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. 3457402
Mini Cooper R58 Coupé Footwell Light Module High EKS PL3 FRM3R 3457402
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Skoda Octavia II Multimedia Head Unit Bolero Radio CD MP3 Player 1Z0035156F
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BMW X5 E60 E61 E65 E70 Front Left N/S Seat Angle Adjustment Drive 9146329
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Opel Combo Corsa Display Screen Dashboard Multifunction Monitor Unit 009164455
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BMW E60 E63 Body Control Module ECU Control Unit 9136039
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Mercedes W213 Center Console Cupholder Lamp Wiring Harness A2135402045
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Rain Sensor Mercedes W204 Light Solar Condensation Control Unit A2048208185
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Audi A6 A8 Q7 CAN Bus Jumper Contact Bridge Connector 4E0941817
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Volkswagen VW Golf Mk6 1.6 TDI Alternator Cable Wiring Harness Loom 1K0971349GA
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Audi S5 8T Front Seat Control Module Unit ECU Left Right N/O/S 8T0959760B
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BMW X3 E46 E83 Navigation Computer GPS System DVD Player Unit 6971353
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Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3455533
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Fuel Pump Module BMW F20 F21 F30 F31 N13 Petrol Control Unit 7447895
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Mercedes C140 Gearbox Module Transmission Basic Control Unit A0175450632
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Signal Control Module Mini R50 R52 Automatic Gearbox Transmission EGS 7578242
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CD Radio Mercedes Vito W639 Sprinter W906 Audio Stereo Head Unit A9068200286
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Mercedes A238 Convertible Folding Top Roof ECU Module Control Unit A2389000501
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Mercedes Vito W639 Coolant Radiator Fan Relay Control Module A0025424419
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Battery Cable Mercedes W169 W211 Negative Lead Wiring Pole Harness A1665420318
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Display Screen BMW F10 F11 On Board Central Information Monitor 6,5" 9284973
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Front Subwoofer BMW F90 M5 G11 G30 Central Right O/S Bass Speaker HiFi 6801076
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Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 1308204070
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Mercedes SLK R172 Roadster Folding Vario Roof Control Module A1729008412
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BMW E90 E91 E92 Bracket CD Changer Holder Amplifier Mounting 6945072
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Audi Q2 GA 35 TFSI DXDB Petrol Starter Motor Manual 02M911022F
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BMW X5 E70 Aerial Antenna Amplifier Diversity 9193847 9134281
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Mercedes W176 Head Unit Radio Cd Player Bluetooth Multimedia A2469009412
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Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118704085
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Mini Cooper D F55 F56 B37 Engine Injector Wiring Harness Cable Loom 8518411
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VW Volkswagen Golf Mk7 Battery Tray Holder Mounting Bracket Support 5Q0915321H
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Part no. 8K0919475AA
Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
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Part no. 8K0959501E
Audi A4 B8 Radiator Fan Relay Radiator Electrical Module Control Unit 8K0959501E
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BMW 3 Series E90 ECU Body Control Module H1 PL2 JBBFE Junction Box 9131776
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BMW E60 IBS Negative Battery Lead Cable Connector 6944687
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Mercedes W205 Multi-Purpose Windscreen Camera Control Unit Module A2479006804
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Part no. A2711534591
Mercedes W203 C180 Kompressor M271 Engine Module ECU A2711534591 Automatic
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Audi A3 8V Air Module Control Sensor SRS System ECU Unit 5Q0959655BT
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BMW X5 E46 E53 Side Air Module Control Unit ECU 6912755 6962530
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Part no. 6846905
BMW 1 2 Series F20 F21 F23 LCI Top Hifi Audio Amplifier Harman Kardon 9307293
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BMW E60 E87 LCI E90 E91 N47 Preheating Control Glow Plug Unit Diesel Hitachi
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Mercedes W205 Ignition Control Unit A2139001223
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Mercedes W177 W247 M260 Exhaust Control Valve Flap Actuator Drive A2229067403
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Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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BMW 3 Series E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Manual
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BMW X3 X5 Z4 E53 E83 E85 6-Disc CD Changer Multichanger With Magazine 6913389
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Audi Q2 GA 3.0 TDI DTTC Diesel Engine Alternator Generator 05L903026B
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Fiat Doblo 2.0 Multijet Diesel Engine Starter Motor 51984359
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Part no. A2129000406
Fuel Pump Module Mercedes W207 C207 A207 Control Unit ECU A2129000406
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Part no. 7405634
BMW G20 Trunk Boot Lid Tailgate Pushbutton Lock System Trim Cover Panel 7405634
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Screen Ring Mini F55 F56 F57 Navigation Display Head Unit Trim Cover 9843968
