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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BMW 1 3 Series E81 E87 E90 E91 E92 6-disc CD Changer Without Magazine 6977759
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Mercedes Sprinter W906 OM646 Engine Diesel Alternator Generator A6461540002
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Mercedes-Benz C E Class W204 W207 Aerial Antenna Amplifier Unit A2048200089
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Gearbox Module Mini F55 F56 F57 Automatic Basic Control Unit EGS 8608020
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Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454A
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BMW 3 Series E93 ECU Body Control Module H3 Junction Box PL2 JBBFE II 9160190
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Starter Ford Mondeo MK3 2.0 TDDi Mk4 2.0 Tdci Diesel Engine Starter Motor
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BMW E60 LCI E90 E91 325d 525d Engine M57N2 197HP ECU Kit DDE 7806987 CAS3 + Key
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BDC Module BMW X5 F15 Body Domain Controller BDC Unit 9355750
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Alternator Mercedes W176 C117 X156 X117 Petrol Engine Generator A0009060803
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Mercedes Vito W447 Fuse Box Relay Control Unit Electric Module SAM A4479009609
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BMW F20 F30 120d 320d 184HP Engine Control Unit N47N ECU DDE 8574093 Manual
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Mercedes W169 W245 A180 B180 CDI Engine Control Module A6401507934 Automatic
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Ford Transit Fuse Box Cover Electrical Unit Housing Lid Trim Cap 6C1T-14A076-A
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Mini R55 R56 R57 R60 Gearbox Module Control ECU Automatic Unit 7619713
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Mercedes W221 Prefuse Fuse Distribution Box Unit Front A2215401250
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Mercedes W203 W209 Relay Unit Module 2 Pins White Hella A0005461366
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Mercedes A209 Fuse Box SAM Control Module Relay Box A2095451701
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Ford Transit MK7 Radio 6000 CD Player Stereo Head Unit 6C1T18C815AJ
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Volkswagen Polo 6R Engine Starter Motor Assembly Unit 0AM911023F
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Mercedes R172 Cable Beam Engine Wiring Harness Loom A1725400533
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Mercedes-Benz E-Class A207 W207 Convertible Air Module System Control Unit
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BMW 3 5 Series E60 E61 E90 330D 530d M57N2 Engine ECU KIT DDE CAS +Key 7799856
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VW Golf 5 Steering Angle Steering Wheel Column Control Module 1K0953549CA
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Key Reading Module BMW E60 E61 E81 E87 E90 E91 CAS 3 ECU Control Unit 9287535
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BMW 1 3 Series E81 E87 LCI 116i 1.6 N43 (122HP) ECU Kit DME CAS3 Key 7583225
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Mini Cooper R55 R56 Harman Becker Hi-Fi Audio System Amplifier 3450588
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Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Audi A3 8V Cabrio Folding Top Roof ECU Module Control Unit 8V7959255
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Mercedes C117 W176 A180 W246 M270 Engine Wiring Harness Cable Loom A2701501633
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Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500433
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Audi A1 8X Mulitmedia MMI Player Audio Stereo Radio Head Unit 8XA035192C
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Audi A3 8V Head Up Navigation Multimedia Screen Display Unit 8V0857273N
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Audi A3 S3 Q2 RS3 Multimedia Navigation Card Reader Head Unit 8V1035035B
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Part no. 6953773-1
BMW E60 E61 CCC CD Professional Navigation Controller 6953773 SPARES OR REPAIR
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Mercedes-Benz A B Class W169 W245 SAM Control Module Fuse Box A1699004800
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Audi A6 C6 Parking Brake Handbrake Module Control Unit 4F0907801
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Renault Trafic II Alternator Generator 120A SG12B050 8200690199
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BMW E87 E90 M-Audio System Controller Navigation Business 6965047
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BMW F20 F21 F22 F30 F31 N20 N26 N55 Petrol Engine Starter Motor 7638194
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Mini Cooper Cabrio R57 High SPEG PL3 DC/DC H5 Fuse Distribution Box 3455242
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BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver-Side 6922265
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BMW E60 E61 Front Seat Occupancy Sensor Mat 6940422
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Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
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Mercedes W176 W246 Power Relay Control Module 5 Pin 12V A0009828323 Set X2
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Mercedes Vito W447 Fuse Relay Box Control Module A4475404326
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Renault Master III DCI Alternator Support Bracket Mount 117103585R
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Ford Transit Connect Mk2 Alternator Generator 165A 1.5 Diesel JX6T-10300-KB
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Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792J
