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
-10%
Part no. 9223682
BMW X5 X6 Series E70 E71 Dashboard Onboard Monitor Display Screen 8,8" 9223682
Promo price
PLN 303.95
PLN 273.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2049006003
Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049006003
Promo price
PLN 902.95
PLN 812.66
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A6394409909
Wiring Loom Mercedes W639 Vito Cable Sliding Door Rear Left N/S A6394409909
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 95B035773A
Porsche Macan 95B Telematics Control Unit Module ECU 95B035773A
PLN 474.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9360501
Mini F54 F55 F56 F57 F60 Rear Electric Power Distribution Fuse Box 9360501
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2229000016
Entry Module Mercedes C253 W205 W213 C238 Keyless Go Control Unit A2229000016
Promo price
PLN 236.95
PLN 165.87
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0131541702
Alternator Mercedes W638 OM611 Engine Alternator Generator A0131541702
Promo price
PLN 283.95
PLN 255.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. N000000003996
Mercedes Universal Fuse Relay Electrical Unit Set Bag N000000 003996
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1668201089
Mercedes W176 Radio Aerial Antenna Amplifier Booster Unit Module A1668201089
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 9357988
Head Unit BMW F30 F31 F32 Radio Professional CD Player Control Module 9357988
PLN 332.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 3Q0907338E
Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338E
Promo price
PLN 104.95
PLN 99.70
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 7624617-1
BMW F20 F21 F30 F31 F32 Cable Alternator Starter Base B 7624617
Promo price
PLN 47.95
PLN 43.16
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 5A70A69
BMW F40 Parking Module Comfort Control Unit ECU 5A70A69
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A2069055100
Mercedes C118 W167 W177 W206 W247 Stereo Amplifier Harman Kardon A2069055100
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8507908
BMW F20 Gearbox Transmission Harness Wiring Loom Manual 8507908
Promo price
PLN 284.95
PLN 256.46
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2479002707
Communication Module Mercedes W177 W247 Hermes LTE Control Unit A2479002707
Promo price
PLN 218.95
PLN 153.27
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9383681-1
Mini F55 Fuse Box Front Body Control Module ECU BCM Unit 13275881
PLN 427.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 6822602
BMW F20 F21 F30 F31 Head Unit Basic Media Navigation Headunit 6822602
PLN 569.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1695408033
Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 24445098
Opel Astra Vectra Zafira Immobilizer Antenna Immobilizer Module Unit 24445098
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9274276
BMW F07 Gran Tourismo Headlight Footwell Light Control Module FRMIII 9274276
Promo price
PLN 218.95
PLN 153.27
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1715400107
Mercedes SLK R171 Window Lifter Lift Switch Cable Wiring Harness A1715400107
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6968650
BMW 3 Series E93 E93N LCI Aerial Antenna Amplifier FM/AM Right O/S 6968650
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6C11-3C190-AB
Ford Transit MK7 Yaw Sensor ESP Rotation Rate Control Unit Module 6C11-3C190-AB
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9325656
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9325656
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5Q4959592C
Seat Leon Mk3 Door Module Control Unit Front Passenger's Side Door 5Q4959592C
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8K0971693B
Audi A4 B8 Rear Door Card Harness Wiring Cable Loom Left Right N/O/S 8K0971693B
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9293242
BMW 3 7 Series F01 F02 LCI F34 Telematics Control Unit Module TCB ECE 9293242
Promo price
PLN 93.95
PLN 89.25
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9382417
BMW 1 2 3 5 F10 F20 F23 F30 Bluetooth Teleservices GPS Telematics Module 9382417
Promo price
PLN 56.95
PLN 54.10
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9267085
Antenna Amplifier BMW F01 F10 F13 Aeral Diversity 868 MHZ Control Unit 9267085
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2075403332
Convertible Cable Mercedes A207 C207 Roof Rail Wiring Harness A2075403332
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9187011
BMW F01 F07 GT Console Lightning Centre LED Lamp Light Cable Wiring 9187011
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8582280-3
