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. 7524109
BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Gearbox Manual 7524109
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BMW E65 E66 Steering Wheel Electronics Control Unit Module 6958039
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Audi A5 S5 8T BCM Body Control Module Unit ECU 8K0907064GE
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BMW X3 X5 Series E53 E83 PDC Parking Distance Control Unit Active Module 6942676
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BMW F40 F46 Mini F56 F60 Battery Holder Mount Tray Bracket Support Trim 9386604
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6952987
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BMW F20 F21 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8630125 Manual
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BMW 5 6 Series E60 E61 E63 E64 LCI CD Changer Cartridge Magazine 9129433
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Audi A5 8T Module Lane Assist Control Unit Rear Left N/S 8K0907568H
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Mini Cooper R56 LCI R60 N16 1.6 Petrol Engine ECU Kit DME 7615981 + CAS 3 + Key
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Seat Control Unit BMW E60 E61 Module ECU 9148257
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BMW E60 E63 E64 530i 630i N52 258HP Engine Control Unit Module ECU DME 7546990
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BMW 3 Series E90 E91 E92 E93 Negative Battery Cable Minus Pole IBS
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Bluetooth Combox BMW E81 E87 E90 E91 LCI Telematics Module 9257160
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Skoda Octavia II PDC Parking Sensor Control Unit Module Prince Blue F5X
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BMW E60 LCI E81 E90 E91 Petrol Alternator Generator Bosch 180A
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BMW F10 F20 F30 Integrated Relay Power Supply Module Distribution Box 7633242
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Ford Transit Connect Negative Battery Terminal Cable Wiring 9T1T-14A280-MBC
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Accelerating Sensor BMW E60 E61 E63 E64 E65 E70 Control Unit Module 6752866
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BMW E87 LCI E90 120i 320i Petrol N43 170HP ECU KIT DME 7599881 CAS3 Key Manual
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Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
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BMW F20 F21 F30 F31 Diesel Alternator Generator 180A 8578608
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BMW F20 F30 F32 120i 320i 420i N20 184HP ECU Kit DME 8610635 + Key + FEM Manual
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Mercedes W204 Dashboard Dash Navigation Central Display Wiring Cable A2045405709
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BMW Mini Cooper R56 High SPEG PL3 DC/DC M2 Fuse Distribution Box 3451924
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Audi A3 8P Body Control Comfort Unit Module BCM Unit 8P0907279C
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Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7610011 Manual
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BMW F20 F30 116i 316i N13 Engine ECU KIT DME 8603352 + FEM + Key Manual
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BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9221110
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Mercedes ML W164 SLK R171 W211 C219 CD Changer 6 Disc Player Unit A2118705390
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VW Volkswagen Touran Body Control Comfort Unit Module BCM 3C8937049D
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BMW Z4 Series E89 Cabrio Roadster Radio Antenna Mast Aerial FM Bumper 9123994
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Mercedes A B W169 W245 M266 Petrol Engine Wiring Harness Loom A2661502933
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BMW 1 3 5 Series F10 F20 F30 Wiring Harness Motor Sensorsystem Module Petrol N20
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Part no. 7620985-1
Mini Cooper S R60 ALL4 N18 1.6 184HP ECU Kit Unit DME 7620985 CAS3 + Key Manual
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Rear Bumper PDC BMW E65 E66 Front Ultrasonic Sensor Schwarz 2 Black 668
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Part no. 8K0907801L
Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L
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Stereo Radio Amp Audi A5 F5 Sound System Speaker Amplifier 8W0035465
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Fuel Pump Control Audi A4 B9 A5 F5 A6 C8 Pump Unit Module ECU 4K0906121C
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Mini Cooper R55 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Mini Cooper R55 R56 R60 CAS 3 ECU Control Unit Key Reading Module 9221719
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Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
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Mercedes ML W166 Fuse Box Front Relay Control Unit Module A1665402450
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BMW E38 Earth Cable Battery Engine Electrical Cable Wiring 1436907 1436908
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Mercedes Vito W639 109 CDI OM646.983 88HP Engine Module ECU Kit A6461532691
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BMW X3 E53 E60 E61 E64 E65 X5 E83 Power Steering Speed Sensor 6774040
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Mercedes W211 Cable Loom Wiring Parking Sensors Rear A2115406606
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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Part no. 9274428-1
Parking Sensor Mini Cooper F54 F55 F56 F57 F60 PDC Ultrasonic Black 9274428 SET
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Mini Cooper One R50 Fuel Filler Cover Flap 0148459 Pure Silver - 900
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Mini Cooper F54 F55 136HP Petrol B38 Engine ECU Kit DME 8654460 + BDC + Key
