|
Type :
|
Enginestarter
|
|
Specification :
|
12V 1.4KW
|
|
Number of feet :
|
13T
|
|
Brand :
|
NUO JIN
|
|
Number :
|
0001179520 000117952
|
|
Quality :
|
Renovate
|
|
Delivery time :
|
10 days
|
The Mercedes-Benz 12V 1.4KW starter is mainly compatible with classic Mercedes-Benz models such as the 200, 220, and 300 series (e.g., W115, W108 generations). Its installation follows the universal logic for automotive starter installation while requiring alignment with the structural characteristics of older Mercedes-Benz models. Below are the detailed installation methods and corresponding precautions:
Prepare box-end wrenches, socket wrenches (common sizes such as 8mm and 10mm), short extension bars, torque wrenches, jacks, and jack stands. Verify that the model of the new starter is compatible with the vehicle, and inspect the 12V 1.4KW starter for no external damage and complete components (e.g., brushes, gears).
Disconnect the negative terminal of the battery to avoid short circuits. Park the vehicle on a level surface, lift it with a jack, and secure it with jack stands to ensure sufficient operating space. Meanwhile, clean dust and oil stains around the installation area to maintain a dry and clean environment.
This Mercedes-Benz starter is typically installed at the junction of the engine and transmission. First, clean dirt and rust from this location; if residual oil remains, wipe it with a general-purpose cleaner and dry thoroughly to ensure a flat installation surface.
Place the new starter in the installation position, align it with the bolt holes, and gently screw in two fixing bolts to secure it initially, preventing displacement during installation.
Use a torque wrench to tighten the starter fixing bolts to a specified torque of 37N·m. Apply moderate force to avoid damaging the mounting seat due to over-tightening or causing vibration during operation due to under-tightening.
First, connect the positive power cable of the starter, then mate the control wiring harness. Pay close attention to distinguishing wiring interfaces to prevent incorrect connections. Next, connect Terminal 30 with a nut, controlling the torque to 9.8N·m. If the vehicle is equipped with a wiring harness bracket, fix it with bolts at a torque of 8.4N·m, then install wiring harness clips to secure the lines and prevent entanglement.
If components such as the engine shield were removed prior to installation, reinstall them one by one in their original positions and tighten the bolts. Then remove the jack stands and lower the vehicle slowly.
Reconnect the negative terminal of the battery. First perform a 12V no-load test to check if the starter operates smoothly without abnormal noise. Then start the engine to verify if the starter can smoothly drive the engine to start. If the startup is normal, the installation is complete.
Based on the provided installation content for the Mercedes-Benz 12V 1.4KW starter, the model-specific precautions are summarized below. Universal key precautions are also supplemented to ensure installation and operational safety, as detailed follows:
For the older Mercedes-Benz models compatible with this starter, some fixing bolts are located in concealed positions and are prone to rust. If a bolt is difficult to loosen, soak the bolt head with penetrating oil first to soften the rust, and perform the operation after a period of time. Never loosen bolts violently to prevent bolt breakage or damage to surrounding components.
Disconnect the negative terminal of the battery throughout the entire operation, and reconnect it only before testing after installation is complete. This avoids short circuits during wiring that could damage electronic components. When connecting wires, strictly distinguish between positive/negative terminals and wiring interfaces to prevent incorrect connections that may cause malfunctions.
When cleaning the starter's armature and field windings, only use gasoline-wrung cotton yarn for wiping or compressed air for blowing—never use liquid cleaning agents. Otherwise, internal short circuits may occur, affecting the normal output of the 1.4KW power.
If components fit too tightly during installation, never strike or force them. Use pulling/pressing tools for auxiliary assembly to avoid damaging the starter's gears and body, which could lead to abnormal startup.
Protect the starter's surface and internal structure during installation to prevent collisions and scratches. Simultaneously, avoid oil stains, dust, and other impurities entering the gaps of internal components, as this may affect operational precision.
