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.
Make
Category
Subcategory
Condition
In Stock
Price
Part no. 8K0971095G
Audi RS4 B8 Front Bumper PDC Wiring Park Assist Sensor Harness 8K0971095G
Product currently unavailable
Part no. 7616120
Alternator BMW F20 F21 F30 F31 F36 Petrol N55 Generator 210A 7616120
Product currently unavailable
Part no. 8P4035223D
Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
Product currently unavailable
Part no. 06B903016AB-1
Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
Product currently unavailable
Part no. 9234942
Telematics Module BMW E81 E87 E90 E91 E92 LCI Combox Navigation 9234942
Product currently unavailable
Part no. A6511501879-3
Mercedes W639 OM651.940 113 CDI 136HP Engine Module ECU A6511501879 Automatic
Product currently unavailable
Part no. A2115455301
Fuse Box Mercedes W211 Rear Trunk Module Relay Fuse Box SAM A2115455301
Product currently unavailable
Part no. A6461507172-1
Mercedes W639 Vito OM646.980 116HP Engine Module ECU Kit A6461507172 Key Lock
Product currently unavailable
Part no. A2038704589
Mercedes W203 CD Media Player Radio Audio 20 Phone Head Unit A2038704589
Product currently unavailable
Part no. 9866982
BMW F20 F22 F30 F32 REM Rear Electronic Module Fuse Box Control Unit V5 9866982
Product currently unavailable
Part no. 8589145
BMW F20 F21 F30 LCI 118d 318d B47 DDE Engine Control Unit ECU 8589145 Automatic
Product currently unavailable
Part no. 8E0907279N
Audi A4 B7 Body Control Module BCM Comfort Control Unit Power Supply 8E0907279N
Product currently unavailable
Part no. 8365960
BMW E38 E39 E53 Battery Crash Disconnection Control Relay 8365960
Product currently unavailable
Part no. 6901469-1
2X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
Product currently unavailable
Part no. A2125452640
Mercedes W212 Control Unit Module Bracket Holder Mount A2125452640
Product currently unavailable
Part no. 7L0937503D
Audi Q7 4L Fuse Box Relay Control Unit Module 7L0937503D
Product currently unavailable
Part no. 4F0035411E
Audi TT 8J Speaker Loudspeaker Front Door Left Right N/O/S 4F0035411E
Product currently unavailable
Part no. 9236459
BMW F07 GT Light Control Footwell Module Unit ECU FRM III 9236459
Product currently unavailable
Part no. 9134479-1
BMW E93 Body Control Module Junction Box ECU PL2 JBBFE H1 9134479
Product currently unavailable
Part no. 7352602
BMW X1 Series F48 Right Head Air Module Roof Curtain O/S 7352602
Product currently unavailable
Part no. 8512292-1
BMW E90 E91 LCI N47N 318d 143HP Engine ECU Kit DDE 8510832 + CAS3 + Key Manual
Product currently unavailable
Part no. 9148256
BMW E60 Front Seat Control Unit Module ECU Right Temic 9148256
Product currently unavailable
Part no. A6461502720
Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6461501388
Product currently unavailable
Part no. 4868429AD
Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
Product currently unavailable
Part no. 9175866
BMW E60 E61 Front Right Door O/S Wiring Cables Harness 9175863
Product currently unavailable
Part no. 8380068
BMW E46 Audio Amplifier Hifi Harman Kardon Sound System 8380068
Product currently unavailable
Part no. 81A971104E
Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom 81A971104E
Product currently unavailable
Part no. A0155457032
Mercedes W124 S124 Ignition Engine Control Unit Module A0155457032
Product currently unavailable
Part no. A1729000814
Head Unit Mercedes SLK R172 Radio Media Sat Nav Unit Switch Panel A1729000814
Product currently unavailable
Part no. 9.67848E+11
Citroen Berlingo Peugeot Partner Body Control Module BSI Unit 967847688001
Product currently unavailable
Part no. 8582719-5
Mini F55 F56 Cooper D B37 Diesel Engine ECU Kit DDE 8582719 BDC + Key Automatic
Product currently unavailable
Part no. 7549396
Earth Ground Cable BMW E90 E91 E92 Negative Battery Lead Wiring 7549396
Product currently unavailable
Part no. A2929007101
Mercedes GLE C292 Coupe Trunk Lid Module Automatic Closing A2929007101
