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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Part no. 93461046
Opel Vivaro A Renault Trafic MK3 1.6 dCi Engine Alternator 185A 93461046
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VW Volkswagen Golf 1K 5D Front Door Wiring Loom Harness Left N/S 1K0971121CN
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Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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BMW 3 Series E90 E91 E92 AUX USB Lead Cable Wire 61129202724 9202724
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Land Rover Range L322 3.0d M57 Engine Wiring Loom Harness Automatic 7788409
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801A
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BMW 3 X5 Series E46 E53 3.0d Diesel M57 Alternator Generator 150A 2248296
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BMW 5 6 7 E60 E61 E63 E64 E65 PDC Parking Control Module Unit ECU 6922785
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Ford Transit Mk8 Bluetooth Module Unit Control ECU LR3T-14G087-VJ
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BMW Mini Cooper F54 F55 F56 F60 HSD Line HU - CID 9314635
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Air Module Mercedes ML W166 Interior Safety SRS Control Module A1669001311
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Battery Cable BMW X5 F15 X6 F16 Positive Plus Pole Distribution Wiring 9322056
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Mercedes W209 Radio Head Unit Media Player Navigation Screen A2098205489
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Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
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Citroen C4 1.6 HDI Diesel Engine Control Unit ECU Module EDC 9665674480
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Mercedes-Benz A W168 CDI Battery Terminal Positive Cable Wiring A1685401130
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Audi A7 4G8 Tailgate Lift Boot Lid Control Unit Module Trunk 4G8959107Q
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4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
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Blind Spot Sensor BMW F40 G20 G21 G30 G31 Radar Range Module SRR-01 Rear 7915643
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Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779003806
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Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
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Mini F56 F60 BMW F40 F39 Diesel B37 Battery Starter Alternator Wiring 8580059
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Mini R55 R56 R57 Halogen Headlights Control Unit Module ECE 0420295
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Airbag Module Peugeot 307 Control Unit ECU Car Safety Sensor 9650109480
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Audi Q5 FY 2.0 TFSI DAXB 252HP Quattro Engine ECU Kit Gateway + Key 06L907425C
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Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman Becker 8E5035223D
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Mercedes W205 Control Unit Power Distribution Box Electrical A0009060086
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BMW E38 Basic Body Control Unit Module General Junction Box ECU GM III 8378633
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BMW E39 E46 E53 E83 Control Unit EWS IV 9127086
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PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623
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Mercedes W447 Fan Control Relay Control Module Unit A6229000400
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Part no. 3457526
Mini Countryman R60 Light Module Footwell Module PL3 FRM3R Lear ECU 3457526
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Parking Sensor Wiring Mercedes W177 W247 Rear Bumper PDC Loom Cable A1775405710
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Mercedes W204 W207 Centre Console Connector AUX USB Port Socket Trim A2078210411
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Mercedes-Benz C W203 Front Bumper Parking Sensor Wiring Loom Cable Harness
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BMW F20 F23 F11 N55 Engine Wiring Harness Motor Adapter Sensor System 2 7592529
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Mercedes-Benz A E M Class W163 W168 W210 CD Player Audio 10 Stereo Radio Unit
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Audi Q7 4L Battery Mounting Bracket Part Holder 7L0915138C
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PDC Module Mercedes W177 Parktronic Parking Assist Control Module A0009008129
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Hyundai H-1 2.5 CRDI Alternator Generator 373004A310
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Mini Cooper R60 R61 Antenna Aerial Diversity Trap Circuit 9185474
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Engine Wiring BMW F10 M5 F12 M6 Loom Harness Injection Valve Cyl. 1-4 7843329
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Volkswagen VW Jetta Mk6 Caddy 2K BCM Body Control Module Unit ECU 5K0937087AC
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Alternator Mini Cooper R55 R56 R57 R57 R58 Generator Petrol 7575650
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BMW X3 Z4 Series E83 E85 E86 Base B Positive Battery Terminal Cover Compartmen
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BMW X3 E83 LCI Crash System Control Unit Module ECU 3453791
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Part no. 6C0937132C
Audi A1 S1 8X Fuse Box Relay Top Upper Cover Cap Flap 6C0937132C
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BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 CAS3 + Key Manual
