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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Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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IBS Cable BMW E93 Negative Battery Lead Wiring Harness Control Unit 7587465
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Head Unit BMW F20 F30 LCI F36 CD Player DAB Radio Sat Nav Navigation 6825837
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Audi A3 8P Side Air Module Control Unit ECU 8P0959655N
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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual
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Mercedes W447 Fuse Box Module Cover Trim Trunk A4475460064
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Audi A5 8T Head Unit Radio Player Navigation Control Module 4G0035061H
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BMW X3 E83 Radio Navigation System CID Control Unit CD Player 9118823
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Control Unit BMW F01 F10 F20 F21 F30 F87 Integrated Supply Module Unit 7591534
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 8780776
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BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Electronic Unit FEM 8733499
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Control Unit BMW F10 F30 F31 330d 530d Diesel N57N Engine ECU DDE 8582802
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BMW X3 M F97 X4 M F98 S58 Actuator Drive Exhaust Flap Motor 8746829
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Rain Sensor Mercedes W204 Light Solar Condensation Control Unit A2048208185
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Alternator Volkswagen Crafter 2.0 TDI Engine Alternator 120A Bosch 028903028E
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Fuse Box Mercedes W205 W213 GLC X253 Hybrid Power Distribution Unit A2135401115
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BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6976154
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Audi A3 8P Body Control Module Unit 8P0907063G
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VW Golf 5 Body Control Comfort Unit Module BCM Convenience Unit ECU 1K0959433BT
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Alternator Bracket Mount 117105124R
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Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
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Mini R55 R56 R57 LCI R60 R61 Navigation Head Unit CHAMP 2 Sat Nav DAB 9311113
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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Mini Cooper D R60 R61 ALL4 N47N 2.0 143HP Engine ECU Kit DDE 8583423 CAS3 Key
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BMW Mini R50 One 1.6i Petrol Engine Control Unit DME Manual 7520019 7526780
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Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7343935
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BMW 1 E87 Footwell ECU Light Control Module MAX Kuester FRM3R PL2 9390483
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BMW X3 Series E83 Rear Bumper Wiring Loom PDC Harness Towing Hitch Hook
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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BMW E60 530i E90 330i N52 258HP Engine Control Unit ECU DME 7561684 Automatic
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Mercedes W164 M113 Petrol Engine Starter Motor A0061510601
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Mini Cooper D R55 R56 LCI R60 N47N Engine ECU Kit DDE 8516739 CAS3 Key Manual
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Skoda Octavia 5E Front Door Control Module Unit Driver's Side 5Q4959393B
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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BMW X5 X6 3 4 Series E70 F15 F16 F30 F31 F32 Cigarette Lighter Socket 6977679
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Mercedes W177 W247 Battery Fuse Box Positive Distribution Terminal A2479061803
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Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Mini R50 Petrol W10 Engine Wiring Loom Harness Automatic Gearbox 7520936
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Mercedes ML W164 Passenger Side Control Unit Module Fuse Box SAM A1649004101
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Fuse Box BMW F40 Mini F55 F56 Power Distribution Junction Relay Unit 9270356
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Mercedes Sprinter W906 SAM Module Fuse Box Relay Control Unit A9069006701
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BMW X1 E81 E84 E87 E90 E91 Parking Control Module Unit PDC 6982386
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Mini Cooper Cabrio R52 Convertible Folding Roof Module ECU 6960792
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BMW E46 E60 E61 E65 E83 E53 M57N Engine Starter Motor 63223537
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BMW X1 Series E84 20i N20 184HP ECU Engine Kit DME 8610678 CAS3 + Key Manual
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Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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BMW F20 F21 F22 F30 F31 F32 Mini F55 F56 F57 Head Unit Basic Media DAB 8794297
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Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651
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BMW 3 4 Series F30 F31 F32 Front Bumper PDC Wiring Cable Loom Set 9260019
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Volkswagen Golf CD1 Alternator Engine Generator Valeo 05E903018G
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BMW E63 E64 LCI Driver's Seat Occupancy Sensor Mat Control Unit Module 9126457
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BMW E88 Body Control Comfort Unit Module BCM Unit ECU 9305738
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Mini One R55 R56 N12 1.4 95HP Petrol ECU Kit DME 7640005 CAS3 + Key Manual
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BMW E60 E61 E63 E64 Power Distribution Fuse Relay Box Rear 6906588
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Audi A3 8V Air Module Control Unit SRS System ECU 5Q0959655A
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BMW E60 E81 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 6943834
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Ford Transit Mk8 2.2 TDCI Alternator Generator CC1T-10300-CD
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Mercedes SLK R172 Rear SAM Fuse Relay Box Control Unit Module A1729060205
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Audi Q5 FY Gateway Control Module Unit ECU 8W5907468F
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Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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Amplifier BMW F30 F31 F32 Top Hifi Audio Sound Amplifier Harman Kardon 9366164
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Audi A7 4G Q7 4L 3.0 TDI Glow Plug Pre Heat 651 Relay Unit 9 Pins 4L0907282A
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BMW F31 X5 F15 Mini F60 Electric Tailgate Bootlid Control Unit Module 9852926
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Peugeot Partner B9 Alternator Generator VALEO 9810525380
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Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630
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Alternator Mini R55 R56 R57 R57 R58 LCI Generator Petrol 7574365
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BMW Z4 E60 E61 E63 E85 Air Module Control Unit Module ECU 9160557
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Mercedes W209 Convertible Roof Module Folding Top Control Unit ECU A2098205026
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BMW E46 E83 Basic Body Control Unit Module GM5 Star12 9161931
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS
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Tailgate Smart BMW F10 F30 F34 Mini F54 F60 Opener Control Unit Module 7491439
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BMW G26 Reverse Rear View Camera 5A7F553
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Mercedes Vito W639 Airbag SRS Module Control Unit ECU Air Bag A0009010201
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Gearbox Module Mercedes W205 W213 GLC X253 Control ECU Automatic A2139006227
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VW Volkswagen Golf 6 Gateway Control Unit Module ECU 1K0907530AD
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Navigation Head Unit BMW E60 E61 CCC CD Sat Nav Player System Controller 9191554
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Chrysler Grand Voyager Diesel Engine 2.8 CRD Starter Motor 04801516AA
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Mini R55 R56 R57 R59 R60 JCW Engine Starter Motor Actuator 7589354
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Mini Cooper D R60 ALL4 N47N Diesel Engine ECU Kit DDE 8506666 CAS3 Key Manual
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM II Lear 9147387
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Audi A5 8T Sound System Audio Amplifier Amp Unit Bang & Olufsen 8T0035223M
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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BMW F31 Body Control Unit Module HKFM 7388490 0066245503 F005V01610
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Battery Cable BMW F20 F21 F22 Red Positive Plus Pole Blow Off 9253111
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BMW F10 F30 330d 530d 258HP Engine Control Unit N57N ECU DDE 8577835 Automatic
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Part no. 8517874-1
BMW 1 Series F20 F21 116d N47N 116HP ECU Kit DDE 8517874 + Key + FEM Manual
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Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840
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BMW F07 GT F10 F11 535d F13 640d LCI N57Z 313HP Engine ECU DDE 8586536 Automatic
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Mercedes W251 R 320 CDI 642.950 224HP Engine ECU Kit A6421506434 Keys Lock
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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 .