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. 7W93-11A134-AA
Jaguar XF 250 Power Adapter Battery Positive Terminal 7W93-11A134-AA
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Mercedes W204 C180 M271.820 BE 156HP Engine ECU Kit A2711500391 Key + Lock
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Mercedes R172 BlueEFFICIENCY 271.861 184HP Engine ECU Kit A2711500391 Key Lock
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Skoda Octavia 1Z Audi A3 8P Alternator Wiring Harness Loom Cable 1K0971349CR
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Starter Motor Citroen Berlingo Peugeot Partner Engine Diesel 1.6 HDI 9640825280
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Porsche Cayenne 9PA Telephone Phone Control Unit Module 7L5035741F
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Audi A4 B8 Door Wiring Harness Cable Loom Rear Left N/S 8K0971687Q
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Mercedes W204 S204 Radio Head Unit CD Player Control Panel Switch A2049060401
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Engine Wiring BMW F30 LCI 330e Ground Electrical Cable Wiring 8642676
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BMW E92 E93 LCI Front Fog Light Wiring Harness Cable Right O/S 6937466
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BMW 3 Series E92 Bluetooth Car Phone Display Screen Bracket Housing 0410381
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Audi TT FV Starter Motor Engine Diesel 02M911021S
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BMW X6 E71 Door Wiring Harness Loom Cables Driver's Side 9242072
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BMW E39 523i Petrol M52 Immobiliser EWS 3 Control Module Siemens 8382454
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Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S
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VW Volkswagen Touran 1T 1.4 TSI Starter Motor Petrol Engine Unit 02Z911023G
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Platinium Prestige Heavy Duty Perfrormace Accumulator Battery 60Ah 540A
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Mercedes X253 Rear Bumper Electrical Wiring Harness A2535403718
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BMW F07 F10 F11 X6 F16 Rear Cabin Entertainment Audio CD DVD Player 9368387
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Skoda Octavia 5E III Park Parking Assist PDC Distance Control Module 5QA919283B
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VW Volkswagen Transporter T6 Battery Wiring Harness Cable 7LA971158A
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BMW E46 M3 Coupe Door Wiring Loom Harness Cable Driver's Side 6935219
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Ford Mondeo Mk4 Fuse Distribution Box Electrical Unit Diesel 6G9T-14A067-CA
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Audi A6 C8 Battery Postive Terminal Distribution Power Board 4K0915459
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BMW F20 F21 M135i N55 231HP Petrol Engine Control Unit ECU DME 8626472 Manual
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GM Vauxhall Opel Relay 4-Pin Multi Use Glow Plug Unit Magenta 90494959
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Range Rover L405 Door Wiring Loom Harness Cable Front Right O/S CK52-14631-LE
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Mercedes C117 X156 W176 W246 Battery Plus Positive Cable Cover Trim A2465410805
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Mercedes A238 M276 Engine Alternator Wiring Loom Harness A2535400701
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Audi Q3 F3 Air Module ECU Control Unit Module 5Q0959655CC
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Land Rover Discovery 4 Air Suspension Compressor Wiring Cable CH22-12B654-AA
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CD Player BMW E60 E61 M-ASK M Audio System Controller Navigation Radio 6955347
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BMW E87 Footwell Light Module Control Unit NSW PL2 FRM II Lear 9166707
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Mercedes W205 Centre Console Wiring Harness Cable Loom A2055404734
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BMW F10 F11 520d N47N 184HP Engine ECU Kit DDE 8510137 CAS 4 + Key Automatic
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BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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Volkswagen Polo 6R Mk5 Engine Wiring Loom Harness Cable 03E971612AE
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BMW F20 F21 116i N13 136HP Engine Control Unit ECU DME 8610484 Manual
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Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450
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BMW 3 Series E46 M54 Engine Wiring Harness Module Petrol Automatic 7506791
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Ford Mondeo Mk4 Keyless Entry Receiver Antenna Module 8M5T-15K603-KA
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9387265
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Ford Fiesta Mk7 Bluetooth Microphone Unit Module Telematics 8M5T-19A391-AC
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Ford Fiesta Mk7 Wire Wiring Harness Loom Passenger Front Left N/S C1BT14K138BDG
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BMW F25 VDC1 Suspension Control Module Unit ECU 6874797
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Audi Q7 4M Impact Sensor Unit Wiring Loom Harness Connector 4M0971677B
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Jaguar XF250 3.0 306DT AJV6D Engine Alternator Generator 8X2310300CB
