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. 8T0907468R
Audi A4 B8 Gateway Control Unit Module ECU 8T0907468R
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2649001200
Mercedes W177 A35 AMG 306HP M260.920 4-Matic Engine ECU Control Unit A2649001200
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9247481
BMW X3 F25 Control Module CAS Unit ECU 20dX Diesel N47N 9247481
Promo price
PLN 427.95
PLN 299.57
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8664661-3
BMW F23 F30 F32 228i 328i 428i N20 184HP Engine Unit ECU DME Kit 8664661 Manual
PLN 1,424.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 4L0971767
Audi Q7 4L Washer Bottle Reservoir Wiring Loom Harness 4L0971767
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6842527
BMW G20 Battery Terminal Voltage Distribution Box 400W MID 6842527
Promo price
PLN 132.95
PLN 119.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 5A323C8
BMW F40 Fuse Relay Power Distribution Box Unit 5A323C8
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9199305
KaFAS Camera BMW F10 F11 Rear View Control Unit Module 9199305
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 3D0907539A
VW Volkswagen Phaeton 3D Dashboard Light Sun Solar Sensor Unit 3D0907539A
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 04L906021BQ
Audi A4 B8 Engine Control Unit Module ECU 2.0 TDI CNHC 163HP 04L906021BQ
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8067511
BMW F98 Adapter Cable Wiring RBS Rear Axle 8067511
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 197-299-00
BMW F20 F21 DRL Daytime Running Lights Led Module Control Unit PCB 197-299-00
PLN 180.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8582279-3
BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8582279 Keys FEM
Promo price
PLN 949.95
PLN 854.96
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9339192
BMW F45 F46 Battery Cable Positive Wire Lead Terminal 9339192
Promo price
PLN 66.95
PLN 60.26
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2059007218-2
Mercedes GLC X253 Rear Trunk Lid Automatic Closing Lock Mechanism A2059007218
Promo price
PLN 61.95
PLN 55.76
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 9499005
BMW F32 REM Module Body Control Module BCM Fuse Relay Unit V5 9499005
PLN 237.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
Part no. A2059000219
Mercedes C117 W176 W205 Telematics Module Communication Control Unit A2059000219
PLN 94.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7M0951253A
Audi VW Volkswagen Seat Relay Unit Module 4 Pins 7M0951253A
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 5Q0035570-1
Volkswagen Golf 5G Radio Antenna Noise Signal Disturbance Suppressor 5Q0035570
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 3C0919275S-CGR
Audi TT 8J PDC Parking Distance Sensor Control Condor Grey - Y7E 3C0919275S
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9191408
BMW X1 Series E84 Wiring Cable Loom Set Rear Door Left Right N/O/S 9191408
Promo price
PLN 56.95
PLN 54.10
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8H0951178
Audi A4 B7 Cabrio Alarm Signal Body Control Sensor Module Unit 8H0951178
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 5P0035186B
Seat Altea Multimedia Radio CD Player Head Unit Controller 5P0035186B
PLN 94.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2535401001
Battery Cable Mercedes C238 C253 Starter Alternator Wiring Harness A2535401001
Promo price
PLN 142.95
PLN 100.07
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 3D0919887E
VW Volkswagen Phaeton 3D Head Unit Navigation Control Unit CD 3D0919887E
PLN 113.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. TM450
Trafficmaster TM450 GPS Vehicle Location Tracker Control Unit Module ECU
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 0AM911023T
Volkswagen Touran 1T 1.4 TSI Petrol Engine Starter Motor 0AM911023T
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 6C1T-14A076-BB
Ford Transit Mk7 Fuse Box Cover Electrical Unit Housing Trim Cap 6C1T-14A076-BB
PLN 61.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 6956744-1
BMW E81 E82 E87 E88 E90 E91 Parking Sensor PDC Sydneyblau - A19 6956744 SET X2
PLN 94.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 5WA962133F
Audi Volkswagen Seat Keyless Entry Module Aerial Antenna 5WA962133F
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A6401501933
Engine Wiring Mercedes W169 W245 OM640 Cable Loom Harness A6401501933
