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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BMW X1 E84 Front Bumper Loom Cable Harness Parking Sensors PDC Wiring 9191449
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BMW E65 E66 Steering Wheel Electronics Control Unit Module ECU 6938106
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BMW F15 Top Hifi Audio System AMP Amplifier Harman Kardon 9330058
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BMW 3 Series E90 Xenon Footwell Light Module Control Unit ECU PL2 FRMFA 6977724
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Audi TT 8J 2.0 TFSI BWA 200HP Engine Module Control Unit ECU Set 8J0907115
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VW Volkswagen Touran 1T Airbag Side Impact Crash Sensor Air Bag 5M0909606A
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9138430
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Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L
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BMW E53 E60 E65 E81 E87 E90 E91 Bulb Holder Turn Indicator 7160897
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Mercedes H243 Bonnet Actuator Left Right N/O/S Pedestrian Protection A2479069901
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Audi A8 D4 4H Rear View Reverse Parking Camera Module Control Unit 4S0907441B
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BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 9145158
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Mercedes ML GLC W164 X164 W204 Additional Backup Battery 12V 1.2Ah N000000004039
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Mercedes W205 W213 C238 Bluetooth Hermes LTE Control Unit Module A2139002210
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5X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9381101
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BMW Z4 E85 Airbag Module Sensor B-pillar Left N/S Control Unit Air Bag 6948087
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Mercedes W205 Alternator 14V/200A Valeo Diesel Engine M626 A0009063701
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Audi A5 8T Remote Radio Alarm Key Button Control Unit Module 868 MHZ 8T0959754
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BMW E60 E61 X3 E83 X5 E70 X6 E71 Starter Motor Diesel 7796892
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Audi Q7 4L Steering Column Lock Mechanism Control Unit Module ECU 4F0905852B
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Control Unit Module BMW F20 F21 F30 F31 F32 Rear Body REM 6819332
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BMW E60 E61 E63 E64 Micro Power Control Module MPM ECU 6939655
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BMW 3 Series E90 E91 LCI Mini R55 R56 Tyre Pressure RDC Control Unit Module
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BMW 3 5 X3 X5 Series E39 E46 E53 E83 Control Unit Control Unit EWS IV 9145349
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BMW X1 F48 F45 G30 Telematics Module Bluetooth Telephone Control Unit 8734740
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BMW Mini Cooper One R50 R53 Aerial Base Roof Antenna 6920279
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Bluetooth Head Unit Mini Cooper R55 R56 R57 Radio Boost CD USB 3457050
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Fuse Box Mercedes CLK W203 W209 Front SAM Module Control Unit A2095451401
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Radio Head Unit Ford Transit 6000 CD Media Player Unit 8C1T-18C815-AD
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BMW F10 Footwell Light Control Module ECU Unit FRM3 TEMIC 9250455
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BMW F20 Mini F55 F56 F57 Petrol Engine Wiring Loom Harness 8644491
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BMW 3 X3 X5 Series E46 E53 E83 Towing Hitch Trailer Hook Module Control Unit
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Mercedes GLE C292 Coupe Air Control Module Unit Bosch SRS A1669000220
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Mercedes W221 Head Unit DVD High Line Radio Player Navigation A2218708093
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Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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Mercedes W221 Power Supply Battery Control Module Unit A2215400401
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BMW E82 Footwell Light Module LOW PL2 FRM II 61359197176 9197176
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BMW E81 E87 LCI E90 E91 120d 320d Diesel N47 ECU Kit DDE 7810000 CAS3 + 2 Keys
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Mini Cooper One 1 R55 R56 R57 Radio Boost CD Player Head Unit 3455539
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BMW 3 Series F32 F82 M4 Wiring Loom Front Door Cable Passenger Side 9337221
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BMW X3 X5 E39 E46 E53 E83 Mini R50 R52 Control Unit Control Unit EWS3 6905668
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Mercedes-Benz W204 C220CDI Diesel Engine Control Unit Module ECU A6461502072
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BMW E87 E90 E91 E60 E61 E63 N52 Alternator Generator 155A 7542529
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Audi A3 8V 2.0 TDI DFGA Diesel Starter Motor 02E911022C
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Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021
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BMW F20 F21 F30 F31 F32 1 Body Control Unit Module REM 9329701
