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
Category
Subcategory
Condition
In Stock
Price
-40%
Part no. rhd-A2055407812
Mercedes W205 Battery Cable Starter Alternator Wiring Harness A2055407812
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2214403913
Mercedes W221 Door Wiring Front Left N/S Harness Loom A2214403913
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2139005728
Mercedes W213 W238 W257 Head Radio Navigation Switch Control Unit A2139005728
Promo price
£94.95
£80.71
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0035421019
Relay Mercedes C117 GLA X156 ML W166 W176 W246 5 Pins Yellow A0035421019
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2465400950-1
Mercedes C117 W176 W246 Fuse Box Power Distribution Box A2465400950
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A9075409682
Mercedes Sprinter W907 W910 Fuse Box Relay Box Fuse Box Module A9075409682
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2075451740
Mercedes-Benz A207 W207 Cabrio Control Unit Module Bracket Holder A2075451740
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2128270228-DWM
Mercedes W212 Roof Antenna Shark Diamond White Metallic - 799 A2128270228
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2056186000
Mercedes W205 W238 Rear Battery Holder Bracket Mount Strap Clamp A2056186000
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1729001405
Mercedes R172 Player Radio Audio Navi Head Unit A1729001405
Promo price
£303.95
£258.36
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2049009301
Mercedes W212 Media Interface Control Unit Module Multimedia A2049009301
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0005455816
Automatic Gearbox Module Mercedes W207 W210 EGS3 Control Unit ECU A0005455816
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2048708626
Mercedes W212 Media Interface Control Module Unit ECU A2048708626
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2168200089
Mercedes CL C216 Antenna Amplifier Control Unit Module A2168200089
£94.95
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2118705526
Mercedes W219 Motorola Telephone Control Module DC UHI MOST A2118705526
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0038208426
Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A6409005000-1
Mercedes-Benz W169 A160 CDI Engine Control Unit ECU Kit A6409005000 + Key Manual
Promo price
£284.95
£242.21
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A9078209600
Mercedes W907 L2H2 Electric Radio Player Head Unit A9078209600
Promo price
£180.95
£153.81
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2124405533
Mercedes W212 Wiring Loom Cable Door Front Left Right N/O/S A2124405533
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2118701585
Rain Sensor Mercedes W211 W219 Windscreen Control Unit Module A2118701585
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
Part no. A0009058104-1
Mercedes W176 W205 W246 GLC C253 Front Bumper Sensor Radar Unit A0009058104
£237.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1729019102
Mercedes SLK R172 SRS Control Module Belt Tensioner Bag Sensor Unit 1729019102
Promo price
£51.95
£31.17
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. RHD-A2075403402
Mercedes W207 M276 Petrol Engine Starter Cable Harness Wiring A2075403402
Promo price
£118.95
£101.11
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A7895407300
Mercedes H243 EQA Cable Wiring Harness Loom A7895407300
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1775409001
Mercedes W177 W247 Front Left Right N/O/S Door Card Wiring Loom A1775409001
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2048700196
Radio Player Mercedes W204 COMAND Navi CD Head Unit A2048700196
Promo price
£61.95
£37.17
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2711532291-1
Mercedes S203 C180 143HP Kompressor M271.946 Engine ECU A2711532291 Automatic
Promo price
£218.95
£131.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139008530
Mercedes W213 W447 Transmission Gearbox Control Unit Module ECU A2139008530
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A9079005303-1
Mercedes Sprinter W907 W910 Control Unit Module ECU A9079005303
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1698209126
Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A4479006000
Mercedes W447 Front Door Module Control Unit ECU Front Left N/S A1669013901
£75.95
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1698206926
Door Module Mercedes W169 W245 Front Left N/S Control Unit A1698206926
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
Part no. A2219006404
Mercedes W221 Door Module Front Right O/S Control Unit ECU A2219006404
£113.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2214404513
Mercedes W221 Door Wiring Front Door Right O/S Wire Loom A2214404513
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2125400080
Mercedes W212 Fuse Box Housing Relay Unit Module A2125400080
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2129010700
Mercedes W212 ECU Control Unit Sensor Module Airbag A2129010700
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2460990516
Radio Head Unit Mercedes W176 Media Player Navigation Hazard Switch A2460990516
Promo price
£161.95
£137.66
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A1705400182
Mercedes SLK R170 Control Unit Module ECU Cover Box Housing Bracket A1705400182
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2389000705
Mercedes C118 W177 W205 Bluetooth Control Module Mobile Phone ECU A2389000705
£379.95
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A4709820700
Mercedes W470 Glow Plug Relay Module Unit A4709820700
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1648705594
Mercedes ML W164 Radio Player Audio Stereo CD Player Head Unit A1648705594
Promo price
£237.95
£142.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A6261500075
Mercedes W205 Alternator Protective Cover Metal Sheet A6261500075
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2479009312
Mercedes W910 Telematics Module Communication Blutooth Control A2479009312
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A6398200642
Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6398200642
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2709002100-17
Mercedes C117 W176 W246 A200 BE M270 156HP Engine ECU Kit A2709002100 Automatic
£189.95
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. rhd-A2216840137
Mercedes W221 Control Unit Module Holder Legroom Support Bracket A2216840137
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1679000500
Mercedes W177 W247 Driver's Seat Heating Control Unit Module ECU A1679000500
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0005457816
Mercedes SLK R171 Automatic Gearbox Control Module Unit ECU A0005457816
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1679050200
Mercedes A238 Tailgate Boot ECU Control Unit Module A1679050200
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2118206485
