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.
Make
Category
Subcategory
Condition
In Stock
Price
-5%
Part no. A0025422619-3
Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 6977982-3
Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 4X 6977982
€23.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9153418-1
BMW 5 Series F10 F11 B Plus Distributor Box Front Battery Cable Unit 9153418
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A1665420018
Battery Cable Mercedes W176 Negative Lead Wiring Harness Control A1665420018
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2479007708
Rain Sensor Mercedes C118 W177 W247 Front Windscreen Light Unit A2479007708
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. A0009055504-TNG
Mercedes W205 W212 Front Rear PDC Parking Distance Sensor Tenorite Grey - 755
€23.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2055407616
Wiring Mercedes W205 Electrical Cable Transmission To Body A2055407616
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9247130
BMW F11 Touring Antenna Aerial Diversity Amplifier Unit 868 MHZ 9247130
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9187541-2
BMW E93 ECU Body Control Module H3 Junction Box 9187541
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 9291387
BMW X5 E70 X6 E71 Side View Camera Top Rear Control Unit Module 9291387
Promo price
€56.95
€34.17
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 8573257-6
BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8573257 Automatic
Promo price
€89.95
€76.46
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9377150
BMW 1 Series F20 Bluetooth Control Module Unit TCB ECE 9377150
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 5M5T14B192CA
Ford Transit Custom Relay 4-Pin Black 12V 40A FOMOCO SET 5M5T14B192CA
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. A9079008805
Mercedes Sprinter W907 W910 Head Unit Multimedia Controller Module A9079008805
€80.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6825835
BMW 2 Series F45 F46 Cable Wiring Jump Starter Base B+ Engine Battery 6809391
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A1179008700
Mercedes GLA X156 Air Module Safety Belt Tensioner Unit Control A1179008700
Promo price
€94.95
€56.97
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 2622610
Bluetooth Module BMW F10 F20 F23 F30 Teleservices GPS Telematics Control 2622610
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 4E0035654A
Audi A6 C6 MMI Multimedia Navigation Control Head Unit 4E0035654A
Promo price
€284.95
€170.97
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 4F0959794E
Audi A6 C6 Rear Door Right O/S Module Unit Control ECU 4F0959794E
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9124583-KAS
BMW E87 E90 Front Rear PDC Ultrasonic Parking Sensor Kaschmir Silver A72 9124583
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 5Q0971230AQ
Seat Leon 5F VW Golf Mk7 Alternator Wiring Harness Loom Cable 5Q0971230AQ
€23.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9115107
BMW X5 Series E70 E70N LCI Wiring Set Wash Water Container Cable Loom 9115107
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A1775407932
Mercedes W177 W247 Positive Battery Cable Lead Wire Starter A1775407932
Promo price
€56.95
€48.41
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A2135400414
Mercedes W213 C238 Fuse Box Relay Control Unit Module A2135400414
Promo price
€56.95
€34.17
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 4G0907401F-1
Audi A7 4G 3.0 TDI CDUC Quattro Engine ECU Kit BCM + Ignition + Key 04L907445F
Promo price
€398.95
€239.37
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2045402710
Mercedes W204 Wiring Loom Cable Door Rear Left Right N/O/S A2045402710
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 7855481
BMW F90 M5 F92 M8 Oil Level Sensor Wiring Harness Loom Cable 7855481
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6967184-1
BMW X5 E70 Positive Battery Cable Terminal Box Base B+ X6 E71 6967184
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2095453140
Fuse Box Holder Mercedes W209 Control Unit Mount Bracket CLK A2095453140
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A2049007508
Mercedes W204 Display Screen Monitor Radio Sat Nav Navigation Unit A2049007508
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A1645403130
Mercedes W164 Positive Battery Cable Wiring A1645403130
Promo price
€170.95
€102.57
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 7951288
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 7951288
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 2753721
Mini R55 R56 Electric Window Lifter Actuator Motor Door Left N/S 2753721
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9224275
BMW F01 F02 F07 GT Control Unit Air Module ECU 9224275
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A6681530979
Mercedes W168 A 160 CDI OM668 Engine Control Module A6681530979
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 7638477
Ignition Coil BMW E81 E87N LCI E90 E91 E92 F10 F11 Bosch 7638477
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 7123326
BMW E65 E66 E67 Rear Seat Headrest Adjustment Actuator Drive 7123326
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 6792659
BMW X5 E70 X6 E71 Control Unit Dynamic Drive Front Axle Suspension 6792659
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 8W0959595M
Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9866979
BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9866979
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A2465400082
Mercedes-Benz A-Class W176 Cover Equipment Electrical Fuse Box A2465400082
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 1508927
Mini Cooper S R52 R53 Positive Battery Cable Lead Wire Cable B 1508927
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 8385159
BMW 3 X3 Series E46 E83 Battery Cable Holder Mounting B Base 8385159
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6842986
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 6842986
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A1665400182-1
Mercedes C292 Fuse Box Cover Trim Panel Lid Black A1665400182
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A1729007600
Seat Module Mercedes W204 Front Right O/S Memory Control Unit A1729007600
Promo price
€47.95
€40.76
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9261612
Ultrasonic Parking Sensor BMW F20 F21 F23 F87 PDC Black 9261612
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 8582280-3
BMW F20 F21 116d N47N 116HP ECU Kit DDE 8582280 + Key + Lock + FEM Manual
Promo price
€284.95
€170.97
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 8W6971036G
Audi A4 B9 A5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036D
€42.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2046190048
Mercedes-Benz C W204 Rear Battery Support Holder Mount Bracket A2046190048
