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. 3457579
Fuse Box Mini Cooper R57 Cabrio High SPEG PL3 DC/DC H4 Distribution 3457579
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Ford Transit Connect Battery Cable Engine Wiring Harness Loom KV6T-14B060-AAF
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Hands Free Bluetooth Module BMW E81 E87 E90 E91 Electronics MULF2 9204545
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Mercedes W204 Radio Player Audio 20 Navi CD Player Head Unit A2049006003
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BMW F34 320IX N20 245HP Engine Control ECU Kit Module DDE 8626172 FEM Key
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Mercedes Sprinter W907 Fuse Box Battery Relay Gruner A0009824823
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BMW F30 320iX N20 ECU Kit Engine Control Unit DME 8606306 Key FEM Automatic
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Audi A3 8P 1.4 TFSI CAXC 125HP Engine Control Unit ECU 03C906016S Manual
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BMW X3 F25 Battery Cable Wire Lead Positive Terminal 9243644
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Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter A0001139065
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Mini Cooper S R56 LCI N18 1.6 184HP ECU Kit DME + CAS3 + Key 7648190 Manual
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Mini Cooper R50 R52 Control Unit Module Lever Gearshift Automatic Gearbox
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Mercedes W213 OM656 Diesel Engine Wiring Guide Cable Duct A6561593100
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BMW F80 M3 F82 M4 Wheel Accelerator Sensor Cable Rear Axle Suspension 7850599
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Part no. 7527610-8
MINI One R50 1.6 W10 90HP Engine ECU Kit DME 7527610 EWS Key Automatic
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Part no. 6799676
Control Unit BMW F01 F02 F07 Air Suspension Control Module ECU 6799676
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Part no. 7790220
BMW E39 525d 530d E53 3.0d M57 Basic DDE Control Unit DDE 7790220 Automatic
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Part no. A2721533391
Mercedes R171 272.963 SLK350 272HP Engine Module ECU A2721533391 Automatic
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Mercedes S211 W211 Fuse Box Unit Cover Front A2115400082
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BMW F10 F11 530d N57 245HP Engine Control Unit ECU Module DDE 8510643 Automatic
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BMW E92 Telematics Bluetooth Control Unit Module 9205930
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Mercedes ML W163 Windscreen Rain Light Sensor Control Module A1638201126
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Part no. 8X0959792H
Audi Q3 8U Door Module Front Door Left N/S Control Module 8X0959792H
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Audi Q2 GA Impact Crash Control Sensor Module ECU 3WA959354
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Mercedes W169 A150 M266.920 95HP Engine ECU Kit Key Lock A2661536379 Automatic
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Part no. 8K0959663F
Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
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BMW E93 Convertible Rear Bumper PDC Cables Wiring Loom Set 9133625
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Part no. A2479001210
Mercedes W907 Central Multimedia Navi GPS Control Head Unit ECU A2479001210
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Part no. A1635460141
Mercedes-Benz M ML W163 Battery Positive Cable Wiring Connector A1635400269
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Mercedes SLK R172 Radio CD Player Sat Nav Comand Head Unit A1729006609
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Part no. AG9T-14324-UC
Battery Cable Ford S-Max Negative Lead Wiring Harness Cable AG9T-14324-UC
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Part no. A6421540502
Alternator Generator Mercedes W164 OM642 180A Electrical Unit Diesel A6421540502
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BMW E60 530i E90 330i N52 258HP Engine Control Unit ECU DME 7561684 Automatic
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Part no. 3C0907503-1
Audi S7 4G8 Front Lamp Headlight Level Sensor 3C0907503
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Part no. RHD-8T2035666JX
Audi Q5 8R Sat Navi Stereo Radio Audio MMI Head Unit CD Player 8T2035666F
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Part no. rhd-7801103-1
BMW 3 Series E90 E91 E92 325D M57N2 Diesel Manual Engine Wiring Loom Harness
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Part no. 6R0971349BK
Audi A1 8X 1.4 TFSI CAXA Alternator Wiring Harness Cable Loom 6R0971349BK
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Part no. 8X0959793D
Audi A1 8X Driver Side Door Module Front Control Unit Module ECU 8X0959793D
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Part no. 3Q0907530AL
Audi Q3 RSQ3 F3 A1 MK2 Gateway Control Unit Module ECU GW MQB High 3Q0907530AL
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Part no. 7629130-1
BMW E90 E91 E92 LCI 335i N55 306HP Engine ECU DME Kit CAS3 + Key 7629130 Manual
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BMW 5 E60 E61 Front Left Door Wiring Loom Harness Passenger Side 9142918
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BMW F10 LCI Bluetooth Control Unit Module Bracket Holder Mount 9174271
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BMW E81 E87 E90 E91 E92 LCI Radio CD Professional DAB Unit 9289118
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Part no. 7545046-3
BMW 1 3 Series E87 E90 N45 116i 316i Petrol ECU Kit DME CAS 2 2 Keys 7545046
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Footwell Module BMW E88 Light ECU PL2 FRM3R Lear 9263795
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BMW 1 Series E81 Footwell Light Module Control Unit ECU NSW PL2 FRM II 9197175
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Part no. 04L903017E
Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E
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Part no. HALFORDS-56AH
Halfords Essentials 12V Lead Acid Car Accumulator Battery 56Ah 480A HB027
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BMW 3 Series E46 Relay Control Unit Module Bracket Holder 61358371312 8371312
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Part no. 9147212
Key Reading Module BMW E87 E90 E91 ECU Control Unit CAS 3 9147212
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Part no. 0AM911023N
Audi A3 8V 1.4 TFSI Petrol Starter Motor Engine Actuator Unit 0AM911023N
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Part no. 8507918