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Chrysler Grand Voyager Diesel Engine 2.8 CRD Starter Motor 04868860AA
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Land Rover Discovery Sport L550 Fuse Box Cover Cap JK72-14A076-AA
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Land Rover Discovery 3 L319 Fuse Box Power Distribution 9H22-14290-VA
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BMW E63 E64 LCI Driver's Seat Occupancy Sensor Mat Control Unit Module 9126457
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Citroen C4 Starter Motor Diesel Engine 1.6 HDI Actuator Unit 9662854180
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BMW E84 F25 F26 N20 Engine Sensor Module Wiring Cable Loom Harness 7619136
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Land Rover Range Rover L322 Battery Negative Terminal Cable AH42-10C679-AF
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Mercedes GLC C253 Rear Tail Lid Side Light Lamp Wiring Cable Left N/S 968497
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Audi A6 C8 Antenna Aerial Amplifier AMP 4K9035225B
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Mercedes W205 Door Wiring Harness Loom Cable Front Driver's Side A2055408709
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Peugeot Expert Citroen Berlingo Diesel Engine Alternator Generator 5705AS
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CD Changer Audi S6 C6 A8 D3 6-Disc Magazine Head Unit MMI 4E0910110A
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Mercedes W213 Parking Control Unit Camera View Module ECU Parktronic A0009006418
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Mercedes W204 Engine Wiring Harness Cable Loom A2711508033
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Part no. A1408205126
Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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Audi Q7 4L Front Memory Adjustment Module Control Left Right N/O/S 4L0959760
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Mercedes W164 ML320 OM642.940 224HP Diesel Engine Unit ECU Kit A6421502077 + Key
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Audi Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter Motor 059911024E
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Mercedes-Benz C CLK Class W203 C209 Vacuum Solenoid Valve A2038000178
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Peugeot 508 5008 2.0 HDI Galaxy MK3 2.0 TDCI Alternator Bracket Mount 9688628680
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Vauxhall Opel Astra G Engine Control Unit ECU Module Petrol Automatic 09391340
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Range Rover L405 Front Seat Air Module Unit Right O/S CK52611D32AB
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Audi A4 B8 Door Wiring Harness Loom Cable Front Driver's Side 8K0971029B
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Mercedes W204 Rear Tail Light Wiring Loom Harness Plug Left N/S A2048200164
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Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Control Unit A2139068701
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Audi A6 4F C6 3.0 TDI Diesel Starter Motor Bosch 0001109319 059911024D
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BMW GT G32 ECU Body Domain Controller BDC Comfort Unit Module 8715804
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Audi Q2 GA Q3 F3 Rear Boot Trunk Lid Tailgate Control Unit Module 5Q0959107AB
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Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR
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Mercedes W213 Front Seat Control Unit Module ECU A2139008309
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Mercedes S205 Estate W213 W222 Towing Hitch Trailer Hook Module Unit A2139009216
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VW Volkswagen Caddy Maxi Interior SRS Air Module Unit Control Sensor 2H0959655B
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Mercedes SLC R172 Parktronic Parking Sensor Module Unit ECU A1729003106
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Starter Motor Mercedes W204 W212 W639 OM651 Diesel Engine Denso DSN967
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BMW G20 G21 G26 330d 430d B57P Diesel Starter Cable Wiring B+ 7822015
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Porsche Cayenne 955 S 4.5 V8 450HP 48.50 Engine Module ECU 022906032BT Automatic
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Ford Fiesta Mk7 Body Control Module BCM Controller Unit ECU DN1T-15K600-GE
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Volkswagen Scirocco Mk3 Negative Battery Terminal Cable Wiring 1K0971250AE
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Mercedes C253 Rear Bumper Switch Tailgate Opener Sensor Module A2319059900
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Ford Mondeo MK4 Negative Battery Terminal Cable Wiring Connecting 6G9T14301BK
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Seat Heating Sensor Mercedes W209 W211 W220 Left N/S Control Unit A2208203226
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VW Volkswagen Touareg 7L Gearbox Transmission Transfer Box Module 0AD927755AT
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Ford Mondeo MK3 2.0 TDDi Diesel Engine Starter Motor 2S7T-11000-DC
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Smart A453 Renault Trafic MK3 Front Dashboard Tweeter Speaker 281480007R
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Mercedes A205 C205 S205 W222 Air Suspension Control Unit Module ECU A2229002119
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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 .