Product currently unavailable
Part no. 9192641
BMW 5 Series E60 LCI Light Module Control Unit ECU Lear LM II E6X LWR 9192641
Product currently unavailable
Part no. 9207515
BMW X1 Series E84 Battery Cable Wire Lead Positive 9207515 61129207515
Product currently unavailable
Part no. 7811111-4
BMW X3 E83 LCI 2.0d N47 177HP Engine Control Unit ECU DDE 7811111 Manual
Product currently unavailable
Part no. 8518168-1
BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8518168 CAS3 + Key Manual
Product currently unavailable
Part no. 55580911
Vauxhall Opel Insignia A Diesel Glow Plug Wiring Loom Cable Wiring 55580911
Product currently unavailable
Part no. 9369123
BMW X3 F25 Front Seat Control Unit Module ECU Left Right N/O/S 9369123
Product currently unavailable
Part no. 8574093
BMW F10 F30 320d 520d ed 163HP Engine Control Unit N47N ECU DDE 8574093 Manual
Product currently unavailable
Part no. A2115405332
Mercedes S211 Rear Axle Self Levelling Device Cable A2115405332
Product currently unavailable
Part no. 9162959
Seat Control Unit BMW X5 E70 E87 E90 E91 E92 Module Memory ECU 9162959
Product currently unavailable
Part no. A6519003403-4
Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
Product currently unavailable
Part no. 3452681-1
Mini Cooper One 1 R55 R56 R57 Radio Boost CD Player Head Unit 3452681
Product currently unavailable
Part no. 9646972280
Peugeot Boxer Citroen Relay Engine Starter Motor Diesel Valeo 9646972280
Product currently unavailable
Part no. B6 787 5877
Mercedes-Benz C-Class W204 Bluetooth Hands-free Mobile Phone Adapter B6 787 5877
Product currently unavailable
Part no. 6870277
Air Module BMW X5 F15 X6 F16 ECU ICM Control Unit 6870277
Product currently unavailable
Part no. A6511500186
Mercedes W212 Engine Wiring Harness Cable Loom A6511500186
Product currently unavailable
Part no. 9186664
BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 9186664
Product currently unavailable
Part no. 7542529-2
BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
Product currently unavailable
Part no. A2721533279
Mercedes R171 SLK350 Kompressor M272.963 Engine Control Unit ECU A2721533279
Product currently unavailable
Part no. A0155429317
Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
Product currently unavailable
Part no. 1378238-3
BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
Product currently unavailable
Part no. 6870078
Earth Ground Cable BMW G20 G21 G30 G31 G11 Line Strap Battery Lead 6870078
Product currently unavailable
Part no. 6827072-2
Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM3R 6827072
Product currently unavailable
Part no. 9149656
Bluetooth Module BMW E81 E87 E90 E91 Hands-free Control Unit MULF2 9149656
Product currently unavailable
Part no. 02Z911024P
Audi A3 8P VW Scirocco Mk3 Starter Motor Engine Valeo 1.4 TSI Petrol 02Z911024P
Product currently unavailable
Part no. 4H0907064CN
Audi A6 C7 BCM Body Comfort Convenience Module Unit ECU 4H0907064CN
Product currently unavailable
Part no. 7561684-5
BMW E60 E90 325i 525i N52 218HP Engine ECU Kit DME 7561684 CAS2 + Key Manual
Product currently unavailable
Part no. 5Q0937084AC
Skoda Octavia 5E Audi A3 8V Body Control Comfort Module BCM ECU Unit 5Q0937084AC
Product currently unavailable
Part no. 8E0035192T
Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T
Product currently unavailable
Part no. 6823590
BMW F10 Footwell Light Control Unit Module ECU FRM III 6823590
Product currently unavailable
Part no. 9236462
Gateway Module BMW F10 F11 Central Control Unit Lear ZGW-01 High 9236462
Product currently unavailable
Part no. 7588502-9
Mini Cooper R55 R56 N12 1.6 120HP Engine Control Unit ECU DME 7588502 Manual
Product currently unavailable
Part no. 9186215
Audio Controller BMW E90 System Control Unit Module Navigation 9186215
Product currently unavailable
Part no. 1406067
Alternator Ford Transit MK2 Sierra Scorpio 2.0 Engine Generator 1406067
Product currently unavailable
Part no. 8385236
