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 E90 Light Control Footwell Module ECU MAX Brose FRM3R PL2 Lear 9390491
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Peugeot 3008 Body Control Comfort Unit Module BSI Fuse Box 9675877980
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VW Volkswagen Polo 6R Negative Battery Terminal Cable Wiring 6C0971235A
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BMW 5 6 X3 X5 Series E53 E60 E61 E63 E83 Cigarette Lighter Socket 6973036
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BMW F07 F10 F11 Speakers Amplifier Bracket Holder Mount Unit Module 9174269
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BMW X3 E83 LCI Battery Positive Lead Red Cable Plus Pole Wire 3414878
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Mercedes W164 W169 W211 W245 Disc CD Changer A2118706189
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BMW F20 F21 F22 F30 F31 Head Unit Basic Media Navigation Headunit 9399427
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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Audi A1 8X Air Module Sensor Control Unit Module 8X0959655A
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Mercedes Viano Vito W639 Wiring Harness Tailgate License Plate Lamp A6394404809
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Audi Seat Skoda Volkswagen 1.4 TSI Petrol Alternator Generator Valeo 04E903023K
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BMW E90 ECU Body Control Module ECU H1 61359134479 9134479
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BMW 1 3 Series E81 E87 E90 E91 1 Radio BMW Business CD Player 9141682
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BMW 5 6 Series E60 E61 E63 E64 Power Steering Speed Sensor 6774039
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Alternator Generator Mercedes W204 W207 W212 Engine Diesel 180A 14V A0009067702
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BMW 5 6 Series 1 E60 E61 E63 E64 Battery Cable Holder Mounting B Base 6932006
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Starter Motor Mercedes W639 W906 Diesel Engine A0009062302 0986024530
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Audi A6 C6 Comfort Body Module Fuse Relay Box Control Unit 4F0907289J
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Mercedes W205 W213 Engine Wiring Harness Cable Loom M274 Petrol A2741504703
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Mini Cooper R55 R56 N12 1.6 120HP ECU Kit DME + CAS3 + Key 7600020 Automatic
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Ford Transit Mk6 Starter Motor Engine Actuator Diesel 2.4 TDCi YC1U-11000-AF
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Part no. 7550469-1
Alternator Generator BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Petrol 180A 7550469
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Alternator Generator Mercedes W221 OM642 Diesel Engine 220A A0131540602 11304N
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Engine Wiring Harness Mercedes W204 M271.820 Petrol Loom Cable A2711508833
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BMW E87 LCI E90 118i 318i N43 Petrol ECU Engine Control Unit DME 7579142 Manual
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Radio Player Mini F55 F56 CD Bluetooth DAB Alpine Control Unit Module 9344050
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BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key
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Mercedes W205 Adblue Module Exhaust Gas Control Unit ECU BlueTEC SCR A0009006706
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BMW F20 F21 F22 F30 F31 LCI Head Unit Media DAB Navigation Professional 8804457
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Mercedes SLK R171 Fuse Box Rear SAM Relay Control Unit Module A1715451901
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Engine Wiring Mercedes W169 W245 OM640 Cable Loom Harness A6401502433
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Peugeot 3008 1.6 HDI T84 DV6-C Engine Control Unit Module ECU 9675391480 Manual
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Mercedes GLE C292 ML W166 Door Control Module Rear Left N/S A1669006307
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Mini Cooper S R56 N14 1.6 174HP ECU Kit DME CAS 3 Key 7610009 Manual
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Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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BMW E60 E61 LCI X5 E70 X6 E71 X3 F25 Rain Light Solar Sensor 9122432
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Mercedes R171 W203 W211 Phone Adapter Contact Plate Holder Telephone A2038201411
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Mercedes W203 W211 Central Gateway Control Unit Module ECU
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Volkswagen Golf CD1 Alternator Engine Generator Valeo 05E903018G
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BMW 1 Series e81 BODY CONTROL MODULE L2 61356968836 6968836
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Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S
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Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q
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Audi A3 8V Body Control Comfort Unit Module BCM Unit ECU 5Q0937084AJ
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Whelen Euro-1 Vehicle Siren Amplifier Booster Module 200W 16A 01-086A664-01
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Audi Q3 8U PDC Assistance Parking Distance Control Module Unit ECU 8X0919475N
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Audi A8L 4H TV Tuner Digital Video Control Module 4G0919129C
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568
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Radio Panel Mercedes W176 W242 W246 Radio Multimedia Switch Control A2469009412
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Part no. 8517616
Earth Ground Cable BMW F10 N47N Diesel Battery Cable Engine Wiring 8517616
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Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Lucas LRA02970
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BMW F30 F32 320d Engine Module Control Unit ECU DDE ed 420d N47N 163HP 8582279
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Audi A1 8X Negative Battery Terminal Earth Cable Lead 6C0915181B
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Mini Cooper F55 F56 Control Unit Module Active Sound Design Amplifier 6827161
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65124154935 4154935
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Part no. 9204524
BMW 1 Series E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9204524
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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718207026
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Part no. 7809944-6
BMW X5 E70 3.0d M57N2 235HP Engine ECU KIT DDE 7809944 CAS3 + Key Automatic
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BMW 1 3 5 Series E60 E61 E87 E90 E91 M47N2 M57N2 Starter Motor 7798035
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Mini F55 F56 Cooper D B37 Diesel Engine ECU Kit DDE 8582719 BDC + Key Manual
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Audi A6 S6 C6 Body Comfort Module Convenience Control Unit 4F0907289J
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Fiat Doblo 1.9 JTD Engine Ignition Coil Wiring Harness 1439207
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Renault Master III Vauxhall Movano B 2.3 DCi Diesel Starter Motor 233003407R
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Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456987
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BMW E87 E90 Navigation System Professional CCC Navi Controller 6987692
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Peugeot 206 2.0 HDI Diesel Engine Starter Motor 9827007180
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Audi Q7 4L 3.0 TDI Quattro Engine Starter Motor Actuator Starter 059911024H
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Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D
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Mercedes W205 C205 BlueTec OM651.921 Engine Control Unit ECU Kit A6519000603 Key
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Mercedes W204 Wiring Loom Cable Harness Door Front Left N/S A2044400605
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Audi A3 8P 1.6 MPI Ignition Wiring Loom Harness Set 06A905409P
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9257200
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Mercedes W211 W219 Radio CD Player COMAND Sat Navigation Head Unit A2118203297
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Earth Ground Cable Mercedes Vito W447 Negative Battery Lead Wiring A4479050104
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YAW Rate Sensor Mercedes W203 W209 R171 Accelerator Speed Module A0045429218
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BMW 3 6 X3 Series E46 E63 E83 MINI R50 R53 Control Unit Xenon Light 1307329074
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Fuse Box Mercedes Sprinter W907 Prefuse Box Module F150/1 - MFB-1 A9075406960
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BMW E60 E61 E81 E87 LCI E90 E91 E92 E93 Alternator Petrol 180A 7550469
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BMW F10 F12 F13 M5 M6 S63N 560HP ECU Control Unit Module DDE 7633959 Twin-Clutch
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 65126939664 6939664
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BMW 1 3 Series E81 E90 LCI Business System Car Infotaiment Computer CIC
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BMW 3 X1 Series E84 E91 E91N LCI Control Unit Sliding Lifting Roof 6955927
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BMW E60 525i E90 E91 325i N52 Engine ECU Kit DME 7559178 CAS2 + Key Automatic
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Renault Trafic Opel Vivaro Diesel Starter Motor 8200568535
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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 .