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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Price

Part no. A1648200485
Mercedes ML W164 Door Module Front Right O/S Control Unit ECU A1648200485
PLN 75.95
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A2661503133
Engine Wiring Mercedes W169 W245 M266 Petrol Cable Loom Harness A2661503133
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9144260
BMW F01 F02 F20 F21 Interior Antenna Aerial Convenience Comfort Access 9144260
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

Part no. A4539050301
Smart Fortwo C453 Interior Temperature Sensor Cable Wiring A4539050301
PLN 42.95
Delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 5G0971104L
VW Volkswagen Golf Mk7 Wiring Loom PDC Rear Harness Parking Sensor 5G0971104L
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A2469055003-1
Ignition Switch Mercedes W167 W177 W247 Lock Control Unit Module A2469055003
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 9274570
BMW F20 Head Unit Navigation GPS Sat Nav Infotainment DAB High F10 F30 9274570
PLN 759.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 3450286
BMW X3 E83 LCI N47 Earth Cable Flow Electric Battery Negative 3450286
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0919275-SDA
Skoda Octavia 1Z PDC Parking Sensor 4H0919275 Anthracite Grey Metallic - F8J
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8517862-3
BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8517862 + Key + FEM
Promo price
PLN 1,044.95
PLN 731.47
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 3D0919283C
Volkswagen VW Phaeton 3D PDC Parking Sensor Control Unit Module 3D0919283C
PLN 61.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. A2709002100-9
Mercedes W176 A160 W246 B160 270.910 102HP Engine ECU Unit A2709002100 Manual
PLN 522.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 7508637
BMW 7 Series E65 E66 N62 Starter Motor 1,8KW Petrol 7508637 7508635
PLN 94.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. A1715450701
Mercedes SLK R171 Rear SAM Control Unit Module Relay Fuse Box A1715450701
PLN 427.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9264917
BMW Z4 E89 Roadster Air Module Control Unit ECU 9264917
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9321879
BMW F10 LCI Body Control Module Gateway ECU 9321879
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 5Q0915181C
Audi A3 8V Negative Battery Cable Terminal Clamp Wire 5Q0915181C
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. A6511590246
Wiring Cable Cover Mercedes W204 W212 W906 OM651 Engine Duct Bracket A6511590246
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8509757-1
BMW F07 530d F01 730d N57 245HP Engine ECU Kit DDE 8509757 CAS4 Key Automatic
Promo price
PLN 949.95
PLN 664.97
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 03L906022RD
Skoda Octavia II VRS 2.0 TDI CEGA Engine Control Module ECU 03L906022RD Manual
PLN 1,092.95
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 9231280-TS
BMW F07 Parking Module PDC Distance Control Unit Sensor Titan Silver - 354
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 7L0937401B
Audi Q7 4L Power Distribution Box Control Unit Plus Housing Cover 7L0937401B
PLN 123.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 5Q0959392D
VW Volkswagen Golf 7 Front Door Control Module Passenger Side Unit 5Q0959392D
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5A37095
BMW i4 G26 Gran Coupe Electric Rear Door Wiring Harness Right Left N/O/S 5A37095
PLN 227.95
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A2074401208
Mercedes W207 Parking Sensor Wiring Loom Cable Harness Rear PDC
Promo price
PLN 104.95
PLN 94.46
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8W0907159J
Audi A4 B9 A5 F5 Impact Sound Actuator Control Module 8W0907159J
Promo price
PLN 170.95
PLN 119.67
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 7634063
Gearbox Wiring BMW F10 F11 520i 528i N20 Automatic Engine Loom Harness 7634063
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9270035
Antenna Aerial Amplifier Mini F55 F56 F60 Rear AM/FM DAB 9270035
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

Part no. 6942100
BMW E60 Air Module Control Unit Gateway Sensor B Pillar Right O/S 6942100
PLN 42.95
Delivery - Tue, Dec 23
If paid before 14:00

