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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Mini Cooper One R55 R56 R57 R58 R59 Drivers Door Wiring Harness Loom 9137804
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BMW X5 E39 E53 Sunroof Sliding Roof Drive Unit Motor Actuator 8377939
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CD Changer BMW X5 E70 X6 E71 Mini R55 R56 R57 6 Disc Changer Unit 9125237
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Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav GPS Unit High 9387565
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BMW X5 E70 LCI Footwell Light Control Module Unit Lear FRM3R XE 9287250
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Air Suspension Module BMW X5 F15 F85 X6 F16 F86 Regulation Control Unit 6860387
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BMW E87 Front Bumper PDC Wiring Loom Cable Harness Parking Sensors 7837455
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BMW E60 E90 E91 N52 325i 525i 218HP ECU DME 7555361 Engine Control Unit Manual
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Rain Sensor Mercedes W211 W219 Windscreen Control Unit Module A2118701585
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Mercedes SLK R171 Crash Sensor Air Bag Impact Module Control Unit A0028201326
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BMW 7 Series E65 E66 E67 Diagnosis Interface Media System MOST Jumper 6917541
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Alternator Generator Mercedes W177 W247 M260 Petrol Engine 200A 14V A0009068206
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BMW E39 Saloon Rear Third Stoplamp Stop Lamp Brake Light 8360568
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Parktronic Mercedes Sprinter W901 W903 Front Bumper PDC Wiring Loom Harness
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Mini Cooper S R56 R57 N14 1.6 ECU Control Unit Kit DME 7610011 CAS3 Key Manual
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BMW E93 Body Control Module Junction Box ECU PL2 JBBFE H1 9134479
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Audi Universal SD Card Map Pilot Navigation Europe 2016 8X0919884J
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Mini Cooper R56 R57 LCI R58 R59 R60 CD Radio Audio Player Control Unit 3457433
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Audi A4 B9 2.0 TDI DETA Quattro Engine Control Unit ECU 04L907309L Automatic
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Mercedes SLK R171 Fuse Box SAM Relay Control Unit Module A1715450101
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Chrysler Voyager 2.8 CRD ENR Engine Alternator Generator 4868429AD
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Body Control BMW F30 F35 F35 LCI BCM Comfort Module Unit BCM 8709210
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BMW E92 325i N52N 218HP ECU Control Unit Kit DME 7567362 CAS3 + Key Manual
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Audi Q3 8U Petrol Alternator Generator 14V 140A 06J903023B
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BMW X5 Series E70 Power Distribution Fuse Box Front 9145115 6931690
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BMW E38 Earth Cable Battery Engine Electrical Cable Wiring 1436907 1436908
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Mercedes W169 A160 266.920 95HP Engine Control Unit ECU Kit A2661531491 Key Lock
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Mini Cooper R56 Fuse Box SPEG High DC/DC H4 3455235
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Mercedes C117 CLA45 AMG M133.980 4-Matic Engine Control ECU Kit A2709002100 Key
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Mercedes W176 Oil Pump Adapter Solenoid Valve Wiring Harness M270 A2701503920
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BMW E81 E87 E90 E91 Hands Free Electronics Charging MULF2 9162982
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BMW E60 Light Control Module Unit Lear LM E6X MAN.LWR Lear 6941589
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Mercedes W221 Seat Control Module Front Right O/S A2218707493
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Mercedes W202 C208 W208 Alarm Sensor Module Unit A2088206010
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Battery Cable BMW E90 E91 E92 E93 Wiring Negative Minus Pole IBS 7616200
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Airbag Module BMW F20 F21 F30 F31 F32 ECU ICM Control Unit Air Bag 6858700
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Mercedes W203 Aerial Antenna Amplifier Module Unit A2038206489
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Mercedes X156 GLA200 M270.910 156HP Engine Control Unit ECU Kit A2709002900 Key
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Mercedes-Benz M-Class ML W163 Fuel Pressure Sensor A0041537528
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Citroen C4 Peugeot 407 3008 Alarm Anti-Theft Siren Module Unit 9657384680
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Land Rover Freelander Ford Mondeo Focus Airbag Crash Impact Sensor 3M5T14B342AB
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Mercedes ML W163 Yaw Rate Sensor Turn Rate Speed Module A1635422318
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Mercedes Vito W447 Front Passenger Side Fuse Box Control Unit Module A4475407880
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Audi A5 8F 2.0 TDI CGLC 177HP Diesel Engine Control Unit ECU 03L906018JG Manual
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Mercedes SL400 R231 276.825 333HP Engine Control Unit ECU A2769007300 Automatic
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Audi A6 4F C6 3.0 TDI Diesel Starter Motor Bosch 0001109319 059911024D
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Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual
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Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9268752
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Fuse Box Mini Cooper R57 Cabrio High SPEG PL3 DC/DC H4 Distribution 3457579
