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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-15%
Part no. A2829003300
Mercedes W177 A200 163HP M282.914 Engine Control Unit ECU A2829003300 Automatic
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€37.95
€32.26
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2479003808
Suspension Module Mercedes C118 W177 W247 Control Unit ECU A2479003808
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€151.95
€91.17
Free delivery - Tue, Nov 04
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Part no. A2049060105-1
Mercedes W204 SAM Control Unit Module Fuse Box Relay Rear A2049060105
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€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2129004106
Door Module Mercedes W212 Rear Left N/S Control Unit A2129004106
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€23.95
€22.75
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Part no. A0009821923
Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relay A0009821923 Red
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€23.95
€22.75
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Part no. A2129004307
Display Screen Mercedes W204 W212 Information Navigation Dashboard A2129004307
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€80.95
€68.81
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Part no. A1695450140
Mercedes A B Class W169 W245 Holder Bracket Engine Control Unit A1695450140
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€23.95
€22.75
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Part no. A2115400008
ABS Sensor Mercedes W211 C219 Front Brake Wiring Harness Right O/S A2115400006
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€28.95
€24.61
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Part no. A0009056001
Battery Cable Mercedes W213 S213 Negative Lead Wiring Harness A0009056001
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€32.95
€28.01
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Part no. A9075450100
Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100
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€75.95
€64.56
Free delivery - Tue, Nov 04
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Part no. A2469008516
Parking Brake Module Mercedes W176 W246 Electric Control Unit ECU A2469008516
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A1718600205
Mercedes R171 Passenger Seat Air Module Control Unit Module A1718600205
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€56.95
€48.41
Free delivery - Tue, Nov 04
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Part no. A2216890614
Mercedes W221 PDC Distance Control Holder Bracket A2216890614
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A1729007313
Mercedes SLC R172 PDC Parking Sensor Module Unit ECU A1729007313
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€75.95
€64.56
Free delivery - Tue, Nov 04
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Part no. A2198200726
Door Module Mercedes C219 Front Right Door O/S Control Unit Module A2198200726
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€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2129069900
Player Audio Mercedes C207 W212 Head Unit CD Media Radio Controller A2129069900
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€56.95
€48.41
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2465405733
Wiring Harness Mercedes X156 W176 Petrol Battery To Starter Cable A2465405733
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2129060205
SAM Module Mercedes W207 A207 C207 Rear Control Unit ECU A2129060205
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€99.95
€59.97
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2118201626
Mercedes S211 W211 Rear Door Control Unit Right O/S A2118201626
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2035450803
Mercedes W203 Battery Terminal Fuse Box Electrical Unit A2035450803
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2129005200
Seat Module Mercedes W204 W212 Memory Control Unit Driver's Side A2129005200
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€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2118210197
Mercedes E-Class W211 Rear Door Wiring Loom Harness Rubber Grommet A2118210197
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A1649100075-1
Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075
Promo price
€56.95
€48.41
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A2185409606
Mercedes C218 Parktronic Parking Sensor Wiring Cable Rear PDC A2185409606
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A2055404913
Mercedes W205 Wiring Cable Harness Center Console Ambient Lightning A2055404913
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A2139068801
Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A0009828523
Mercedes W164 Suspension Compressor Relay A0009828523
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A6461502734-1
Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic
Promo price
€165.95
€141.06
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A1648205585
Mercedes W164 Air Module Control Unit SRS Sensor ECU Bosch A1648205585
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A2055405203
Mercedes W205 Negative Cable Battery Lead Minus Pole Wiring A2055405203
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A9079004105
Air Module Mercedes Sprinter W907 W910 Control Module ECU A9079004105
Promo price
€85.95
€73.06
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A2059000219
Mercedes C117 W176 W205 Telematics Module Communication Control Unit A2059000219
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A2074401208
Mercedes W207 Parking Sensor Wiring Loom Cable Harness Rear PDC
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A2469003818
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469003818
€332.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1779001304
Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779001304
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2229004213-1
Keyless Go Mercedes GLC X253 Keyless Entry Control Module A2229004213
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2135451140
ECU Bracket Mercedes W213 Control Unit Module Holder Mount A2135451140
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 0390203255
Seat Adjustment Motor Mercedes W221 Front Seat Motor Actuator 0390203255
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2079010600
Rain Sensor Mercedes W204 W212 Light Solar Condensation Control Unit A2079010600
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A1728202989
Mercedes SLK R172 Roadster Antenna Amplifier Control Module A1728202989
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A6399003300
Mercedes Vito W639 Parking Module PDC Distance Control Unit Sensor A6399003300
Product currently unavailable

