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. 9267200-1
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE 9267200
Promo price
PLN 170.95
PLN 162.40
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 8379766
BMW E65 E90 E91 E92 E93 Auto Boot Release Switch Tailgate 8379766
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6C1T14A067E
Ford Transit Mk7 Fuse Box Battery Terminal Unit Module 6C1T-14A067-E
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 7296090
BMW Z4 F30 F31 E89 Headlight Ballast Control Unit Xenon Light 7296090
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 8607569
BMW X5 F15 40eX N20 Hybrid Starter Motor Automatic Transmission 8607569
Promo price
PLN 569.95
PLN 398.97
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2129009729
Mercedes W176 W207 W212 Keyless Door Lock Module ECU Unit A2129009729
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 8K0907064C
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064C
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 9803844-4
Aerial Roof Antenna Mini Cooper Countryman R58 R60 R61 Base Module 9803844
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2219000804
Parking Module Mercedes W221 W216 Sensor PDC Distance Control Unit A2219000804
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 4G0907697J
Audi A7 4G A6 C7 Daytime Running Lights DRL LED Headlight Module Unit 4G0907697J
Promo price
PLN 256.95
PLN 179.87
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 7180426
Fuel Pump Control Unit BMW E60 E81 E87 E90 E92 Module Sensor ECU 7180426
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 8511958
Glow Plug Wiring BMW F20 LCI F45 F48 B37 Wiring Harness Engine 8511958
Promo price
PLN 161.95
PLN 145.76
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 9335347
BMW F20 F21 F30 F31 Radio Player CD DAB Head Unit Audio Player 9335347
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. A2055400428
Battery Wiring Mercedes GLC X253 C253 Diesel OM651 Starter Cable A2055400428
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 8663284
BMW F20 F30 F31 LCI B38 ECU Basic DME Control Unit Automatic Gearbox 8663284
PLN 1,614.95
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. A0009006516
Bluetooth Module Mercedes S205 W205 W177 Active Parking Assist Control Rear
Promo price
PLN 474.95
PLN 332.47
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2038202185
Mercedes W203 Door Control Module Rear Left N/S A2038202185
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. VW-Remote-Key
VW Passat Radio Remote Control Alarm Key Fob Control Unit Module
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 15
If paid before 14:00
Part no. A0009068706
Mercedes W205 C43 Alternator Generator VALEO 200A 3.0 Petrol A0009068706
PLN 379.95
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 8573260-2
BMW F20 F21 116d ed Diesel N47N 116HP Engine Control Unit DDE 8573260 Manual
Promo price
PLN 161.95
PLN 113.37
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 4F9035225AA
Audi A6 C6 Antenna Amplifier Control Unit Module 4F9035225AA
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 9207913
BMW F20 F21 F22 F30 F31 F32 F33 F36 G30 Fan Motor Relay 9207913
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 9289590
BMW X5 X6 E70 E71 Antenna Amplifier Module Trap Circuit 9289590
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
Part no. 6975069
Mini Cooper One R50 R52 R53 Cable Door Right Wiring Harness Loom 6975062
PLN 47.95
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6922211
BMW E81 E87 E90 E60 Mini R55 R56 R57 Interior Aerial Comfort Access 6922211
Promo price
PLN 85.95
PLN 81.65
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 3455305
Mini R57 R57N R58 R59 DWA-Alarm System Relay ECU 3455305 65753455305
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. A2079002800
Mercedes W207 Convertible Door Module Front Right O/S Control Unit A2079002800
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 8570659
Wiring BMW X3 F25 N47N Engine Automatic Gearbox Module Wiring Harness 8570659
Promo price
PLN 113.95
PLN 102.56
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6964140
BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6933264
Promo price
PLN 18.95
PLN 18.00
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 9462544
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 9462544
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 3Q0907530BF
VW Polo Mk6 Seat Ibiza Mk5 Central Gateway Control Unit Relay ECU 3Q0907530BF
PLN 379.95
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 8W9971104T
Audi A4 B9 Rear Bumper PDC Wiring Parking Sensor Loom Harness 8W9971104T
Promo price
PLN 237.95
PLN 214.16
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2028281114
Mercedes-Benz C CLK W202 W208 Alarm Control Module Bracket Holder A2028281114
