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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In Stock
Price
-5%
Part no. rhd-A2055405790
Mercedes W205 Battery Electrical Wiring Harness Ground Line A2055405790
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2115452647
Bracket Mount Mercedes W211 W219 Control Unit Module SAM Holder A2115452647
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2039060100
Mercedes CL203 Central Audio Navi Sat Display Screen Multi Media A2039060100
Promo price
£474.95
£403.71
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0035421019-1
Mercedes C117 GLA X156 ML W166 W176 W246 Relay 5 Pins Yellow Set A0035421019
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2065406045
Mercedes W206 Door Harness Cable Wiring Rear Left N/S A2065404116
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
Part no. A1669001211
Mercedes ML W166 GL X166 Air Module Control Unit ECU Module Sensor A1669001211
£113.95
Free delivery: Mar 02
If paid before 14:00
Part no. A0009004836
Mercedes W177 W247 Driving Dynamics Module Control Unit ECU A0009004836
£113.95
Free delivery: Mar 3 – 10
If paid before 14:00
Part no. A0008002919
Mercedes SL R231 Pneumatic Pump Compressed Air Reservoir A0008002919
£94.95
Free delivery: Mar 02
If paid before 14:00
Part no. A4475404534
Mercedes W447 Electronical Wiring Harness Parktronic Parking Aid A4475404534
£75.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2519061100
Mercedes W251 Central Multimedia Navi GPS Control Head Unit ECU A2519061100
Promo price
£265.95
£159.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2048700196-3
Mercedes W204 Radio Player COMAND Navi CD Head Unit A2048700196
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139002729-1
Mercedes W205 Sound Amplifier Rear Module Premium Sound E A2139002729
Promo price
£474.95
£284.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6421508091-1
Mercedes C219 CLS 320 642.920 224HP Engine Unit ECU Kit A6421508091 Key Lock
Promo price
£265.95
£159.57
Free delivery: Mar 02
If paid before 14:00
Part no. A2214407109
Mercedes C216 W221 Glovebox Storage Compartment Wire Harness Loom A2214407109
£13.95
Free delivery: Mar 02
If paid before 14:00
Part no. RHD-A1185408215
Mercedes CLA X118 Door Wiring Harness Keyless Front Left Right N/O/S A1185408215
£47.95
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2095453140
Fuse Box Holder Mercedes W209 Control Unit Mount Bracket CLK A2095453140
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A2124404138
Positive Battery Cable Mercedes S212 C218 X218 Starter Alternator A2124404138
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6461502072-1
Mercedes W204 C220CDI 646.811 170HP Engine ECU Kit Ignition + Key A6461502072
Promo price
£284.95
£170.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. RHD-A2135407173
Mercedes W213 C238 Battery Terminal Positive Cable Wiring OM656 A2135407173
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2055400696
Mercedes W205 Battery Electrical Wiring Harness Ground Line A2055400696
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A1679009330
Mercedes C118 W167 W177 W243 W247 Ignition Control Module Unit ECU A1679009330
£237.95
Free delivery: Mar 3 – 10
If paid before 14:00
-5%
Part no. A1669004002
Door Module Mercedes C117 W176 W246 Front Left N/S Control Unit A1669004002
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009007413
Mercedes W206 Fuel Pump Module Control Unit A0009007413
Promo price
£89.95
£53.97
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2128320400
Air Duct Mercedes W212 Cooler Comand Navi CD Control Unit Module A2128320400
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A4475450069-1
Mercedes Vito W447 Fuse Box Compartment Housing Cover A4475450069
£28.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009005209
Mercedes W166 Blind Spot Zone Control Module Radar Sensor Unit ECU A0009005209
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2469055003-1
Ignition Switch Mercedes W167 W177 W247 Lock Control Unit Module A2469055003
Promo price
£32.95
£28.01
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6079002200-3
Mercedes W176 A180 CDI OM607.951 109HP Engine Unit ECU A6079002200
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1664400333
Mercedes ML W166 Wiring Harness Cable Suspension Valve A1664400333
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0009003206
Mercedes W205 W222 Fuel Pump Module Control Unit A0009003206
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2044402234
Mercedes W204 Coupe Door Wiring Front Right O/S Door Cable Harness A2044402234
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2124401851
Mercedes W212 Door Wiring Loom Cable Rear Left Right N/O/S A2124401851
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2048700185
Mercedes W204 Bluetooth Control Unit Module Media Interface ECU A2048700185
Promo price
£85.95