Promo price
PLN 142.95
PLN 100.07
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8573258-7
BMW F20 F21 F30 116d 316d N47N 116HP Engine ECU Kit DDE 8573258 Manual Key FEM
PLN 569.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 6820386
Mini F54 F55 F56 Operating Unit Audio Radio Control Switch Panel 6820386
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 95B907801C
Porsche Macan 95B Electric Parking Brake Module Control Unit 95B907801C
PLN 94.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2139005613
Mercedes W213 Front Door Module Right O/S Control Unit A2139005613
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A4159064900-1
Mercedes Citan W415 Alternator Generator OM607 Diesel Engine 150A 14V 231000026R
PLN 237.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9231443
BMW 3 Series F30 F80 M3 Radio Antenna Amplifier Suppression Filter 9231443
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1645400750
Mercedes ML W164 Battery Fuse Box Power Distribution A1645400750
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9296981
Battery Cable Mini F55 F56 BMW X2 F39 Diesel B37 Positive Cable Wiring 9296981
Promo price
PLN 61.95
PLN 55.76
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8W6907217B
Audi A5 F5 Front Windscreen Windshield Lane Assist Camera 8W6907217B
Promo price
PLN 332.95
PLN 233.07
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2469000012
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
Promo price
PLN 351.95
PLN 316.76
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9188853
BMW X5 E70 X6 E71 Battery Earth Cable Ground - Pole Lead L= 490MM 9188853
Promo price
PLN 75.95
PLN 68.36
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8V5035225
Audi A3 8V Keyless Entry Amplifier Control Box Module Aerial Antenna 8V5035225
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 8Y0971365N
Audi A3 8Y Seat Belt Warning System Wiring Harness Cable Loom System 8Y0971365N
PLN 42.95
Delivery - Mon, Dec 22
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 - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8W0959595E
Audi A4 B9 Rear Door Control Module ECU Left Right N/O/S 8W0959595E
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2049007508
Mercedes W204 Display Screen Monitor Radio Sat Nav Navigation Unit A2049007508
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 7853460
Gearbox Wiring BMW F87 M2 N55 Engine Automatic Loom Harness Cables 7853460
Promo price
PLN 807.95
PLN 565.57
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A1698200611
Mercedes W245 Bluetooth Module Telephone Control Unit A1698200611
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 06J906026AR
Volkswagen Scirocco Mk3 2.0 TFSI CAWB 200HP Control ECU Kit 06J906026AR Manual
PLN 1,234.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 6C4971693E
VW Volkswagen Polo 6R Rear Door Harness Wiring Loom Cable Left N/S 6C4971693E
PLN 94.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8K0971845A
AUDI A5 8T 2.0 TDI CGLC Fuse Relay Box Power Distribution 8K0971845A
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2218201811-2
Mercedes W221 Bluetooth Hands Free Mobile Phone Adapter Connector A2218201811
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 5Q4959593B
Seat Leon Mk3 5F Door Module Control Unit Front Driver's Side Door 5Q4959593B
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8K0907064HE
Audi A4 B8 Body Control Module BCM Comfort Control Unit 8K0907064DP
PLN 180.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 4H0971224BA
Audi A8 D4 Alternator Starter Motor Wiring Harness Cable Loom 4H0971224BA
PLN 427.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6819653
BMW X5 F15 Fuse Box Front Body Control Module ECU BCM Unit 6819653
Promo price
PLN 142.95
PLN 135.80
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9284421
BMW F10 F11 Gateway Module ECU Control Unit LEAR ZGW-02 Mid 9284421
Promo price
PLN 189.95
PLN 180.45
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2128270128-IRS
Roof Antenna Mercedes W212 Shark Trim Panel Iridium Silver - 775 A2128270128
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A6399001001
Mercedes W639 PDC Parking Park Sensor Distance Control Module A9064460046
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2045407435
Earth Ground Cable Mercedes W204 C207 W212 Line Strap Battery Lead A2045407435
Promo price
PLN 104.95
PLN 99.70
