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. 8655108-2
Mini One F54 F55 F56 B38 1.2 102HP Petrol Engine ECU Kit DME BDC + Key 8655108
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BMW 1 3 5 7 X5 X3 SERIES E46 E60 E65 E81 E87 E90 E91 E92 E93 Cap Nut Alternator
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Audi A3 8V MMI Multimedia CD Player Head Unit Infotainment 8V0035020H
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Mercedes W245 B160 M266 Engine Control ECU Kit A2661539779 Key Lock Automatic
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BMW 5 Series E61 Touring Body Control Module ECU Unit E6X KBM High 9151517
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Seat module BMW G11 G20 G30 G01 G02 Seat Control Unit Module ECU 9891562
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Amplifier Unit BMW E87 E90 E91 Top Hifi System Harman Becker Control 9121635
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BMW E46 Convertible Alarm System Sensor Anti Theft Module Control Unit 4107919
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BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Audi A3 8P A4 B7 A6 C6 Front Windscreen Rain Light Solar Sensor Unit 4E0955559B
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BMW E60 E61 LCI E90 320d 520d N47 177HP ECU KIT DDE 7811700 CAS3 + Keys Manual
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Battery Wiring Mercedes ML W166 Battery Negative Terminal Cable Wire A1665420518
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BMW X5 E70 Footwell Light Module Control Unit ECU FRM II NSW Lear 9147385
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BMW G30 Fuel Pump Controller Control Unit Module FPC High 7466895
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Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049069701
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Seat Wiring BMW E60 E61 LCI Front Left Loom Harness Passenger Side 6969214
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Mercedes W176 W246 Battery Junction Block Battery Plus Pole A2469068601
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Mount Support Mercedes Vito W639 Battery Bracket Holder Mounting A6396641914
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BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6947117
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VW Volkswagen Golf Mk7 Wiring Loom PDC Front Harness Parking Sensor 5G0971095A
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Mercedes H243 EQA350 780.200 4-Matic Engine Unit ECU A6519009702 Automatic
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BMW X5 E70 Head Unit CIC DAB Professional Navigation System Controller 9257200
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BMW E83 2.0d Engine M47N2 150HP Engine ECU Kit DDE 7808125 CAS2 Key Manual
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BMW 3 5 7 X3 X5 Series E46 E53 E60 E65 E83 M57N Starter Motor 2,0 KW 2344232
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Radio Business BMW X3 E83 Z4 E85 E86 CD Player Head Unit 4154935
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Part no. 3D0959759B
VW Volkswagen Phaeton 3D Seat Control Unit ECU Front Passenger Side 3D0959759B
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Part no. 8475350-1
BMW F20 F21 LCI 116d Diesel B37 B37D15A 116HP Engine ECU DDE 8475350 Manual
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BMW E60 E90 330i 530i N52 258HP Engine ECU Kit DME 7561684 CAS2 Key Automatic
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Part no. A0015454516
Mercedes CLC CL203 Automatic Gearbox Control Unit Module ECU A0015454516
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Mercedes W212 E63 AMG Switch Block Panel Traction Operating Unit A2129058300
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Audi TT Mk2 8J Petrol Engine Fuel Pump Control Unit Module 3C0906093C
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Mercedes C CLC Class CL203 S203 W203 Rear SAM Tray Holder Bracket A2035452301
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Part no. 7798180-2
BMW E60 E87 E90 E91 120d 320d 520d M47N2 ECU Kit DDE 7798180 CAS2 + Key Manual
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BMW 5 6 7 Series F01 F02 F10 F11 F12 Battery Earth Cable Wiring 330MM 7620950
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Part no. 02Z911023N
Volkswagen VW Golf VI Engine Starter Motor 1.6TDI 2.0 TDI Diesel 02Z911023N
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Peugeot 307 Citroen Berlingo Diesel Engine Alternator Generator 9646321880
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Part no. 5WA937086BB
Audi S3 8Y Power Supply Module Comfort Control Unit ECU 5WA937086BB
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Audi A4 B9 Front Door Control Module Unit Driver's Side 8W0959593E
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Mercedes W204 Battery Fuse Box Positive Distribution Terminal A2075401550
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Mercedes-Benz M-Class ML W163 1 Cover Footwell Fuse Box Trim Right A1636801080
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Engine Wiring Mercedes W204 W212 OM651 Diesel Harness Loom Cable A6511504633
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BMW 7 Series E65 E66 Dashboard Dash Sun Solar Sensor Speaker Cable 6910381
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Mercedes-Benz W202 C208 W208 Control Unit Bracket Holder Boot Trunk A2025458440
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Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
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Mercedes C207 Complete Damper Adjustment Control Module ECU A2049005503
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BMW 1 Series E87 Footwell Xenon Light Control Module Lear FRMFA PL2 6956587
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Part no. STAG QBOX
STAG QBOX Basic LPG CNG 4-Cylinder Control Unit Module Injection Controller ECU
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Tailgate Trunk Mercedes X117 X156 W205 Boot Rear Control Module Unit A2389053301
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Audi A7 4G8 BCM Body Control Module Unit ECU 4H0907063DH
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Part no. 7520019-11
MINI Cooper R50 W10 116HP Engine ECU Kit DME 7520019 + EWS3 + Key Automatic
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Mercedes W207 Seat Adjustment Motor Front Seat Actuator Unit 0390203330
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Mercedes-Benz Sprinter W906 Storage Compartment Box Tool Case Grey A9065800001
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BMW 1 3 Series E81 E87 E90 E91 E92 E93 LCI Radio CD Professional 9226395
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Audi TT FY 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06L971627K
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CAS2 Module BMW E87 E90 CAS2 ECU Comfort Control Unit 61356964051 6964051
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Volkswagen New Beetle 1.6 BFS 102HP Engine ECU Kit 06A906033DP Ignition + 2 Keys
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BMW F20 F21 F30 F31 118d 318d B47 150HP Engine Control ECU DDE 8473185 Manual
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BMW X3 F25 20d N47N 184HP ECU Kit Control Unit DDE 8574091 CAS4 Key Automatic
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BMW E81 E87 LCI E90 120d 320d N47 177HP ECU KIT DDE 7811700 CAS3 Keys Automatic
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BMW 1 3 Series E87 E90 E91 N46 118i 318i 120i 320i ECU DME Control Unit 7545042
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Ford Transit Connect Radio Stereo Head Unit Control Panel BK2T18K811ED
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Part no. 7801711-6
BMW E60 E87 E90 120d 320d 520d M47N2 ECU Engine Control Kit DDE 7801711 CAS2 Key
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Part no. 8791768
Basic Navigation BMW F20 F30 F32 Mini F56 F60 Radio Sat Nav Head Unit 8791768
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Part no. 7796819-1
Engine Wiring BMW X5 E53 3.0d M57N Loom Cable Harness Injector Module 7796819
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Part no. 7573029
Mini Cooper R55 R56 IBS Negative Battery Lead Cable
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Part no. 8780768
Navigation Head Unit BMW F20 F30 F31 LCI G30 Sat Nav Head Unit High 8780768
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Part no. 6814596
BMW 1 2 3 4 Series F20 F21 F30 F31 F32 Rain Light Solar Sensor 6814596
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Part no. 6947497
Battery Cable BMW E63 E64 Negative Minus Pole IBS 6947497
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Part no. 8475468
BMW G20 320d B47D 190HP Engine Control Unit Module ECU Kit DDE 8475468 Key BDC
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Part no. 9845875-1
BMW F90 M5 Competition 625HP Engine Control ECU Kit DME 8695512 + BDC Module Key
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Part no. 7584113
BMW Mini Cooper S R55 R56 R57 N14 1.6 ECU Basic Control Unit DME 7584113 Manual
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ConWys AG CFC Towing Hitch Trailer Hook Module Control Unit ECU VP128655/005/B
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BMW X3 F25 B+ Distribution Box Battery Power Red Rear Control Unit 9206140
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Part no. 2622756
Amplifier BMW F20 F21 LCI M Mini F56 HiFi Harman Kardon Audio Booster 8729433
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Mercedes W906 OM651 Glow Plug Pre Heat Relay A6511530879
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Part no. 98078859
Citroen Berlingo 1.6 HDI 9H06 Engine Control Unit ECU EDC 98078859 Manual
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Mercedes W205 Harman Radio Stereo CD Player Audio Sat Head Unit A2059004236
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Part no. 7N0035454A
VW Volkswagen Sharan Front Door Left Right N/O/S Speaker Loudspeaker 7N0035454A
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Telematics Module Mercedes W176 W205 W207 Bluetooth Control Unit A2139003617
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Fuse Box Mercedes CLK W203 W209 Front SAM Control Unit Module ECU A2035453001
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BMW 5 X3 Series E60 E61 E83 PDC Parking Ultrasonic Sensor Bluewater 6989245
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VW Volkswagen Golf CD1 Front Door Left N/S Loom Wiring Cable Harness 5H4971161LQ
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Seat Ibiza 4 6J Skoda Fabia 2 5J Battery Wire Negative Terminal Cable 6Q0971235H
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Audi Q7 4L Quattro Audio Sound BOSE Amplifier Stereo System Module 4L0035223D
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MINI One R50 Engine W10 1.6 90HP Engine ECU Kit DME 7527610 + EWS + Keys Manual
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Mercedes Vito W901 W903 Audio Radio Head Control Unit A0048201686
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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Mercedes W203 CD Media Player Radio COMAND Multimedia Head Unit A2038707189
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Part no. A1648200485
Mercedes ML W164 Door Module Front Right O/S Control Unit ECU A1648200485
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Part no. 6907123
BMW 3 Series E46 Coupe Saloon Aerial Antenna Amplifier Diversity 433MHZ 6907123
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Mercedes W211 ESP ABS Stability Control Unit Module ECU A2115404445
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Part no. 3451529
BMW X3 E83 LCI Headlamp Control Module LCM Unit ECU 3451529
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Part no. 8614276
BMW F20 F21 F30 LCI M140i 340i Alternator Generator 180A BOSCH 8614276
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Part no. YC1E10K019BA
Ford Transit MK6 2.4 Diesel Alternator Bracket Mount Support YC1E10K019BA
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Part no. 6979862
BMW 6 Series E64 Cabrio Convertible Folding Top Roof ECU Module 6979862
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Part no. A1779051006
Mercedes CLA C118 W177 Pedestrian Protection Pressure Sensor A1779051006
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Part no. 1K0955559K
VW Volkswagen Golf 5 Rain Sensor Front Windscreen Control Unit Module 1K0955559K
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Part no. 9335347
BMW F20 F21 F30 F31 Radio Player CD DAB Head Unit Audio Player 9335347
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Part no. 6956529
BMW E60 Map Fuse Box Grouping Diagram Card 6956529
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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 .