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. 9329800
BMW 3 E91 ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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Audi A1 8X 1.4 TSI CAXA 122HP Engine Control Unit ECU Kit 03C906016BG BCM + Key
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BMW E60 E61 E63 E64 Body Gateway Module KGM LOW
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Audi A6 C7 Front Seat Control Module Unit Right O/S 4G8959760
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Mini Cooper R56 Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655L
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BMW F87 LCI M2 370HP N55 Engine Control Module Unit ECU DME 8693361 Automatic
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Head Unit BMW F20 F21 F22 F30 F31 LCI Sat Nav Radio Media Navigation 8708257
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Wiring Mercedes W176 W242 W246 C117 Petrol M270 Engine Harness Loom A2701501533
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BMW 7 Series E65 E66 E67 Sensor B-Pillar Airbag Right O/S 6970894
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Audi Q7 4M Alternator Mass Cable Wiring Harness Loom 4M0971228CH
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Mercedes C205 Fuse Box Relay Control Unit Module A0035421819
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Renault Trafic II Vauxhall Vivaro A 2.0 DCI Alternator Generator 8200404459D
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BMW E90 E91 E92 330d M57N2 231HP Engine ECU KIT DDE 7809944 CAS + Key Automatic
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Part no. 3455440
MINI Cooper One R56 PL3 SPEG H5 Fuse Distribution Box 3455440
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Gateway Control Unit Mercedes W204 W212 Gateway Module ECU VST A2129001227
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Immobilizer Antenna Ford Transit MK8 Control Module Unit BK2T15607AC
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Fuel Pump Module Mercedes W207 C207 A207 Control Unit ECU A2129000406
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Engine Wiring Mini R55 R56 N12 Loom Harness Injection Valve Ignition 7585946
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Seat Ateca Door Module Control Unit Front Passenger's Side Door 5Q4959592K
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BMW X3 E83 LCI Battery Positive Lead Red Cable Plus Pole Wire 3414878
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Volkswagen VW New Beetle 1.9 TDI BSW Engine Unit ECU Kit 038906019NN Key Manual
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Mini Cooper Countryman R58 R60 R61 Aerial Roof Antenna Base Module 9803846
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BMW E90 Max Brose Footwell Light Module Control Unit ECU 9340339
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Mercedes W203 Fuse Box Rear SAM Module Relay Control Unit A2035450701
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Part no. 6948351
BMW E60 M-Audio System Controller Navigation Head Unit 6948351
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BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9230448
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Part no. 8506951-2
BMW E60 LCI E90 325d 525d M57N2 ECU Kit Basic Control Unit DDE 8506951 CAS3 Key
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Mercedes W212 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2128205313
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Part no. 1406067
Alternator Ford Transit MK2 Sierra Scorpio 2.0 Engine Generator 1406067
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Part no. 7605478
BMW 1 3 Z4 Series F20 F30 E89 Petrol Alternator 170A 7605478
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Part no. A0045429118
ECU Module Mercedes W169 W211 W245 Yaw Rate Sensor Unit ESP A0045429118
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Module Mercedes W177 W247 Instrument Cluster Control Module A2479001608
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Mercedes SLK R171 Center Console Arm Rest Wiring Loom Harness A1715409333
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Part no. 7613226-4
Mini R60 ALL4 N18 184HP Control Unit ECU DME Kit 7613226 + Key + CAS3, Manual
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BMW X6 71 Amplifier HiFi Stereo System Sound 9312471
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Part no. RHD-7807198
BMW 5 SERIES E60 E61 LCI 520d N47 Engine Wiring Loom Harness DDE Manual 7807198
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Part no. 8382453
BMW X3 E83 X5 E53 E38 E39 E46 EWS 3 Central Lock Immobilizer Module ECU 8382453
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BMW 1 3 5 6 Series E60 E63 E81 E87 E90 E91 Housing E-Box Fan Blower Motor
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BMW E60 E61 E63 Control Unit Gateway Module ECU 6975686
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Negative Battery IBS Cable BMW X5 F15 M F85 X6 F16 M F86 Terminal Wiring 6819309
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Fuse Box Mercedes W211 CLS C219 Front SAM Control Unit Module A2115457701
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ECU Kit Mini One R55 R56 R57 N12 95HP DME 7589971 + CAS3 + Key Manual
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Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P
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Audi A6 A8 Q7 CAN Bus Jumper Contact Bridge Connector 4E0941817
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Audi A3 8Y A4 B9 A6 C8 Alternator Bracket Mount Holder 2.0 TDI 05L903143
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BMW Z4 Series E85 M54 Wiring Loom Harness Engine Ignition Module 7537281
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BMW X5 Series E53 Light Check Module Control Unit ECU Lear LCM III 6905875
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BMW Z4 E86 Coupe 3.0si N52 265HP ECU Kit DME 7571510 EWS + Key Manual
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Mercedes W906 313 CDI OM651.955 129HP Engine ECU Kit A6519002600 Key Lock Manual
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BMW 3 F30 LCI 330e B48X Hybrid High Voltage EKMV Wiring Cable Wire 6824109
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BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465
