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
-40%
Part no. 8582155-3
BMW F20 F30 F32 120dX 320dX 420dX 184HP N47N Engine ECU 8582155 Automatic
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9130047
BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2479009412
Bluetooth Module Mercedes W247 W447 Multimedia Control Unit ECU A2479009412
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9809354
Mini R55 R56 R60 R61 Air Module ECU Control Unit Module 9809354
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2135400329
Mercedes X253 Electrical Wiring Harness Cable Hybrid A2135400329
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7558911
BMW 1 Series E81 E82 E87N E88 NOx Cable Wiring Petrol 7558911 12517558911
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 02Z911024H
Volkswagen Passat B7 Starter Motor Actuator TDI Diesel Engine 02Z911024H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6982348
BMW 5 Series E60 E61 Wiring Drivers Side Loom Door Cables Front Right O/S
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8617707
BMW Mini Cooper F55 F56 Wiring Harness Engine Supply Module Cable Loom 8617707
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9293309
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9293309
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2044409005
Mercedes W204 Battery Wiring Starter Alternator Wiring Harness A2044409005
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2079013700
Mercedes-Benz E-Class W207 Windscreen Windshield Rain Sensor Control Unit
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1569007702
Signal Actuation Module Mercedes W176 W246 SAM Control Unit ECU A1569007702
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6916692
BMW 7 Series E65 E66 E67 Steering Wheel Electronics Control Unit Module 6916692
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 6942677
BMW E60 E61 E63 E65 PDC Parking Control Module Unit ECU 6942677
€94.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 3456625
Mini R56 MMI Multimedia Switch Button Panel Radio Reader Boost CD Player 3456625
Promo price
€332.95
€199.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4H0951253
Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit 4H0951253
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6934648
BMW X5 E70 E91 LCI Touring Tailgate Trap Circuit Aerial Amplifier 6934648
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7H0907652A
Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8574372
BMW F30 F32 330d 430d Diesel N57N Engine Control Unit ECU DDE 8574372 Automatic
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2741504704
Mercedes X253 Engine Wiring Harness Line Supply Line A2741504704
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9172019
BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module 9172019
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0919275B-AGR
Audi Q2 GA Front Parking Sensor Assist Control Module Arrow Grey Z7W 5Q0919275B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8617709
BMW Mini Cooper F55 F56 Wiring Harness Motor Sensorsystem Module 8617709
€113.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2125405710
Mercedes W212 PDC Wiring Parktronic Parking Sensor Cable Rear A2125405710
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2049060305
SAM Module Mercedes W204 Control Unit Electrical Fuse Box Unit A2049060305
Promo price
€108.95
€65.37
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2124405933
Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2124405933
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9296780
BMW F20 F21 F30 F31 Control Unit Air Conditioning Module 9296780
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2229005914
Mercedes W205 Rear SAM Module Control Unit A2229005914
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0009003310
Mercedes W205 W213 Fuel Pump Module Control Unit ECU A0009003310
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9316575
BMW 1 2 Series F20 F21 F22 Battery Cable Lead Positive Underfloor 9316575
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8578946-3
BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic
€142.95
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8573257-9
BMW F20 F30 F32 120d 320d 420d Diesel N47N 163HP Engine ECU DDE 8573257 Manual
€32.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9130313
BMW 3 Series E93 E93N LCI Cabrio Battery Cable Plus Pole 9130313
Promo price
€227.95
€136.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6940236
BMW E90 E91 E92 LCI AUX USB Lead Cable Wire 6940236
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A1644400937
Mercedes ML W164 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1644400937
€56.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6850846
BMW F10 F11 F12 Parking Brake Unit Electric Control Module EMF 6850846
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6R0959655K
VW Volkswagen Polo 6R Air Module Bag Control Unit 6R0959655K
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9688268580
Citroen C4 Starter Motor Diesel Engine 1.6 HDI Actuator Unit 9688268580
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5QA919283E
Audi A3 8V Park Parking Assist PDC Distance Control Unit Module 5QA919283E
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 04L907309B-3
Skoda Octavia Mk3 5E 1.6 TDI CLHA 105HP Engine ECU Kit Ignition + Key 04L907309B
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A6402003370-1
Alternator Belt Tensioner Mercedes W169 W245 OM640 Diesel Holder Mounting Panel
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9872066
BMW X2 F39 F40 F44 F45 F46 F52 Air Quality AUC Sensor 9872066
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 4H0907064BN
Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN
Promo price
€51.95
€31.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9317175
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9317175
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6H52-18C808-BD
Land Rover Freelander II Audio Amplifier Control Module 6H52-18C808-BD
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8572439-3
Engine Control Unit BMW F30 F31 N57N 330d 258HP ECU DDE 8572439 Automatic
Product currently unavailable
Part no. 7639661
BMW F20 Alternator Engine Alternator Generator Denso 170A Petrol N55 7639661
€47.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1695450540
Fuse Box Mercedes W169 W245 Electrical Relay Control Unit A1695450540
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2044402232
Mercedes W204 W207 Battery Cable Positive Wiring Harness Loom A2044402232
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8E0959655G