£73.06
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2189060003
SD Card Mercedes X156 A207 C207 Garmin Map Pilot Navigation Europe A2189060003
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2129060005-1
Mercedes W212 Fuse Box Module Rear Relay Electric Control Unit SAM A2129060005
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2125408535
Mercedes W212 Centre Console Dashboard Dash Cable Wiring Loom A2125408535
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A2135407144
Mercedes W213 Front Left N/S Door Electrical Wiring Harness A2135407144
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2045409813
Battery Cable Mercedes W204 W207 Positive Wiring Harness Loom A2045409813
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139068801-1
Mercedes W205 W213 Fuse Box Rear SAM Module Electrical Unit A2139068801
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A6512012009
Alternator Support Bracket Mercedes W212 OM651 Belt Tensioner Holder A6512012009
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2539059800
Mercedes W205 Lid Boot Trunk Tailgate Smart Opener Control Module A2539059800
Promo price
£32.95
£28.01
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6089001500
Mercedes W177 A180d 608,915 116HP Engine Control Unit A6089001500 Automatic
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1569057900
Mercedes W176 Aerial Antenna Amplifier A1569057900
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A9075450100-1
Fuse Box Mercedes Sprinter W907 W910 Relay Box Fuse Box Module A9075450100
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2129002313
Mercedes W212 CLS C218 Radio Multimedia Display Monitor Screen A2129002313
Promo price
£113.95
£68.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1669005417
Mercedes X117 Communication Telematics Control Module Unit ECU A1669005417
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
Part no. A2129001506
Mercedes S212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129001506
£37.95
Free delivery: Mar 02
If paid before 14:00
Part no. A2129006417-1
Mercedes W207 W212 Radio Head Unit CD Player Control Panel Switch A2129006417
£75.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2189015200
Mercedes X218 Air Module Control Unit ECU Module A2189015200
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2055402480
Mercedes W205 Diesel Engine Starter Alternator Electrical Cable M264 A2055402480
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1779069601
Mercedes W177 W247 Fuse Box Front Relay Engine Control Unit Module A1779069601
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2709060026-1
Starter Motor Mercedes W176 W246 Engine Starter Unit 12V Denso A6459060300
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2535407630
Mercedes X253 Rear Bumper Cable Wiring Loom PDC Harness A2535407630
Promo price
£284.95
£242.21
Free delivery: Mar 02
If paid before 14:00
Part no. A2135407744
Mercedes W213 Door Ambient Light Cable Harness Wiring Rear Right O/S A2135407744
£37.95
Free delivery: Mar 02
If paid before 14:00
Part no. A1185404415
Mercedes CLA X118 Door Wiring Harness Keyless Front Left Right N/O/S A1185408215
£32.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519007003-4
Mercedes X156 GLA 220 OM651.930 170HP 4Matic Engine ECU A6519007003 Automatic
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0004461160
Mercedes Sprinter W906 FleetBoard Onboard Time Recorder Control Unit A0004461160
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519000700-5
Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU Kit A6519000700 Key Lock
Promo price
£332.95
£199.77
Free delivery: Mar 02
If paid before 14:00
Part no. A1649063500
Mercedes ML W164 Head Unit Sat Nav GPS CD Audio Radio Player A1649063500
£237.95
Free delivery: Mar 3 – 10
If paid before 14:00
-5%
Part no. A2229001712
Door Module Mercedes W205 X253 Front Door Right O/S Control Module A2229001512
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2218706887
Mercedes W221 Head Unit Multimedia TV Player CD Changer Inverter A1679001014
£474.95
Free delivery: Mar 3 – 10
If paid before 14:00
-15%
Part no. A2469000012-2
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
Promo price
£142.95
£121.51
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139001423
Mercedes W470 Bluetooth Module Control Unit A2139001423
Promo price
£99.95
£59.97
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2125407605
Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2125407605
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2535400601
Mercedes X253 Starter Motor Wiring Harness Cable A2535400601
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2229001512
Door Module Mercedes W205 X253 Front Door Left N/S Control Module A2229001512
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6401504879
Mercedes W245 B 180 CDI OM640.940 109HP Engine Unit ECU Manual A6401504879