BMW F20 F21 116d N47N 116HP ECU Kit DDE 8582280 + Key + Lock + FEM Manual
Promo price
PLN 1,234.95
PLN 864.47
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8572439-3
Engine Control Unit BMW F30 F31 N57N 330d 258HP ECU DDE 8572439 Automatic
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2701590042
Ignition Coil Mercedes W176 M270 Petrol Ignition Cable Connector A2701590042
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5F4035225
Seat Leon Mk3 Antenna Amplifier Module AM/FM Left N/S Aerial Booster 5F4035225
PLN 189.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8789891
BMW F87 M2 LCI Electric Front Bumper Wiring Harness PDC Loom Cable 8789891
PLN 474.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6905921
BMW 3 5 7 X5 E39 E46 E53 E65 GPS Receiver Control Unit Module Japan 6905921
Promo price
PLN 141.95
PLN 127.76
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9153802
BMW X5 E70 Footwell Light Module Control Unit ECU FRM II NSW Lear 9153802
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8P0035503M
Audi A3 8P Bluetooth Antenna Module Control Unit 8P0035503M
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9805535
BMW Countryman R60 R61 Centre Console Retaining Bracket Rail Rear 9805535
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9294309
Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 6,5" 9294309
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6952290
Mini Cooper Cabrio R52 Convertible Folding Roof Control Unit Module ECU 6952290
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A6399003701
Mercedes W639 Tire Tyre Pressure Control Module Unit A6399003701
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2469003114
Transmission Module Mercedes W176 W246 Control Unit ECU A2469003114
Promo price
PLN 85.95
PLN 77.36
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9345373
BMW F10 Footwell Central Lock Gateway Control Module Unit ECU 9345373
Promo price
PLN 664.95
PLN 465.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A6395406509
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406509
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4L0035225AJ
Audi Q7 4L Radio Aerial Antenna Amplifier AM/FM 4L0035225AJ
Promo price
PLN 123.95
PLN 117.75
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1775405801
Mercedes W177 W247 Door Wiring Rear Left Right Cable Harness A1775405801
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 4H0959792H
Audi A8 D4 4H Front Door Control Module Unit ECU Passenger Side 4H0959792H
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8P4971693P
Audi A3 8P Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8P4971693P
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A6519003701-2
Mercedes W212 Engine ECU Module Wiring Loom Harness Socket OM651 A6519003701
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6875997
ICM Control Unit BMW F01 F02 LCI F06 F10 F11 F13 ECU Module 6875997
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9209758
BMW X5 Z4 E89 E70 Mini Cooper R56 R57 CD Changer Multichanger 9209758
Promo price
PLN 75.95
PLN 68.36
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2139003029
Mercedes A238 Fuse Box Control Unit SAM Module Relay A2139003029
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2049009201
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2049009201
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9261604
Rear Bumper PDC BMW F20 F21 F22 Ultrasonic Sensor Tiefseeblau Deep Sea Blue A76
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 4E0910552G
Audi S8 D3 5.2 FSI 450HP BSM Quattro Engine Unit ECU 4E0910552G Automatic
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2049001206
Mercedes W204 Coupe Door Module Front Left N/S Control Unit A2049001206
Promo price
PLN 55.95
PLN 53.15
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. H1BT18K811LF
Ford Transit Custom Mk1 Radio Head Unit Control Panel H1BT18K811LF
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8V0971104
Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0009057908
Mercedes C238 Rear Bumper Blind Spot Radar Sensor Left Right N/O/S A0009057908
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9811263
Mini Cooper R60 Wiring Loom Front Door Cables Passenger Side 9811263
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2465450500
Mercedes-Benz A B W176 W246 Gearbox Control Module Bracket Holder A2465450500
Promo price
PLN 56.95
PLN 54.10
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A4479053905
Mercedes W447 Aerial Antenna Amplifier Control Unit Module A4479053905
Promo price
PLN 142.95
PLN 100.07
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1669003208
Mercedes ML W166 SAM Control Unit Rear Fuse Module A1669003208