When tightening the starter's fixing bolts, strictly follow the specified torque of 37N·m. The torque for the nut connecting Terminal 30 should be controlled at 9.8N·m, and the torque for the wiring harness bracket fixing bolts should be approximately 8.4N·m. Under-tightening will cause vibration during operation, while over-tightening may damage the mounting seat or bolts.
During pre-installation positioning, first gently screw in two fixing bolts to stabilize the position. This prevents the starter from shifting during subsequent wiring or adjustments, which could affect wiring alignment and assembly precision.
During testing, first perform a 12V no-load test. After confirming the starter operates smoothly without abnormal noise, proceed to start the engine for testing. If issues such as abnormal noise or weak startup occur, immediately cut off the power and inspect the wiring connections or gear meshing.
Monitor the starter's working condition in the short term after installation. If frequent startup failures occur, promptly check component compatibility or installation precision to avoid minor faults escalating and affecting the engine's starting system.
References：
The previously provided precautions regarding the installation of the Mercedes-Benz 12V 1.4KW starter are not derived from a single exclusive Mercedes-Benz official manual or authoritative document. Instead, they are compiled by integrating universal specifications from automotive maintenance platforms and maintenance experience specific to Mercedes-Benz models. Detailed information about their sources is as follows:
Precision parameters such as the 37N·m torque for fixing bolts, 9.8N·m for Terminal 30 connections, and 8.4N·m for wiring harness brackets—along with precautions including the prohibition of liquid cleaning agents for armature cleaning and the ban on striking or forcing tightly fitted components—are highly consistent with universal starter installation and maintenance content published on platforms like Autohome (
qichezhijia.com) and PCauto (
pcauto.com.cn). For example:
PCauto explicitly specifies that cleaning starter-related components requires gasoline-wrung cotton yarn.
Autohome’s starter replacement tutorials also mark the same tightening torque standards.
These are industry-universal maintenance precautions widely adopted across various vehicle models.
Precautions tailored to older Mercedes-Benz models (e.g., W115, W108 series)—such as concealed and rust-prone bolts requiring penetration oil soaking—are referenced from maintenance experience with vintage Mercedes-Benz vehicles. For instance:
Overseas starter disassembly/assembly documents for Mercedes-Benz models like the W202 and W123 include similar requirements, such as disconnecting the battery’s negative terminal before disassembly/installation and prohibiting violent operation on rusted bolts.
Such model-specific maintenance experience is integrated with universal specifications to form special precautions adapted for this Mercedes-Benz starter.
Precautions such as disconnecting the battery’s negative terminal before installation and performing a no-load test after installation are mentioned in universal starter replacement processes on platforms like PCauto. These are routine safety and performance guarantees for starter installation, serving as key reference bases during content compilation.
Related Articles
Discover what vehicles use auto starter systems and how Auto Starter car technology improves safety, convenience, and performance. Learn about manufacturer production, factory supply, and modern applications for cars, trucks, and commercial vehicles.....
Looking for a complete Auto Starter guide? This article explains how auto starters work, types, symptoms, maintenance tips, and how manufacturers and factories supply high-quality starters for global production and bulk orders.....
Learn everything about starter parts, how they work, signs of failure, maintenance tips, and how a professional manufacturer with factory production ensures stable, high-quality starter components for global vehicle owners.....
Explore the real-world Auto Starter disadvantages in industrial and automotive production. Learn how auto starter systems affect reliability, cost, maintenance, and factory manufacturing efficiency.....
Discover what a starter solenoid does in a vehicle, how it works with the starter motor, signs of failure, and why quality starter solenoid production from a professional manufacturer and factory matters for reliable performance.....
Explore common Boat Starter types and learn which marine engines they fit best. As a professional Boat Starter manufacturer with factory production and bulk supply capability, we provide reliable starting solutions for outboard, inboard, and diesel marine engin....