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Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064CP
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Mercedes W205 GLC X253 Distronic Radar Sensor Control Unit Module A0009059013
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Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192H
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Audi A1 8X Fuse Box Control Module Relay Box 6C0907361D
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BMW E38 728i M52 193HP Engine Control Unit ECU Module DME 1429861 Automatic
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Mini Cooper One R56 High PL3 SPEG H4 Relay Fuse Distribution Box 3457413
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Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102
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BMW F30 F36 Telematics Bluetooth Control Unit Module ECU 2622593
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BMW 1 Series E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9240523
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BMW X5 E53 Basic Body Control Unit Module GM3 6946947
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Fuse Distribution Box Mini Countryman R60 Electrical SPEG High 9813622
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Part no. 9180756-1
BMW E60 LCI Saloon Light Control Module Unit Lear LM II E6X LWR 9180756
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Starter Motor Volkswagen VW Golf IV Bora Sharan Diesel Engine 02M911023A
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BMW F10 M5 F12 M6 Ignition Engine Wiring Harness Ignition Module Cyl.5-8 7843326
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BMW X3 F25 Front Seat Control Unit Module ECU Left Right N/O/S 9369123
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BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784
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Volkswagen VW Golf IV Body Control Module BCM Comfort Control Unit 5DK008214
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BMW 3 4 Series F30 F31 F32 Rear Bumper PDC Cables Wiring Loom Set 9315897
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BMW E81 E87 E90 E91 E92 LCI Radio CD Professional DAB Unit 9289118
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BMW E81 E87 E90 LCI E92 Navigation System Car Computer CIC 9218330
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Skoda Octavia 5E Front Door Control Module Unit Passenger Side 5Q4959392B
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Yaw Rate Sensor Mercedes W169 W245 W211 W219 Turn Rate Sensor A2165420018
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Audi Q7 4L CD Player Changer Multimedia Module Control Unit 4L0910110B
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Audi A4 B9 8W TDI Diesel Adblue Dosing Module Control Unit 4M0907355E
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Seat Wiring BMW X3 F25 X4 F26 Cable Loom Harness Passenger's Side 9316662
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BMW 1 3 E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Manual
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BMW F34 Underfloor Battery Positive Cable Wiring Harness Lead 9308294
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Battery Cable VW Polo 6R Audi A1 8X Starter Alternator Wiring 6C0971349MD
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BMW F20 F30 F36 Front Electronic Module Control Unit FEM 9381102
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Mercedes CLC CL203 Trunk Lid Tailgate Left N/S Wiring Cable Harness A2035406609
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BMW E92 Xenon Footwell Light Module Control Unit ECU FRMFA 9133281
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Mercedes CLK W209 Convertible Roof Top Control Unit Module ECU A2098204526
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BMW 5 6 Series E60 E61 E63 M-ASK Business Navigation System Controller 6944108
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BMW X5 Series E53 Light Check Module Control Unit ECU Xenon Lear LCM IV 6961141
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BMW E60 E63 E87 E90 E91 Relay Make Contact Orange Bosch 4 Pins Set 1378238
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BMW 7 Series E65 E66 Antenna Amplifier Diversity Unit Module 6941747
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Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 8200935115 Manual
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BMW E88 Footwell ECU Xenon Light Control Module PL2 FRM II Lear 9197162
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Mini Cooper One 1 R55 R56 R57 Radio Boost CD Player Head Unit 3452681
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VW Volkswagen Touareg 7L Automatic Gearbox Module Control Unit ECU 09D927750EE
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Fuse Box Mercedes W204 Rear SAM Relay Control Unit Module A2049009501
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Part no. 3AA919475N
Volkswagen Passat B7 PDC Parking Assistant Module Control Unit 3AA919475N
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Audi Q7 4L Air Suspension Control Module ECU 4L0910553B
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BMW X5 E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor
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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 .