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. A2139005613
Mercedes W213 Front Door Module Right O/S Control Unit A2139005613
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1635401041
Mercedes-Benz M ML W163 Ground Earth Strap Cable Wiring A1635401041
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2539008007
Mercedes X253 Rain And Light Sensor Control Unit Module ECU A2539008007
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1779002107
Door Module Mercedes CLA C118 W177 Front Door Right O/S Control Unit A1779002107
€42.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A6395450203
Mercedes-Benz Vito W639 Fuse Box Cover Cap Trim A6395450203
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2055403103
Alternator Starter Wiring Harness Mercedes W205 GLC C253 OM651 A2055403103
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1645430062
Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062
€47.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1648701589
Mercedes ML W164 Aerial Antenna Amplifier Module Unit A1648701589
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2125406250
Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
€56.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1698201585
Mercedes W245 ECU Control Unit Sensor Air Module A1698201585
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2709060026
Starter Motor Mercedes W176 W246 Engine Starter Unit 12V Denso A2709060026
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A6519003403-1
Mercedes W906 314 CDI OM651 Engine Unit Module ECU Kit Key Lock A6519003403
€474.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2465451440
Mercedes W176 Fuse Relay Box Cover Cap Top Trim Lid A2465451440
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2218705687
Mercedes W221 Linguatronic Control Module Unit ECU English Version A2218705687
€85.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2059006615
Mercedes W205 Windscreen Rain Sensor Front Control Unit A2059006615
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1645403132
Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank A1645403132
€32.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A0009003505
Module Mercedes W205 Fuel Pump Control Module In Trunk Rear ECU A0009003505
Product currently unavailable

Part no. A2535402605
Mercedes GLC X253 Rear Bumper Wiring Loom PDC Harness Parking Sensor A2535402605
€66.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A6421508900-1
Mercedes W212 E350 CDI OM642.852 Engine Control Unit Module ECU A6421508900
€222.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A4145400130
Mercedes-Benz Vaneo W414 Cable Starter Line Positive Line Battery A4145400130
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A0035422819
Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2128208726
Mercedes W212 Door Module Rear Left N/S Control Unit ECU A2128208726
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2055408104
Battery Cable Mercedes W205 X253 Diesel OM651 Alternator Wiring A2055408104
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A9075407312
Mercedes W907 Battery Fuse Box Positive Distribution Terminal A2479061803
€56.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1695453740
Mercedes-Benz A-Class W169 Fuse Box Unit Holder Bracket Frame A1695453740
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1638201675
Mercedes-Benz M-Class ML W163 Roof Antenna A1638201675
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A6079002300-1
Mercedes W176 W246 180 CDI OM607 Engine Control Unit Module ECU A6079002300
€47.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2059068501
Mercedes W205 Fuse Box Rear Relay Electrical Control Unit Box A2059068501
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2055457540
Mercedes W205 C238 X253 W213 Inner Firewall Contact Support A2055457540
€32.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2218707386
Mercedes W221 Door Control Unit Module Right Rear O/S A2218707386
€37.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A9079051602
Mercedes W907 Aerial Antenna Amplifier Control Unit Module A9079051602
€32.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. RHD-A1664404337
Mercedes C292 Positive Cable Battery Starter Alternator Plus Wiring A1664404337
€85.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1779005509
Door Module Mercedes C118 W177 H243 Rear Left N/S Door Control A1779005509
€70.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2075844181
Mercedes C207 Fuse Box Grouping Fuse Placement Map Card Diagram A2075844181
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A0015424623
Mercedes A207 W204 W212 Front Parking PDC Display Panel A0015424623
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A1775409357
Mercedes W177 M282 Starter Alternator Electrical Wiring Harness A1775409357
€28.95
Free delivery - Fri, Nov 07
If paid before 14:00

Part no. A2018210047
Relay Mercedes W124 Indicators Wipers Hazard Lights Relay A2018210047
Product currently unavailable

Part no. A6401504033
Mercedes-Benz B-Class W245 180CDI Engine Wiring Harness Loom Cable A6401504033
Product currently unavailable

