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. A2045401307
Mercedes W204 Centre Console Lightning Dashboard Cable Wiring A2045401307
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Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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Mercedes W169 W245 Rain Light Sensor Control Unit Wiring A1695401006
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Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698202675
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BMW E60 E61 E63 E64 Parking Control Module Unit PDC 9176682
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BMW F01 F10 F11 LCI IBS Negative Battery Lead Cable 9234437
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BMW F07 F10 F11 F12 F13 Battery Cable Wiring Plus Pole 9217036
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BMW E90 LCI Footwell Light Control Module LCM LED Basis 9249083
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BMW E60 E61 E90 E91 On-board Navigation Display Monitor Screen 6,5" 9179808
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BMW F20 F21 LCI 116d Diesel B37 B37D15A 116HP Engine ECU DDE 8475350 Manual
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BMW F21 Door Wiring Front Passenger Door Loom Cables Harness F22 9340997
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Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801
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BMW E90 Max Brose Footwell Light Module Control Unit ECU 9340339
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BMW 3 E91 ECU Body Control Module M Junction Box PL2RR JBBFE IIIR 9329800
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BMW E81 E87 E90 E91 LCI Professional CD Radio Bluetooth 9263468
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BMW E87 E90 E91 Professional CCC Navigation System Controller
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BMW E87 E90 Seat Wiring Front Sport Seat Lumbar Loom Harness Cable 6942556
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Mercedes W203 W204 Petrol Engine Starter Motor A0061510501
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BMW 5 Series E60 LCI ECU Body Control Module Unit KBM Basis 9168833
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BMW E39 Saloon Rear Third Stoplamp Stop Lamp Brake Light 8360568
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BMW E39 Cruise Control Unit Module 8375497
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Mercedes-Benz A B E Class W169 W211 W245 Sensor Module ECU A0035420318
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BMW 3 5 7 X5 Series E38 E39 E46 E53 E65 Reception Antenna RDC 433MHZ 8378753
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Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803
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Fuse Pink Mercedes W415 Citroen Renault Kangoo Trafic Relay 4-Pin 8200308271
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Relay Black 12V V23134J52X207 V23134-J52-X207
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BMW E60 E87 E90 E91 E92 CAS 3 ECU Control Unit Key Reading Module 9226238
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Part no. A2469069600
Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600
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Mercedes W204 Parking Sensor Parktronic Display Control A2048208526
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BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9221110
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BMW F20 F21 F22 F30 F31 F32 F33 F36 Fan Motor Relay 9207913
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BMW 7 Series E65 E66 Sensor Front Right Door Airbag O/S 6947416
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Mercedes-Benz W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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Mercedes W202 W210 Front Left Door Control Module A2108207526
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Mercedes-Benz A B Class W176 W246 Battery Holder Mount Bracket A2466280041
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Part no. A0025427419
Mercedes-Benz A B E M W169 W245 W210 W163 Relay 5-Pin Yellow Hella A0025427419
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Mercedes-Benz SLS ML G C197 W164 W463 Relay Fuse 5-Pin Green Hella A0025427619
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BMW X5 E53 Fuse Box Label Trim Cover Panel Sticker 6920035
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Part no. A2075452540
Mercedes-Benz E W207 Cabrio A207 Auxilliary Battery Bracket A2075452540
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Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Mercedes-Benz C CLK Class W203 W209 Airbag Control Unit Module ECU A0018209726
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Mercedes W163 Air Module System Control Unit Module ECU A1635422918
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BMW E38 E39 Basic Control Unit Module ABS ASC Computer ECU 1164130
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BMW 5 7 Series E39 E38 Saloon Aerial Radio Antenna Diversity Amplifier 8378090
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BMW 3 5 7 Series E34 E36 E38 E39 Relay Control Module Unit White 1729004
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BMW E34 E38 E39 Relay Make Contact Pink 8365326 0332019168
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Mercedes W211 W220 Crash Sensor Left Right N/O/S A0025426918
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Part no. A2208203685
Mercedes W220 Headlight Head Lamp Control Module Unit A2208203685
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Part no. 2354130
BMW 3 X5 Series E46 E53 3.0d M57 Alternator Belt Tensioner 2354130
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Part no. 6939712
BMW 5 6 Series E60 E61 E63 Passenger Side Door Airbag Control Module 6939712
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Part no. A2118210097
Mercedes E-Class W211 Front Door Wiring Loom Harness Rubber Grommet A2118210097