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1665400080
Fuse Box Cover Mercedes ML W166 C292 SAM Module Top Cap Panel Black A1665400080
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2469050201
Mercedes C117 X156 Antenna Amplifier Control Unit Module A2469050201
Promo price
£28.95
£24.61
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2213201058
Mercedes R231 Valve Block Air Suspension Control Unit A2123200358
Promo price
£170.95
£102.57
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A4158600602
Mercedes W415 Air Module Control Unit ECU Module A4158600602
Promo price
£94.95
£80.71
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2075402308
Mercedes C207 Front Center Console Point Cable Wiring Loom Harness A2075402308
Promo price
£61.95
£52.66
Free delivery: Mar 02
If paid before 14:00
Part no. A2479003506
Mercedes W177 Front Seat Module Control Unit Memory Driver's Side A2479003506
£170.95
Free delivery: Mar 3 – 10
If paid before 14:00
-15%
Part no. RHD-A2741509088
Mercedes W213 Petrol M274 Engine Wiring Loom Harness A2741509088
Promo price
£189.95
£161.46
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1698204515
Media Plug Mercedes W169 W245 Multimedia Connection Cable Wire A1698204515
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2535401401
Mercedes X253 Battery Wiring Harness Cable Tray Clamp A2535401401
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2129007202
Windows W212 Parktronic PDC Parking Assist Distance Control Unit A2129007202
Promo price
£61.95
£37.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2048213789
Mercedes W204 Touring Trunk Lid Wiring Cable Trim Guide Channel Boot A2048213789
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2215408045
TPM Module Mercedes W221 S500 C216 Tire Pressure System Module RDK A2215408045
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
Part no. A2649001800
Mercedes C205 W213 W253 W257 Alternator Generator M264 Engine A2649001800
£284.95
Free delivery: Mar 3 – 10
If paid before 14:00
-40%
Part no. A0009052200
Windscreen Camera Mercedes W209 W212 W221 Front Control Unit Module A0009052200
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2118702189
Mercedes W211 Radio Head Unit CD Audio Player Control Unit A2118702189
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519000503-2
Mercedes W212 E220CDI BlueTec OM651.924 177HP Engine ECU A6519000503 Automatic
Promo price
£113.95
£68.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2465406014
Mercedes W176 Front Left Right N/O/S Seat Wiring Harness
Promo price
£191.95
£115.17
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2125400030
Battery Starter Wiring Alternator Mercedes W212 W218 Harness Cable A2125400030
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1648204226
Mercedes X164 Third Seat Row Control Unit Power Folding Module FSSG A1648204226
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2719000700
Mercedes R171 SLK200 Kompressor M271.954 Engine Control Unit ECU A2719000700
Promo price
£151.95
£91.17
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2215402062
Fuel Pump Module Mercedes ML W164 W204 Petrol Control Unit ECU A2215402062
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1775408027
Mercedes W177 M282 Petrol HV Battery 48V Wiring Harness Cable Loom A1775408027
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6429005301
Mercedes W166 W221 AdBlue Control Unit Module ECU A6429005301
Promo price
£123.95
£74.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2188203115
Mercedes CLS C218 Media Interface Wiring Harness Loom Cable A2188203115
Promo price
£94.95
£80.71
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2075409334
Mercedes-Benz E-Class W207 Cabrio A207 Battery Ground Cable Wiring Mass Lead
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2048200104
Sun Roof Wiring Mercedes W204 Panoramic Roof Motors Drive Harness A2048200104
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1729015805
Mercedes SLK R172 Airbag Module SRS Control Unit ECU A1729015805
Promo price
£56.95
£48.41
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2829003300-2
Mercedes W177 A200 282.914 163HP Petrol ECU Kit A2829003300 Key BCM Automatic
Promo price
£474.95
£284.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2055404797
Battery Cable Mercedes GLC X253 Starter Motor Alternator Wiring A2055404797
Promo price
£42.95
£25.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2059001217
Surround Camera Mercedes W205 W447 View Control Unit Module A2059001217
Promo price
£151.95
£91.17
Free delivery: Mar 02
If paid before 14:00
Part no. A0009054911
Mercedes C118 W177 OPF GPF Exhaust Pressure Sensor M260 A0009054911
£42.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2135409616-1
Mercedes Sprinter W910 Battery Sensor Negative Terminal Cable Wiring A2135409616
Promo price
£23.95
£14.37
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 .