Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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Ford Mondeo Mk4 Fuse Box Body Control Module BCM Unit 2.2 TDCi 7G9T-14A073-YC
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Alternator Mercedes W176 C117 X156 X117 Petrol Engine Generator A0009060803
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Door Module Mercedes GLC X253 Front Door Left Control Module A2059000328
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Audi A3 8V Door Wiring Harness Loom Rear Left N/S 8V5971687K
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Mercedes A238 SAM Control Module Unit ECU A2139008123
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BMW E92 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Citroen Berlingo B9 1.6 HDI 9HT Engine Control Unit ECU EDC 9664843780 Manual
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Ford Transit Connect 1.8 Diesel Engine Control ECU Module Manual 4S4112A650BC
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BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9348362
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Volkswagen Golf Mk5 Rain Sensor Front Windscreen Control Unit Module 1K0955559AH
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Mercedes X253 Front Bumper Parking Sensor Wiring Loom Cable Harness A2535402400
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Mercedes W204 W176 W212 Tyre Pressure Monitor Control Unit Module A0009008402
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BMW 3 X1 Series E84 E91 E91N LCI Control Unit Sliding Lifting Roof 6955927
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BMW E81 Footwell Light Module LOW PL2 FRM II 61359175649 9175649
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Mercedes R171 W203 W211 Phone Adapter Contact Plate Holder Telephone A2038201411
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Ford Transit Custom 2.2 TDCi Diesel Starter Motor WaiGlobal 12V 33243N
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Mercedes W204 SAM Module Fuse Box Relay Control Unit A2129008007
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Volkswagen Golf VII R 2.0TSI CJXC 300HP Engine Control ECU Kit 06K907425B Manual
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BMW 3 Series E93 Negative Battery Lead Cable 7599959
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Engine Wiring Mercedes W204 OM651 Diesel Harness Loom DDE A6511503233
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BMW 5 6 E60 LCI E63 Radio CHAMP Business CD Player System Controller 9192680
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BMW M3 F80 LCI VDC Controler Adaptive M Suspension Mode Control Module 6881597
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Audi Q7 4L Head Unit Radio Player Navigation Control Module Alpine 4L2035670J
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Mercedes S204 Estate SAM Module Fuse Box Relay Control Unit A2129005812
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BMW Z4 Series E85 Battery Lead Positive Cable Plus Pole 6935667
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BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9292948
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Seat Ibiza Mk5 Air Module Control Unit 5QF959655BT
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Mercedes W205 Front Air Module SRS Control Unit ECU A2059009427
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Land Rover Discovery Sport L550 Positive Battery Wire Cable Loom HK7214A280AC
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PDC Wiring Mercedes W169 W245 Front Bumper Parking Sensor Loom Cable A1695403733
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BMW X5 Series E70 ECU Body Control Module Junction Box High PL4 JBBFEII 9172364
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BMW F10 F20 F30 Mini F55 F56 KaFAS Camera Front Control Unit Module ECU 6992830
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Ignition Harness BMW F10 F12 F07 GT Petrol N63 Engine Ignition Wiring 7614896
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Control Unit BMW F07 F10 F11 F12 F13 F25 Air Module ECU Unit Continental 9385025
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Audi Q3 8U 2.0 TDI 140HP CFFB Quattro Engine Control Unit ECU 03L906018CN Manual
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Fuel Pump Control Audi A4 B9 A5 F5 A6 C8 Pump Unit Module ECU 4K0906121C
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Starter Motor AUDI Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter 059911024K
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BMW E87 E90 E91 120i 320i N46 Engine Control Unit ECU DME 7565300 Manual
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Distance Radar Module Mercedes W177 W205 W253 Front Distronic Unit A0009053011
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Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relays Set A0009821923
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Audi A3 8L BOSE Sound Amplifier Unit Module Control ECU 8L0035223
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BMW 1 Series E87 ECU Body Control Module H2 Junction Box PL2 JBBFE II 9187539
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Mercedes W169 A180 266.940 Engine Control ECU Kit A2669000200 Key Lock Automatic
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Battery Cable BMW E36 E46 M43 M57 Starter Alternator Wiring Harness 1722094
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BMW F07 GT Self-Levelling Suspension Control Unit Module Bracket Holder 6792443
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Peugeot 207 Partner 1.6 HDI Alternator Generator Support Bracket 9684613880
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Gateway Module Mercedes W211 Control Unit ECU A2115408545
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Mercedes W169 Fuse Box Cover Trim Panel A1695450003
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Mercedes W204 C250CDI 204HP OM651.911 Engine ECU Kit A6519005301 Automatic
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Mini R60 ALL4 N18 184HP Control Unit ECU DME Kit 7613226 + Key + CAS3, Manual
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Audi A3 8P Body Control Comfort Unit Module BCM Unit ECU 8P0907063N
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Volkswagen VW Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024A
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BMW X3 E83 LCI Light Control Module Lear LM II LWR 3449688 61353449688
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BMW E60 LCI E90 M57N2 325d 525d 197HP ECU Kit DME CAS3 + Key 7809941 Automatic
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MercedesW213 Rear Tailgate Boot Control Module Unit A2139052109
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Peugeot 308 Citroen Berlingo Negative Battery Terminal Cable Wiring 9661191580
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Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G
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Mercedes Vito W639 111 CDI 646.982 109HP Engine ECU Kit A6461532891 Key Lock
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Earth Ground Cable Mercedes Vito W447 Positive Battery Lead Wiring A4475401755
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Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .