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. 9282420
BMW 1 3 5 Series F10 F20 F30 Reversing Camera Rear View Control Unit 9282420
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BMW U06 X1 U11 Gearbox Wiring Loom Transmission Cable 5A7A3B9
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BMW E81 E87 E90 LCI Professional Navigation Car Radio Player CIC 9273188
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BMW 1 3 Series E81 E87 E90 E91 E92 Radio CD Professional 65129132214 9132214
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Mercedes-Benz A-Class W168 Control Box Unit Cover Front A1685400082
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Mercedes S212 Estate Fuse Box Rear SAM Module Relay Control Unit A2129004201
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Volkswagen Golf 7 1.6 TDI CLHA 105HP Engine ECU Kit 04L907309B Key + Ignition
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Key Reading Module BMW E60 E87 E90 CAS 3 ECU Control Unit 6943830
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BMW F10 F11 Head Unit Basis Media Navigation System Controller Headunit 9226365
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Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
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Telematics Module BMW G11 G20 G30 Bluetooth Telephone Control Unit 2622589
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Audi A4 B7 Door Wiring Harness Loom Front Cabling 8E1971029AA
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Audi SQ5 8R Starter Alternator Engine Wiring Loom Cable 3.0 TDI 8R0971228BG
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Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Bosch LRA02970
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Audi A6 C6 6-Disc CD Changer Magazine Head Unit MMI 6946989
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BMW 7 Series E65 E66 Dashboard EXCH Control Display Screen 8,8" 6960096 9110639
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BMW E60 E65 E70 E81 E87 E90 F10 Engine Starter Motor 2354701
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Mercedes W221 Fuse Box Front SAM Module Relay Control Unit A2215402862
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BMW X1 E84 2.0dX N47 177HP Engine ECU Kit DDE 8510591 CAS3 + Key Automatic
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Mercedes W202 Central Locking Vacuum Pump Control Unit A2028001448
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BMW E93 Audio Radio Sound Amplifier Unit HIFI System Lear 9246187
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BMW 3 Series E90 320si 173HP DME 7560955 Petrol N45 ECU Kit CAS2 + Key Manual
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Mini One D R50 Diesel W17 88HP Engine Control Unit ECU DDE 7799152 Manual
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Audi A3 8P 2.0 TDI 170HP BMN Engine Control Unit ECU 03G906018DN Automatic
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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BMW E81 E87 E90 LCI Professional Navigation Car Computer CIC 9283428
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Mercedes W124 S124 Central Lock Control Unit Module A1248205926
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Audi Q5 8R Negative Battery Terminal Cable Wiring Battery 8R0915181
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Mercedes W205 C300 OM264.920 Engine Control Module ECU A2649000700 Automatic
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Audi Q7 4L 3.0 TDI BUG 233HP Engine Contol Unit ECU 4L0910401T Automatic
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Door Module Mercedes W169 W245 Control Unit Front Right O/S A1699000400
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Mini Cooper One R55 Footwell Light Module ECU HIGH Lear PL3 FRM II 3452092
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BMW F20 F30 F32 120i 320i 420i N20 184HP Engine Unit ECU DME 8631725 Automatic
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Mercedes GLE W166 Wiring Harness Automatic Gearbox Cable Loom A1664403436
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Part no. 9226325
BMW 1 E82 ECU Body Control Module L1 PL2RR JBBFE IIIR Junction Box 9226325
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Part no. A2661540902
Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
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Part no. A0009007907
Mercedes W205 GLC X253 Front Radar Sensor Module Control Unit A0009007907
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Part no. 9807028750
Fuse Box Citroen Berlingo Peugeot Partner BSM Module Control Unit 9807028880
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Part no. 3456394-1
Light Module Mini R55 LCI Cooper ECU Footwell FRM3R LOW EKS Lear 3456394
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Part no. A2129009328
Door Module Mercedes W204 W212 Front Right O/S Control Unit A2129009328
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Mini Cooper One R56 Footwell Light Module High EKS ECU PL3 FRM3R 6827072
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Speaker Amplifier Audi A4 B8 A5 8T Stereo Radio Sound System Amp 8R0035223G
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Volkswagen VW Crafter Battery Lead Positive Cable Plus Pole Wiring VW9065400105
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MINI One 1.6 R50 R52 W10 90HP Engine ECU Kit DME 7545789 + EWS + Key Manual
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BMW E38 728i M52 193HP Engine Control Unit ECU Module DME 1429861 Automatic
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BMW E90 E91 E92 E93 Negative Battery Wiring Cable Minus Pole IBS Adapter 9184207
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BMW E46 Led Indicator Side Light Signal 7165845
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BMW F45 i8 X2 F39 Mini Cooper F60 Alternator Generator B38 B38X Engine 7649390
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Mercedes W221 Fuse Box SAM Relay Control Unit Signal Module Front A2219007102
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Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7314798
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BMW E61 LCI Body Gateway Module KGM HIGH 27 D-Can LEAR 9197317
