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. A2098204189
Mercedes-Benz CLK-Class C209 W209 Aerial Antenna Amplifier Unit A2098204189
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Mercedes W906 OM651.955 Diesel Engine Wiring Harness Loom Cable A6511502620
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Mercedes W221 Gateway Control Unit Module ECU A2215408845
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Radio Head Unit Mercedes W212 COMAND Navi CD DVD Player Navigation A2129008404
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Mercedes W212 W221 Rear DVD Entertainment System Video Player Unit A2128703689
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Mercedes W221 Hood Bonnet Light Solar Sensor Module Unit A2118701310
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Mercedes SLK R171 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1715400506
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Mercedes C219 CLS350 CDI OM642.920 Engine Module ECU A6421501230 Automatic
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Mercedes W212 Control Unit Module Bracket Holder Mount A2125452640
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Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200386
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Fuse Box Mercedes SLK R171 W203 W209 Front Relay Control Unit A2035400050
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Mercedes Sprinter W901 OM602 Engine Control Unit ECU Module A0215455632 Manual
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Earth Ground Cable Mercedes Sprinter W901 Battery Wiring Loom Engine A9015400631
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Positive Cable Mercedes W906 Battery Starter Alternator Plus A9065403627
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Mercedes W204 Navigation Radio CD Player Head Unit A2049007202
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Part no. A2035453801
Fuse Box Mercedes W203 C209 Rear SAM Module Relay Control Unit A2035453801
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Part no. A2045454701
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045454501
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Mercedes W204 Yaw Rotation Rate Acceleration Sensor Module A0055421818
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Part no. A2046800931
Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046800931
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Part no. A2045453901
Mercedes W204 Fuse Box Relay Control Unit Electric Module SAM A2045453901
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Part no. A2048208285
Mercedes W204 Safety Crash Impact Control Module Unit A2048208285
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Part no. A2118208185
Mercedes W211 Door Module Front Left N/S Driver Control Unit ECU A2118208185
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Part no. A2118208285
Mercedes W211 Door Module Front Right O/S Driver Control Unit ECU A2118208285
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Part no. A1715451301
Mercedes R171 Fuse Box Control Unit SAM Module Relay A1715451301
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Part no. A1699002400
Mercedes W169 CD Navi Media Player Radio COMAND Head Unit A1699002400
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Part no. A2048982614
Battery Cover Mercedes W204 W207 Trim Lid Panel A2048982614
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Part no. A1718204226
Mercedes R171 Convertible Roof Top Control Unit Module ECU A1718204226
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Part no. A2044400538
Mercedes C204 Wiring Cable Harness Front Driver Door Wiring Loom A2044400538
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Part no. A2044400638
Mercedes C204 Wiring Cable Harness Front Passenger Door Wiring Loom A2044400638
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Part no. A6394408537
Mercedes W639 Front Bumper PDC Wiring Parking Sensor Loom Harness A6394408537
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Part no. A0009105202
Mercedes ML W164 Lumbar Module Front Seat Control Unit A0009105202
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Part no. A2198202326
Mercedes CLS W219 Door Module Front Left N/S Control Unit Module A2198202326
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Part no. A2078210411
Mercedes W204 W207 Centre Console Connector AUX USB Port Socket Trim A2078210411
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Part no. A6681500033
Engine Wiring Mercedes W168 668942 Diesel Module Loom Harness Cables A6681500033
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Part no. A2119060700
Mercedes CLS W219 Head Unit CD Player Navigation Radio Audio Unit A2119060700
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Part no. A9079001703
Display Screen Mercedes W907 W910 Head Unit Touch Monitor 7" A9079001703
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Part no. A0999008701
Mercedes W177 Steering Column Control Module A0999008701
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Part no. A1678201302
Mercedes W167 W256 USB Charger Connecting Unit A1678201302
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Part no. A9100005999
Mercedes Sprinter W910 Cable Wiring Loom Harnesses A9100005999
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Part no. A2115409605
Mercedes W211 Rain Light Sensor Control Unit Wiring Loom Cable A2115409605
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Part no. A2118704085
Seat Module Mercedes W203 W211 Control Unit Front Left Right N/O/S A2118704085
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Part no. A2466200514
Mount Support Mercedes W176 Battery Bracket Holder A2466200514
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Part no. A2115420418
Mercedes W211 Negative Battery Terminal Cable Wiring A2115420418
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Part no. A2038209385
Mercedes CL203 C209 Bi-Xenon Headlight Ballast Control Unit Module A2038209385
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Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
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Part no. A6398200186
CD Radio Mercedes W639 W906 Audio Stereo Head Unit A6398200186
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Part no. A2049009510-1
Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049009510
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Part no. A2035453501
SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501
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Part no. A2035451701
SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701
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Part no. A1729004004-1
Mercedes W204 Display Screen Multifunction Navigation Dashboard A1729004004
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Part no. A0005400950
