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
Part no. 6918816
BMW 1 3 5 6 X1 X3 X5 X6 Z4 Series Relay Change Over Contact Silent Blue 6918816
€23.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7169960
BMW E60 E63 E87 E90 Control Unit Sensor Fuel Pump ECU 7169960
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9286863
BMW X5 Z4 Series E70 E89 Active Sound Harman Becker Amplifier Design 9286863
Promo price
€56.95
€34.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7550975
BMW 1 3 Series E81 E82 E87N E88 E90 E91 E92 N43 Starter Motor
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8373700
BMW E60 E63 E87 E90 E91 Relay Make Contact White Green 8373700
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7L0937576B
Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8571110
BMW G11 G12 G30 G31 G32 B57 Wiring Loom Harness Injection Injector Cable 8571110
€127.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7795638
BMW 3 E90 E91 E92 E93 Cable starter-base B Diesel 7795638
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 03C906027DA-1
VW Volkswagen Touran 1T 1.4 TSI CAVC Engine ECU Kit Ignition 03C906027DA + Keys
€237.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 4H0907145
Audi A6 C7 Air Suspension Level Height Adjustment Module Control Unit 4H0907145
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 4G8959793G
Audi RS6 C7 Front Door Module Driver's Side Control Unit ECU 4G8959793G
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9229972
Module BMW Z4 E89 Convertible Cabrio ECU Control Unit Controller 9229972
Promo price
€113.95
€68.37
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9389600
BMW Gran Turismo G32 Radio Aerial Antenna Amplifier AM/FM 9389600
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A1779007716
Mercedes W177 Front Door Control Module Left Right N/O/S Unit ECU A1779007716
Promo price
€61.95
€37.17
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9395949-1
Radio Player Mini F54 F55 F56 Stereo Head Unit Module Alpine 9395949
Promo price
€142.95
€85.77
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A9067601304
Mercedes-Benz Sprinter W906 Front Right Door O/S Handle Bowden Pull Cable
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8633997
Ground Line BMW G11 G12 G20 G30 G31 Battery Earth Cable Wire 8633997
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8580165
Mini F54 F55 F56 F57 F60 B47 Wiring Harness Engine Glow Plug Module 8580165
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8371312
BMW 3 Series E46 Relay Control Unit Module Bracket Holder 61358371312 8371312
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6850955
Brake Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6850955
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A6519062300
Starter Motor Mercedes W204 W212 OM651 Diesel Engine Starter A6519062300
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 5TRK0200UK
BMW X5 E53 GPS Vehicle Location Tracker Control Unit Module ECU 5TRK0200UK
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8625074
Engine Wiring Mini F55 F56 Cooper S Petrol B46 B48 Cable Loom Harness 8625074
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7550017
Mini Cooper One Clubman R55 R56 R58 R59 R60 Starter Motor 1.6 Engine 7550017
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6974372
BMW 7 Series 7 E65 E66 E67 Ultra Sonic Module
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9335300
BMW 1 Series F20 LCI Front Door Wiring Loom Harness Passengers Side 9335300
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8K0907063
Audi A4 B8 Body Control Unit Basic Module BCM 8K0907063
€23.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A0009006102
Mercedes Vito W639 ECU Control Unit Crash Impact Module Air Module A0009006102
Promo price
€56.95
€48.41
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8589158
Battery Cable BMW G01 G02 B47B B47D Alternator Base B+ Lead 8589158
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9286157
BMW X3 F25 Light Module Control Footwell Lightning ECU Unit FRM3 9286157
Promo price
€61.95
€37.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9265835
Fuse Box Holder BMW X5 F15 X6 F16 Control Unit Module Bracket Carrier 9265835
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A1679004511
Door Module Mercedes W205 W213 C253 Rear Left N/S Control Unit ECU A1679004511
Promo price
€61.95
€52.66
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A1719010100
Mercedes SLK R171 Heated Heating Seat Control Unit Module A1718201626
Promo price
€47.95
€40.76
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9317872
