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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Peugeot Boxer Citroen Relay 4H03 TMF 130HP Engine Control Module ECU 9691854880
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Mercedes R171 Air Module SRS Control Unit Crash Sensor ECU A1718207326
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Ford Transit Mk4 Starter Motor Engine Actuator Diesel 92VB-11000-BA
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Electronics Charging Module BMW E81 E87 E90 Hands Free Charging MULF 6969268
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Audi A3 8P Starter Motor Engine Diesel Actuator Unit 02A911023 LRS00791
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BMW E90 E91 LCI N47N 320d 184HP Engine Control ECU Kit DDE 8518269 + CAS3 + Keys
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Mercedes W176 180 CDI OM607 Engine Control Unit Module ECU 237101754R Automatic
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Mercedes C209 220 CDI M646.966 150HP Engine Unit ECU A6461506479 Automatic
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BMW Z4 E85 Body Control Unit Module GM5STAR12 LOW 6963038
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + Key
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Mini Cooper S JCW R56 N14 1.6 211HP ECU Kit DME CAS3 Key 7590857 Manual
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Mercedes W164 Diesel OM642 Engine Wiring Loom Harness Cable A6421500856
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Mercedes W903 Diesel Engine Alternator Generator 45-90A 14V A0101540802
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BMW X5 E70 Telematics Bluetooth Control Unit Module ECU Continental 9205930
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Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045455401
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Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6C1T-10300-CC
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Mercedes-Benz M-Class ML W163 Pressure Regulation Valve Fuel A6110780149
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Mercedes-Benz M-Class ML W163 Fuel Pump Bracket Holder Housing A6110920140
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Mercedes-Benz M ML W163 OM612 Engine Wiring Harness Loom Cable A1635402810
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Citroen C4 Peugeot 407 3008 Alarm Anti-Theft Siren Module Unit 9657384680
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511507386
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Radio MP3 Player Renault Trafic Vauxhall Vivaro Head Unit Bluetooth 281155093R
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Renault Trafic III Vauxhall Vivaro B Positive Battery Cable Lead Wire 240809677R
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Ford Transit MK7 Diesel Engine Wiring Cable Harness CC1T-12B637-BAE
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BMW X5 E70 3.0d M57N2 235HP Engine ECU KIT DDE 7809944 CAS3 + Key Automatic
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Bumper Reflector Renault Trafic III Vauxhall Vivaro B Rear Light 7700353184
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BMW E81 E87 LCI N43 116i 2.0 122HP ECU Control Unit Kit DME 7640015 CAS3 + Keys
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Ford Transit MK7 2.2 TDCI Diesel Engine Control Unit Module ECU AC11-12A650-BA
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BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Unit DDE 7823973 Manual
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Ford Transit MK8 2.2 TDCI Diesel Engine Control Unit Module ECU BK31-12A650-BB
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BMW E60 E61 525d Diesel M57N 177HP Engine Control ECU Kit Module DDE 7794650
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Mini One D R50 Diesel W17 88HP Engine Control Unit ECU DDE 7799152 Manual
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Engine Control Unit Peugeot Partner B9 Module ECU 9HN 1.6 Diesel 9807885980
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Volkswagen VW Polo 9N Negative Battery Terminal Ground Cable Wiring 6Q0971235
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Ford Transit MK6 2.4 TDDi Diesel Engine Control Unit ECU Manual 6C11-12A650-AK
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Ford Transit Connect 1.8 TDCi Engine Control ECU Module Manual 7T11-12A650-HE
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Peugeot Partner Citroen Berlingo Mk2 Wiring Cable Loom Diesel Engine 9803029180
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Audi A4 B7 1.9 TDI Engine Control Unit Module ECU 03G906016JA Manual Gearbox
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207226
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SAM Module Mercedes Sprinter W906 Fuse Box Relay Control Unit A9069006701
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Mercedes W169 PDC Parking Sensor Distance Control Module Unit ECU A1695455332
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Ford Transit Mk7 Handbrake Wiring Cable Battery Wire Cabling 6C1T-14K076-CC
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BMW X5 E53 Navigation System Sat Navi TV Video IBUS Module Unit 6968041
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Blind Spot Sensor BMW G30 G31 G11 Lane Change Warning Module Unit RS-01 6890434
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BMW G20 G21 G30 G11 X3 G01 X5 G05 Fuel Pump Control Unit Module ECU 7490824
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Air Module Mercedes W639 W906 Control Unit ECU A9064461142