Mini R50 R52 R53 Positive Battery Terminal Cover Cap Red 8385236
Product currently unavailable
Part no. 8067512
BMW F10 F11 F30 F31 Alarm System Unit Security Basis Module 8067512
Product currently unavailable
Part no. 8708257-1
Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257
Product currently unavailable
Part no. 8W0035502C
Audi A4 B9 Wireless Charger Centre Console Phone Charging Module 8W0035502C
Product currently unavailable
Part no. 8517016-1
BMW X5 E70 LCI 40dX N57S 306HP Engine ECU Kit DDE 7810980 CAS3 + Key Automatic
Product currently unavailable
Part no. A6549009900
Glow Plug Relay Mercedes W177 Diesel OM654 Preglow Module A6549009900
Product currently unavailable
Part no. 7798006-1
BMW E60 E61 E87 LCI E81 E82 X1 E84 E90 E91 N47 Diesel Starter Motor 7798006
Product currently unavailable
Part no. 9666173080
Yaw Sensor Citroen Berlingo Peugeot Partner ESP Rotation Rate Unit 9666173080
Product currently unavailable
Part no. 3412238
BMW X3 Series E83 2.5i 3.0i M54 Automatic Gearbox Wiring Loom Harness 3412238
Product currently unavailable
Part no. 9267200
BMW 1 Series E82 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200
Product currently unavailable
Part no. 9663786380
Peugeot 207 1.6HDI Diesel Engine Control Unit ECU Module 9663786380
Product currently unavailable
Part no. 9131710-1
BMW E60 M-Audio CD Radio Player Head Unit Professional 9131710
Product currently unavailable
Part no. A1408201526
Mercedes W140 Seat Heated Heating Control Unit Module ECU A1408201526
Product currently unavailable
Part no. 8X0919475M
Audi Q3 8U PDC Parking Assistance Control Module Unit ECU 8X0919475M
Product currently unavailable
Part no. 6978272
BMW 1 3 Series E87 E90 Power Distribution Fuse Box Front 6906611
Product currently unavailable
Part no. 7811702
BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE CAS 3 Key 7811702 Manual
Product currently unavailable
Part no. 9148016
BMW E90 E91 E92 Professional CCC DVD Navigation System Controller 9148016
Product currently unavailable
Part no. 8W0959593E
Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
Product currently unavailable
Part no. 5Q0971250AB
Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250AB
Product currently unavailable
Part no. 3453247
BMW X3 E83 E90 Engine Automatic Gearbox Module Wiring Cable Loom Harness 3453247
Product currently unavailable
Part no. 8385232
PDC Module BMW E39 Parking Assist Distance Control Module PDC 8385232
Product currently unavailable
Part no. 4G0959754K
Audi A6 C7 Ignition Smart Key Fob Lock Remote Alarm Button Control 4G0959754K
Product currently unavailable
Part no. A0009824823
Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
Product currently unavailable
Part no. A2129015706
Mercedes W212 Display Screen Multifunction Navigation Dashboard A2129015706
Product currently unavailable
Part no. 8573258-1
BMW F20 F21 116d N47N 116HP ECU Kit DDE 8573258 + Key + FEM Manual
Product currently unavailable
Part no. A1561540102
Mercedes W204 C63 AMG M156 Engine Alternator Generator BOSCH 180A A1561540102
Product currently unavailable
Part no. 3456394
Mini Cooper R56 LCI ECU Footwell Light Module FRM3R LOW EKS Lear 3456394
Product currently unavailable
Part no. 6901269
BMW X3 Z4 Series E83 E85 E86 Base B Positive Battery Terminal Cover Compartmen
Product currently unavailable
Part no. A1635400841
Mercedes W163 Battery Ground Earth Strap Cable Wiring A1635400841
Product currently unavailable
Part no. 1378481080
Peugeot Boxer Fiat Ducato 2.2 Diesel Battery Alternator Wiring Cable 1378481080
Product currently unavailable
Part no. A0355451532
Mercedes W211 Gearbox Module Transmission Control Unit A0355451532
Product currently unavailable
Part no. 4F1910336B
Telephone Control Module Audi A8 4E S8 D3 Bluetooth Unit 4F1910336B
Product currently unavailable
Part no. 4E0035111A
Audi A6 C6 6-disc Compact CD Changer 4E0035111A
Product currently unavailable
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 .