BMW F20 F21 N47S1 Engine Wiring Harness Injector Module Loom Cable 8507918
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Part no. A2055457540
Mercedes W205 C238 X253 W213 Inner Firewall Contact Support A2055457540
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Part no. A1729007600
Seat Module Mercedes W204 Front Right O/S Memory Control Unit A1729007600
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Part no. 7550688-4
BMW E87 E90 116i 316i N45 1.6 116HP Petrol ECU KIT DME CAS2 Key 7550688
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Part no. 8636068
Engine Wiring BMW F20 120i F30 320i 330i LCI B48 Cable Loom Harness 8636068
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Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2044401001
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Part no. 9875932
Head Unit Mini F56 BMW F21 LCI Radio Media Player Basic Navigation 2 ECE 9875932
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Part no. 9869879
Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9869879
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Mercedes W907 314CDI OM651.958 Engine Control Unit ECU A6519007103 Automatic
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BMW Z4 Series E85 Roadster Electric Steering Column Servo Unit Manual Gearbox
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Part no. 8625241-1
BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8625241 + FEM + Key
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Part no. 6982115
Mini R52 Cabrio Body Control Unit Basic Module BCM 6982115
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Part no. 5A1FC41
BMW X3 X4 G11 G30 G31 G32 G01 G02 Air Module Control Unit ECU SRS Module 5A1FC41
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BMW F20 F30 F32 LCI 118d 318d B47 Engine Control ECU DDE Kit 8598759 Automatic
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Part no. A2731536591-1
Mercedes W221 S500 4-Matic M273.968 Engine Control Unit ECU Kit A2731536591 Key
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Part no. A2479007312
Mercedes W212 Suspension Module Adjustment Control Unit Controller A2479007312
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Part no. 4F5035225AJ
Audi A6 C6 Aerial Antenna Amplifier Right O/S FM Booster Unit 4F5035225AJ
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Part no. Halfords 95Ah Acid Accumulator
Halfords 12V Lead Acid Accumulator Battery 95Ah 800A HB019
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Part no. 8371011
BMW X3 Series E83 Cover Positive B Battery Terminal Point Case 8371011
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Part no. 6943441
BMW X3 E83 Radio Navigation System CID Control Unit CD Player 6943441
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Part no. 7100408-1
BMW G01 LCI 20dX Diesel B47D Engine Control Unit ECU Kit 7100408 Key BDC
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Part no. A2059001419
Mercedes W205 GLC X253 Air Conditioning Climat A/C Control Module A2059001419
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Mercedes CLC CL203 Wiring Loom Cable Door Front Left Right N/O/S A2034400033
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Part no. 7556880
Engine Wiring BMW Z4 E85 E86 Petrol N52 Loom Harness Module Manual 7556880
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Part no. 9273188-1
Navigation Head Unit BMW E81 E87 E90 LCI Car Computer Sat Nav CIC 9273188
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Part no. 8V21-10300-AB
Ford Focus Diesel Engine Alternator Generator Engine Unit 8V21-10300-AB
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Part no. 6927931
BMW 5 6 Series E60 E61 E63 E64 Control Unit Module CAS 2 CAS2 6927931
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Part no. A6079002200-3
Mercedes W176 A180 CDI OM607.951 109HP Engine Unit ECU A6079002200
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Part no. 02M911023A
Starter Motor Volkswagen VW Golf IV Bora Sharan Diesel Engine 02M911023A
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Part no. 89393773
Audi Q7 4L Headlight Module Ballast Control Unit 89393773
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Part no. A2129005712
Mercedes W204 Front Fuse Box Relay Module Sam Control A2129005712
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Part no. 8K0959792N
Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N
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Audi A5 8T 3.0 TDI CLAB Diesel Engine Starter Motor 059911021K
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Part no. 7513983-1
Mini Cooper R50 Engine W10 116HP Engine ECU Kit DME 7513983 EWS Key Automatic
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Part no. 4L0907553E
Audi Q7 4L Air Suspension Adjustment Module Control Unit 4L0907553E
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Part no. 1025-27
BMW X3 E83 GPS Navigation Display Screen Android Auto CarPlay 10,25" 1025-27
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Part no. 9866981
BMW 1 Series F20 REM Rear Electronic Module Fuse Box Control Unit V4 9866981
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Part no. 9235506
Bracket Harman Kardon BMW F30 F31 Amplifier Holder Mount Unit Module 9235506
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Part no. 1722094
Battery Cable BMW E36 E46 M43 M57 Starter Alternator Wiring Harness 1722094
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Part no. A2761509875
Mercedes W213 W222 A238 M276 Starter Screening Plate Shield A2761509875
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Part no. 6918780
BMW 7 Series E65 Cable Harness Door Rear Right O/S Wiring Loom 6918780
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Part no. 6941592
BMW 5 E60 Light Control Module Unit Lear LME6X MAN LWR LCM Delphi 6941592
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Part no. 3456034-2
Footwell Module Mini R56 Cooper Light LOW EKS ECU PL3 FRM3R Lear 3456034
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Part no. 6317177
BMW F20 F22 F30 F32 REM Rear Electronic Module Fuse Box Control Unit V5 6317177
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Part no. 8606777-1
BMW F30 320iX N20 ECU Kit Engine Control Unit DME 8606777 Key FEM Automatic
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Part no. 06F906056FQ
Volkswagen Golf Mk5 1K 2.0 GTI BWA 200HP Engine ECU Kit + Key 06F906056FQ Manual
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Part no. 8625068-2
Mini One R56 LCI R58 N16 1.6 98HP Engine ECU Kit DME 8625068 CAS 3 + Key Manual
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Part no. 7574544-4
BMW E90 E91 E92 N52N 325i 218HP ECU Kit DME 7574544 CAS3 Key Automatic
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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 .