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 3448250
BMW X3 E83 Front Door Window Lifter Regulator Motor Right O/S 3448250
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. A2469066600
Fuse Box Mercedes W156 W176 W246 Front Relay Control Unit Module A2469066600
Promo price
PLN 113.95
PLN 102.56
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 9277812
BMW 2 Series F23 Convertible Rear Trunk Tailgate Antenna Aerial DAB 9277812
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 8E0907637B
Audi A6 C6 Yaw Module Rotation Rate Acceleration Sensor 8E0907637B
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 5Q0959593F
Volkswagen Golf Mk8 Door Module Front Right O/S ECU Control Unit 5Q0959593F
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
Part no. 6938226-1
BMW E90 E90N E91 E91N LCI M3 Wiring loom rear door left right 6938225
PLN 42.95
Delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 9890599
BMW F90 M5 G11 G30 Air Module Crash Control Unit 9890599
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 9143823-1
BMW E88 E93 LCI ECU Air Control Unit Module Controller 9143823
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. A0009058802
Mercedes W166 W205 W212 Rear Bumper Blind Spot Radar Sensor Module A0009058802
Promo price
PLN 807.95
PLN 565.57
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 9271216
BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9271216
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 4H4907357B
Audi A8 D4 Headlight Head Light Lamp Range Control Unit Module ECU 4H4907357B
Promo price
PLN 379.95
PLN 341.96
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 6951629
BMW Z4 X3 E83 E85 Mini R50 DVD GPS Navigation System Computer 6951629
Promo price
PLN 854.95
PLN 769.46
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6826201
Junction Point BMW X5 F15 X6 F16 B + Battery Power Distributor 6826201
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 8574095
BMW F20 F21 F30 F31 116d 316d 118d 318d Diesel N47N Engine ECU 8574095 Manual
Promo price
PLN 170.95
PLN 119.67
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 9876796
Telematics Module Mini F55 LCI 4g Bluetooth Control Module Unit Ecu 9876796
Promo price
PLN 284.95
PLN 199.47
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 2HJ962211N
Volkswagen Amarok Mk2 Engine Earth Ground Wiring Harnes Cable MB3T-18C942-BF
PLN 94.95
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. A1729060005
Mercedes R172 Rear SAM Fuse Relay Box A1729060005
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6988965
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Spacegrau 6988965
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 9270356-2
Fuse Carrier BMW F40 Mini F55 F56 F57 F60 Distribution Box 9270356
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A1697220180
Mercedes-Benz A-Class W169 Door Plug Cover Trim Insert Blank Seal A1697220180
Promo price
PLN 46.95
PLN 44.60
Delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. A6269060100
Starter Mercedes W205 Diesel OM626 Engine Starter Motor Bosch A6269060100
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 7542310-7
Mini Cooper R50 W10 Petrol Engine Control Unit Module ECU DME 7542310 Manual
Promo price
PLN 113.95
PLN 108.25
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6910542
BMW 3 X3 Series E46 E83 Battery Cable Plus Pole Power Positive 6910542
Promo price
PLN 66.95
PLN 63.60
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6864923
Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 7540369
BMW E46 N46 Wiring Harness Engine Gearbox Module Loom Cable 7540369
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 7574294
Mini Cooper S R56 Automatic Gearbox TCU ECU Control Unit EGS Module 7574294
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 7648785
BMW i3 i01 Battery Cell Module Supervision Circuit Control Unit 7648785
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 2G0907357A
VW Polo Mk6 AW Headlight Head Lamp Range Control Unit Module ECU 2G0907357A
PLN 189.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 8P0971085A
Audi A3 8P Rear Bumper PDC Parking Sensor Wiring Harness Loom 8P0971085A
PLN 142.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 7802261
BMW E60 E61 E81 E87 E90 Alternator Generator Valeo 180A N47 7802261
PLN 94.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 8507909
BMW F20 F30 Wiring Harness Engine Transmission Module Diesel Manual N47N 8507909
PLN 360.95
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 7928648
BMW G30 LCI Radio Remote Control Receiver Module ECU Unit 434 Mhz 7928648
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 3T1T-14301-AF
Ford Transit Connect Negative Battery Terminal Cable Wiring 3T1T-14301-AF
Promo price
PLN 123.95
PLN 111.56
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A1729009302
Mercedes W212 W221 Media Interface Control Unit Module A1729009302