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Audi A1 S1 8X Fuse Relay Box Module Unit 6C0941824D
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BMW E60 E61 MINI R50 Rear Bumper PDC Ultrasonic Sensor Hyper Blue
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BMW E90 Max Brose Footwell Light Module Control Unit FRM3R 9263803
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Nissan Primastar X83 Alternator Generator Engine Unit 8200206251
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Audi A1 8X 1.6 TDI CXMA 115HP Engine ECU Kit 04L907309E Ignition + Key Manual
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Audi A4 S4 B9 Boot Trunk Subwoofer Rear Bass Speaker Audio Unit 8W9035382B
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BMW X5 E53 E60 E65 X3 E83 Adaptive Headlight ECU Control Unit Module 6934837
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Mercedes Sprinter W906 Door Module Front Right O/S Control Module A9069006100
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Mercedes W166 Switch Rotary Selector Controller Navigation Radio A1669003501
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Audi A3 8P Alternator Main Cable Wiring Harness Loom 1K0971349FL
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Mercedes W164 W204 Fuel Pump Module Control Unit ECU Petrol A2215401601
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Peugeot 207 CD Player Radio Stereo Head Unit 96643697XT00
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Part no. 7811701-3
BMW E81 E87 LCI E90 118d 318d N47 Diesel ECU KIT DDE 7811701 CAS3 + Key Manual
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BMW E87 LCI Light Module NSW LCM Footwell Module PL2 FRM II 9166707
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BMW 1 3 F20 F30 LCI B47 Engine Gearbox Module Wiring Cable Loom Harness 8586571
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BMW E81 E82 E87 LCI N47S 123d Engine Control Unit DDE 7809002 Manual
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Bowden Cable Mercedes W639 Rear Right O/S Sliding Door Handle Catch A6397602004
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Mercedes Sprinter W906 Fuse Box Relay Module Control Unit A9065454401
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BMW 1 3 Series E87 LCI E90 E91 N47 DDE 7811701 Engine Control Unit Diesel ECU
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Audi Q7 4L Bluetooth Module Multimedia Control Unit ECU 4E0035729A
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VW Polo Petrol Engine Control ECU Manual Siemens 5WP1630440 03E906033
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Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 240809677R
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Mini Cooper R56 LCI N16 1.6 122HP Petrol Engine ECU Kit DME 7638322 + CAS3 + Key
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Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
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Mini F55 F56 F57 Central Cover Information Instrument Radio 9354393
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Audi A4 B8 3.0 TDI CAPA Diesel Starter Motor 059911021C
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BMW E60 LCI E61 Map Fuse Box Grouping Diagram Card 9156547
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Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
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Mercedes W166 W205 W212 Rear Bumper Blind Spot Radar Sensor Module A0009058802
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Mercedes-Benz E-Class W210 S210 Battery Cable Box Connector Right A2105460241
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Engine Wiring Mercedes W906 Diesel OM651 Cable Loom Harness A6511502900
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Audi A7 4G8 BCM Body Control Module Unit ECU 4H0907063DH
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Mini Cooper Countryman R60 Fuse Distribution Box Module 9812535
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock
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BMW E60 E61 E65 E87 E90 Trailer Towing Control Module AHM 4R 9186177
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Mercedes W221 Headlining Alarm Sensor Module Cover Trim Black A2219050018
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BMW X5 E70 X6 E71 F10 F11 F12 Parking Sensor PDC Ultrasonic Black 9251944 SET X4
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Diversity Antenna Amplifier Mini F57 Convertible DAB Module Unit 9309991
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Mini Clubman R55 Footwell Light Module High EKS ECU PL3 FRM II 3452677
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BMW E46 Passenger Front Door Wiring Loom Cable Harness 6913078 6913080
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Mercedes W221 Front Camera Wiring Harness Cables Night Vision A2215409509
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Mini Cooper SD R55 R56 LCI R60 N47N Diesel Engine ECU Kit DDE 8516739 CAS 3 Key
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BMW F22 F23 Active Front Bumper Sensor Pedestrian Protection Unit 9196020
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VW Volkswagen Touareg 7L Radio Player Navigation Sat Nav Head Unit 7L6035191R
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BMW 7 SERIES E65 E66 E67 Loudspeaker Box Right O/S 6907646
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BMW E81 E87 E90 E91 E92 6-Disc CD Changer With Magazine 9196669
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Radio MP3 Player Renault Trafic Vauxhall Vivaro Head Unit Bluetooth 281155093R
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BMW E60 LCI 530d X5 E70 3.0d M57N2 235HP Engine ECU KIT DDE 8509035 CAS3 + Key
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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 .