Promo price
PLN 284.95
PLN 199.47
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9150889
BMW E81 E87 LCI Front PDC Parking Distance Control Loom Wiring 9150889
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9244429
BMW X6 Series E71 Rear Bumper PDC Cables Wiring Loom Set 9244429
Promo price
PLN 237.95
PLN 166.57
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 95B971228L
Porsche Macan 95B Starter Motor Alternator Wire Cable Loom 95B971228L
PLN 284.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2075404107
Mercedes W204 M276 NOX Sensor Adapter Left N/S Harness Wiring Cable A2075404107
Promo price
PLN 161.95
PLN 145.76
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A1715405045-1
Mercedes SLK R171 Central Gateway Module ECU Control Unit A1715405045
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8S0971365F
Audi TT FV Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8S0971365F
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2469004512
Mercedes-Benz A M Class W166 W176 Parking Brake Control Unit Module ECU
Promo price
PLN 70.95
PLN 67.40
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6857262
Air Module BMW F01 F02 LCI F10 F11 F13 ICM SRS Control Unit ECU Bosch 6857262
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8509910
BMW X3 F25 X4 F26 Engine Electronics Control Unit Box Cover Trim 8509910
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2439000800
Drivetrain Module Mercedes H243 Transmission Control Unit ECU A2439000800
Promo price
PLN 712.95
PLN 641.66
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6953467
BMW 1 3 Series E88 E93 Convertible Tel Phone Antenna Aerial 6953467
Promo price
PLN 104.95
PLN 99.70
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1669061202
Mercedes W221 Fuse Box Control Unit Module Relay A1669061202
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9212916
BMW 5 7 X5 E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor 9212916
Promo price
PLN 47.95
PLN 43.16
Delivery - Tue, Dec 16
If paid before 14:00
Part no. A0035421019-1
Mercedes C117 GLA X156 ML W166 W176 W246 Relay 5 Pins Yellow Set A0035421019
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6920292
BMW 7 Series E65 Cable Harness Loom Front Door Wiring Left Right N/O/S 6920292
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9270495-1
BMW X5 E70 X6 E71 F10 F11 F12 Parking Sensor PDC Ultrasonic Black 9251944 SET X4
Promo price
PLN 161.95
PLN 145.76
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 283930431R
Roof Microphone Mercedes Citan W415 Interior Mic Unit Wiring Cable 283930431R
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5Q0907376B
Seat Leon Cupra 5F Suspension Control Unit Module ECU 5Q0907376B
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 3456498
Harness Door Mini R57 LCI R58 R59 Cable Loom Front Passenger Side Wiring 3456498
Promo price
PLN 85.95
PLN 77.36
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 7911252
Mini Countryman F60 BMW F45 X1 F48 Air Module Control Unit ECU 7911252
PLN 123.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. K515B-K212
Chip Power Chiptuning Box GS2 K515B-K212 Control Unit Module Tuning Set
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2079057501
Mercedes E-Class W207 Cabrio A207 ITS Camera Control Unit Module ECU
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2475451000
Mercedes W177 W247 Battery Bracket Battery Mount Holder Trim A2475451000
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9362396
BMW F20 REM Rear Electronic Module Fuse Box Control Unit V3 9362396
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1668200400
Mercedes GLE W166 C292 Front Seat Occupancy Sensor Wire Harness A1668200400
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8580390
Engine Starter BMW F40 F46 F48 B47B B47D B48E Diesel Motor Actuator 8580390
Promo price
PLN 85.95
PLN 77.36
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6994419
BMW G20 Power Distribution Fusebox Cover Fuse Box Terminal 6994419
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1408207126
Mercedes C140 Blinker Hazard Trailer Relay Module Control Unit A1408207126
Promo price
PLN 949.95
PLN 664.97
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9210105
BMW 5 Series F07 GT Gran Turismo Door Wiring Loom Cable Harness 9210105
Promo price
PLN 42.95
PLN 38.66
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6907329
BMW E65 Door Cable Guide Rear Left N/S Wiring Loom Bracket Trim Cover 6907329
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
Part no. A2124400414
Mercedes C207 W207 W212 Fuel Pump Module Diesel Control Unit ECU A2124400414
PLN 75.95
Free delivery - Tue, Dec 16
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 .