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 Z4 F20 F30 E89 Petrol Alternator Generator 170A 7605478
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Radio Head Mercedes Vito W639 Sprinter W906 CD Audio Stereo Unit A9068200886
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Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B
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Chip Power Box Remap Module Control Unit Wiring Cable Harness Plug OBD2
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BMW 1 Series e81 BODY CONTROL MODULE L2 61356968836 6968836
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BMW E46 M43 Engine Wiring Loom Harness Ignition Module Cable 1437967
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Mini Countryman R60 Footwell Light Module High EKS ECU PL3 FRM3R 3457031
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BMW E60 E63 E64 Body Control Module ECU 61356947919 6947919
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Mercedes W168 A160 102HP Engine Control ECU Kit A0275454132 + 2 Keys Automatic
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Air Module Mercedes Vito W639 Sprinter W906 Control Unit ECU Sensor A9064461542
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Alternator BMW F20 LCI Mini F30 F56 F60 Alternator Generator DENSO 150A
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BMW F20 F30 Head Unit Display Screen Sat Nav Navigation Set 033830N 10,25"
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Audi A5 8T Module Lane Assist Control Unit Rear Right O/S 8K0907566H
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Mercedes W221 Fuse Box Control Unit SAM Module Relay A2219067200
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BMW 3 5 Series E60 E90 325i 525i N52 218HP DME ECU 7567178 Kit CAS3 Key Manual
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BMW 7 Series E65 E66 E67 Telephone Navigation Adapter 6938360
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BMW E87 E90 Front Rear PDC Ultrasonic Parking Sensor SET X4 Kaschmirsilber
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Telematics Module BMW G11 G20 G30 Bluetooth Telephone Control Unit 2622589
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BMW E60 LCI E90 E91 325d 525d M57N2 Engine ECU Kit DDE 7811151 CAS3 Keys Manual
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Mercedes-Benz C-Class W203 W204 W211 Diesel Engine Starter Motor A0061512501
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BMW X5 Series E53 Electrical Power Distribution Fuse Box 8378107
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L
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BMW E60 E87 E90 E91 Hands Free Electronics Charging Module MULF2 9215184
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Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
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Engine Wiring Mercedes W176 W246 Diesel OM651 Loom Harness Cable A6511502790
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BMW F20 F21 Radio BMW Professional CD DAB Player Controller F21 F22 F30 9331211
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BMW F20 F30 Sport Seat Front Heating Mat Element F21 F31 F32 7243562
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Integrated Supply Module BMW F40 X1 F48 Mini F55 F56 Control Unit Z11 8642761
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Audi A5 8T Module Lane Assist Control Unit Rear Left N/S 8K0907568H
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404
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BMW X1 Series E84 Rear Bumper PDC Cables Wiring Loom Set 9230404
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Mercedes W212 Front Seat Headrest Display Screen Monitor Unit A2128205404
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Skoda Octavia II PDC Parking Sensor Control Unit Module Prince Blue F5X
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Mini Cooper S R55 R56 LCI N18 1.6 184HP ECU Kit DME 7612190 + CAS3 + Keys Manual
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BMW Z4 E46 E89 Mini R50 R52 Parking Control Module Unit PDC 9112463
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BMW X3 Series E83 Cover Positive B Battery Terminal Point Case 8371011
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BMW 3 5 Series E60 E61 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key 7555361 Manual
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BMW F30 LCI B48X 330e Hybrid Electric High Voltage Battery 8677631
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Mercedes Vito W639 OM646.980 111 CDI 116HP Engine ECU Module A6461500400 Manual
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BMW 3 Series E92 ECU Body Control Module Junction Box L1 PL2 JBBFE II 9160186
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Mercedes W176 W204 C207 C218 W246 Fuel Pump Control Module A0009001803
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Part no. 6913389-1
BMW X3 X5 Z4 E53 E83 E85 6-Disc CD Changer Multichanger With Magazine 6913389
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Audi S3 8V Central Gateway Control Unit Module Relay ECU 3Q0907530G
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Part no. 8W5035035B
Radio CD Player Audi A4 B9 A5 F5 Q5 FY Stereo Sat Nav Head Unit 8W5035035B
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Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
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Audi A7 4G 3.0 TDI Alternator Generator 059903018TX