Part no. A2035451701
SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035451701
Product currently unavailable

Part no. A2115452240
Mercedes-Benz E CLS Class W211 W219 Control Module Bracket Holder A2115452240
Product currently unavailable

Part no. A6519007600-3
Mercedes W246 B180 CDI 651.901 109HP Engine ECU Kit A6519007600 Ignition + Key
Product currently unavailable

Part no. A2719060200
Mercedes W204 W211 W212 S212 Engine Starter Motor A2719060200
Product currently unavailable

Part no. A2049004714
Mercedes W204 COMAND Navi CD Player Radio Sat Nav Head Unit A2049004714
Product currently unavailable

Part no. A2129006905
Mercedes W212 Comand Radio Head Unit CD DVD Player A2129006905
Product currently unavailable

Part no. A0141542702-1
Alternator Generator Mercedes Vito W639 Sprinter W906 14V 120A Bosch A0141542702
Product currently unavailable

Part no. A0009068302
Mercedes Sprinter W907 Alternator Generator Engine Diesel 250A 14V A0009068302
Product currently unavailable

Part no. A2045405709
Mercedes W204 Dashboard Dash Navigation Central Display Wiring Cable A2045405709
Product currently unavailable

Part no. A1679008406
Mercedes W167 W177 W247 Ignition Engine Control Unit Module A1679008406
Product currently unavailable

Part no. A6429061000
Mercedes W204 W213 ML W166 OM642 Diesel Engine Starter Starting Unit A6429061000
Product currently unavailable

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

Part no. A2129004603
Mercedes-Benz W221 Distronic Intelligent Cruise Control Radar Unit A2129004603
Product currently unavailable

Part no. A2048982614
Battery Cover Mercedes W204 W207 Trim Lid Panel A2048982614
Product currently unavailable

Part no. A1685453532
Mercedes W168 ESP + HBA Electronic Stability Program Control Module A1685453532
Product currently unavailable

Part no. A2038200189
Mercedes C CLK Class W203 W209 Antenna Amplifier Radio Left N/S A2038200189
Product currently unavailable

Part no. A6071500133
Engine Wiring Mercedes W176 W246 Diesel OM607 Loom Harness Cable A6071500133
Product currently unavailable

Part no. A1635422318
Mercedes ML W163 Yaw Rate Sensor Turn Rate Speed Module A1635422318
Product currently unavailable

Part no. A2059007143
SAM Module Mercedes W205 Trunk Rear SAM Control Module A2059007143
Product currently unavailable

Part no. A2539003809
Mercedes W253 Display Screen Monitor Radio Sat Nav Navigation Unit A2539003809
Product currently unavailable

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

Part no. A2078205289
Mercedes C207 Rear Radio Amp Sound Amplifier Audio Getaway Becker A2078205289
Product currently unavailable

Part no. A2124401851
Mercedes W212 Door Wiring Loom Cable Rear Left Right N/O/S A2124401851
Product currently unavailable

Part no. A6461540102-1
Alternator Generator Mercedes Vito W639 Sprinter W906 Engine Diesel A6461540102
Product currently unavailable

Part no. A0015455716
Mercedes Vito W639 Automatic Gearbox EGS Control Unit Module ECU A0015455716
Product currently unavailable