Nokia Module Mercedes W220 W211 Phone Control Unit A2118206485
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6401500100
Mercedes W169 A160 CDI OM640.942 82HP Engine Control ECU A6401500100 Automatic
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2139005728-1
Mercedes W213 W238 Head Unit Switch Radio Navigation Control Knob A2139005728
Promo price
£104.95
£89.21
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A9079008703
Mercedes W907 W910 CD Player Audio Stereo Radio Head Unit A9079008703
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A2135403939
Mercedes X253 Dashboard Fuse Box Control Module Power Distribution A2135403939
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2215408235
Mercedes W221 Door Wiring Front Left Right N/O/S Harness Loom A2215408235
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1649100075
Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2075454440
Mercedes-Benz E-Class A207 Convertible Control Unit Module Bracket Trunk
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2118701885
Mercedes ML W164 Control Unit Module DC UHI MOST A2118701885
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A4709007402
Mercedes X250 W470 Gateway Control Unit Module ECU A4709007402
Promo price
£137.95
£82.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2239001726
Mercedes W206 W223 Door Control Unit Passenger Door Module A2239001726
Promo price
£47.95
£40.76
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2519000800
Mercedes W251 PDC Parking Assistant Control Unit Module ECU A2519000800
Promo price
£47.95
£40.76
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2465410100
Mercedes W176 W246 Battery Cover Accumulator Trim Panel Lid A2465410100
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2465406432
Battery Cable Mercedes W176 W246 Negative Lead Wiring Harness A2465406432
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2469008113
Mercedes GLE X156 4Matic Transfer Control Unit Module ECU A2469008113
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1765401404
Door Cable Mercedes W176 Wiring Loom Front Right Door O/S A1765401404
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2079001300
Mercedes A207 Sound Audio Amplifier Unit Harman Becker A2079001300
Promo price
£275.95
£165.57
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A6394407810
Wiring Loom Mercedes W639 Vito Cable Front Door Left Right N/O/S A6394407810
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0025426619
Mercedes C215 C216 W220 W221 R230 Relay Tyco Unit Module A0025426619
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2075401102
Mercedes W207 A207 C207 Loudspeaker Cable Wiring Loom Harness
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1779050703
Mercedes V177 Radio Remote Alarm Ignition Key Fob Button A1779050703
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139058001
Mercedes C238 W213 Trunk Lid Handsfree Switch Sensor A2139058001
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2229063701
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063701
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139006911
Mercedes W213 C238 Telematic Charging Phone Control Module A2139006911
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2475451000
Mercedes W177 W247 Battery Bracket Battery Mount Holder Trim A2475451000
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2118701289
Mercedes W211 CD Player Radio Audio Head Control Unit Module A2118701289
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1775406501
Door Wiring Mercedes W177 W247 Driver Side Cable Harness Loom A1775406501
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2059008204
Mercedes W205 SAM Module Fuse Box Relay Control Unit A2059008204
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A2044403213
Mercedes W204 OM642 Wiring Harness Fuse Box Alternator Starter Cable A2044403213
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2709002100-9
Mercedes W176 A160 W246 B160 270.910 102HP Engine ECU Unit A2709002100 Manual
Promo price
£94.95
£56.97
Free delivery: Mar 3 – 10
If paid before 14:00
Part no. A2609000900-1
Mercedes W177 A35 AMG M260 306HP Engine Control ECU Kit A2609000900 Automatic
£474.95
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2465408113
Mercedes W246 Wiring Loom Cable Rear Cigar Lighter A2465408113
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1179001702
Mercedes GLA X156 Interior SRS Air Module Seat Belt Tensioner A1179001702
Promo price
£108.95
£65.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A2535402510
Door Wiring Mercedes X253 Front Left N/S Door Harness Loom A2535402510
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139003008
Mercedes W213 SAM Fuse Box Comfort Control Module Unit ECU A2139003008
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2055451800
Mercedes W213 Interior Part Relay Fuse A2055451800
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A4475402105
Mercedes Vito W447 Battery Cable Starter Alternator Wiring Harness A4475402105
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
Part no. A2709002100-16
Mercedes W176 W246 A180 B180 BE 270.910 122HP Engine ECU A2709002100 Automatic
£123.95
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2215403108
Mercedes W221 Door Wiring Front Right O/S Harness Loom Cable A2215403108
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0009828023
Fuse Relay Mercedes C117 W166 W176 W205 X253 Black 4 Pin 12V A0009828023
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2205401224
Mercedes CL S Class C215 W220 Fuse Box Unit Front Left ECU A2205401224
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2475450601
Amplifier Bracket Mercedes C118 W177 W247 Audio Unit Holder Mount A2475450601
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2139002909
Mercedes W213 Head Unit Navigation Nav Radio Control Unit A2139002909
Promo price
£370.95
£315.31
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A4475406453
Battery Cable Mercedes Vito W447 Diesel OM651 Alternator Wiring A4475406453
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
Part no. A2229007111
Mercedes W205 W222 Keyless Go Entry Module Control Unit ECU A2229007111
£18.95
Free delivery: Mar 02
If paid before 14:00
Part no. A2079004300-1
Mercedes A207 Convertible Roof Control Module Unit ECU Soft Top A2079004300
£132.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009001705
Mercedes C117 PDC Parking Sensor Control Module Unit ECU A0009001705
Promo price
£51.95
£31.17
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A4709002602
Mercedes W470 Tyre Pressure TPMS Control Unit Module ECU 407405XA0A A4709002602
Promo price
£37.95
£32.26
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2125409110
Console Lightning Mercedes W212 Centre LED Selector Cable Wiring A2125409110
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519007401-9
Mercedes W212 E250CDI Blue Efficiency OM651.924 204HP Engine ECU A6519007401 Key
Promo price
£161.95
£97.17
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 .