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Alternator Generator Peugeot 207 Diesel 12V Electrical Unit 9646321780
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Renault Trafic Vauxhall Vivaro 1.6 dCi Diesel Alternator Generator 231008633R
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715451001
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Peugeot 207 Partner 1.6 HDI Alternator Generator Support Bracket 9684613880
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Mercedes W169 W245 M266.920 95HP Engine Control ECU Kit A2661539779 Manual
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Peugeot 207 1.6 HDI Diesel Glow Plug Wiring Loom Cable Wiring 9671583580
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BMW E90 320si 173HP N45 Petrol Engine ECU Kit DME 7560955 + CAS2 + 2 Keys Manual
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VW Polo Petrol Engine Control ECU Manual Siemens 5WP1630440 03E906033
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Mercedes CLK C209 Body Control Module Unit A2098205926
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VW Golf 3 GTI 2.0 16V ABF 150KM Petrol Manual Engine Unit Module ECU 037906024BE
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VW Polo 9N Battery Terminal Fuse Distribution Cable Cover Power Board 6Q0937517
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VW Polo 9N Seat Body Control Comfort Unit Module BCM Convenience Unit 6Q1937049B
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Chrysler Grand Voyager Diesel Engine 2.8 CRD Starter Motor 04801516AA
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Volkswagen VW Passat B5 TDI Diesel Engine Starter Motor Actuator 068911024G
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Peugeot 207 1.6 HDI Diesel Engine Starter Motor Engine Unit 9646679980
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Ford Focus Diesel Engine Alternator Generator Engine Unit 8V21-10300-AB
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Volkswagen VW Golf V TDI Diesel Engine Starter Motor 022911023F
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Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit 1K0035186R
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Radio CD Player VW Volkswagen Golf 5 Passat B6 Head Unit MP3 RCD 300 1K0035186AF
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BMW X5 E53 6-disc CD Changer Control Unit Module With Magazine 6977766
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Renault Trafic III Vauxhall Vivaro B Relay 4-Pin Blue Electrical Unit 252300973R
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Nissan Qashqai Diesel Engine Starter Motor Actuator Starter 23300JG70A
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Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
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Mercedes W901 OM602 Ignition Lead Electrical Cable Harness A9015407309
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Ford Transit MK7 Fuse Box Body Control Module ECU BCM Unit 8C1T14A073BG
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Renault Trafic 3 Vauxhall Vivaro B Body Control Module ECU BCM T4 L4 284B18533R
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BMW E81 E82 E87 LCI E88 123d N47S 204HP Engine Unit ECU DDE 8512500 Manual
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Alternator Generator Mercedes W415 OM607 Diesel Engine 150A 14V 231004554R
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Navigation Head Unit BMW E81 E87 E90 LCI Car Computer Sat Nav CIC 9273188
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Fiat Doblo Positive Battery Cable Lead Wire Electrical Cable 51871154
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Alternator Generator Mercedes W169 W245 OM640 Diesel Engine 150A 14V A6401540402
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Ford Transit MK7 Radio 6000 CD Player Stereo Head Unit 6C1T18C815AJ
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BMW 1 3 X1 E81 E82 E84 E87 E90 E91 E92 2 Radio Business CD Audio Player 9177209
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BMW E81 E87 E90 E91 E92 E93 Radio CD Player Professional Control Unit 9231931
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Volkswagen VW Golf V 1.6 TDI Diesel Engine Starter Motor 022911024K
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BMW X6 Series E71 Aerial Antenna Amplifier Diversity 868 MHZ 9130157
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Ford Mondeo Mk4 Battery Terminal Cable Wiring Connecting 8G9T-14A280
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BMW E39 6-disc CD Changer without Magazine 6908948
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Ford Transit Engine Starter Motor Actuator Starter CC1T14000AB
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Peugeot 308 1.6 HDi Diesel Engine Wiring Cable Loom Harness 9671135480
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BMW E60 E61 CIC Professional Navigation System Controller Head Unit 9214925
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Mini Cooper F54 F55 136HP Petrol B38 Engine ECU Kit DME 8654460 + BDC + Key
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Ford Transit MK6 2.4 Diesel Engine Alternator Generator 4461712
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Mini R55 R56 R57 LCI R60 R61 Navigation Head Unit CHAMP 2 Sat Nav DAB 9311113
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Renault Master 2 Opel Vauxhall Movano A 2.5 DCI Engine Starter Motor 7711134330
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Seat Module Mercedes W203 CLK W209 W211 Front Memory Control Unit A2118704726
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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 .