Part no. 8V0907376H
Audi A3 S3 8V AMR Module Rear Suspension Damper Control Unit 8V0907376H
PLN 474.95
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8654977
BMW X5 F15 N20 Petrol Sensor System Engine Wiring Harness Cable Loom 8654977
Promo price
PLN 712.95
PLN 499.07
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. BK2T-14B446-AE
Ford Transit Custom Front Panel Catch Cable Wiring Harness BK2T-14B446-AE
PLN 189.95
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 8512043
BMW 3 E90 E91 LCI 316d 318d N47N Engine Basic DDE 8512043 Control Unit Manual
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. A2059006651
Mercedes C205 GLC C253 Body Control Comfort Module Unit SAM BCM A2059006651
Promo price
PLN 949.95
PLN 664.97
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8T0959792D
Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A2079011900
Air Module Mercedes W207 A207 Control Unit ECU Air Module Sensor A2079011900
Promo price
PLN 284.95
PLN 256.46
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 03L906018JG
Audi A5 8F 2.0 TDI CGLC 177HP Diesel Engine Control Unit ECU 03L906018JG Manual
PLN 142.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8K0959792
Audi A4 B8 Door Module Control Unit Module ECU Front Left N/S 8K0959792
PLN 75.95
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 8585641
Engine Wiring BMW F20 F21 F30 F31 N47N Diesel Loom Harness Cable 8585641
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. A0009003713
Mercedes W205 Tyre Pressure Control Module Unit A0009003713
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 7P6907357B
Volkswagen Golf Mk7 Headlight Head Lamp Range Control Unit Module ECU 7P6907357D
PLN 189.95
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8720310
Telematics Module Mini F54 F55 F56 F60 Bluetooth Control Unit ECU 8720310
Promo price
PLN 265.95
PLN 186.17
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 9237968
BMW F07 GT Central Gateway Module ECU Control Unit Lear ZGW-01 High 9237968
Promo price
PLN 284.95
PLN 199.47
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. A1685405008
Mercedes A-Class W168 Door Cable Harness Wiring Loom Front Right A1685405008
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A2465406607
Positive Cable Mercedes W176 W246 Battery Lead Plus Pole Red A2465406607
Promo price
PLN 66.95
PLN 60.26
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. A0325453132
Gearbox Module Mercedes SLK R171 Automatic Transmission Unit EGS A0325453132
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A2711500420
Mercedes W204 M271 Solenoid SOLV Valve Wiring Harness Petrol A2711500420
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 7N0959794K
VW Sharan 7N Rear Door Module Control Unit Left N/S Passenger Side 7N0959794K
PLN 85.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8N0906018CB
Audi TT 8N 1.8T BAM 224HP Quattro Engine Control Unit ECU 8N0906018CB Manual
PLN 607.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. A2475402228
Mercedes W177 Recirculation Pump Wiring Loom Cable Harness A2475402228
PLN 180.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9238195
Fuse Box Grouping BMW F10 F11 F12 Fuse Placement Map Card Diagram 9238195
Promo price
PLN 37.95
PLN 36.05
Delivery - Tue, Dec 23
If paid before 14:00

Part no. 8516753-1
BMW F01 730d F07 530d N57 245HP Engine Unit ECU Kit DDE 8516753 Automatic
PLN 759.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 7804127
BMW E60 E61 LCI 520d Cable Alternator Starter Base B 7804127
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8369504
BMW 5 E39 Saloon Radio Signal Antenna Amplifier Coaxial Cable 8369504
Promo price
PLN 65.95
PLN 62.65
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 9337205
BMW F32 Door Wiring Front Door Right Loom Cable Wiring Harness 9337205
PLN 94.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9364552
Seat Wiring BMW F45 X1 F48 Mini F55 F56 Passenger's Side Sensor Cable 9364552
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8678974
Engine Cable BMW F40 X1 F48 Mini F55 F56 Injector Wiring Loom Harness 8678974
Promo price
PLN 170.95
PLN 119.67
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 5WA919298
Audi S3 8Y PDC Parking Distance Assist Sensor Module Control Unit 5WA919298
PLN 189.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 4M0941823E
Audi Q7 4M Positive Battery Terminal Distribution Box 4M0941823E
PLN 284.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9805535
BMW Countryman R60 R61 Centre Console Retaining Bracket Rail Rear 9805535
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 9294309
Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 6,5" 9294309
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9367693
BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 9325723
BMW G30 G31 Suppression Filter Aerial Antenna Amplifier Module 9325723
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 9250459
BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9250459
Promo price
PLN 284.95
PLN 256.46
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8506438-1
BMW E81 E87 LCI E90 E91 120d 320d N47 177HP ECU KIT DDE 8506438 CAS 3 Key
Promo price
PLN 655.95
PLN 459.17
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. A2469009413-1
Mercedes W176 W246 Control Unit Body Control Module ECU A2469009413
Promo price
PLN 70.95
PLN 67.40
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 9286110
BMW F20 F21 F30 F31 F32 Body Control Comfort Module Unit FEM ECU LR01 9286110
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 4H0971365J
Audi A8 D4 Seat Cable Front Left Right N/O/S Seatbelt Warning Wiring 4H0971365J
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 8482940
BMW F30 LCI G11 G30 Battery Cell Supervision Circuit Module Unit 8667593
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 5Q0971250Q
Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250Q
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 9209758
BMW X5 Z4 E89 E70 Mini Cooper R56 R57 CD Changer Multichanger 9209758
Promo price
PLN 75.95
PLN 68.36
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 8657337
Starter Motor BMW F90 M5 G11 G30 Petrol Engine Starter Actuator DENSO 8657337
Promo price
PLN 569.95
PLN 512.96
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 7790996
Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996
PLN 47.95
Delivery - Tue, Dec 23
If paid before 14:00

