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.
GB
Make
Category
Subcategory
Condition
In Stock
Price
-40%
Part no. A1669007814
Mercedes W166 W176 Navigation Screen Head Unit Sat Nav Display A1669007814
Promo price
£94.95
£56.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2128201689
Mercedes W212 Antenna Amplifier Aerial Module Unit A2128201689
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A1644400040
Mercedes W164 Daytime Running Lights Wiring Harness Cable Front A1644400040
£37.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2039000100
Mercedes CL203 CLC Head Unit CD Player Radio Audio Controller Unit A2039000100
Promo price
£94.95
£56.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2049009410-1
Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009410
Promo price
£51.95
£44.16
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2215450601
Mercedes W221 Dashboard Fuse Box Front Left N/S Control Module A2215450601
£18.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2469006816
Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469006816
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. rhd-A6394402536
Mercedes W639 Battery Starter Alternator Wiring Harness Cable A6394402536
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2135402531
Mercedes W213 Door Wiring Harness Loom Front Right O/S A2135402531
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1698206726
Mercedes-Benz W245 ECU Control Unit Sensor Module Airbag A1698206726
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2129003408
Mercedes W204 W221 Fuel Pump Module Control Unit A2129003408
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A0009057402
Mercedes-Benz S W221 Front Camera Video Night View Adaptive Highbeam Unit
Promo price
£75.95
£45.57
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2469002616
Mercedes W176 W246 PDC Parking Distance Sensor Control Unit Module A2469002616
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. rhd-A2075400340
Battery Fuse Box Mercedes W204 Control Unit Module SAM A2075400340
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2139006016
Mercedes W213 C238 Air Suspension Level Control Unit Module Airmatic A2139006016
Promo price
£47.95
£40.76
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2046801231
Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046801231
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1669004402
Door Module Mercedes W176 W246 Front Right O/S Control Unit Module A1669004402
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2049004106
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049004106
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6401508334-1
Engine Control Unit Mercedes W245 B200 CDI OM640.941 140HP ECU A6401508334
Promo price
£85.95
£51.57
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2189000104
Mercedes CLS X218 Parktronic PDC Parking Assist Control Module A2189000104
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2048204697-1
Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2048204697
Promo price
£189.95
£161.46
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1776204701
Battery Holder Mercedes C118 W177 W247 Tray Frame Base A1776204701
Promo price
£28.95
£24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1729056500
Mercedes-Benz A B Class W176 W246 Aerial Antenna Cable A1729056500
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6519007500-22
Mercedes C204 C250CDI 651.911 Engine ECU Kit A6519007500 Ignition + 2 Keys
Promo price
£237.95
£142.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1679003504
Ignition Switch Mercedes W177 Electronic Anti Theft Control Module A1679003504
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2059055211
Mercedes W117 W154 W205 W213 W217 Tailgate Open Switch Sensor Rear A2059055211
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. rhd-A2124407558
Alternator Wiring Mercedes W212 C218 Diesel OM651 Alternator Fuse Box Harness
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6229000500
Mercedes W447 OM622.951 Engine Control Unit Module ECU Kit A6229000500 Manual
Promo price
£189.95
£113.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1779004705
Head-Up Display Mercedes W177 C118 Dashboard Dash Screen Monitor A1779004705
Promo price
£94.95
£80.71
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2048200015
Telephone Cable Mercedes W204 C207 W212 Wiring Adapter Line A2048200015
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A4475409882
Mercedes Vito W447 Battery Bracket Mount Holder Support A4475409882
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A6519005301-5
Mercedes W212 E220CDI BlueEFFICIENCY OM651.924 170HP Engine ECU Unit A6519005301
Promo price
£47.95
£40.76
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1645400350-1
Mercedes ML W164 Fuse Prefuse Box Jump Start Terminal A1645400350
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2468200035
Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
Promo price
£28.95
£24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2219007202
Mercedes-Benz S-Class W221 Front Fuse Box Control Unit Module SAM A2219007202
Promo price
£151.95
£91.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2469052602
Dashboard Panel Mercedes W176 W246 Switch Dynamic Select Start/Stop A2469057902
Promo price
£28.95
£17.37
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1569005303
Mercedes W176 Body Control Module BCM Control Unit ECU A1569005303
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2049000902-2
Mercedes W204 Rear SAM Control Unit Module A2049000902
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2059001311
Mercedes W205 Door Module Front Left N/S Control Unit ECU A2059001311
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2469003014
Mercedes W176 W231 W246 Electric Parking Brake Control Unit Module A2469003014
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A9065403527-1
Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9065403527
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1645403572-1
Mercedes W164 W251 Fuse Box Relay Module Control Unit A1645403572
Promo price
£142.95
£121.51
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6461502734-1
Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic
Promo price
£142.95
£85.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2045402210
Mercedes W204 Front Door Ribbon Electrical Cable Wiring Loom A2045402210
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A9065400041
Mercedes Sprinter W906 Battery Cable Negative Lead Wiring Harness A9065400041
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9240647
BMW F02 Television Tuner TV Receiver Control Unit Module 9240647
Promo price
£189.95
£113.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1695403945-1
Mercedes W169 W245 Central Gateway Control Unit Module ECU A1695403945
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2048210851
Mercedes W212 Windscreen Rain Sensor Temperature Humidity Unit A2048210851
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2045452647
Mercedes W204 Aerial Antenna Control Unit Bracket Holder Mount A2045452647
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0025428419
Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428419
