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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Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718205226
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Mercedes W140 Electric Seat Adjustment Control Unit Module ECU A1408205126
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Audi Universal SD Card Map Pilot Navigation Europe 2016 8X0919884J
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Mercedes Vito W639 Cover Fuse Box Battery Trim Panel Lid A6395450003
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Audi S3 8Y Diagnostic Interface Data Bus Gateway Control Unit 5QS907530A
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Audi A6 C6 2.0 TFSI BPJ 170HP Engine ECU Kit 4F2910115B Ignition + Key Manual
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BMW E81 E82 E87 LCI E90 Radio Business CD Player Unit 9210510
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Alternator Mercedes Sprinter W906 Diesel OM646 Engine Alternator A6461540002
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BMW 5 6 7 Series E60 E61 E65 N62N Petrol Alternator Generator 180A 7542934
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BMW F06 Footwell Light Module Control Unit ECU FRM3 6992947
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Mercedes R172 Door Module Mercedes Front Right O/S Control Unit A2129009229
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Mercedes W211 Front Fuse Box SAM SRB Module Relay Control Unit A2115455232
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BMW F10 F11 N47S1 Engine Injector Module Wiring Harness 8508654
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BMW Z4 Series E85 Driver's Side Door Airbag Control Unit Module 6935920
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Mercedes W166 Prefuse Box F32/4 Power Distribution Box A1665402950
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BMW F20 Mini F55 F56 F57 Petrol Engine Wiring Loom Harness 8644491
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BMW E60 M5 E63 E64 M6 S85 Starter Motor 7835126
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BMW X1 E84 Radio Stereo CD Player Navigation Nav Head Unit 9283247
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Fuse Box Mini Cooper R57 Cabrio High SPEG PL3 DC/DC H4 Distribution 3457579
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Volkswagen VW Touran Door Harness Loom Cable Wiring Front Passenger 1T0971120AC
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Parking Sensor Display Mercedes W176 W204 W246 Dashboard Panel PDC A1725420023
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Volkswagen Golf Sportsvan Fuse Box Engine Compartment Relay Unit 5Q0937125B
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Audi A1 8X Multimedia Radio CD Player Navigation Head Unit 8X0035183
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BMW F10 F11 F12 ECU ICM Control Unit Module 6856874
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BMW E46 316i M43 Petrol Engine Wiring Harness Engine Module Wiring 1439874
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Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A2465406432
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BMW 3 Series E91 E91N LCI Antenna Amplifier Diversity Unit 868 MHZ 6934846
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Mercedes W251 R 350 CDI 642.950 224HP Engine Unit ECU Kit A6421508100 Key Lock
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BMW F30 F31 Lane Change Wiring Sensor Module Master Right O/S HC-2 6856283
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BMW E46 Convertible Rollover Sensor Control Unit Module 6918515
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BMW X5 E53 3.0i Petrol M54 Alternator Valeo 140A 7551252
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BMW X3 X5 E83 E53 Telematics Control Unit Module GSM 9132712
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BMW X3 E83 Transmission DXC Transfer Box Wiring Cable Loom Harness 3414473
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Mercedes-Benz M ML W163 Rear Bumper Parktronic Wiring Loom Harness A1635402209
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BMW 7 Series E65 E66 Cooler Fan Unit Cooling 6932273 0130002845
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Mercedes SLK R171 Roadster Fuse Box Control Unit SAM Module Relay A1715451301
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069006102
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Vauxhall Opel Astra G Fuse Box Covering Trim Panel Lid Housing 09132701
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Mercedes Sprinter W906 Radio CD Player Audio Stereo Head Unit A9069000103
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BMW E81 E82 E87 LCI E88 123d N47S 204HP Engine Unit ECU DDE 8512500 Manual
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BMW X5 E53 Navigation System Sat Navi TV Video IBUS Module Unit 6968041
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Engine Starter Mini One D W17 R55 R56 Engine Starter Motor Diesel Valeo 7805098
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Battery Cover Mercedes C117 W176 W246 Frame Bracket Mount Holder A2465410105
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BMW E90 E92 E93 LCI Cable Alternator Starter Base B 7839662
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Mercedes W204 USB Port Cable Multimedia Interface Cable MI2-Ipod A0028272104
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BMW F10 F11 F12 X3 F25 Battery B+ Engine Compartment Terminal Point 9185734
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Starter BMW E90 Petrol N52 N53 Engine Starter Motor Unit 7521116
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BMW F80 M3 F82 F83 M4 S55 431hp Engine Control Unit ECU DME 8695512 Dual Clutch
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BMW X5 E70 Footwell ECU Light Control Unit Module FRM3R Basis Lear 9224616
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Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
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BMW E87 LCI Footwell Light Control Module ECU LOW PL2 FRM II 9159806
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BMW 3 Series E93 ECU Body Control Module H3 Junction Box PL2 JBBFE II 9160190
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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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Airbag Module BMW E65 E66 Sensor Driver's Side Air Bag Control Unit 6960223
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Mercedes W213 E220 CDI 654.920 194HP Engine ECU Kit A6549001400 Automatic
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Mercedes ML W164 W211 W221 Engine Starter Motor A0061515601 0001109262
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Mercedes W169 A150 M266.920 95HP Engine Control Unit ECU A2661531491 Automatic
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Volkswagen Golf Mk6 Alternator Generator Electrical Unit Valeo 03L903023F
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Mercedes-Benz E-Class W207 Cabrio A207 Anti Theft Alarm Module Control Unit ECU
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Mercedes W906 OM651.957 Diesel Engine ECU Kit Unit A6519002600 Key Lock Manual
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BMW 3 X3 X5 E70 E91 E83 1 Sunroof Sliding Roof Drive Unit Motor Actuator 6922652
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BMW Mini Cooper Convertible R57 Footwell Light Module ECU PL3 FRM II 3455701
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BMW F10 F11 Head Unit Basis Media Navigation System Controller Headunit 9226365
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BMW E87 E90 N45 116i 316i 116HP Petrol ECU Kit DME 7557809 + CAS 2 + Key Manual
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Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0005458916
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Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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BMW 3 5 7 X5 E38 E39 E46 E53 6-disc CD Changer Without Magazine 8377049
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BMW X1 F48 Mini Cooper F55 F56 F60 Connecting Line CID/HU-H 9380947
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Audi A3 8P CCM Covenience Control Module Unit Relay Board ECU HELLA 8P0959433F
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Seat Ateca Double USB C Charging Port Socket Connection Module 575035736
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Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
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BMW Z4 E85 E86 Air Module ECU Control Unit Module 9118749
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BMW F20 F21 M135i F30 F31 335i N55 Engine Control Unit ECU 8606776 Automatic
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BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper 6904012
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BMW F20 F21 F22 Body Control Module Unit FEM 8707679
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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 .