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. 6903094
BMW E46 Coupe Convertible Front Door Cable Harness Driver's Side Wiring 6903094
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Yaw Sensor Mercedes W203 W209 ESP Rotation Rate Control Unit Module A0035423918
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BMW 1 Series E81 Body Control Module L2 PL2RR JBBFE IIIR 61359267201 9267201
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Mercedes C140 Headlight Module Ballast Relay Control Unit LCM A1405420732
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BMW E60 LCI E90 E91 325d 525d M57N2 Engine ECU Kit DDE 7811151 CAS3 Keys Manual
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VW Volkswagen New Beetle Fan Control Module Relay 1J0919506K
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BMW Mini Cooper Cabrio R57 Aerial Roof Antenna Base Unit 3453890
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Mercedes W169 W245 SAM Control Module ECU Fuse Box A1699004800
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BMW i3 I01 High Voltage Energy Storage Unit Wiring Cable Wire 6809274
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Amplifier BMW F06 F13 Antenna Amplifier Diversity 868 MHZ 9346795
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Saab 9-3 1.9 Ttid Z19DTR Diesel Engine Alternator Generator 93169260
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Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 CAS3 Key Automatic
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Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932
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Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232
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Mercedes X117 CLA 45 AMG 4-Matic M133.980 Engine Control ECU Kit A2709002100
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Mercedes-Benz W210 E 320 M112 Petrol Engine Control Unit Module ECU A1121530879
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Fuse Box Citroen Berlingo Peugeot Partner Control Unit Module 28116487
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Part no. 06F903023FX
Audi A4 B6 B7 A1 8X 1.9 TDI 2.0 TDI Engine Alternator Generator 06F903023FX
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BMW X5 E70 CAS3 Control Unit Key Reading Module 6943838
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Audi A5 8T Headlight Headlamp Module Control Unit 8K0907357
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Ford Transit Mk7 Glow Plug Wiring Loom Cable Wire TDCi Diesel BK2Q6M091AD
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Audi A8 S8 D3 Electric Parking Brake Module Handbrake Control Unit 4E0907801B
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Mercedes W176 W246 Display Screen Radio Navigation Sat Nav Unit A2469007018
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Door Wiring Mercedes W176 W246 Front Passenger Side Cable Harness A2465403505
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Part no. 6823590
BMW F10 Footwell Light Control Unit Module ECU FRM III 6823590
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Part no. 8581788-1
BMW F45 F46 F55 F60 B37 B47 Engine Starter Motor 8581788
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Part no. 3450938
BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938
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Part no. 7509942
BMW E46 330i M54 231HP Engine Control Unit Module ECU DME 7509942 Manual
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BMW F20 F21 LCI 118i B38 136HP Engine ECU Kit DME Manual Control Unit 9895416
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Part no. 7801124
BMW X5 E70 Alternator Generator Engine Unit Valeo 220A 14V 7801124
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BMW 5 Series E60 Saloon M5 S85 Battery Cable Plus Pole Positive Battery 7835216
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Renault Trafic 1.9 DCI Diesel Engine Control Unit Module ECU Manual 8200051608
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Part no. A0009067703
Mercedes W213 M274 Petrol Three Phase Engine Alternator Generator A0009067703
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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. 8519668-4
BMW E90 E91 LCI 320d N47N 184HP Engine Control ECU Kit DDE 8519668 Automatic
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Part no. 8Y0959760
Audi S3 8Y Front Seat Control Module Unit Left N/S 8Y0959760
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Part no. 8S0915459A
Audi TT FV 2.0 TFSI CHHC HV Battery Power Central Distribution Point 8S0915459A
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Part no. 9873545
PDC Module BMW F40 G20 G21 Parking Assistant Control Unit Module ECU 9873545
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Part no. 079911023D
Audi A5 8T 2.0 TFSI Starter Motor Engine 079911023D
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Part no. A0325458332
Mercedes-Benz CL S C215 W220 Sam Control Module Fuse Box Unit Front A0325458332
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Part no. 7570488
Mini Cooper One R50 R52 R53 W10 1.6 Petrol Engine Starter Motor 7570488
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Part no. A2661539679-1
Mercedes W169 W245 B170 M266.940 116HP Engine Control Unit Set A2661539679
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BMW 5 Series E60 PDC Ultrasonic Parking Sensor Silbergrau Silver Grey A08
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Part no. A0061519801
Mercedes W204 W212 W251 Starter Motor 642872 Diesel Engine Starter A0061519801
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Part no. A0121544502
Mercedes W168 Alternator Generator A0121544502
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Part no. 7796125-1
BMW X5 E70 X6 E71 Alternator Generator 170A 170AMP 14V VALEO BM57N2 7796125
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Mercedes W221 Head Unit Radio Player Media Navigation DVD Changer A2218702686
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Part no. 9217878
Mini Cooper R57 R58 R60 Amplifier Control Unit Hifi Harman Kardon 9217878
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Part no. A2469067901
Mercedes C117 W176 W246 Battery Positive Plus Pole Terminal Lead A2469067901
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Part no. A0009000104
Mercedes W176 W204 W207 Fuel Pump Module Petrol Control Unit ECU A0009000104
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Mercedes-Benz Sprinter W906 Front Right O/S Door Wiring Loom Harness A9060005999
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Part no. 7823344-2