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Mercedes CLS E Class W211 C219 Headlight Level Sensor Wiring Cable A2115406905
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Mercedes W211 S211 Airbag System Control Unit Module ECU
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BMW E46 Control Unit Module Mirror Memory 6916054 61356916054
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BMW E65 Battery B Engine Compartment Terminal Point Cover 8387568
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BMW 3 5 7 X3 X5 Z4 Series E38 E39 E46 E53 E85 E83 Control Unit EWS III
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Mini Cooper One R50 W10 Battery Cable Wiring Plus Pole 7515197
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BMW 3 6 Series E46 E64 Front Right O/S Seat Height Adjustment Drive
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Central Information Display BMW F20 F21 F22 F23 Screen 6,5" 9322122
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BMW 5 6 Series E60 E61 E63 Passenger Door Airbag Control Module 9110846
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Part no. A0009822023
Mercedes W204 W212 W221 Battery Relay Module Unit A0009822023
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IBS Cable BMW E60 Negative Battery Lead Wiring Harness Control Unit 9115488
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BMW E65 E66 Steering Wheel Electronics Control Unit Module 6958039
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BMW 7 Series E65 E66 Rear Bumper PDC Ultrasonic Sensor Black Sapphire 6989130
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Part no. 9263803-2
BMW E90 Max Brose Footwell Light Module Control Unit FRM3R 9263803
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Part no. 8571039
Engine Wiring BMW F20 F21 LCI B37 Injector Loom Harness Cable Module 8571039
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Part no. 8626086
Alternator Motor BMW F20 F21 LCI B37 Diesel Engine Alternator 180A 8626086
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Part no. 9249081
BMW E93 Footwell Light Control Module FRM3R PL2 Lear 9249081
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Part no. A1698700689
Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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Part no. 9335306
BMW F20 F21 LCI Wiring Loom Harness Rear Trunk Lid Right O/S 9251725
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Part no. A2719000600
Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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BMW F20 F21 F22 F30 F31 F32 Control Unit Airbag Ecu 9296494
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BMW F20 F22 F30 Rear Electronic Module REM Fuse Box Control Unit V5 ECU 6809053
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Part no. 6975069
Mini Cooper One R50 R52 R53 Cable Door Right Wiring Harness Loom 6975062
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BMW E65 Cable Harness Door Panel Card Rear Wiring Loom 6913147
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Part no. 3453891-1
Mini Cooper Cabrio 1 R57 Aerial Roof Antenna Base Unit 3453891
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Part no. A2128203542
Tailgate Module Mercedes W204 W212 Boot Lid Locking ECU Control Unit A2128203542
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Part no. A2129003825
Mercedes W204 SAM Module Control Unit Electrical Fuse Box Unit A2129003825
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Part no. 9229872-2
BMW E92 LCI Body Control Module ECU Junction Box L1 PL2RR JBBFE IIIR 9229872
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Part no. 2240952
BMW E60 E61 MINI R50 Rear Bumper PDC Ultrasonic Sensor Hyper Blue
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Part no. A2129008507
Mercedes W212 Front Fuse Box SAM Relay Control Unit Module A2129008507
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BMW E90 Light Module Xenon Footwell Control Unit Module ECU PL2 FRM II 9153779
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BMW X5 Series E53 4.4i Petrol M62 B44 448S2 Engine Wiring Loom Harness 1438902
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Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733
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Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
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Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502
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FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9352864
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BMW E93 Convertible Cabrio Rear Bumper TV Aaerial 9152325
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BMW F30 F31 F32 Bluetooth Player Unit Radio Professional CD 9290989
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Part no. A2125400382
Mercedes W212 Cover Fuse Box Trim Panel Lid A2125400382
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Mercedes W212 CDI Automatic Gearbox Control Module Unit ECU A0005456916
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Part no. A2129008307
Mercedes W212 Fuse Box Control Unit Module SAM Relay Box A2129008307
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Control Panel Mercedes W212 Comand Navi CD Switch Push-Button A2128702951
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Part no. A2129000306
Mercedes W212 Fuel Pump Module Control Unit A2129000306
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Part no. A2518206510
Mercedes W212 Light Sensor Sunlight Sensor Front A2518206510
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Part no. 7550319
Mini R50 R52 Alternator Generator 110A Benzin 7550997 7550319
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Part no. 6921965
Mini Cooper One R50 R53 Radio Boost CD Player Unit Head 6921965
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Part no. 9130563
BMW E65 E66 Dashboard Control Display Screen 8,8" Control Unit 9130563
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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 .