Fuse Box Mercedes Sprinter W901 W902 W903 W904 Relay Control Unit A0005400950
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Part no. A2711534279-1
Mercedes W203 C200 Kompressor 163HP M271.940 Engine ECU Kit A2711534279 Key Lock
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Mercedes W203 C220CDI OM611.692 116HP Engine Unit ECU Kit A6111537779 Key Lock
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Part no. A2711532291
Mercedes W203 C180 Kompressor M271.946 Engine ECU A2711532291 Automatic
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Part no. A2038201385
Door Module Mercedes CL203 W203 Front Left N/S Control Unit A2038201385
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Part no. A1698206926
Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
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Part no. A0325451232
Mercedes W203 Gearbox Transmission Control A0325451232
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Part no. A2095450001
Mercedes CLK W209 Fuse Box Relay Control Unit Module SAM Fuse Box A2095450001
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Part no. A6429002900
Mercedes W212 E350 CDI OM642.850 Engine Control Unit Module ECU A6429002900
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Part no. A1769052400-1
Mercedes W176 Pressure Crash Impact Sensor A1769052400
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Part no. A2118206026
Mercedes W211 Rain And Light Sensor Control Unit Module ECU A2118206026
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Part no. A6395450191
Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191
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Part no. A2128700194
Mercedes W204 W212 C218 Sound Audio Amplifier Harman Becker A2128700194
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Part no. A2115408545
Gateway Module Mercedes W211 Control Unit ECU A2115408545
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Part no. A2721540002
Alternator Generator Mercedes R171 W209 M272 Petrol Engine 150A A2721540002
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Part no. A0009003210
PDC Module Mercedes W176 W246 Parking Assist Distance Control Unit A0009003210
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Part no. A0005458916
Mercedes W639 Automatic Gearbox EGS Control Unit Transmission Module A0005458916
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Part no. A0325456926
Mercedes W176 W205 Exhaust Control Valve Flap Actuator Module Unit A0325456926
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Part no. A4479007906
Mercedes W447 Door Module Front Left Control Unit A4479007906
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Part no. A0005461366
Mercedes W203 W209 Relay Unit Module 2 Pins White Hella A0005461366
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Part no. A0051511301-2
Starter Motor Mercedes W203 W210 W211 Diesel Engine Actuator A0051511301
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Part no. A2711534691
Mercedes W203 C200 Kompressor M271.940 163HP Engine ECU A2711534691 Automatic
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Part no. A1645402601
Mercedes W164 Gateway Control Unit Gateway Module ECU A1645402601
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Part no. A2219000100
Mercedes W221 Digital Audio DAB Receiver Control Unit Module A2219000100
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Part no. A6519062300-1
Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter NAPA A6519062300
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Part no. A6079002300-2
Mercedes W176 180 CDI OM607.951 Blue Efficiency ECU Kit A6079002300 Key Lock
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Part no. A2049009907
Mercedes W204 Navigation Radio Player Head Unit Hazard Seat Switch A2049009907
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Part no. A6399000800
Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Part no. A0009063322
Alternator Generator Mercedes W176 W246 OM651 Diesel Engine 175A A0009063322
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Part no. A6399003300
Mercedes Vito W639 Parking Module PDC Distance Control Unit Sensor A6399003300
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Part no. A2465403805
Mercedes W176 W245 Front Left N/S Door Wiring Loom Harness A2465403805
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Part no. A2465403005
Mercedes W176 W245 Front Right Door Wiring Loom Harness A2465403005
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Part no. A0155429317
Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
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Part no. A2095451101
Fuse Box Mercedes W203 W209 Front Relay Control Unit Module SAM A2095451101
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Part no. A1645406501
Mercedes ML W164 Front SAM Control Unit Module ECU A1645406501
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Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009827008
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Part no. 96647952XT
Peugeot 3008 USB AUX Connector Interface Adapter Port Socket 96647952XT
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Part no. A1648705094
Mercedes ML W164 Audio Stereo Radio CD Player Head Unit A1648705094
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Part no. A1645403272
Mercedes ML W164 Fuse Box Relay Control Unit Module A1645403272
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Part no. A2468200035
Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
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Part no. A1645403372
Mercedes ML W164 Fuse Box Relay Control Unit Rear A1645403372
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Part no. A2035451003
Fuse Box Cover Mercedes W203 W209 Battery Terminal Housing Trim Cap A2035451003
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Part no. A0025421219-1
Mercedes W168 W203 W211 W218 Relay Unit 5-Pin Yellow Hella A0025421219
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Part no. A0035423918
Yaw Sensor Mercedes W203 W209 ESP Rotation Rate Control Unit Module A0035423918
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Part no. 280380655R
Renault Trafic II Control Unit Sat Nav Navigation Module Unit 280380655R
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Part no. A2098203026
Mercedes CLK W209 Convertible Rain Light Sensor Windscreen Module A2098203026
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Part no. A2229067403
Mercedes W177 W247 M260 Exhaust Control Valve Flap Actuator Drive A2229067403
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Part no. A9069003502
Mercedes W906 Fuse Box Relay Control Unit Electric Module SAM A9069003502
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Part no. A6519007401-3
Mercedes W212 E250CDI Blue Efficiency OM651 204HP Engine ECU A6519007401 Key
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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 .