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Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Mercedes W221 S500 Audio Amplifier Sound System Control Module A2218205289
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Mercedes W204 Radio Control Function Button Knob Controller Unit A2048704658
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Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063CC
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BMW 3 5 7 Series E30 E34 E36 E38 E46 Petrol Engine Starter Motor 2354709
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Mercedes Vito W447 Door Module Front Right O/S Control Unit ECU A4479008006
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BMW E61 Light Control Unit Module LEAR LM E6X MIT AHI 6983539
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Audi A4 B8 A5 8T A6 C7 Q5 8R Fuse Box Relay Module Connector Plug 8K0937501
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Mini Cooper One R57 Footwell Light Module High EKS ECU PL3 FRM3R Lear 6827072
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BMW F48 F49 Front Bumper PDC Wiring Loom Cable Harness 9392514
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Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q
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BMW 3 F30 LCI 330e B48X Hybrid High Voltage EKMV Wiring Cable Wire 6824109
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BMW X3 E83 LCI EWS IV 4.4 Control Unit Module ECU 9145350
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Mini Cooper S R53 Petrol W11 Engine Control Unit ECU DME Manual 7527610
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Part no. 6934607
BMW Z4 Series E85 Roadster Driver Side Door Cable Harness Wiring 6934607
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Part no. P0396890
BMW 1 Series E82 Rear Bumper PDC Cables Wiring Loom Set 0396890
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Part no. 7503505
Cable BMW E39 Petrol Engine M52 Alternator Starter Cable Wire B+ 7503505
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Part no. 05L903141
Audi A3 8Y A4 B9 A6 C8 Alternator Bracket Mount Holder 2.0 TDI 05L903143
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Part no. A1718206226
Mercedes R171 Door Control Module Front Right O/S A1718206226
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Part no. 8379376
BMW X5 E53 Amplifier Hifi Speaker System 65128379376 8379376
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Audi TT 8N Radio Stereo Player Head Unit Chorus 4B0057186PX
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Skoda Yeti 5L Door Control Unit Module ECU Rear Left N/S 7N0959795
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Mercedes W176 A200 BlueEFFICIENCY 270.910 156HP Engine ECU Module A2709002100
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BMW F10 F11 B Plus Distributor Box Front Battery Cable Unit 9153418
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Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
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Part no. A6385454440
Mercedes W639 W906 Battery Terminal Fuse Box Control Unit Module A6385454440
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Part no. 3428544
BMW X3 E83 LCI Fuse Box Grouping Map Diagram Location 3428544
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Part no. 9271216
BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9271216
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Ford Fiesta Mk7 Bluetooth Interface Control Unit Module ECU D1BT-14D212-LA
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BMW X5 E53 Basic Body Control Unit Module GM3 6960249
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Renault Relay III Unit Module 4 Pins 12V 8200263345
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BMW 4 Series F33 F83 M4 Switch Folding Top Sliding Up Down Roof 9366374
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper 6904012
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Ford Transit Connect Mk2 Alternator Generator 165A 1.5 Diesel JX6T-10300-KB
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Audi A5 F5 45 TFSI DKNA Body Control Module BCM Unit ECU 8W0907063DG
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133
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Mercedes W213 Trunk Tailgate Rear Switch Sensor Module A2229059004
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Mercedes W168 Alternator Generator A0121544502
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Honda Civic Starter Motor Actuator Unit 12V 31200-PSA-J52
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Display Screen BMW F30 F31 F32 F33 Central Information 8,8" 6822626
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Seat Ibiza IV 6J Radio Stereo Audio Head Unit Panel MP3 6J2035153G
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Mini R50 R53 Fuse Relay Electrical Box Housing With Cover 1480790
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BMW 5 Series E60 E61 CCC CD Professional Navigation System Controller 9138440
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Audi A4 B7 Body Control Module BCM Comfort Control Unit Power Supply 8E0907279K
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Part no. 3457429-1
Mini Cooper R61 Footwell Light Module High EKS SZT ECU FRM3R PL3 Lear 3457429
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Part no. 7541694
BMW 3 5 7 X3 Series E46 E60 E65 E83 M54 Alternator Generator 7541694 155A BOSCH
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Part no. 8P0959802F
Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802F
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Ford Mondeo MK3 2.0 TDDi Diesel Engine Starter Motor 2S7T-11000-DC
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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 .