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. A9067600404
Bowden Cable Mercedes W906 Rear Sliding Door Opener Cable Wire A9067600404
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Part no. A6519007500
Mercedes W212 E220CDI OM651.924 Engine Unit Module ECU A6519007500 Automatic
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Part no. A0045450201
Mercedes Sprinter W906 Fuse Prefuse Box Relay Electrical Unit A0045450201
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Part no. A9065452101
Fuse Box Mercedes Sprinter W906 SAM Control Unit Module A9065452101
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Part no. A9064460542
Mercedes W639 W906 ECU Control Unit Sensor Module Air Module A9064460542
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Part no. A2049014504
Rain Sensor Mercedes W204 W212 Windscreen Control Unit A2049014504
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Part no. A0009008402
Mercedes W204 W176 W212 Tyre Pressure Monitor Control Unit Module A0009008402
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Part no. A2124401851
Mercedes W212 Door Wiring Loom Cable Rear Left Right N/O/S A2124401851
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Mercedes W212 Front Air Vent Centre Cable Wiring Dashboard Loom A2124404250
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Part no. A1698204085
Airbag Control Unit Mercedes W169 W245 System Module ECU A1698204085
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Part no. A1695400706
Rear View Mirror Cable Mercedes W169 W245 Wiring Loom Harness A1695400706
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Part no. A2129004307
Display Screen Mercedes W204 W212 Information Navigation Dashboard A2129004307
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Part no. A2079012200
Rain Sensor Mercedes W204 W212 Light Solar Condensation Control Unit A2079012200
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Part no. A6395400050
Mercedes Vito W639 Battery Terminal Fuse Box Control Unit Module A6395400050
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Part no. A2039000100
Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2039000100
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Part no. A2129014606
Mercedes W212 Display Screen Information Navigation Dashboard A2129014606
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Part no. A0025422619-1
Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
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Part no. A1669007814
Mercedes W166 W176 Navigation Screen Head Unit Sat Nav Display A1669007814
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Part no. A9069006303
Mercedes W906 Fuse Box Control Unit Module ZGS Temic A9069006303
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Part no. A2045458601
Mercedes W204 Fuse Box Rear Relay Control Unit Module SAM A2045458601
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Part no. A2129003814
Fuse Box Mercedes W204 W212 Front Relay Control Unit Module SAM A2129003814
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Part no. A0009827008
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Part no. A2129001606
Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
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Part no. A2045402410
Mercedes W204 Door Wiring Front Left N/S Door Cable Harness A2045402410
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Part no. A2124406207
Negative Cable Mercedes W212 Battery Earth Wiring Loom A2124406207
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Part no. A6461501934-1
Mercedes CL203 CLC200 CDI 122HP M646.963 Engine ECU Kit A6461501934 Key Lock
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Part no. A0009829608
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608
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Part no. A9069000004
Mercedes Sprinter W906 Radio Player CD Audio 10 Stereo Head Unit A9069000004
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Part no. A2048707658
Mercedes W204 Radio Control Function Button Knob Controller Unit A2048707658
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Part no. A2129000006
Fuse Box Mercedes W212 Front Relay Control Unit Electric Module SAM A2129000006
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Part no. A1686100336
Mercedes W168 Battery Support Holder Front Mount Bracket A1686100336
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Part no. A1685400230
Battery Starter Wiring Mercedes W168 Harness Cable Positive A1685400230
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Part no. A6399005400
Mercedes Vito W639 Fuse Box Relay Control Unit Electric Module SAM A6399005400
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Part no. A1695454332
Mercedes-Benz A B Class W169 W245 Sam Control Module Fuse Box Unit A1695454332
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Part no. A9066200131
Mercedes-Benz Sprinter W906 Battery Tray Housing Box Case A9066200131
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Part no. A2465410100
Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100
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Part no. A9065451640
Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
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Part no. A2129006905
Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
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Part no. A1688207310
Mercedes-Benz A-Class W168 Sensor Mat Seat Occupation Recognition A1688207310
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Part no. A6394401613
Wiring Harness Mercedes Vito W639 Boot Tailgate License Plate Lamp A6394401613
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Part no. A0015429018
Yaw Sensor Mercedes W210 W220 ESP Rotation Rate Control Unit Module A0015429018
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Part no. A6395450301-1
Mercedes W639 Fuse Box Relay Control Unit Electric Module SAM A6395450301
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Part no. A6461536579
Mercedes-Benz W203 W210 Sprinter W906 Glow Plug Relay A6461536579
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Part no. A9066880008
Mercedes W906 Cover Footwell Fuse Box Trim OBD Grey A9066880008
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Part no. A2129003908
Mercedes W212 Audio 20 CD Player Audio Stereo Radio Head Unit A2129003908
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Part no. A2129006417
Mercedes W207 W212 Head Unit CD Player Radio Navigation Controller A2129006417
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Part no. A0009052702
Mercedes W169 W204 W212 Battery Cable Negative Lead Wiring Harness A0009052702
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Part no. A2045401706
Mercedes W204 Front Left Right N/O/S Seat Wiring Loom Cable Harness A2045401706
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Part no. A0131546802
Alternator Generator Mercedes W204 W212 OM651 14V 180A Engine Electrical Unit
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Part no. A2125402705
Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705
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Part no. A2049005201
SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049005201
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Part no. A2035454501
Mercedes W203 Fuse Box SAM Control Unit Module Relay A2035454501
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Part no. A2125406462
Mercedes W212 Air Suspension Control Unit Module ECU A2125406462
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Part no. A0131541002
Mercedes-Benz Vito Viano W639 Alternator Generator Diesel 200A A0131541002
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Part no. A2048205015
Mercedes W204 W207 Wiring Loom Cable Harness AUX Jack A2048205015
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Part no. A1708200386
Mercedes-Benz A E M Class W163 W168 W210 CD Player Audio 10 Stereo Radio Unit
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Part no. A6421508900-1
Mercedes W212 E350 CDI OM642.852 Engine Control Unit Module ECU A6421508900
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Part no. A1669008808
Mercedes W212 Becker Navigation Map Pilot Control Unit Module A1669008808
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Part no. A2035402206
Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206
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Part no. A1695420018-HBL
Parking Sensor Mercedes W169 Front Bumper Distance Parktronic Horizon Blue 391
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Part no. A2038700026
Mercedes W203 ECU Control Unit Crash Impact Sensor Module Airbag A2038700026
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Part no. A1765405905
Mercedes W176 Center Console Wiring Loom Electrical Harness A1765405905
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Part no. A2128203985
Mercedes W204 W212 Door Module Rear Left N/S Control Unit Module A2128203985
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Part no. A2045401307
Mercedes W204 Centre Console Lightning Dashboard Cable Wiring A2045401307
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Part no. A2038703594
Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2038703594
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Part no. A1695401006
Mercedes W169 W245 Rain Light Sensor Control Unit Wiring A1695401006
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Part no. A2049017801
Mercedes W204 W212 Windscreen Rain Sensor Control Unit A2049017801
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Part no. A2035401335
Mercedes W203 W211 Diesel Engine Starter Cable Wiring A2035401335
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Part no. A0061510501
Mercedes W203 W204 Petrol Engine Starter Motor A0061510501
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Part no. A2038200189
Mercedes C CLK Class W203 W209 Antenna Amplifier Radio Left N/S A2038200189
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Part no. A0035420318
Mercedes-Benz A B E Class W169 W211 W245 Sensor Module ECU A0035420318
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Part no. A2035450803-1
Mercedes CL203 W203 Battery Terminal Fuse Box Control Unit Module A2035450803
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Part no. 8200308271
Fuse Pink Mercedes W415 Citroen Renault Kangoo Trafic Relay 4-Pin 8200308271
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Part no. A2469069600
Mercedes W176 W246 Backup Battery Negative Minus Terminal Lead A2469069600
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Part no. A1698206726
Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726
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Part no. A2086900028
Mercedes W202 C208 Roof Alarm Motion Sensor Cover Trim Grey A2086900028
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Part no. A2108207526
Mercedes W202 W210 Front Left Door Control Module A2108207526
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Part no. A2466280041
Mercedes-Benz A B Class W176 W246 Battery Holder Mount Bracket A2466280041
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Part no. A1669000318
Mercedes-Benz A B Class W176 W246 Front Left N/S Door Control Unit Module ECU
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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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Part no. A0025427619
Mercedes-Benz SLS ML G C197 W164 W463 Relay Fuse 5-Pin Green Hella A0025427619
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Part no. A2075452540
Mercedes-Benz E W207 Cabrio A207 Auxilliary Battery Bracket A2075452540
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Part no. A2038204002
Mercedes-Benz CLC CL203 Rear Left Right Door Loudspeaker Speaker A2038204002
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Part no. A2118200089
Mercedes-Benz E W211 Radio Aerial Antenna Amplifier Module Unit A2118200089
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Part no. A0018209726
Mercedes-Benz C CLK Class W203 W209 Airbag Control Unit Module ECU A0018209726
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Part no. A1635422918
Mercedes W163 Air Module System Control Unit Module ECU A1635422918
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Part no. A2208203685
Mercedes W220 Headlight Head Lamp Control Module Unit A2208203685
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Part no. A2118210097
Mercedes E-Class W211 Front Door Wiring Loom Harness Rubber Grommet A2118210097
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Part no. A2115406905
Mercedes CLS E Class W211 C219 Headlight Level Sensor Wiring Cable A2115406905
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Part no. A2118205785
Mercedes W211 S211 Airbag System Control Unit Module ECU
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Part no. A2118203042
Mercedes E-Class W211 S211 Front Right Door O/S Window Lifter Motor Regulator
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Part no. A0009822023
Mercedes W204 W212 W221 Battery Relay Module Unit A0009822023
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Part no. A1698700689
Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698700689
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Part no. A2719000600
Mercedes W203 C180 Kompressor M271.946 Engine Control Unit ECU A2719000600
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Part no. A2125406250
Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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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. A2129008507
Mercedes W212 Front Fuse Box SAM Relay Control Unit Module A2129008507
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Part no. A6401503733
Engine Wiring Mercedes W169 W245 Loom Cable Harness Injector Module A6401503733
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Part no. A6401540502
Mercedes W169 W245 A B 160 180 200 CDI OM640 Alternator Generator A6401540502
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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 .