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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Navigation Head Unit BMW E60 E61 CCC CD Professional System Controller 6974913
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Audi A5 F5 Xenon Headlight Resistor Ballast Relay Module Unit 7PP941572AC
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Audi A1 8X Body Control Module Unit ECU 8X0907063K
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Mercedes S211 W211 Fuse Box Unit Cover Front A2115400082
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Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME CAS 3 + Key 7620987
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Mini Cooper One R55 R56 N12 120HP DME 7573701 Engine Control Unit ECU Automatic
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Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G
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BMW 3 Series E90 E91 E92 M3 Engine Alternator Generator Valeo 180A 7838656
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Audi A3 8V 1.6 TDI DGTE 115 HP Engine ECU Kit Ignition + Key 04L907445G Manual
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Vauxhall Corsa D 1.3 CDTi Alternator Generator Electrical Unit 101210-0961
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Audi A4 B9 2.0 TFSI CVKB Petrol Engine Starter Motor 06L911021A
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Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
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Audi A4 B8 3.2 FSI Alternator Generator 06E903016S
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Alternator Mini Cooper S R52 R53 Petrol W11 Compact Generator 105A 7515030
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Citroen Berlingo 1.6 HDI 9H06 Engine Control Unit ECU EDC 98078859 Manual
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BMW E87 LCI E90 120i 320i Petrol N43 170HP ECU KIT DME 7599881 CAS3 Key Manual
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BMW 1 Series E87 LCI ECU Footwell Light Module BASIS PL2 FRM3R Lear 9230451
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On-Board Screen BMW F10 F11 Central Information Display Monitor 10,25" 9227561
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BMW F10 Footwell Light Control Module ECU Unit FRM3 TEMIC 9250455
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Alternator BMW F30 F32 N57N 330d 430d Diesel Engine Generator 230A Valeo 8509224
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Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC
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Peugeot 207 Negative Battery Terminal Cable Wiring Electrical Cable 9665205380
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Ford Galaxy Mondeo MK4 2.0 TDCi Alternator Bracket Mount Support 4M5Q-10239-CC
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Ford Connect Diesel Engine Wiring Cable Loom Harness 7T1T9H589BD
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BMW E87 Body Control Module Unit L2 ECU 6983305 61356983305
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Mercedes Vito W639 Automatic Gearbox EGS53 Control Unit Module ECU A0009001700
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BMW Z4 E85 E46 Hall Effect Switch Cable Microswitch 8236846
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BMW F20 F21 LCI Wiring Loom Harness Rear Trunk Lid Right O/S 9251725
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Audi A4 B9 Rear Hatch Boot Lid Tailgate Opening Control Module Unit 3G0962243D
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Audi TT 8J Audio Amplifier Radio Lear Sound Unit 8J0035223B
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BMW E60 E63 LCI E65 Light Control Module LCM LM2 LMII E6X LWR
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Positive Battery Cable BMW F30 F31 F80 M3 F82 M4 Plus Pole Power Red 9259425
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Radio Stereo BMW F20 F30 F31 Professional CD DAB Nav Head Unit 9299272
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Mercedes W203 ECU Control Unit Crash Impact Sensor Module Air Module A2038207385
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BMW F30 Rear Bumper PDC Wiring Loom Harness Cables 9224950
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Mercedes W176 Door Harness Loom Cable Wiring Rear Left Right N/O/S A2465407711
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Mercedes W204 C180 Engine Unit BlueEFFICIENCY 271.820 156HP ECU A2711500391
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BMW 3 Series 1 E90 E90N E91 E91N LCI Wiring Loom Set PDC Rear Set Complete
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Mercedes-Benz B-Class W245 180CDI Engine Wiring Harness Loom Cable A6401504033
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A1669056001
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Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
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Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
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BMW E46 Petrol Engine Starter Motor 1,4kW 7505979
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VW Golf 5 V 1K Fuse Box Control Unit Relay Power Distribution Module 1K2941824
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Audi A6 C6 2.0 TDI Alternator Generator 180A 14V 03G903016A
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Audi A3 8V Gateway Control Module Unit ECU 5Q0907530S
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Audi A3 8V 2.0 TDI CRLB Diesel Alternator 03F903023D
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Gateway Module Audi A3 8P Volkswagen Golf Mk6 Control Unit ECU 1K0907530AF
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Mercedes W205 Park Assist PDC Trunk Control Unit Module A0009001808
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Mercedes W212 Fuse Box Rear SAM Relay Control Unit Module A2129003702
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Audi A4 B8 A5 8F 2.0 TDI Diesel Engine Alternator Generator 04L903017D
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9281722
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Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017
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Mini R60 ALL4 N18 184HP Control Unit ECU DME Kit 7613226 + Key + CAS3, Manual
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Audi A7 S7 4G8 A8 D4 4.0 TFSI Starter Motor Denso Petrol Engine 079911024
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Alternator Mercedes R172 SLC 43 AMG Petrol OM276 200A Valeo A0009068806
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Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A1669008506
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BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753
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Mini R50 R53 Body Control Unit Basic Module BCM BC1RD 6976988
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BMW E87 LCI Light Module NSW LCM Footwell Module PL2 FRM II 9166707
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BMW E60 E81 E90 LCI Adapter Cable CIC System 9185171
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BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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Mercedes W221 Antenna Amplifier Control Unit Module A2218208089
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Starter Motor Land Rover Freelander 2 Diesel Engine Actuator LR003468
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BMW MINI Cooper One F55 Cable Harness Door Right O/S Loom Driver Side 9359246
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Mercedes W207 Telematic Communication Control Unit Module A1669005517
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Ford Transit Mk7 Handbrake Wiring Cable Battery Wire Cabling 6C1T-14K076-CC
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Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Volkswagen Passat B7 Central Gateway Control Unit Module Relay ECU 7N0907530AN
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Ford Focus MK2 Mondeo MK4 1.8 TDCI Glow Plug Wiring Loom Cable Wire 4M5Q6M091AB
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Audi Q2 GA Head Unit Navigation Multimedia Control Unit MMI 81A035043
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Mercedes C205 Midline Sound Audio Amplifier Unit A2059000044
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049004306
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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 .