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2469005315
Transmission Module Mercedes W176 OM607 Diesel Control Unit A2469005315
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2218708326
Mercedes W221 Rear View Backup Camera Control Unit Module A2218708326
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2215400205
Mercedes W221 Brake Pad Wear Indicator Sensor Front Left Right N/O/S A2215400205
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2198202326
Mercedes CLS W219 Door Module Front Left N/S Control Unit Module A2198202326
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2214409035
Mercedes-Benz S W221 Wiring Loom Cable Door Rear Left Right N/O/S A2214409035
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 277605XB0A
Heater Module Mercedes W470 Nissan Navara D23 Air Conditioning Unit 277605XB0A
Promo price
£142.95
£85.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2049000902
Fuse Box Mercedes W204 Rear SAM Relay Fuse Box Control Module A2049000902
Promo price
£47.95
£28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. rhd-A2129063102-2
Fan Blower Mercedes W212 Comand Navi CD Control Unit Module Cooler A2129063102
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. rhd-A2135400124
Mercedes W213 Fuse Relay Electrical Box Housing Covering Panel A2135400124
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A0009004434-2
Parking Control Module Mercedes C118 W177 W247 PDC Bluetooth Unit A0009004434
Promo price
£118.95
£71.37
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. A2035409213
Mercedes W203 Door Wiring Harness Front Left Right N/O/S Wiring Loom A2035409213
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2118209126
Mercedes-Benz C E Class W203 W211 Alarm Anti Theft System Control Module Unit
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6519007600
Mercedes W176 A180 CDI BlueEFFICIENCY OM651.901 Engine Module ECU A6519007600
Promo price
£56.95
£34.17
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2059001611
Mercedes W205 Door Module Front Right O/S Control Unit ECU A2059001611
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2219009903
Mercedes-Benz S-Class W221 Rear Door N/O/S Control Unit Module A2219009903
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A9064402341
Positive Cable Mercedes W906 OM651 Battery Starter Alternator Plus A9064402341
Promo price
£28.95
£24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2128204926
Mercedes W212 Crash Impact Air Module Sensor Front Unit A2128204926
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0015424423
Parktronic Screen Mercedes W207 W212 Front Parking Sensor Display A0015424423
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A9109053300
Mercedes Sprinter W910 Battery Sensor Negative Terminal Cable A9109053300
Promo price
£42.95
£25.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2129001606
Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001606
Promo price
£42.95
£25.77
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. rhd-A2215403410
Mercedes W221 Negative Battery Terminal Cable Wiring Lead A2215403410
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1665420218
Negative Cable Mercedes W169 W204 W212 Battery Boot Negative Lead Sensor
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2475400700
Mercedes W177 Rear Axle Wheel RPM Speed Left N/S Sensor Wire Harness A2475400700
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2465451500
Mercedes-Benz A-Class W176 Control Unit Bracket Holder Mount A2465451500
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2044401005
Mercedes-Benz C W204 Rear Left N/O/S Right Door Wiring Loom Harness A2045407609
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A7893432511
Mercedes H243 EQA Plate Mount Support Holder Bracket A7893432511
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2129009605
Fuse Box Mercedes W204 W212 Diesel Front Sam Control Module Unit A2129009605
Promo price
£61.95
£52.66
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2129004402
Door Module Mercedes W212 E-Class Front Left N/S Control Unit A2129004402
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2139004625
Mercedes W213 C238 C253 C257 Air Module Control ECU Sensor A2139004625
Promo price
£70.95
£42.57
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6549009900
Glow Plug Relay Mercedes W177 Diesel OM654 Preglow Module A6549009900
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2059065806
Mercedes W205 W213 C253 Fuse Box Front Relay Control Unit Module A2059065806
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2389000401
Mercedes C238 E53 Coupe Window Lifter Comfort Module Unit Rear A2389000401
Promo price
£28.95
£17.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1698204185
Mercedes A B Class W169 W245 Airbag System Control Unit Module ECU A1698204185
Promo price
£37.95
£32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1769980001
Door Wiring Plug Mercedes W176 W246 Cable Lead Connector A1769980001
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2475400600
Mercedes W177 Rear Axle Wheel RPM Speed Right Sensor Wire Harness A2475400600
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2178706189
CD Changer Mercedes W164 CD Changer 6 Disc Player A2178706189
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2215403930
Mercedes-Benz W221 Positive Battery Plus Pole Terminal Lead Cable A2215403930
£13.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. rhd-A1665420418
Mercedes W212 Negative Cable Battery Terminal Wiring A1665420418
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A9106863000
Mercedes W910 Battery Plastic Top Cover Left N/S A9106863000
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A0055461240
Mercedes W169 W245 Distributor Box Front Control Unit Module A0055461240
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2218708992
Mercedes W221 C216 Telephone Bluetooth Connection Control Module A2218708992
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2115453532
Mercedes W211 Body Control Module BCM Comfort Module Unit A2115453532
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. RHD-A2218205389-1
Mercedes W221 Central Audio Navi Sat Display Screen Multimedia A2218205389
Promo price
£51.95
£31.17
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. rhd-A2125400832
Door Wiring Mercedes W212 Cable Front Left N/S Door Harness Loom A2125400832
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2128205026
Mercedes W212 Impact Crash Sensor Door Left Right A2128205026
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A6569060300
Mercedes W213 C238 Starter Motor Engine Actuator Unit OM656 Diesel A6569060300
Promo price
£47.95
£40.76
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2721530692
Mercedes A209 CLK290 M272.940 231HP Engine Control ECU A2721530692 Automatic
Promo price
£260.95
£156.57
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A0009007009
Mercedes Vito W447 Diesel Adblue Module Control Unit ECU A0009007009
Promo price
£56.95
£34.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1765406005
Mercedes X156 Wiring Harness Loom A1765406005
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
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 .