Part no. A6421501500-2
Mercedes W639 3.0CDI OM642.990 Engine Control Unit ECU Kit A6421501500 Key Lock
Product currently unavailable

Part no. A2475451000
Mercedes W177 W247 Battery Bracket Battery Mount Holder Trim A2475451000
Product currently unavailable

Part no. A2218207689
Mercedes W221 Sound Audio Amplifier Control Unit Module A2218207689
Product currently unavailable

Part no. A0155429317
Speed Sensor Mercedes Sprinter W906 Impuls Control Unit Module A0155429317
Product currently unavailable

Part no. A2115420418
Mercedes W211 Negative Battery Terminal Cable Wiring A2115420418
Product currently unavailable

Part no. A1698700289
Mercedes-Benz A-Class W169 CD Player Radio Stereo Head Unit A1698700289
Product currently unavailable

Part no. A2045842982
Mercedes W204 Fuse Box Grouping Fuse Placement Map Card Diagram A2045842982
Product currently unavailable

Part no. A0009006207
Mercedes-Benz A B E W176 W212 W246 Fuel Pump Module Control Unit A0009006207
Product currently unavailable

Part no. A2535406430
Mercedes X253 Front Bumper PDC Wiring Parking Sensor Loom Harness A2535406430
Product currently unavailable

Part no. A0009062722-1
Alternator Generator Mercedes W207 W212 OM642 Diesel Engine 200A A0009062722
Product currently unavailable

Part no. A2059001311
Mercedes W205 Door Module Front Left N/S Control Unit ECU A2059001311
Product currently unavailable

Part no. A2205400030
Mercedes-Benz S-Class W220 Battery Lead Cable Positive Pole A2205400030
Product currently unavailable

Part no. A0009004434-1
Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
Product currently unavailable

Part no. A2168206526
Mercedes W221 Bluetooth Module Multimedia Control Unit ECU A2168206526
Product currently unavailable

Part no. A2139001223
Mercedes W205 Ignition Control Unit A2139001223
Product currently unavailable

Part no. A1695403945
Mercedes-Benz B-Class W245 Central Gateway Control Unit Module ECU A1695403945
Product currently unavailable

Part no. A6131530379
Mercedes-Benz W210 E 320 CDI Diesel Engine Control Unit Module ECU A6131530379
Product currently unavailable

Part no. A2107600204
Mercedes-Benz W210 Rear Left Right Door Interior Handle Pull Cable A2107600204
Product currently unavailable

Part no. A2218708326
Mercedes W221 Rear View Backup Camera Control Unit Module A2218708326
Product currently unavailable

Part no. A2098204189
Mercedes-Benz CLK-Class C209 W209 Aerial Antenna Amplifier Unit A2098204189
Product currently unavailable

Part no. A0005400372
Mercedes-Benz E-Class W210 Diesel Fuse Box Relay Control Unit A0005400372
Product currently unavailable

Part no. A2139007107
Mercedes W213 Seat Control Module Unit ECU A2139007107
Product currently unavailable

Part no. A2539005009
Display Screen Mercedes C253 Vito W447 W448 Head Unit Touch Monitor A2539005009
Product currently unavailable

Part no. A2139009722
Mercedes W213 SAM Body ECU Control Module Unit A2139009722
Product currently unavailable

Part no. A2829003300-3
Mercedes C118 CLA200 282.914 163HP Petrol ECU Kit A2829003300 Key BCM Automatic
Product currently unavailable

Part no. A1695406805
Mercedes-Benz W245 Front Bumper Parking Sensor Parktronic Wiring Cable Harness
Product currently unavailable

Part no. A2123200558
Mercedes W212 Valve Block AMG Air Suspension Control Unit Module A2123200558
Product currently unavailable

Part no. A2661500101
Mercedes-Benz A B Class W169 W245 48V Starter Alternator Generator A2661500101
Product currently unavailable

Part no. A6511503633
Mercedes W212 OM651 Diesel Engine Wiring Harness Loom Cable A6511503633
Product currently unavailable

Part no. A1121535479
Mercedes W203 C240 M112.912 170HP Engine Control Module Unit ECU A1121535479
Product currently unavailable