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Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502
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Mercedes-Benz S W221 Valve Block Air Suspension Control Unit Module A2123200358
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Mercedes Sprinter W906 Radio Stereo Audio Head Unit A9068201589
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Mercedes W164 W212 Alarm Sensor Warning Buzzer Module Unit A1648220230
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Mercedes W124 S124 Ignition Engine Control Unit Module A0155457032
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Audi A7 S7 4G 4.0 TFSI Petrol Engine Alternator Generator 079903015P
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Mercedes-Benz C-Class W203 Fuse Box Control Unit Module SAM A2035452901
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Part no. 06F903023P
Audi Volkswagen Seat Skoda Engine Alternator Generator 2.0 TDI CAGA 06F903023P
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Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU Kit DME CAS 2 2 Keys 7545046
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Part no. 9120798
BMW 5 Series E60 E61 LCI Right/Left Rear Door Wiring Loom 9120798 N/O/S
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Part no. 2K0035279C
Volkswagen Tiguan 5N Sat Navi Stereo Radio Audio Head Unit CD Player 2K0035279C
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Part no. 7810909-1
Mini Cooper D R55 R56 Diesel W16 1.6 ECU Kit DDE 7810909 CAS3 + 2 Keys Manual
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Part no. 8510643-1
BMW F10 F11 530d N57 245HP Engine Control ECU Kit Module DDE 8510643 CAS4 Key
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Part no. 05E903026K
Volkswagen Golf Mk8 Audi Q2 GA A3 8V 8Y 1.5 TSI Alternator 14V 140A 05E903026K
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Part no. 9131782
BMW E91 Touring ECU Body Control Module H4 PL2 61359131782 9131782
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Part no. 2D0959800
Volkswagen LT 35 Door Module Central Locking System Module Unit 2D0959800
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Part no. 8U0959651
Audi Q3 8U Air Module Crash Impact Sensor Control Unit 8U0959651
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Part no. 9213187
Body Control Unit BMW F01 F10 F11 F12 Module ZGW-01 High Central Gateway 9213187
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Part no. 9344050
Radio Player Mini F55 F56 CD Bluetooth DAB Alpine Control Unit Module 9344050
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Part no. 7799854-1
BMW 1 3 Series E87 E90 M47N2 118d 318d 122HP ECU KIT DDE + CAS2 + Key 7799854
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Mercedes Sprinter W906 OM651.955 163HP Engine Unit Module ECU A6519003403 Manual
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Part no. 7798179-3
BMW E87 E90 E91 118d 318d M47N2 122HP Engine ECU KIT DDE 7798179 CAS2 + Keys
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Part no. A9075404687
Mercedes W907 Battery Cable Alternator Wiring Loom Harness Cabling A9075404687
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Part no. 6943157
BMW Mini Cooper One R50 R53 Body Control Unit Basic Module BCM 6943157
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Part no. 6975173
Bluetooth Module BMW E81 E87 E90 MULF Hands free Electronics Charging 6975173
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Part no. 9267421-2
BMW E84 ECU Body Control Module Junction Box PL2RR JBBFE IIIR 9267421
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Part no. 2153319
Audio Amplifier Mini R55 R56 Alpine Hi-Fi System Amplifier Booster 2153319
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Part no. 7580279-2
BMW E87 LCI E90 E92 120i 320i N43 170HP ECU Kit DME 7580279 CAS3 + Key Manual
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Part no. 9187544
BMW E91 LCI ECU Body Control Module H4 PL2 JBBFE Junction Box 9187544
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Mercedes W207 A207 SAM Control Unit Module Fuse Box Rear A2129004222
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Audi A5 8T Seat Module Control Unit ECU Front Left Right N/O/S 8T0959760
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BMW Z4 E85 Petrol M54 Wiring Loom Harness Engine Automatic Gerabox
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Seat Ateca FR 2.0 TDI Engine Alternator Generator Valeo 14V 140A 04L903021D
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BMW F06 F12 F13 M6 F10 M5 S63N 560HP Engine Control Module 8643126 Automatic
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BMW X5 E70 CAS3 Key Reading Module Unit Control ECU 9278746
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Part no. 7799470-1
Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
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Part no. 6976384
BMW X5 E70 Power Distribution Fuse Box Front Control Unit Module 6976384
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Part no. 8729433
Amplifier BMW F82 F87 F80 F83 Active Sound Design Control Unit 8729433
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Part no. 9241005
BMW 3 Series E90 LCI Footwell Light Control Module LCM LED Basis 9241005
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Part no. 8385232
PDC Module BMW E39 Parking Assist Distance Control Module PDC 8385232
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Part no. 6801076
Front Subwoofer BMW F90 M5 G11 G30 Central Right O/S Bass Speaker HiFi 6801076
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Part no. A4709060300
Mercedes W470 Diesel Engine Starter Motor A4709060300
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Part no. 6841420
AdBlue Adapter Cable BMW F30 F31 F36 Lead Wiring Harness Loom 6841420
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Part no. 9665580680
Alternator Citroen Berlingo Peugeot Partner Diesel 1.6 Hdi Alternator 9665580680
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Part no. A1645400072
Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
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Part no. 8E0907279N
Audi A4 B7 Body Control Module BCM Comfort Control Unit Power Supply 8E0907279N
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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 .