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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Audi A5 8T 2.0 TFSI CDNC Fuel Pump Control Module Unit ECU 8K0906093D
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Audi A3 8P Multimedia Stereo Sat Nav CD Player Radio Head Unit 8P0057186SX
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BMW E46 M47N M57N Alternator Generator 150A Valeo 7789980
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Audi TT FV Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8S0971365F
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Audi A1 8X Q3 8U Front Door Module Driver's Side Control Unit ECU 8X0959793E
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Ford Mondeo Mk4 Central Door Locking Control Unit Module ECU 7S7T-19G481-DB
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Starter Motor Ford Transit 2.4 TDDi Diesel Engine 1S7U11000BC
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Negative Battery Cable Audi A1 8X Volkswagen Polo Mk5 6R Cable 6R0971228S
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Alternator Iveco Daily II Engine Alternator Generator 140A 504057813
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Volkswagen Golf Mk6 Alternator Main Cable Wiring Harness Loom 1K0971349BP
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Mercedes C207 Coupe Module Rear Window Regulator Lifter Control Unit A2079003600
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Audi A5 F5 BCM Body Comfort Module Onboard Control Unit ECU 8W0907064EC
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Mercedes Sprinter W906 Diesel Starter Motor Engine Valeo A0061517401
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Audi A6 C7 Front Door Wiring Harness Loom Left N/S Passenger's Side 4G5971030DJ
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Peugeot 207 1.6 HDI Alternator Supporting Bracket Mount Diesel 9657477580
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BMW E90 E91 E92 330d M57N2 231HP Engine ECU KIT DDE 7809944 CAS + Key Automatic
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BMW 3 5 7 X3 E46 E60 E61 E65 E83 M54 Alternator Generator 150A TG15C018
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Audi A6 C8 Alternator Earth Line Ground Wiring Harness Cable 4K0971238
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BMW F20 F21 LCI M140i B58 Petrol ECU Control Unit Module DDE 8689723 Manual
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Vauxhall Movano A G9T722 Engine Control Unit ECU Module Diesel Manual 8200091428
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Volkswagen Polo MK5 6R 1.2 TDI CFWA Engine Unit Module ECU 03P906021A
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Ford Transit Mk8 Slam Panel Sensor Cable Wire Harness Cable Front BK3T-14B446-HC
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Audi Q7 4L Volkswagen Touareg 7P Oil Pump Control Module Unit ECU 7P0927601A
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BMW X5 E70 X6 E71 Onboard Monitor Sat Nav System Display Screen 8,8" 1138730
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Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
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Wiring BMW X3 F25 Automatic Gearbox Module Engine Wiring Harness 7811176
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BMW E81 E82 E84 E87 E89 E90 E91 E92 Radio Business CD 9259730
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BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469
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Mercedes H243 H247 Body Control Module BCM Unit ECU A2479005615
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Audi A4 B8 Door Wiring Harness Loom Rear Left N/S Cabling 8K0971687S
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Piaggio X8 X9 Vespa Granturismo Immobilizer Module Control Unit CDI 58054R
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Mercedes GLC C253 Tailgate Boot Lid Module Control Unit A2059004507
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Ford Transit MK7 Diesel Engine Wiring Cable Harness CC1T-12B637-BAE
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Audi A6 C7 A7 4G Engine Starter Motor 3.0 TFSI Petrol CGWD 06E911024A
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AUDI A8 S8 D3 Reversing Camera Control Module Rear View Unit ECU 4E0910441
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Ford Transit Mk8 Adblue Tank Pump Harness Wiring 2.2 Diesel GK21-14D378-AC
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BMW 5 7 E60 E61 E65 M57N M57N2 Compact Alternator Generator Valeo 170A 7802929
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BMW 5 Series E60 E61 Rear Left Right Door N/O/S Wiring Cable Harness 9175887
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BMW F13 Footwell Light Module Control Unit ECU FRM3 9313933
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BMW E46 M43 M57 Battery Cable Alternator Starter Base B+ Lead 1707017
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BMW 5 Series E60 E61 Front Seat Backrest Adjustment Bosh 0 390 201 999
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Radio Player Mini Cooper One R55 R56 CD Audio Player Head Unit 3454566
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Porsche Macan 95B Body Gateway Module ECU Control Unit 95B907530L
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Audi A3 S3 8V Parking Assist PDC Control Module 5QA919283
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BMW E46 Convertible Rollover Sensor Control Unit Module 8385223
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Audi A6 C6 Door Module Front Driver's Side Control Unit ECU 4F0959793P
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Ford Transit Custom Mk8 Engine Wiring Loom Harness Cable KK2T-9K499-CBC
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BMW F10 Body Control Module ECU Unit Junction Box PL6 JBBFE III V2 6955801
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Mercedes Vito W447 Earth Ground Cable Negative Battery Lead Wiring A4475407604
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Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Alternator Bracket Mount 117105124R
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Land Rover Discovery 4 Driver's Seat Memory Wiring Loom Harness AH22-14B719-CC
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Audi A4 B8 Lumbar Support Wire Harness Wiring Cable Front Right O/S 8T0971369A
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Audi A3 8V 1.4 TFSI CMBA 122HP Engine Control Unit ECU Manual 04E907309A
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Mini Cooper R55 R56 R57 CCC CD Navigation Sat Nav Head Unit 9170730
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Ford Transit Connect 1.8 TDCi Battery Positive Cable Clamp Wiring 2T1T14A280CG
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Porsche Macan 95B Headlight Control Module Unit Hella 7PP907357L
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VW Volkswagen Transporter T5 Magnetic Clutch Relay Unit Black 454 7E0919506
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VW Golf 8 1.5 eTSI HV Battery Positive Terminal Harness Cable Wiring 5WA971794R
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Ford Transit Custom Rear Axle ABS Wiring Loom Harness KK2T-2L508-AF
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BMW E60 LCI Radio Player Audio System Controller Head Unit 9195756
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Alternator Audi A6 C6 3.0 TDI Diesel Engine Generator 059903015R 1068673
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Volkswagen Touareg 7L PDC Parking Sensor Control Unit Module 7L0919283C
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Volkswagen Golf Sportsvan Fuse Box Engine Compartment Relay Unit 5Q0937125B
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VW Volkswagen Touareg 7P Alternator Generator 14V 190A 3.0 TDI Diesel 059903023
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Mercedes-Benz A W176 Front Right Door Cable Wiring Loom Harness O/S A1695450145
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BMW X3 X5 E39 E46 E53 E83 Mini R50 R52 Control Unit Control Unit EWS3 6905669
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Rear Bumper PDC Audi A5 Sensor Parking Distance Control 420919275 1706091849
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BMW F30 328i F32 428i N20 245HP Engine Unit ECU Kit DME 8639595 Automatic
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BMW E87 E90 Seat Wiring Front Sport Seat Lumbar Loom Harness Cable 6942556
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Volkswagen VW Golf Mk6 Alternator Cable Wiring Harness Loom 1K0971349AQ
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Seat Ibiza 6J Engine Wiring Harness Loom Manual Gearbox 1.2 TSI CJZC 04E971612ES
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Volkswagen VW Phaeton 3D Fuse Box Electrical Control Unit Module 3D0937499B
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Mercedes W204 Fuse Box Rear SAM Module Electrical Fuse Unit A2049067702
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Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M
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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 .