Part no. A1685453532-1
Mercedes-Benz W168 A140 82HP Engine Control ECU Kit A1685453532 + 2 Keys Manual
Product currently unavailable

Part no. A0034464110
Mercedes W203 W204 W211 Automatic Gearbox Transmission Control Unit A0034464110
Product currently unavailable

Part no. A2165402545
Mercedes C216 W221 Distronic Radar Sensor Control Unit Module A2165402545
Product currently unavailable

Part no. A2115408545
Gateway Module Mercedes W211 Control Unit ECU A2115408545
Product currently unavailable

Part no. A1408202526
Mercedes C140 Seat Belt Module Control Unit ECU A1408202526
Product currently unavailable

Part no. A2138203202
Mercedes W213 Bluetooth Module Multimedia Control Unit ECU A2138203202
Product currently unavailable

Part no. A1729016600
Mercedes W204 Display Screen Radio Multimedia Navigation Sat Unit A1729016600
Product currently unavailable

Part no. A2094400705
Wiring Mercedes A209 Rear Trunk Lid Wiring Harness A2094400705
Product currently unavailable

Part no. A2125452640
Mercedes W212 Control Unit Module Bracket Holder Mount A2125452640
Product currently unavailable

Part no. A1648200485
Mercedes ML W164 Door Module Front Right O/S Control Unit ECU A1648200485
Product currently unavailable

Part no. A2139009020
Mercedes A238 Control Unit Module Amplifier Premium Sound A2139009020
Product currently unavailable

Part no. A1718206226
Mercedes R171 Door Control Module Front Right O/S A1718206226
Product currently unavailable

Part no. A6395450601
Mercedes Vito W639 SAM Module Electric Control Unit A6395450601
Product currently unavailable

Part no. A2208208410
Mercedes-Benz E-Class W210 Roof Alarm Motion Sensor Cover Trim Grey A2208208410
Product currently unavailable

Part no. A9069000004
Mercedes Sprinter W906 Radio Player CD Audio 10 Stereo Head Unit A9069000004
Product currently unavailable

Part no. A2124404250
Mercedes W212 Front Air Vent Centre Cable Wiring Dashboard Loom A2124404250
Product currently unavailable

Part no. A2669000200-2
Mercedes W169 A180 266.940 Engine Control ECU Kit A2669000200 Key Lock Automatic
Product currently unavailable

Part no. A9069004700-1
Mercedes Sprinter W906 Fuse Box SAM Control Unit Module A9069004700
Product currently unavailable

Part no. A2711504279
Mercedes W204 C180 156HP Kompressor M271.910 Engine ECU A2711504279 Manual
Product currently unavailable

Part no. A2048700594-2
Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700594
Product currently unavailable

Part no. A1699000300-1
Door Module Mercedes W169 W245 Front Left N/S Control Unit A1699000300
Product currently unavailable

Part no. A1111531879-1
Mercedes W210 E200 Kompressor M111.957 163 HP Engine Control Unit ECU Automatic
Product currently unavailable

Part no. A0195455632
Mercedes W202 C208 W210 Fuse Box SAM Relay Control Unit Module A0195455632
Product currently unavailable

Part no. A2139062201-1
Mercedes W213 Bonnet Actuator Pedestrian Protection Left Right N/O/S A2139062201
Product currently unavailable

Part no. A6402003370-1
Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
Product currently unavailable

Part no. A1699002100
Mercedes W245 Head Unit Radio CD Media Player Telephone Unit A1699002100
Product currently unavailable

Part no. A2469002603-1
Mercedes W176 W246 W166 Windscreen Windshield Rain Sensor Unit A2469002603
Product currently unavailable

Part no. A0001139065
Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter A0001139065
Product currently unavailable

Part no. A2115459001
Fuse Box Mercedes W211 W219 Junction Relay Control Unit Module SAM A2115459001
Product currently unavailable

Part no. A1669000220
Mercedes GLE C292 Coupe Air Control Module Unit Bosch SRS A1669000220
Product currently unavailable

Part no. A1645402601
Mercedes W164 Gateway Control Unit Gateway Module ECU A1645402601
Product currently unavailable
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 .