BMW F20 F21 F30 F31 F32 N47N Diesel Alternator 175A 7823343 7823344
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Part no. 3456986
Mini Countryman R60 Footwell Light Control Module LOW ECU PL3 FRM III 3456986
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Part no. 9154944
BMW E60 LCI Light Control Module Unit Controller Lear LME6X AHL 9154944
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Part no. 8J0971349CF
Audi TT 8N Alternator Main Cable Wiring Harness Loom 8J0971349CF
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Part no. 6g9n-18c815-ta
Land Rover Freelander 2 Radio Stereo CD Player Head Unit 6g9n-18c815-ta
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Part no. A0009062003
Alternator Generator Mercedes W204 W207 Petrol Engine Bosch 150A A0009062003
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Part no. A2045401307
Mercedes W204 Centre Console Lightning Dashboard Cable Wiring A2045401307
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Part no. 03L906022JM
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU 03L906022JM
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Mini R60 Cooper SD N47N 2.0 143HP Engine ECU Kit DDE 8583423 CAS3 Key Manual
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Audi A3 8P Battery Clamp Positive Plus Pole Cable Protection Panel 1K0971920
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Mercedes W124 M103 Alternator Generator BOSCH 14V 70A A0131541002
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Part no. 7936364
Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936364
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Part no. RVH000055
Land Rover Range Rover Sport L320 Air Suspension Valve Block Module RVH000055
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Part no. 2622589
Telematics Module BMW G11 G20 G30 Bluetooth Telephone Control Unit 2622589
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Part no. 06F903023HX
Volkswagen Golf Mk5 2.0 TFSI Petrol Alternator Generator 06F903023HX
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Part no. 6832699
BMW F30 LCI 330e B48X Battery Lead Negative IBS Wire Earth Cable 6832699
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Part no. 7794952-4
Starter BMW E60 520d M57N2 Diesel Engine Starter Motor 7796892
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Part no. A2139052503
Mercedes W167 W177 W205 W213 Trunk Lid Opening Sensor Control Unit A2139052503
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Part no. A2038201286
Mercedes-Benz C-Class W203 CD Player Audio Stereo Radio Head Unit A2038201286
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Part no. A2135400200
Mercedes W205 W213 W238 Fuse Box Cover Control Unit Holder Bracket A2135400200
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Part no. A0009067900-2
Alternator Generator Mercedes W204 W212 Diesel Engine Valeo 180A A0009067900
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Part no. CC1T14A073BD
Ford Transit MK7 Body Control Unit Module BCM Fuse Box CC1T14A073BD
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Mercedes-Benz A-Class W168 ESP HBA Control Unit Module ECU A1685450832
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BMW E87 E90 E91 118i 318i N46 129HP ECU Unit KIT DME CAS2 Key 7561834 Automatic
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Part no. A2048709558-1
Mercedes W204 W212 Radio Control Function Button Knob Controller A2048709558
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Part no. 03L903016A
Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
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Part no. AG9Q-10K019-AB
Ford Mondeo Mk4 Alternator Bracket 2.0 TDCi Mount Support AG9Q-10K019-AB
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Part no. A4144460153
Mercedes-Benz Vaneo W414 ESP BAS Control Unit Module ECU A4144460153
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Part no. 4L0959651
Audi A5 Q7 A6 Front Crash Impact Sensor Control Unit 4L0959651
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Part no. 6957760
BMW E60 E61 E63 Passenger Side Door Control Module 6957760
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Part no. 6965263
BMW 1 3 Series E82 E90 E92 Switch Cluster Cruise Control Stalk Unit 6965263
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Part no. A6401540402
Alternator Generator Mercedes W169 W245 OM640 Diesel Engine 150A 14V A6401540402
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Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519
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Audi S8 D3 Valve Block Air Suspension Control Unit Module 4F0616013
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Part no. 6801294
BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM3R VDM 6801294
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Mercedes S204 Fuse Box Terminal Connection Unit A2045450369
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Audi A6 C7 PDC Parking Distance Sensor Module Control Unit ECU 4H0919475Q
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Part no. 8634124
BMW F40 F45 X1 F48 Mini F55 F56 F60 Alternator Generator Denso 120A 8634124
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Part no. 3450247
BMW X3 E83 LCI Map Card Fuse Box Grouping Diagram 3450247
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Part no. 6961132-1
BMW 1 Series E87 Footwell Light Module LOW Body Control Unit 6961132
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Part no. 8512415-6
Mini Cooper SD R55 R56 LCI N47N 90HP Engine ECU Kit DDE 8512415 CAS3 MANUAL
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Part no. A2218708292
Mercedes W221 Safety Module Air Bag SRS Control Unit ECU A2218708292
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Part no. A2749061600
Mercedes W204 W205 W212 A207 X253 Engine Starter Motor Petrol Denso A2749061600
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Part no. 6905874
BMW X5 E53 Light Check Module Control Unit ECU Lear LCM III W / MAN. LWR 6905874
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Part no. 8P0862335D
Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Part no. A0015427419
Mercedes C140 W210 Multifunctional Purpose Relay Fuse Unit Module A0015427419
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Part no. A0009068106
Alternator Generator Mercedes W177 W247 M260 Petrol Engine 150A A0009068106
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Part no. 9390576
Airbag Module BMW X1 F48 F45 F46 Air Bag Control Unit ECU 9390576
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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 .