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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Make
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Subcategory
Condition
In Stock
Price
-5%
Part no. A2124401251
Door Cable Mercedes W212 Wiring Loom Front Right O/S Driver Side A2124401251
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A1695403505
Mercedes-Benz A-Class W169 Wiring Loom Cable Door Front Right O/S A1695400905
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1695456332
Control Unit Mercedes W169 W245 SAM Module Relay Fuse Box A1695456332
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519007500-17
Mercedes C207 E220 CDI OM651.911 BE Engine Unit Module ECU A6519007500 Automatic
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1728208710
Mercedes W176 W246 Roof Towing Alarm Sensor Switch Module A1728208710
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2044400638
Mercedes C204 Wiring Cable Harness Front Passenger Door Wiring Loom A2044400638
Promo price
£28.95
£24.61
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2118701085
Mercedes R171 Navigation Processor Multimedia Control Module Unit A2118701085
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009001810
Windshield Camera Mercedes W166 R172 Driver Assist Front Camera A0009001810
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2218208189
Mercedes W221 Antenna Amplifier Roof Rear Aerial Module Unit A2218208189
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2059006615
Mercedes W205 Windscreen Rain Sensor Front Control Unit A2059006615
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2465402005
Mercedes-Benz A W176 Front Right Door Cable Wiring Loom Harness O/S A2465402005
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2465401350
Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2465401350
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2118703126
Headlight Module Mercedes C209 W211 CLS C219 Level Control Unit ECU A2118703126
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2479002908
Mercedes W205 W213 Camera Module Front Windscreen Windshield Unit A2479002908
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1698209226
Door Control Module Mercedes W169 W245 Relay Unit Right Rear O/S A1698209226
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2229007109
SAM Module Mercedes C205 GLC X253 Coupe Rear Control Unit A2229007109
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2218703591
Mercedes W221 Comand 6-Changer CD Radio Head Unit DVD Navi A2218703591
Promo price
£759.95
£455.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2118705226
Mercedes W211 W219 Navigation Reader DVD CD Player Control Unit A2118705226
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2468201715
Mercedes C117 W176 Multimedia Interface Wiring Harness Loom A2468201715
Promo price
£42.95
£25.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A2055407401
Mercedes W205 Door Wiring Front Right O/S Harness Loom Cable A2055407401
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. rhd-A2075405305
Mercedes-Benz E A207 Front Right Door Cable Wiring Loom Harness O/S A2075405305
Promo price
£20.95
£17.81
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2075404207
Mercedes W204 M276 NOX Sensor Adapter Right O/S Harness Wiring Cable A2075404207
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2129005001
Relay Control Unit Mercedes W212 Rear SAM Electrical Fuse Module A2129060105
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2465411005
Battery Cover Mercedes C117 W176 W246 Box Trim Lid Panel Housing A2465411005
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2465408109
Door Wiring Mercedes W176 Loom Cable Rear Left Right N/O/S A2465408109
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2218707986
Mercedes W221 Keyless Go Entry Control Module Unit ECU A2218707986
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2189005607
Radio Head Unit Mercedes W207 W212 COMAND Navi CD Player Navigation A2189005607
Promo price
£284.95
£242.21
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2059005713
Door Module Mercedes W205 Front Left N/S Door Control Module Unit A2059005713
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
Part no. A1718204726
Mercedes R171 SRS Air Module Control Unit ECU A1718204726
£85.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2059006537
Mercedes C205 Coupe Air Bag Control Module ECU A2059006537
Promo price
£142.95
£85.77
Free delivery: Mar 3 – 10
If paid before 14:00
-15%
Part no. A2075406010
Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
Promo price
£61.95
£52.66
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2129060001-1
Mercedes C207 A207 W212 CD Player Radio Stereo Head Unit A2129060001
Promo price
£85.95
£51.57
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. rhd-A1775404103