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 7075944-3
BMW E60 E65 E70 Front Right Seat O/S Height Adjustment Drive 7075944
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2129004203
Mercedes W212 Boot Lid Control Unit Trunk Lid Module A2129004203
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2049004106
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049004106
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 8588448
BMW 1 3 Series F20 F21 F30 LCI Wiring Harness Engine Glow Plug Module 8588448
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 9134482
BMW 1 Series E87 ECU Body Control Module Unit L2 PL2 JBBFE 9134482
PLN 94.95
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. A0325452332
Mercedes CLK W209 Automatic Gearbox EGS Control Unit Module ECU A0325452332
Promo price
PLN 142.95
PLN 100.07
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 8W0907063CG
Audi Q5 FY 2.0 TFSI DAXB Petrol Supply Body Control Module Unit 8W0907063CG
Promo price
PLN 332.95
PLN 233.07
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 8T0862335A
Audi A4 B8 Bluetooth Interface Module Control Unit ECU 8T0862335A
Promo price
PLN 218.95
PLN 153.27
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. A2475400700
Mercedes W177 Rear Axle Wheel RPM Speed Left N/S Sensor Wire Harness A2475400700
Promo price
PLN 75.95
PLN 68.36
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 9267203
BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359267203 9267203
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. A4479001118
Mercedes W447 Front Air Module Control Unit ECU A4479001118
Promo price
PLN 1,899.95
PLN 1,329.97
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. F1ET-14F142-BC
Ford Transit Connect Door Module Front Left N/S Control Unit ECU F1ET-14F142-BC
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. 8X0971687C
Audi A1 8X Rear Door Harness Left N/S Wiring Loom Cable 8X0971687C
Promo price
PLN 180.95
PLN 162.86
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2118201626
Mercedes S211 W211 Rear Door Control Unit Right O/S A2118201626
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
Part no. 4G0919475L
Audi A6 C7 4G PDC Module Parking Sensor Assistance Control Unit 4G0919475L
PLN 617.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. A1775408457
Mercedes W118 W177 Alternator Earth Cable Wiring Harness Loom A1775408457
PLN 341.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 9380883
BMW F20 F21 F30 F31 Control Unit Air Conditioning A/C Module 9380883
PLN 104.95
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 7L0937576B
Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A0025421319-4
Mercedes W204 Genuine Universal Car Relay 4-Pin Tyco X4 Black A0025421319
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 6950364
BMW E65 E66 Front Right Door O/S Wiring Harness Carrier 6950364
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. A0015422623-2
Mercedes W639 PDC Display Parking Sensor Screen Control Unit A0015422623
PLN 127.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 9187536
BMW 3 Series E90N E90 LCI ECU Body Control Module H1 61359187536 9187536
PLN 42.95
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. 4G8959795J
Audi A7 4G8 Rear Door Module Control Module Unit Left Right N/O/S 4G8959795J
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. A2469009312-1
Mercedes W176 Radio Stereo Head Unit Media Player Navigation A2469009312
Promo price
PLN 379.95
PLN 341.96
Free delivery - Mon, Dec 15
If paid before 14:00
-30%
Part no. 8639595
BMW F30 F31 F32 320i 420i N20 ECU Engine Control Unit DME 8639595 Automatic
Promo price
PLN 1,433.95
PLN 1,003.77
Free delivery - Mon, Dec 15
If paid before 14:00
-10%
Part no. A2518204426
Mercedes V251 W164 Front Lamp Headlight Control Module Unit HELLA A2518204426
Promo price
PLN 42.95
PLN 38.66
Delivery - Mon, Dec 15
If paid before 14:00
Part no. 4H4907357G
Audi TT 8S Headlight Head Light Lamp Range Control Unit Module ECU 4H4907357G
PLN 260.95
Free delivery - Mon, Dec 15
If paid before 14:00
Part no. 8X0971365
Audi A1 8X Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8X0971365
PLN 189.95
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2229055804
Mercedes CLA C117 W176 W205 Aerial Antenna Amplifier Unit A2229055804
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2118705026
Passenger Seat Module Mercedes W164 W203 W211 Memory Control Unit A2118705026
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2215450601
Mercedes W221 Dashboard Fuse Box Front Left N/S Control Module A2215450601
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 15
If paid before 14:00
-5%
Part no. A2048210651
Mercedes W204 Air Module Impact Crash Sensor Door A2048210651
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 15
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 .