Part no. 9123290
BMW E81 E87 E90 MULF Hands Free Electronics Control Module 9123290
PLN 237.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 9224588
BMW E81 Footwell Light Module Control Unit ECU BASIS PL2 FRM3R 9224588
PLN 617.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 5A0FAD6
BMW i4 G26 Hybrid Electric Earth Ground Cable Negative Battery Lead 5A0FAD6
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. A0009050410
Mercedes W176 W205 C207 W212 Front Radar Distance Sensor Unit Module A0009050410
PLN 617.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 8W6971036G
Audi A4 B9 A5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036D
PLN 180.95
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A1725402209
Electrical Cable Mercedes R172 Transmission To Body Wiring Harness A1725400035
Promo price
PLN 47.95
PLN 43.16
Delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A1636801080-1
Mercedes-Benz M-Class ML W163 1 Cover Footwell Fuse Box Trim Right A1636801080
Promo price
PLN 65.95
PLN 59.36
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 7609656-3
BMW Z4 E89 Roadster 23i N52N 204HP ECU Kit DME 7609656 CAS3 Key Manual
PLN 1,424.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8574048
Mini F54 F55 F56 F57 F60 Engine Starter Motor Plug Bracket Holder Mount 8574048
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 2622610
Bluetooth Module BMW F10 F20 F23 F30 Teleservices GPS Telematics Control 2622610
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. A1695406945
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8576484
BMW X3 G01 G20 G21 G30 G31 Starter Acoustic Vibration Plug 8576484 8588900
Promo price
PLN 28.95
PLN 27.50
Delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. 8585933
Wiring Loom Harness BMW F20 F30 F36 LCI B47 Engine Gearbox Module 8585933
Promo price
PLN 522.95
PLN 366.07
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 95B919606E
Porsche Macan 95B MMI Multimedia Navigation Control Head Unit 95B919606E
PLN 1,424.95
Free delivery - Tue, Dec 23
If paid before 14:00

Part no. 3414473
BMW X3 E83 Transmission DXC Transfer Box Wiring Cable Loom Harness 3414473
PLN 189.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 6820235
BMW F20 F30 Mini F55 F56 Control Unit Air Conditioning Module 6820235
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 23
If paid before 14:00

-30%
Part no. A1765400103
Battery Cable Mercedes C117 W176 Starter Alternator Wiring Harness A1765400103
Promo price
PLN 322.95
PLN 226.07
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 6923215
BMW E46 Inclination Indicator Alarm Tilt Sensor Module 6923215
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 23
If paid before 14:00

Part no. A4539018900
Smart ForTwo C453 Air Module Impact SRS Control Module ECU A4539018900
PLN 474.95
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8K0971104AE
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AE
Promo price
PLN 189.95
PLN 180.45
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 6953467
BMW 1 3 Series E88 E93 Convertible Tel Phone Antenna Aerial 6953467
Promo price
PLN 104.95
PLN 99.70
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 9212916
BMW 5 7 X5 E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor 9212916
Promo price
PLN 47.95
PLN 43.16
Delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. 8K9035225
Audi RS4 B8 Radio Aerial Antenna Amplifier AM/FM 8K9035225
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
If paid before 14:00

-10%
Part no. 8617709
BMW Mini Cooper F55 F56 Wiring Harness Motor Sensorsystem Module 8617709
Promo price
PLN 503.95
PLN 453.56
Free delivery - Tue, Dec 23
If paid before 14:00

-5%
Part no. A2465400308
Alternator Cable Mercedes W176 W246 OM651 Battery Prefuse Box A2465400308
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 23
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 .