Seat Wiring Mercedes C118 W177 W247 Passenger Side Cable Loom A1775404103
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
Part no. A2195406207
PDC Wiring Mercedes W211 W219 Front Bumper Parking Sensor Loom Cable A2195406207
£66.95
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0375450628
Mercedes W204 Cable Plug Wiring Loom Harness A0375450628
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2059009643
Mercedes W205 Telematics Bluetooth Module Control Unit ECU A2059009643
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2049003311
Mercedes C204 Stereo Radio Sat Navi Head Unit Multimedia A2049003311
Promo price
£47.95
£40.76
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0009058912
Mercedes W205 W213 C253 Battery Cable Negative Lead Wiring Harness A0009058912
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2215450801
Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801
Promo price
£189.95
£113.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. rhd-A1775409510
Door Wiring Mercedes W177 W247 Front Left Right N/O/S Cable Harness A1775409510
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1679001320
Ignition Module Mercedes V177 Electronic Ignition Switch Keyless Control Unit
Promo price
£56.95
£34.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1715408909
Mercedes R171 Rain Light Sensor Wiring Harness Cable A1715408909
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2038219751
Mercedes C-Class W203 Roof Alarm Motion Sensor Cover Trim Grey A2038219751
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2479001306
Mercedes W177 W247 SAM Module Body Comfort Control Unit A2479001306
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2195406007
Mercedes CLS W219 PDC Wiring Rear Bumper Parking Sensor Loom Cable A2195406007
Promo price
£47.95
£40.76
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2601503100
Mercedes W177 M260 Petrol Engine Wiring Cable Loom Harness A2601503100
Promo price
£142.95
£85.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0131541002-2
Mercedes Vito Viano W639 Alternator Generator Diesel 200A A0131541002
Promo price
£118.95
£101.11
Free delivery: Mar 3 – 10
If paid before 14:00
-40%
Part no. A2049060205-1
Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
Part no. A1695406945
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145
£28.95
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2118206185
Mercedes E S Class W211 W220 Telephone Hands Free Control Module A2118206185
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A6519007401-3
Mercedes W212 E250CDI Blue Efficiency OM651 204HP Engine ECU A6519007401 Key
Promo price
£161.95
£137.66
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2711504733
Mercedes W204 Injection Electrical Wiring M271 Petrol Engine Cable A2711504733
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. RHD-A2465401135
Door Harness Mercedes W176 W246 Cable Wiring Rear Left Right N/O/S A2465401135
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1669006710
Mercedes GLE W166 GLS X166 Sound Audio Amplifier Unit Harman Becker A1669006710
Promo price
£341.95
£290.66
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519003603-3
Mercedes Sprinter W910 OM651.958 143HP Engine ECU Kit A6519003603 Automatic
Promo price
£332.95
£199.77
Free delivery: Mar 3 – 10
If paid before 14:00
Part no. A2095420018
Mercedes-Benz C CLK Class W203 C209 ESP Yaw Rotation Rate Sensor A2095420018
£18.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1698209926
Mercedes W169 W245 ECU Air Control Unit Sensor Module A1698209926
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A6519065700
Mercedes W907 314 CDI Engine Alternator Generator Valeo A6519065700
Promo price
£142.95
£121.51
Free delivery: Mar 3 – 10
If paid before 14:00
-5%
Part no. A2218202910
Mercedes W221 Dashboard Instrument Cluster Panel Switch A2218202910
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2048200089
Mercedes-Benz C E Class W204 W207 Aerial Antenna Amplifier Unit A2048200089
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2218206889
Mercedes W221 Premium Audio Sound Amplifier Control Unit ECU A2218206889
£807.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519007500-18
Mercedes W212 E220 CDI 651.924 170HP Engine Unit ECU Kit A6519007500 2 Keys Lock
Promo price
£332.95
£199.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1644406910
Mercedes ML W164 Door Wiring Harness Rear Left Right N/O/S Loom A1644406910
Promo price
£32.95
£28.01
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2059009627
Front Air Module Mercedes W205 X253 SRS Control Unit ECU A2059009627
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2059007037
Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Fuse Unit A2059007037
Promo price
£56.95
£48.41
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1729002301