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6949228-2
4 x Mini Cooper R52 Convertible DWA Door Alarm System Module Unit Set 6949228
Promo price
PLN 56.95
PLN 51.26
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 4F0971547
Audi A6 C6 Cable Wiring Loom Heater Matrix Air Conditioning Cable 4F0971547
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
Part no. P1WT-19H517-AE
VW Volkswagen Amarok Mk2 Auto Brake Trailer Module Control Unit P1WT-19H517-AE
PLN 522.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8V5971687Q
Audi A3 8V Door Wiring Harness Loom Rear Left Right N/O/S 8V5971687Q
PLN 142.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8T0035225J
Audi A5 8T Antenna Aerial Amplifier Module Control Unit 8T0035225J
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9137800
Mini Cooper One R55 R56 R57 Passenger's Door Harness Wiring Cables N/S 9137800
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2128203589
Antenna Amplifier Mercedes W212 Aerial Module Rear Roof Frame Right A2128203589
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 4H0951253C-1
Volkswagen Polo 6R Tiguan 1T Multi Use Control Module Relay SET 4H0951253C
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2049005410
Mercedes W204 Sat Nav Radio CD Player Radio Head Unit A2049005410
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8677250
Battery Starter Cable Mini Countryman F60 Cooper S B48 Positive Plus 8677250
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9679061680
Peugeot Boxer 2.2 Puma Diesel Engine Control Unit ECU Module 9679061680
Promo price
PLN 2,849.95
PLN 2,564.96
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-10%
Part no. A0045425218
Mercedes W221 Blind Spot Radar Sensor Module Control Unit A0045425218
Promo price
PLN 949.95
PLN 854.96
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A2055405203
Mercedes W205 Negative Cable Battery Lead Minus Pole Wiring A2055405203
PLN 104.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. NTG-SCREEN
Mercedes W212 Display Screen Radio Multimedia Navigation Sat Unit NTG4 4+64 GB
Promo price
PLN 759.95
PLN 531.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 198393-01
Volkswagen Polo 6R Light Lamp Control Module Unit ECU 198393
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 7605076
BMW F06 F10 F11 F12 F13 Wiring Harness Cable Engine Ignition Module N55 7605076
Promo price
PLN 313.95
PLN 282.56
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-30%
Part no. A4209003305
Mercedes Sprinter W907 W910 Radio Stereo Player Head Unit Module A4209003305
Promo price
PLN 759.95
PLN 531.97
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9285505
Distribution Junction BMW X5 X6 F15 F16 Power Battery Control Unit 9285505
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A1669063901
Mercedes ML W166 Relay Module Box Under Rear Right Seat F4 A1669063901
Promo price
PLN 85.95
PLN 77.36
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6966551
BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passengers Side 6966549
Promo price
PLN 104.95
PLN 94.46
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 9123290
BMW E81 E87 E90 MULF Hands Free Electronics Control Module 9123290
PLN 237.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2218210197
Mercedes W221 Cover Wiring Cable Front Door Protection Seal Sleeve A2218210197
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-30%
Part no. KT1T18B955EB
Ford Transit Connect Mk2 II Dashboard Display Screen Panel KT1T-18B955-EB
Promo price
PLN 517.95
PLN 362.57
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2055403606
Mercedes W205 Front Axle Damper Adjustment Right O/S Wiring Harness A2055403606
Promo price
PLN 123.95
PLN 111.56
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2319058100
Mercedes SLK R172 Roadster Antenna Amplifier Control Module A2/71 A2319058100
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 99661822100
Porsche Boxter 986 Crash Impact Sensor Module 99661822100
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8605144
BMW F20 F21 LCI F23 F30 F32 F33 Engine Wiring Loom Harness Cable 8605144
Promo price
PLN 237.95
PLN 214.16
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8580053
Starter Cable BMW G30 G31 G32 Alternator Wiring Starter-Base B+ 8595355
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A1775404507
Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
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 .