Part no. A1694402805
Mercedes-Benz A B W169 W245 Starter Alternator Battery Lead Cable A1694402805
Product currently unavailable

Part no. A6519002803
Mercedes W251 R320 CDI OM642 4Matic Engine Unit ECU KIT A6519002803 Key Lock
Product currently unavailable

Part no. A1698203775
Mercedes W169 W245 Aerial Roof Antenna Radio Control Unit Module A1698203775
Product currently unavailable

Part no. A1645460161
Mercedes-Benz M-Class ML W164 Front Left N/S Cable Wiring Duct A1645460161
Product currently unavailable

Part no. A1645402372-1
Mercedes W164 W251 Fuse Box Fuse And Relay Module Rear Unit A1645402372
Product currently unavailable

Part no. A2711505433
Mercedes R171 W203 Petrol Engine 271921 Wiring Harnes Loom A2711505433
Product currently unavailable

Part no. A2038201311
Phone Adapter Mercedes W203 W211 Contact Plate Holder Telephone A2038201311
Product currently unavailable

Part no. A2479007314
Mercedes CLA 200 C118 Instrument Cluster Electronics Control Module A2479007314
Product currently unavailable

Part no. A2129004008
Mercedes C207 Stereo Radio CD Player Head Unit A2129004008
Product currently unavailable

Part no. A2218709987
Mercedes W221 Air Conditioning Climate Heater Control Unit Module A2218709987
Product currently unavailable

Part no. A2115452132
Mercedes E-Class W211 Passenger Side Acquistition Actuation Signal Control Unit
Product currently unavailable

Part no. A0009063000
Alternator Generator Mercedes W204 W212 M271 Engine Valeo 150A 14V A0009063000
Product currently unavailable

Part no. A2469006710
Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710
Product currently unavailable

Part no. A2049005201
SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049005201
Product currently unavailable

Part no. A0009008402
Mercedes W204 W176 W212 Tyre Pressure Monitor Control Unit Module A0009008402
Product currently unavailable

Part no. A1718200726-1
Mercedes R171 Front Module Door Left N/S Control Unit A1718200726
Product currently unavailable

Part no. A2048207785
Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
Product currently unavailable

Part no. A2108200789
Mercedes-Benz E-Class W210 Estate Radio Aerial Antenna Amplifier A2108200789
Product currently unavailable

Part no. A2661540802
Mercedes-Benz W169 W245 Alternator Generator Petrol 90A A2661540802
Product currently unavailable

Part no. A2515450316
Mercedes W251 W211 Air Suspension Control Module Unit ECU A2515450316
Product currently unavailable

Part no. A0009059013
Mercedes W205 GLC X253 Distronic Radar Sensor Control Unit Module A0009059013
Product currently unavailable

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

Part no. A2465402150
Mercedes-Benz A B Class W176 W246 Diesel Fuse Box Relay Unit A2465402150
Product currently unavailable

Part no. A6395450232
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
Product currently unavailable

Part no. A2035453501
SAM Module Mercedes W203 Fuse Box Control Unit Relay A2035453501
Product currently unavailable

Part no. A2038206489
Mercedes W203 Aerial Antenna Amplifier Module Unit A2038206489
Product currently unavailable

Part no. A2465409711
Seat Wiring Mercedes C117 W176 W246 Loom Harness Cable Left N/S A2465409711
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Mercedes W205 W217 W222 Tailgate Trunk Control Module Unit A2229006008
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Mercedes W177 W205 W238 W257 Gearbox Control Unit Module ECU A0009005517
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Part no. A0018200826
Mercedes SLK R170 W202 W210 Module Control Unit SRS Sensor ECU Bosch A0018200826
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Part no. A2049009501
Fuse Box Mercedes W204 Rear SAM Relay Control Unit Module A2049009501
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Part no. A0305452632
Mercedes ML W163 270 CDI Automatic Transmission Control Module A0305452632
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Part no. A0005400650
Mercedes Sprinter W901 W638 Fuse Box Relay Control Unit Module A0005400650
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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 .