Mercedes SLK R172 Door Control Unit Module Front Left N/S A1729002301
Promo price
£28.95
£24.61
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2048200189
Mercedes-Benz C E Class W204 W207 Aerial Antenna Amplifier Unit A2048200189
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2129009128
Door Module Mercedes W207 W212 CLS W218 Front Left N/S Control Unit A2129009128
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2044401705
Mercedes S204 Door Wiring Loom Cable Rear Left Right N/O/S A2044401705
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. RHD-A2214408536
Mercedes W221 OM642 Diesel Battery Alternator Starter Wiring Harness A2214408536
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2539000100
Rain Light Sensor Mercedes X253 Windschield Sensor Module Unit A2539000100
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1718200786
Mercedes SLK R171 Stereo Radio CD Player Head Unit A1718200786
Promo price
£85.95
£51.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2079058802
Roof Antenna Mercedes W204 W212 Shark Aerial Antenna Cable Harness A2079058802
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1715405045
Mercedes SLK R171 Central Gateway Module ECU Control Unit A1715405045
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A9068205626
Door Module Mercedes W906 Front Door Right O/S Control Module A9068205626
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0005428923
Mercedes-Benz S-Class W220 Front Parking Sensor Display Indicator A0005428923
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0005429023
Mercedes-Benz S-Class W220 Front Parking Sensor Display Indicator A0005429023
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2059003222
Door Module Mercedes W205 W253 Control Unit Module Front Right O/S A2059003222
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. RHD-A2195400807
Battery Cable Mercedes W211 W219 Starter Alternator Wiring Harness A2195400807
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2045408905
Mercedes W204 Battery Starter Alternator Wiring Harness Cable A2045408905
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519005301-9
Mercedes C207 E250 CDI BE OM651.911 Engine Unit Module ECU Kit A6519005301 Key
Promo price
£189.95
£113.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1665400182-1
Mercedes C292 Fuse Box Cover Trim Panel Lid Black A1665400182
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2048700594
Radio Player Mercedes-Benz W204 COMAND Navi CD Head Unit A2048700594
Promo price
£113.95
£68.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2229000013
Door Module Mercedes W205 X253 Front Door Right O/S Control Unit A2229000013
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1775402111
Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775402111
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2218704787
Mercedes W221 Airbag Module Control Unit SRS Sensor ECU Bosch A2218704787
Promo price
£28.95
£24.61
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2218707786
Mercedes W221 Seat Module Control Unit Front Left Right N/O/S A2218707786
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A9079004105
Air Module Mercedes Sprinter W907 W910 Control Module ECU A9079004105
Promo price
£70.95
£42.57
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0065424220
Mercedes W164 W251 High Tone Horn Signal Right O/S A0065424220
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2129004901-1
Fuse Box Mercedes W212 Rear SAM Relay Control Unit Module A2129004901
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1775407932
Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932
Promo price
£47.95
£40.76
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2049060205-5
Mercedes W204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0009055504-TNG
Mercedes W205 W212 Front Rear PDC Parking Distance Sensor Tenorite Grey - 755
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A9066800214
Mercedes Sprinter W906 Radio Fan Adapter Cooling Control Unit Module A9066800214
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1695403733-1
PDC Wiring Mercedes W169 W245 Front Bumper Parking Sensor Loom Cable A1695403733
Promo price
£70.95
£60.31
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A6395480174
Mercedes-Benz Vito W639 Fuse Box Cooling Outlet Pipe Air Duct A6395480174
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0009050338
Mercedes W212 Multi-Purpose Windscreen Camera Control Unit Module A0009050338
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0325454232
Mercedes W203 Computer Gearbox Transmission Control Unit ECU A0325454232
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519007401
Mercedes W212 E250CDI Blue Efficiency OM651 204HP Engine Module ECU A6519007401
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
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 .