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Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
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Part no. 04L907282B
VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 511 9 Pins 04L907282B
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Part no. 3453890
BMW Mini Cooper Cabrio R57 Aerial Roof Antenna Base Unit 3453890
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Part no. 5Q0937084AJ
Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AJ
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BMW E91 LCI ECU Body Control Module H4 PL2 JBBFE Junction Box 9187544
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BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
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Part no. 03C906027CF-1
Audi A1 8X 1.4 TFSI CAVG 185HP Petrol Engine ECU Kit Ignition + Key 03C906027CF
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Part no. 7823343
Alternator BMW F20 F21 F30 F31 F32 N47N Diesel Generator 180A 7823343
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Seat Ibiza IV Multimedia Radio Sat Nav CD Player Head Unit 5QA035858A
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BMW X1 Series F48 Right Head Air Module Roof Curtain O/S 7352602
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Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
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Part no. 117105124R
Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Alternator Bracket Mount 117105124R
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BMW 7 Series E65 Dynamic Drive Pump Wiring Loom Harness ARS Valve Block 6907314
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Part no. 4F0959760D
Audi Q7 4L Front Seat Memory Control Module Unit ECU Left Right N/O/S 4F0959760D
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BMW 3 E91 ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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Part no. 8255704
BMW X3 X5 E53 E63 E83 Front Seat Belt Tensioner Buckle Connector Cable 8255704
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Part no. 6980177-3
BMW E81 E87 E90 E91 F10 F11 X5 E70 Relay Unit Green Set TYCO 5 Pins 6980177
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Part no. 9226347
BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9226347
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Part no. 06K903026C
Audi A3 S3 8Y Engine Alternator Generator Electric Unit 14V 140A 06K903026C
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Part no. 3456857
Mini Cooper R57 PL3 SPEG H4 Fuse Control Unit Module Distribution Box 3456857
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Part no. A1669063801
Relay Box Mercedes ML W166 Engine Compartment Relay Module A1669063801
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BMW E81 E87 E90 LCI Top Hifi System Amplifier Logic 7 L7 Harman Becker 9218086
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Volkswagen VW Touran Door Harness Loom Cable Wiring Front Passenger 1T0971120AC
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Part no. 7519721-1
BMW 3 5 7 X3 E46 E60 E61 E65 E83 M54 Alternator Generator 150A TG15C018
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Part no. 8736162
Head Unit BMW F20 F21 F22 F30 F31 F82 LCI Sat Nav Radio Media Navigation 8736162
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Part no. A2045453901
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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Part no. A6461506479
Mercedes C209 220 CDI M646.966 150HP Engine Unit ECU A6461506479 Automatic
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Mercedes W177 Front Seat Left N/S Module Control Unit ECU A2479005707
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BMW F20 F21 F30 F31 Parking Assistant Control Unit Module 6864898
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Volkswagen Touareg 7L Bluetooth Telephone Module Control Unit 7L6035730C
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Volkswagen Passat B7 PDC Parking Assistant Module Control Unit 3AA919475N
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Bass Speaker BMW F30 F31 F32 Central Subwoofer Harman Kardon Left N/S 9210151
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BMW 3 5 7 X5 Series E61 E65 E70 E90 Telematics ECU Control Unit GSM 9206778
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Mercedes ML W163 Comfort Control Module Central Electronics A1635457332
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BMW Mini Cooper One R50 R53 Fuse Box Cover Black 1480793 61131480793
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Volkswagen Transporter T6 Power Distribution Unit Box With Bracket 7LA937548
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Gearbox Module BMW E38 E39 Automatic Transmission Basic Control Unit EGS 1422768
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Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Mercedes W205 W217 W222 Tailgate Trunk Control Module Unit A2229006008
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Mercedes-Benz CLK W208 E W210 Xenon Headlight Level Control Unit Module LWR
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Mercedes H243 Multifunction Front Camera Control Unit Module A2479008715
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BMW F01 LCI Seat Module Front Seat Control Module Unit Temic 9354277
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BMW 7 Series E65 E66 Driver's Seat Airbag Sensor Control Unit Module
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Part no. A2095450901
Mercedes CLK W209 Convertible Fuse Box Rear SAM Module Control Unit A2095450901
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Module Mercedes SLK R171 Automatic Transmission Control Module A0005457916
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Part no. A0009102675
Mercedes W204 Seat Loom Cable Multicontour Pump Control Front A0009102675
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Part no. 6867169
Air Module BMW F20 F23 F30 F32 F36 Domain Control Module ICM Unit 6867169
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Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712
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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 .