BMW F20 F21 F22 F30 F31 Alpine CD Champ 2 Radio Player Head Unit 9323784
Promo price
€42.95
€36.51
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2198203526
Mercedes CLS W219 Door Module Rear Left N/S Control Unit A2198203526
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2048704626
Door Module Mercedes W204 Rear Right O/S Control Unit Module A2048704626
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9116542
BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9229878-1
BMW E87 LCI ECU Body Control Unit Module Junction Box H2 9229878
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 6962296
BMW E81 E87 E88 E89 E90 E91 E92 E93 Radio Business CD 6962296
€47.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2075844181
Mercedes C207 Fuse Box Grouping Fuse Placement Map Card Diagram A2075844181
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8P1862335
Audi A3 8P Telematics Bluetooth Module Control Unit ECU 8P1862335
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 02M911024A
Volkswagen VW Golf VI Passat B6 Tiguan Starter Motor Diesel Engine 02M911024A
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 3449505
Mini Cooper One R55 R56 Fuse Distribution Box Cover Trim Cap 3449505
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A1669004002
Door Module Mercedes C117 W176 W246 Front Left N/S Control Unit A1669004002
€32.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9175649
BMW E81 Footwell Light Module LOW PL2 FRM II 61359175649 9175649
Promo price
€85.95
€73.06
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A6429004201
Mercedes W221 BlueTec Exhaust Gas Aftertreatment Control Unit Module A6429004201
Promo price
€151.95
€91.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9805533
Mini R60 Rear PDC Ultrasonic Parking Sensor Royal Grey Metallic 9805533
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2128201789
Mercedes W212 Antenna Amplifier Aerial Module C Pillar Left N/S A2128201789
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8W0941823F
Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
Promo price
€80.95
€48.57
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 2753031
Mini Wiring Loom Harness Cable Plug Connector Socket Input 2753031
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8W0907159F
Audi A4 S4 B9 A5 S5 Impact Sound Actuator Control Module 8W0907159F
€37.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9335289
BMW F20 Door Cable Harness Wiring Front Right O/S 9335289
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 4H0959760D
Audi A8 4D Front Seat Memory Adjustment Module Unit Right O/S 4H0959760D
Promo price
€56.95
€34.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8648003
BMW F20 F30 F31 LCI Earth Cable Battery Cable 8648003 12428648003
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6948689
BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6948689
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2218705087
Mercedes W221 Seat Memory Control Unit Module Front Right O/S A2218705087
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6500CW
Citroen Relay Peugeot Boxer Fuse Relay Electrical Box Housing Cover 6500CW
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 6927312-1
Seat Module BMW E60 E61 E65 E66 Front Seat Control Unit Module ECU 6927312
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1775402500
Mercedes W177 W247 Battery Cable Negative Lead Terminal Harness A1775402500
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9139868
BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Schwarz Black 9139868
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 3454167-1
BMW X3 E83 Shark Roof Fin Antenna Aerial Module Unit 3454167 3436613
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 09G927750FD
VW Volkswagen Tiguan 5N Automatic Gearbox Module Control Unit ECU 09G927750FD
Promo price
€47.95
€40.76
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 7811700-1
BMW 1 3 Series E81 E87 E90 E91 120d 320d N47 Engine Control Unit ECU DDE 7811700
Promo price
€113.95
€96.86
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8T0959795H
Audi A4 B8 Door Control Module Unit ECU Rear Left Right N/O/S 8T0959795H
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 1K0971250AH
VW Golf Mk5 V Negative Battery Terminal Cable Wiring 1K0971250AH
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 3437180
BMW E83 Telephone Bluetooth Roof Aerial Module Control Unit ECU 3437180
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6954130
BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Right O/S 6954130
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8624382