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Radio Player Mini F55 F56 CD Bluetooth DAB Alpine Control Unit Module 9344050
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Part no. 9345330
BMW X3 F25 Body Control Module ECU Junction Box JBBFE III V8 9345330
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Mercedes W205 W212 W246 Parking Distance Sensor Parktronic White A0009059300
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Part no. 30729826A
Volvo V70 2.4 D5244T4 Diesel Engine Control Module ECU 30729826A Automatic
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Audi A6 C7 2.0 TDI CGLC BCM Body Control Module Unit ECU 4H0907063BN
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Part no. 3457528-1
BMW Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457528
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Wiring BMW X5 F15 M Sport Rear Park Assist PDC Wiring Harness Loom 9361150
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Part no. 6978374
Air Module Unit BMW E60 E61 Sensor Control ECU 6978374
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Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
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BMW 3 Series E46 Door Wiring Loom Harness Co-Drivers Passengers Side 8383351
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Mini Cooper R55 R56 Harman Becker Hi-Fi Audio Speaker System Amplifier 3450756
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Audi A4 S4 B9 Petrol Fuel Pump Control Unit Module ECU 4M0906093N
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Part no. 8634244
Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244
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Part no. 8073593
BMW F87 M2 N55 Engine Wiring Loom Harness Injection Valve Ignition 8073593
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Part no. A6395460121
Battery Cable Mercedes Vito W639 Negative Lead Wiring Harness A6395460121
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Part no. A2129004008
Mercedes C207 Stereo Radio CD Player Head Unit A2129004008
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Part no. 8V0907357A
Audi A3 8V Headlight Range Cornering Adjustment Control Module 8V0907357A
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Part no. 6G9N11000EC
Ford Mondeo MK4 Galaxy MK3 1.8 TDCI Diesel Engine Starter Motor 6G9N11000EC
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Part no. A2719000600
Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Mini F55 Petrol Engine ECU Control Module Unit 6821977
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Part no. 4H0906093D
Fuel Pump Audi A8 D4 Q7 4L Diesel Control Unit Module 4H0906093D
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Radio Head Unit Ford Transit Connect 6000 CD Media Player Unit 6C1T18C815AH
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Part no. 7514587-1
BMW Mini Cooper One R50 DME Petrol Engine Control Unit ECU Automatic 7514587
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Part no. 9363496
Mini F56 Module Active Sound Design Audio Control Module Harman Becker 9363496
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BMW E60 E61 Body Gateway Module KGM HIGH 9118729
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Mercedes W221 Front Camera Wiring Harness Cables Night Vision A2215409509
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Rain Sensor Mercedes SLK R172 W204 Front Windscreen Control Unit A2049017901
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Part no. 7548769-1
BMW 5 Series E60 520i Engine M54 170HP ECU Kit DME 7548769 CAS2 + Key Automatic
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Part no. 03D903025J
Seat Ibiza Skoda Fabia Volkswagen Polo Mk5 6R 1.2 Petrol Alternator 03D903025J
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£BMW E81 E87 E90 LCI 118d 318d N47 Diesel ECU Control Kit DDE 7823422 CAS3 Keys
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VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601F
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Audi A4 B7 Starter Motor Engine Diesel Bosch 0001125053
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Mini Cooper R56 LCI Footwell Light Module LOW EKS ECU PL3 FRM3R Lear 3456951
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Mercedes R172 PDC Parking Distance Sensor Control Module Unit A1729000302
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BMW F06 Gran Coupe Footwell Light Module Control Unit ECU FRM III 9345377
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BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6918780
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Audi TT 8J Radio Head Unit CD Audio Player Control Unit 8J0035186J
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Peugeot Partner Citroen Berlingo Mk2 Wiring Cable Loom Diesel Engine 9803029180
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Part no. 7620987-2
Mini R56 LCI One 55kW N16 1.6 75HP Engine ECU Kit DME CAS 3 + Key 7620987
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Part no. 7639049-2
Mini Cooper S ALL4 R60 N18 Engine Unit ECU Kit DME 7639049 CAS 3 Key Manual
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Part no. A1718200386-1
Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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Part no. 6928936
BMW 3 Series E90 E92 Antenna Amplifier Diversity TV Function 868 MHZ 6928936
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Part no. 7542529-2
BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Part no. 7810001-2
BMW E81 E87 LCI E90 118d 318d N47 143HP Diesel ECU KIT DDE 7810001 CAS3 + Key
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Part no. 04L907309B
Volkswagen Golf Mk7 1.6 TDI CLHA Engine Control Unit ECU 04L907309B Manual
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Part no. 9387265
Control Unit BMW F20 F21 F22 F30 F31 F32 F36 Module FEM ECU LR01 9387265
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Part no. A6394408637
Mercedes W639 Rear Bumper PDC Wiring Parking Sensor Loom Harness A6394408637
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Part no. 8695512-1
BMW F80 M3 F82 F83 M4 431hp Engine Control ECU Kit DME 8695512 + FEM Module 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 .