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Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J
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Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual
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BMW G30 F90 M5 Antenna Aerial Diversity Amplifier Unit 8703399
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Mercedes W211 OM646 Battery Cable Starter Alternator Wiring Harness A2114406209
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BMW F20 F21 F30 F31 Diesel Alternator Generator 180A 8578608
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Audi A4 B7 Door Harness Loom Cable Wiring Rear 8E1971687L
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BMW E82 Footwell Light Module LOW PL2 FRM II 61359197176 9197176
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BMW Z4 E85 Rear Bumper Antenna Mounted Aerial Unit FM 6912244
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Mercedes W169 W245 M266.920 95HP Engine Control ECU Kit A2661539779 Manual
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Rear Bumper PDC BMW F20 F21 F22 Ultrasonic Sensor Tiefseeblau Deep Sea Blue A76
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Audi Q3 8U 2.0 TDI CUWA Fuel Pump Relay Control Unit Module ECU 5Q0906121M
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Mercedes W221 Rear SAM Fuse Box Power Distribution Control Unit A2215403050
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Engine Control Unit BMW F20 F21 F22 118i 218i B38 136HP ECU DME 8699955 Manual
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BMW X3 Z4 E83 E85 E86 Radio Business CD Player 9138430
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Part no. 2163807
BMW E92 Mid-Range Loudspeaker Midtone Speaker 2163807
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Part no. 7848603-1
Alternator BMW F87 M2 F80 M3 F82 F83 M4 S55 Engine Generator 250A Denso 7848603
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Mercedes W177 Fuse Box Power Distribution Junction Relay Unit A1779061002
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VW Volkswagen LT 35 2.5 TDI AVR 109HP Engine ECU Kit 074906018BK Manual Gearbox
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Audi A4 B9 Antenna Amplifier Aerial Control Module Unit 4M0035456A
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Mercedes SLK R171 Door Module Front Left Control Module A1718206926
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BMW F20 F21 Wire Cable Plug Wiring Diagnostic Socket OBD 9253563
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Part no. 7620985-1
Mini Cooper S R60 ALL4 N18 1.6 184HP ECU Kit Unit DME 7620985 CAS3 + Key Manual
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Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519003203 Manual
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BMW F20 F21 F30 F31 Fuel Pump Delivery Control Unit Module 7450992
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Mini Clubman R55 Rear Right O/S Wiring Loom Cable Harness Set 9172415
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VW Volkswagen Polo 4 9N Radio CD Player Stereo Audio Head Unit 6Q0035152D
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Negative Lead Battery Cable BMW G11 G30 G31 X3 G01 IBS Wiring Harness 6840519
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BMW E87 E90 E91 120i 320i N46 150HP ECU KIT DME 7561834 CAS2 + Key Automatic
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Audio Amplifier HiFi BMW E87 E90 Top Sound System Control Unit 9177752
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Audi RS3 8Y 2.5 TFSI Quattro 400HP DNWC Engine Unit ECU 07K907309L Automatic
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BMW X5 E39 E53 Sunroof Sliding Roof Drive Unit Motor Actuator 8377939
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BMW 3 Series E90 ECU Body Control Module H1 61356968034 6968034
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BMW i3 I01 High Voltage Energy Storage Unit Wiring Cable Wire 6809274
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BMW 7 Series E65 E66 Sensor Front Right Door Airbag O/S 6947416
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Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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Audi A6 C6 Electric Parking Hand Brake Module Control Unit ECU 4F0907801B
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BMW E65 E66 Steering Wheel Electronics Control Unit Module ECU 6938106
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BMW X5 Series E70 Individual Audio System Amplifier Top-hifi Lear PL5 9204842
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Seat Ibiza 6J Central Body Comfort BCM Interface Module 6C0937089D
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Skoda Octavia 5E Front Lamp Headlight Range Control Module Unit ECU 7P6907357A
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Renault Trafic F83 F9Q 760 Engine Control Module ECU 8200546983 Manual
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BMW E90 Radio Professional CD Audio Player Dash Control Unit 6983018
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Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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Mercedes X218 CLS350 Airmatic Suspension Self Leveling Module A2189008903
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BMW Mini Cooper R56 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456395
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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 .