BMW 1 3 Series F20 F30 F31 LCI Line Cable Power Distribution Module 8624382
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 7555926-2
BMW E60 E81 E90 E91 Petrol Alternator Generator 180A 7555926
Promo price
€56.95
€34.17
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9343287
BMW i3 I01 Mini F56 Air Conditioning System A/C Control Unit Module 9343287
Promo price
€75.95
€64.56
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9874338
Navigation Headunit BMW F20 F21 F30 F31 Mini F56 Head Unit Basic Media 9139895
Promo price
€113.95
€96.86
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 5A130F9
BMW F40 F44 G20 Parking Control Module Unit USS ECU LOW 5A130F9
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8506434-4
BMW E81 E84 E87 E90 LCI 18d 118d 318d N47 ECU Kit DDE 8506434 CAS3 Key Automatic
Promo price
€251.95
€151.17
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A2139005223
SAM Module Mercedes W213 C238 Control Unit Front ECU A2139005223
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2469003417
Parking Brake Module Mercedes W176 W231 W246 Electric Control Unit A2469003417
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8606306
BMW F10 F11 F30 184 HP Petrol N20 Engine Control Unit ECU DME 8606306 Manual
Promo price
€398.95
€239.37
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0055421218
Crash Sensor Mercedes W176 W204 W212 Impact Airbag Unit Module A0055421218
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9279824
Body Control BMW F20 F21 F30 F31 F32 Unit Module REM 9279824
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A2129003708
Mercedes W212 COMAND Radio Head Unit Navi CD DVD Player Navigation A2129003708
Promo price
€189.95
€161.46
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6980177-2
BMW E81 E87 E90 E91 F10 F11 X5 E70 Relay Unit Green Set TYCO 5 Pins 6980177
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8T0919603E-1
Audi A4 B8 Display Screen Sat Nav Navigation Dashboard 8T0919603E
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 3C0971228K
Battery Cable Volkswagen VW Golf Mk6 VI Positive Plus Pole Lead 3C0971228K
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6954298
BMW E81 E87 E90 E91 Adapter Lead Medium Range Loud Speakers 6954298
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8U0907468Q
Audi Q3 8U Gateway Control Module Unit ECU 8U0907468Q
€23.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8802918
BMW F20 F30 Mini F55 F56 Radio Remote Control Receiver 434 MHZ 8802918
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A0061511001
Starter Motor Mercedes W906 M272 Engine Diesel Bosch A0061511001
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 9248315
Mini R57 R58 R60 Bluetooth Combox Control Module Audio ECU Harman Becker 9248315
€123.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8507902
Engine Wiring BMW F20 F21 F22 F30 F31 F34 F32 F33 F36 Harness Loom 8507902
Promo price
€66.95
€56.91
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A2479001709
Mercedes W907 Radio Control Unit ECU Module A2479001709
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7188487
BMW E93 Convertible Battery Mounting Bracket Clamp Bolt Holder Mount 7188487
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7476046
BMW F20 F21 F30 F31 Mini F55 F56 F57 Fuel Pump Module Control Unit ECU 7476046
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2059000828
Door Module Mercedes GLC X253 Rear Door Left Control Module A2059000828
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9425925
BMW F30 LCI G20 G30 Hybrid Fuel Tank Control Unit Module Unit 7452591
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A6261500075
Mercedes W205 Alternator Protective Cover Metal Sheet A6261500075
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 7808074
BMW E70 LCI F10 Alternator Generator Engine 180A Valeo N57 Diesel 7803724
Promo price
€94.95
€56.97
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8617703
Engine Wiring Mini F56 Cooper S B46 B48 Valvetronic Cable Loom Harness 8617703
Promo price
€94.95
€56.97
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. BK2T18D815GD
Ford Transit Custom MK8 Radio Stereo Audio USB Head Unit Panel BK2T18D815GD
€56.95
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8639582-2
BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Manual
€379.95
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9223682
BMW X5 X6 Series E70 E71 Dashboard Onboard Monitor Display Screen 8,8" 9223682
Promo price
€132.95
€79.77
Free delivery - Wed, Oct 08
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 .