Air Module Audi A4 B6 B7 ECU Control Unit Crash Sensor Air 8E0959655G
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2124404851
Mercedes W212 Rear Bumper PDC Wiring Parking Sensor Loom Harness A2124404851
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8V0857273P
Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9367693
BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8602988
MINI F54 F55 F56 F57 F60 Cable Alternator Starter Wire 8602988
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8516739
Mini One D R56 LCI R60 90HP N47N Engine Control Unit ECU DDE 8516739 Manual
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 6935667-2
BMW E85 Battery Lead Positive Cable Plus Pole Wiring Cabling 6935667
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9382401
BMW F30 LCI 330e Hybrid High Voltage Electronics Unit Holder Support 9382401
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W2035043E
Audi A4 B9 MMI Multimedia Sat Nav Navigation Control Head Unit 8W2035043E
Promo price
€474.95
€284.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9367812
Active Sound Design Module BMW F20 F21 F30 Harman Becker Control Unit 9367812
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A1698207326
Mercedes-Benz A B Class W169 W245 Door Control Unit Left N/S Front A1698207326
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1729009302
Mercedes W212 W221 Media Interface Control Unit Module A1729009302
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9232896
Dashboard Monitor BMW X5 X6 E70 E71 Onboard Display Screen 8,8" 9232896
Promo price
€113.95
€96.86
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1179001802
Mercedes W176 Air Module Belt Locking System Control Unit Module ECU
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1669005417
Mercedes X117 Communication Telematics Control Module Unit ECU A1669005417
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6793850
Adapter Lead Wire BMW F20 F21 F22 F23 F30 F31 F32 F33 VDC Cable Harness 6793850
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2539009309
Mercedes C253 W293 Rain And Light Sensor Control Unit Module ECU A2539009309
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 7812070
Mini Cooper Clubman R55 R56 W16 1.6 Diesel Engine Starter Motor 7802945
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1709317
BMW X5 E53 E60 E61 E63 E64 Petrol Engine Ping Knock Sensor 1709317
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2134400200
Mercedes GLC 300e X253 Electric Drive Ground Earth Line Wire A2134400200
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 912034H670
Hyundai H-1 Fuse Box Front Relay Engine Control Unit Module ECU 91203-4H670
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8486547
Mini Cooper F55 F56 Dual-Clutch Transmission Gearbox Control Unit Module DCT
Promo price
€427.95
€256.77
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 2K5951172
VW Volkswagen Caddy Maxi Interior Roof Alarm Sensor Module Unit 2K5951172
Promo price
€108.95
€92.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6956744
BMW 1 3 Series E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Sydney Blue 6956744
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6915063
Ultra Sonic Module Mini R50 R53 Alarm System Sensor 6915063
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 7600020-7
Mini R55 R56 R57 N12 DME Petrol Engine Control Unit ECU 7600020
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6938226-2
BMW 3 Series 2 E90 E91 LCI M3 Wiring Loom Rear Door Left Right 6938226
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5WA959354
VW Volkswagen Golf Mk8 Air Module Control Unit Crash Impact Sensor 5WA959354
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1J0927841
Audi Volkswagen Seat Skoda ESP Relay Unit Grey 444 1J0927841
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6925642
BMW 5 6 Series E60 E61 E63 Reserve Fuse Carrier Housing 6925642
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2218205375-CS
Mercedes CLK S Class C209 W209 W221 Roof Antenna Shark Radio Silver A2218205375
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0959393
Audi A3 8V Control Unit Central Door Locking Module ECU 5Q0959393
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6824110
BMW 3 F30 LCI 330e Hybrid High Voltage Battery Wiring Loom Harness 6821420
Promo price
€94.95
€80.71
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1698203285
Mercedes A B Class W169 W245 Door Control Module Right Rear O/S A1698203285
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9218380
Steering Wheel Module BMW F10 F11 F20 F21 F30 F31 Heating Control Unit 9218380
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8P0907279P
Audi A3 8P Gateway Interface Onboard Supply Control Module Unit ECU 8P0907279P
Promo price
€237.95
€202.26
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2469004519
Gearbox Module Mercedes W176 W246 Control Unit ECU Automatic A2469004519
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8577839-1
BMW F32 F33 430d N57N 258HP Engine ECU DDE Kit 8577839 FEM + Key Automatic
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2128205026
Mercedes W212 Impact Crash Sensor Door Left Right A2128205026
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0915181H
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9180402
BMW E90 Front Sport Seat Lumbar Wiring Loom Harness Cable 9180402
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A0025451201
Mercedes W169 W245 W906 Fuse Box Carrier A0025451201
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8574102
BMW F20 F21 F30 F31 F32 Starter Motor Engine Actuator N47N Diesel 8574102
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 7636292
BMW F20 F30 116i 316i N13 136HP Engine ECU Module DME 7636292 Manual
Product currently unavailable
-5%
Part no. 4B0955531A
Audi VW Volkswagen Seat Relay Unit Module 9 Pins 12V UH2 4B0955531A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A6401501891-1
Mercedes W169 W245 A200 B200 CDI OM640.941 140HP Engine ECU Kit Key A6401501891
Promo price
€237.95
€142.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5N0035342G
VW Volskwagen Polo 6R Multimedia Electronic ECU Control Unit Module 5N0035342G
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2469008115
Mercedes W176 W246 Gearbox Transfer Case Control Module Unit ECU A2469008115
Promo price
€42.95
€25.77
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. EXHAUST-FLAP-CONTROL
Audi A3 8V 1.6 TDI CLHA Drive Exhaust Flap Control Module Unit Actuator
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
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 .