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BMW 3 Series E46 Cable Loom Door Rear Left Right N/O/S Wiring Harness 8378338
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Mercedes-Benz CL S C215 W220 ESP PML BAS Control Unit Module ECU A2205451832
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BMW X5 E53 Basic Body Control Unit Module GM3 6946947
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Mini Cooper SD R56 LCI R60 143HP N47N Engine ECU Kit DDE 8517727 + CAS3 + Key
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BMW E81 E87 LCI Board Monitor Central Information Display 6,5" 9193753
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Audi Q2 GA Diesel Engine Alternator Generator Assembly Bosch 04L903024T
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BMW E46 Led Indicator Side Light Signal 7165845
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Transmission Module Mercedes W176 W246 Control Unit ECU A2469003114
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BMW 3 Series E92 Front Right O/S Driver Side Door Wire Wiring Loom 6957111
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Mercedes ML W164 Front Door Module Left N/S Control Unit ECU A1648200385
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Mercedes Vito W639 OM651.940 Diesel Engine Wiring Cable Loom Harness A6511501488
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BMW 1 X1 Series E81 E84 E87 RR1 Battery Lead Cable Negative IBS 6948335
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Audi A4 B8 2.0 TDI Diesel CAGA 143HP Engine Unit ECU 03L906022MK Automatic
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Audi Q3 8U 2.0 TFSI CULB 180HP Quattro Engine ECU Kit 06K907425C Ignition + Key
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Audi A7 4G A4 B8 A6 C7 Q5 8R Sat Navi Stereo Radio Audio Unit Player 4G0035061J
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Part no. 3456051-1
Mini Cooper R57 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456051
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Part no. 5Q0937084CP
Audi S3 8V Module BCM Body Control Unit Module ECU 5Q0937084CP
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Part no. 7581123-1
BMW E81 E87 LCI 130i N52N 258HP Engine ECU Kit DME 7581123 + CAS3 + Key Manual
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BMW F10 Footwell Light Control Unit Module ECU FRM III 9236461
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Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F
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Mini One R56 LCI R58 N16 1.6 98HP Engine ECU Kit DME 8625068 CAS 3 + Key Manual
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BMW 3 Series E91 ECU Body Control Module H4 Electronic Box 61359176886 9176886
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Mercedes W204 W212 W221 Power Distributor Box Conectors Socket A0045468040
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BMW 3 Series E46 Cable Loom Door Front Driver's Side Wiring Harness 6902772
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BMW F20 F21 F30 F31 Mini F56 Air Conditioning Module A/C Control Unit 9462542
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Part no. 6927313
Seat Module BMW E60 E61 E65 E66 Front Control Unit ECU 6927313
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Part no. 8734748
Telematics Control Unit BMW F20 F31 LCI F32 Module ATM ECE 4G WLAN 8734748
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Part no. 9309990
Mini F57 Cabrio Antenna Aerial Amplifier AM / FM Rear Unit Module FM2 9309990
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BMW Z4 E85 MINI Cooper One R50 R52 R53 Speed Sensor
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BMW E60 LCI E90 330d 530d M57N2 235HP Engine Control ECU DDE 7806976 Automatic
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BMW E60 E63 E64 Body Control Module ECU Control Unit 6969011
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BMW F20 F21 F30 F31 LCI Professional Navigation Sat Nav Unit Head Unit 8794119
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Mercedes Vito W639 OM646 Diesel Engine Wiring Cable Loom Harness A6395407735
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PDC Display Mercedes W639 Front Parking Sensor Screen Control Unit A0015422623
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Audi A6 C6 Diagnostic Interface Gateway Control Module Unit ECU 4F0907468D
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Audi A6 C6 Parking Control Unit ECU Module Sensor PDC 4L0919283B
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Radio Player BMW F20 F21 F30 F31 CD DAB Head Unit Audio Player 9335347
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BMW 3 Series E46 M54 Engine Wiring Harness Module Petrol Automatic 7506791
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Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
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BMW E60 E61 CIC Professional Navigation System Controller Head Unit 9214925
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Alternator Generator BMW X5 E53 E60 E61 E63 E65 N62 Petrol Engine 180A 7540992
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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223
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Alternator Mini R55 R56 R57 R57 R58 LCI Generator Petrol 7574365
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Volkswagen Touareg Audi Q7 Water Cooled Alternator 190A 059903015P
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Part no. A1645401801
Mercedes ML W164 Rear Control Unit Module Fuse Box SAM A1645401801
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Part no. 8K0907063DC
Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063DC
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Audi TT FV Starter Motor Engine Diesel 02M911021S
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Part no. 1439874
BMW E46 316i M43 Petrol Engine Wiring Harness Engine Module Wiring 1439874
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BMW X3 E83 Air Module Control Unit ECU 3452166
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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 .