust from entering and wearing internal components.
Finally, close the terminal cover, reinstall the relay box, and tighten the fixing screws.
Reconnect the negative battery terminal. After confirming no wires are tangled or interfering, briefly energize the starter for a no-load test.
Observe:
Smooth meshing between the starter gear and flywheel ring gear without abnormal noise.
Stable starter operation speed, good carbon brush contact, and clear, smooth engagement of the solenoid switch.
Reinspect the tightness of the starter fixing bolts and wire harness bracket bolts.
Rotate the engine crankshaft to confirm the starter gear retracts normally.
Check that the starter does not rub against or interfere with surrounding pipelines or wire harnesses, ensuring the overall installation meets operational requirements.
The negative terminal of the storage battery must be disconnected throughout the entire installation process. Live operation (such as directly plugging/unplugging wire connectors or touching terminals) is strictly prohibited, as it may cause short circuits that burn out the starter coil, solenoid switch, or the vehicle's Electronic Control Unit (ECU). Before reconnecting the power supply, ensure all wire interfaces are clean and free of oxidation, terminal connections are tight, insulation layers are intact, and grounding points are securely connected.
Clearly distinguish between the starter's core terminals: Terminal 30 (permanent power input), Terminal 50 (control signal input), and the field coil terminal. Incorrect connection, reverse connection, or short - circuiting of these terminals is strictly forbidden. When tightening the terminal nuts, the torque must be strictly controlled at 9.8N·m. Excessive torque can easily damage the terminal threads or wire insulation layers, while insufficient torque will lead to excessive contact resistance, overheating, and ablation, and may even pose a fire hazard.
Wire routing must keep a safe distance from high - temperature engine components such as the exhaust pipe and cylinder head (with a minimum distance of no less than 8cm) and stay away from moving parts like belts and fans to prevent wire aging, wear, or getting tangled. The wire harnesses of some Audi and Volkswagen models are equipped with special clips and brackets, which must be fixed in the original factory positions. Randomly winding the wire harnesses or altering their routing is not allowed, as this may affect the stability of the vehicle's electronic system.
The starter model must be fully compatible with the corresponding small - displacement family car models of Audi and Volkswagen. Verify key parameters including rated voltage (12V), power (1.1KW), mounting hole spacing, gear module/tooth count, and interface specifications. Mixing starters of different power levels or brands is strictly prohibited; otherwise, it may result in failure of gear meshing, poor fit of the mounting surface, or damage to the vehicle's on - board circuits.
Focus on inspecting the core components before installation: ① The starter gear must be free of chipped teeth, and the tooth wear should not exceed 1/4 of the original thickness, with no jamming in the helical splines; ② The armature should rotate flexibly without eccentric wobble or abnormal noise, the wear of the carbon brushes should not exceed 1/2 of their original length, and the brush springs should have good elasticity; ③ The solenoid switch should engage and disengage smoothly without jamming. Meanwhile, inspect the flywheel ring gear. If there is tooth deformation, chipped teeth, or severe wear on the ring gear, replace it before installing the starter.
Clean the starter's mounting surface and the engine's mating surface to remove oil stains, dust, and metal debris, ensuring a tight fit. If there is a gasket on the mounting surface, check that it is not aged or cracked. Replace it with a gasket of original factory specifications if necessary to prevent engine oil leakage from contaminating the inside of the starter or affecting heat dissipation.
References：
The precautions for installing the Audi/VW 12V 1.1KW starter you previously obtained are not derived from the original official maintenance manuals of Audi or Volkswagen, nor from any specific authoritative publication. Instead, they are a comprehensive summary integrated with the characteristics of these two brands' models, general starter installation specifications, and practical experience in the automotive repair field. The specific reference bases can be categorized as follows:
Many of the basic precautions are highly consistent with the universal requirements for starter installation in the automotive industry. For example:
Requirements such as disconnecting the negative battery terminal throughout the installation to prevent short circuits, prohibiting striking the starter with tools like hammers to avoid damaging internal components, and tightening bolts diagonally to the specified torque are similarly stated in the starter replacement precautions published on Autohome.
Key points such as controlling the single operation time during power-on testing to prevent the starter from overheating and burning out align with the correct starter installation logic shared by PCauto.
These are fundamental industry common sense to ensure the stable operation of the starter after installation.
The details in the content adapted to Audi and VW models are consistent with the maintenance characteristics of these brands:
For instance, precautions such as avoiding coolant pipes, crankshaft position sensors, and other components in the engine bay during installation, as well as the need for diagnostic instrument matching for models with start-stop functionality after installation, are consistent with the core requirements for starter replacement (e.g., emphasizing wiring standards and no-load testing) specified in the manuals of some Audi models.
Additionally, tips such as removing small components first for easier installation due to the compact engine bay layout are tailored to the design features of Audi and VW family cars, representing practical optimization points for such models.
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