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BMW E46 Touring Positive Battery Cable Plus Pole Lead Loom 6907435
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Ford Transit Mk7 2.2 TDCi Engine Wiring Harness Cable Loom 6C1T-9K499-AHC
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Skoda Fabia 5J Dance CD Player Audio Stereo Radio Head Unit 5J0035161A
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Volkswagen New Beetle Earth Ground Cable Negative Battery Lead Wiring 1C0971235A
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BMW Mini Cooper Cabrio R57 Aerial Roof Antenna Base Unit 3453890
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Mercedes SLK R171 Door Module Front Left N/S Control Unit ECU A1718207126
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BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541
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Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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Radio CD Player Audi A4 B9 A5 F5 Q5 FY Stereo Sat Nav Head Unit 8W5035035B
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Starter Mercedes W177 M282 Petrol Engine Starter Motor A2829062400
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Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
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Audi A7 4G 3.0 TDI Alternator Generator 059903018TX
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Part no. 4461712-1
Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712
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Part no. 9302356
Battery Cable BMW F10 F11 X3 F25 Lead Negative IBS Wiring 9302356
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Mercedes W212 Fuse Box Control Unit Power Distribution Electrical A2125407050
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Part no. 6965263
BMW 1 3 Series E82 E90 E92 Switch Cluster Cruise Control Stalk Unit 6965263
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Part no. 7809002
BMW E81 E82 E87 LCI E88 Engine N47S 123d ECU Kit DDE 7809002 CAS3 + Key Manual
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Part no. 6819838
BMW F30 LCI G11 G30 High Voltage Battery Charging Unit Module 6819838
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Mercedes W212 COMAND Radio Head Unit Navi CD DVD Player Navigation A2129003708
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Part no. 5B31359
BMW i4 G26 Fuse Box Front Body Control Module ECU BCM Unit 5B31359
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Part no. 7794952-2
BMW 5 Series E60 M57 2 Engine Starter Motor 7794952 0986021230
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Mercedes W203 W211 Diesel Engine Starter Motor A0051511301
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BMW F01 F07 F10 F11 F12 F25 CAS4 Module Control Unit Key Reading 6809374
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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Part no. 1K0953549CF
VW Volkswagen Golf MK6 Steering Wheel Column Control Module 1K0953549CF
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Part no. 3450588
Mini Cooper R55 R56 Harman Becker Hi-Fi Audio System Amplifier 3450588
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Part no. 58053R
Vespa Piaggio 125 GTS CDI Ignition Module Control Unit 58053R
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Part no. A1718203126
Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204126
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Part no. 04L903018A
Audi A4 B9 A5 F5 Q5 FY A6 C8 A7 C8 Alternator Generator Valeo 04L903018A
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Part no. 9177981
BMW E90 ECU Body Control Module H1 PL2 JBBFE2 9177981
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BMW E87 E90 E91 E92 CCC CD Professional Navigation System 9138448
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BMW E82 E90 E91 E92 N54 135i 335i Alternator Generator 180A 7558220
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BMW 3 X3 X5 Z4 Series E46 E53 E83 E85 E86 Video Module High 6966615
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BMW E88 ECU Body Control Module H4 Junction Box PL2RR JBBFE IIIR 9270385
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BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
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Tailgate Module Mercedes W204 W212 Boot Lid Locking ECU Control Unit A2128203542
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Audi Q3 8U 2.0 TDI 140HP CFFB Quattro Engine Control Unit ECU 03L906018CN Manual
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BMW 1 3 Series E81 E82 E84 E87 E88 E90 E91 E92 Power Distribution Box 6936653
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BMW F01 F02 LCI F07 GT Control Unit Module Voltage Transformer VSU400 9247159
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Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
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Mini Cooper Countryman R60 Champ 2 Navigation Radio DAB Player Unit 9268802
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Citroen C4 Peugeot 3008 Starter Motor Engine Diesel 9663528880
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Part no. 9170453-1
BMW X5 E70 Footwell ECU Light Control Unit Module Xenon FRM II Lear 9170453
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Part no. 7599881-2
BMW E87 LCI E90 118i 318i N43 143HP ECU KIT DME 7599881 CAS3 + Key Automatic
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Part no. 3420786
BMW X3 E83 Light ECU Control Module Unit Lear LM MAN.LWR 3420786
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Part no. 9134855-1
Battery Lead BMW E81 E87 Battery Cable Negative IBS 9134855 61129134855
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Part no. 7796818
BMW X5 E53 3.0d M57N Wiring Loom Harness Engine Automatic Gearbox
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Part no. 8P0035399B
Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B
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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 .