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9134631
Seat Module BMW E65 E66 Front Seat Control Unit ECU 9134631
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 8V4971687K
Audi A3 RS3 8V 5Dr Door Harness Loom Wiring Rear Left Right N/O/S 8V4971687K
€23.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2128270128-IRS
Roof Antenna Mercedes W212 Shark Trim Panel Iridium Silver - 775 A2128270128
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 8638198
BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 8625241 Manual
Promo price
€408.95
€245.37
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A1698209126
Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 8510137
BMW F10 F11 520d Diesel N47N 184HP Engine ECU Control Unit DDE 8510137 Automatic
Promo price
€113.95
€68.37
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 5A19AC3
BMW F40 ACSM5 Control Unit Air Module ECU Control Module 5A19AC3
Promo price
€37.95
€32.26
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A9079006906
Mercedes Sprinter W907 W910 Ignition Lock Control Unit Module ECU A9079006906
Promo price
€199.95
€169.96
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A2465400340
Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A2215450801
Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801
Promo price
€227.95
€136.77
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6946106
BMW 7 E65 E66 Passenger Seat Airbag Sensor Control Unit Module 6946106 6970899
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 5H0971104P
Volkswagen Golf Mk8 CD1 Parking Sensor Wiring Rear Bumper Loom Cable 5H0971104P
Promo price
€32.95
€28.01
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 8W6971035AN
Audi A5 F5 Front Door Wiring Harness Cable Driver's Side 8W6971035R
€56.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 8K0907279
Audi A5 8T Gateway Convenience Body Module Control Unit ECU 8K0907279C
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 5A0BD89
BMW F40 Power Distribution Fuse Box LIN Control Unit Module 5A0BD89
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 7522284-1
Mini Cooper One R50 R52 W10 1 Battery Cable Plus Pole 7522284
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 8507949
BMW X3 F25 X4 F26 N57 Fuel Injection Line Wiring Loom Harness Cable 8507949
€51.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 7518610
BMW E65 E66 E67 Earth Ground Battery Strap Cable 7518610
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9324779
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM LR-01 9324779
Promo price
€113.95
€96.86
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9137799
Door Wiring Mini Cooper R55 R56 R57 R58 R59 Passenger Cable 9137799
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9293242
BMW 3 7 Series F01 F02 LCI F34 Telematics Control Unit Module TCB ECE 9293242
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 8K0959795A
Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 9348358
BMW E60 Body Comfort Control Unit DDE Module ECU 9348358
Promo price
€94.95
€80.71
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6960219
Airbag Module BMW E65 E66 Airbag A-Pillar Sensor Left N/S Control Unit 6960219
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2139005213
Mercedes W213 Door Control ECU Module Front Left N/S A2139005213
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. A2059003729
Mercedes W205 Head Unit Radio CD Player Audio Sat Nav Multimedia A2059003729
€213.95
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A4475401440
Mercedes Vito W447 Fuse Box Relay Control Unit Module A4475401440
Promo price
€56.95
€34.17
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2059007123
Mercedes W176 W212 W246 Telematics Communication Control Unit Module A2059007123
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A2054404136
Mercedes W205 Battery Lead Wiring Loom Cable Hybrid Cable Harness A2054404136
Promo price
€47.95
€28.77
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. 7464750
Tailgate Smart Opener BMW F10 F11 X1 F48 X3 F25 Control Unit Module 7464750
Promo price
€37.95
€32.26
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9365305
BMW F20 F21 F22 F30 Telematics Comunication Control Module Unit ECU 9365305
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 13150706
Opel Corsa D Head Air Module Roof Side Curtain 13150706
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 8K0907063BE
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063K
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. 9287433
BMW F21 F22 Wiring Loom Door Drivers Side Front Right O/S 9340973
€23.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A1669005605
Door Module Mercedes W176 W246 Front Left N/S Control Unit VST A1669005605
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6900583
BMW E65 E66 Power Distribution Box 6900583
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
Part no. A0005408250
Fuse Box Mercedes W205 W213 C238 C253 Control Unit Module A0005408250
€56.95
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2045452647
Mercedes W204 Aerial Antenna Control Unit Bracket Holder Mount A2045452647
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A2129009908
Mercedes SLK R172 Fuse Box Relay Control Unit SAM Module A2129009908
Promo price
€127.95
€76.77
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A2118706189
Mercedes W164 W169 W211 W245 Disc CD Changer A2118706189
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 9258350
Air Module BMW F20 F21 F22 F30 F31 F32 Control Unit ECU 9258350
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 8W0419065D
Audi A4 B9 A5 F5 Power Steering Column Control Unit Module 8W0419065D
Promo price
€47.95
€28.77
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6820234
Air Conditioning Module BMW F20 F21 F30 F31 A/C Control Unit 6820234
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. 6887752
ICM Air Module BMW F20 F21 F22 F30 F31 Control Unit ECU 6887752
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. 9253477
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9253477
Promo price
€56.95
€34.17
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A0015452616
Mercedes W212 Transmission Control Unit Module VDO EGS 722.646 A0015452616
Promo price
€28.95
€24.61
Free delivery - Mon, Nov 10
If paid before 14:00
-5%
Part no. A2128300008
Fan Blower Mercedes W212 Comand Navi CD Control Unit Module Cooler A2128300008
Promo price
€23.95
€22.75
Free delivery - Mon, Nov 10
If paid before 14:00
-40%
Part no. A2649001200-4
Mercedes W177 A35 AMG 306HP 260.920 4Matic Engine ECU Control Unit A2649001200
Promo price
€227.95
€136.77
Free delivery - Mon, Nov 10
If paid before 14:00
-15%
Part no. A1729007500
Mercedes W204 Seat Module Memory Control Unit Front Left N/S A1729007500
Promo price
€51.95
€44.16
Free delivery - Mon, Nov 10
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 .