Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
Make
Category
Subcategory
Condition
In Stock
Price
Part no. BK2T14A094BA
Ford Transit Mk8 Battery Fuse Box BK2T14A094BA
PLN 189.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6938226
BMW 3 Series E90 E91 Cable Wiring Loom Rear Door Left Right 61126938226 6938249
Promo price
PLN 85.95
PLN 81.65
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A1635403110
Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635403233
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9196936
BMW 1 3 Series E87 E90 E91 E92 Seat Control Unit Module ECU 6926371
Promo price
PLN 66.95
PLN 63.60
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6798242
ICM Module BMW F10 F11 Integrated Chassis Management QL ES Control Unit 6798242
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8513559
BMW X3 F25 30dX N57N Engine Module Injector Wiring Cable Loom Harness 8513559
Promo price
PLN 949.95
PLN 664.97
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 6863385
BMW F20 F21 F30 F31 ECU ICM Plus Control Unit Module Airbag 6863385
Promo price
PLN 85.95
PLN 77.36
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 9438731
BMW F20 F21 F22 F30 F31 F32 F36 Body Control Module Unit FEM LR01 9438731
Promo price
PLN 617.95
PLN 556.16
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8626472-1
BMW F20 F21 M135i N55 326HP Petrol Engine Control Unit ECU DME 8626472 Automatic
PLN 1,234.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 5G0971175C
Volkswagen Golf Mk7 Rear Tailgate Boot Lid Wiring Adapter Loom 5G0971175C
PLN 42.95
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 7621860
Mini Cooper One R55 R56 R57 Control Unit Module Bracket Holder EGS 7621860
Promo price
PLN 27.95
PLN 26.55
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8580307
BMW X1 E84 18dX Diesel N47N Engine Control Unit Module ECU DDE 8580307 Manual
Promo price
PLN 427.95
PLN 299.57
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A6519007500-16
Mercedes W204 C220 CDI 651.911 Engine Control Unit ECU A6519007500 Automatic
Promo price
PLN 142.95
PLN 100.07
Free delivery - Thu, Dec 18
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 - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6864927
BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Air Module 6864927
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8581370-1
BMW F40 Mini Cooper F56 F57 F60 Bracket Control Unit Box Engine 8581370
Promo price
PLN 61.95
PLN 58.85
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 7E0919506
VW Volkswagen Transporter T5 Magnetic Clutch Relay Unit Black 454 7E0919506
PLN 332.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9878658
BMW F20 F30 F31 LCI Mini F55 F56 Compensator LTE UK Control Unit Module 9878658
Promo price
PLN 66.95
PLN 63.60
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8514766
BMW 1 Series F20 114d 116d ed N47N Wiring Harness Engine Glow Module 8514766
Promo price
PLN 759.95
PLN 531.97
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9128569-2
Wiring Harness BMW E81 E82 E87 LCI E88 Air Valve Air Flap Cable Wire 9128569
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
Part no. 03L906022NN
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Module 03L906022NN
PLN 427.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2909003001-1
Mercedes C238 Transfer Case Torque Distribution Control ECU E53 4matic
Promo price
PLN 949.95
PLN 854.96
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8584817
BMW G20 G21 G01 G02 Wiring Harness Engine Glow Plug Module 8584817
Promo price
PLN 142.95
PLN 128.66
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 7L5035739
Porsche Cayenne 9PA Rear Door Treble Speaker Audio Unit Left N/S 7E0035411B
PLN 42.95
Delivery - Thu, Dec 18
If paid before 14:00
Part no. 98661208300
Porsche Boxster 986 Rear Screen Window Heated Wiring Harness Cable 98661208300
PLN 94.95
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 9395173
BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9395173
Promo price
PLN 569.95
PLN 398.97
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A6519007500-11
Mercedes W204 C 200 CDI 651.913 136HP Engine Unit ECU Kit A6519007500 Key Lock
Promo price
PLN 664.95
PLN 465.47
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8J0035456A-1
Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A9067601204
Mercedes Sprinter W906 Front Left Door N/S Handle Bowden Pull Cable A9067601204
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6928267
BMW E65 E66 E67 Gateway Sensor Air Module Control Unit 6928267
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8W1907064BL
Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BL
Promo price
PLN 759.95
PLN 531.97
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 5B4E028
Remote Control Receiver BMW F70 X5 G05 G60 U06 Mini F65 Radio Module 5B4E028
Promo price
PLN 113.95
PLN 102.56
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A0015453116
Mercedes W211 Automatic Gearbox Transmission Module Control Unit A0015453116
PLN 123.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8200881264
Alternator Support Nissan Qashqai Renault 2.0 dCi Engine Bracket 8200881264
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
Part no. A2189000104
Mercedes CLS X218 Parktronic PDC Parking Assist Control Module A2189000104
PLN 61.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6957347
BMW 6 Series E63 E64 F06 F12 F13 Aerial Antenna Amplifier Module Left N/S
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 6798937
BMW F11 Touring Air Suspension Control Unit ECU Rear Axle Module 6798937
Promo price
PLN 284.95
PLN 256.46
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 4G8959793G
Audi RS6 C7 Front Door Module Driver's Side Control Unit ECU 4G8959793G
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8625072
Wiring Loom Mini Cooper F55 F56 Harness Injection Valve Ignition 8625072
Promo price
PLN 43.95
PLN 41.75
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 7805349-2
BMW X3 E83 LCI M47N2 2.0d 150HP ECU Kit DDE EWS4 Key 7805349 Manual
Promo price
PLN 902.95
PLN 632.07
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 9361589
BMW 2 F45 Active Tourer Door Wiring Loom Harness Cable Driver's Side 9361600
Promo price
PLN 142.95
PLN 128.66
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8578495
Engine Wiring BMW F30 F31 330d F32 F36 430d N57N Loom Harness Cable 8578495
Promo price
PLN 237.95
PLN 214.16
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A0009003505
Module Mercedes W205 Fuel Pump Control Module In Trunk Rear ECU A0009003505
Promo price
PLN 85.95
PLN 81.65
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A2229009211-1
Mercedes W207 W212 Tuner Box Digital Satellite Radio Control Unit A2229009211
PLN 284.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2205404208
Mercedes W220 Rear PDC Parking Sensor Wiring Loom A2205404208
Promo price
PLN 123.95
PLN 111.56
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2059008826
Mercedes C205 SAM Module Rear Comfort Control Unit ECU A2059008826
Promo price
PLN 132.95
PLN 119.66
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 9352750
BMW X6 F16 F86 Camera Kafas Front Windscreen Camera Module 9352750
Promo price
PLN 113.95
PLN 79.77
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 5WA962132
Volkswagen Golf Mk8 Antenna Amplifier Transmitter Receiver Module ECU 5WA962132
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8K0907064JE
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064JE
Promo price
PLN 142.95
PLN 100.07
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6R0971839A
VW Volkswagen Polo 6R 1.2 TSI Petrol Fuel Sender Pump Cover Panel 6R0971839A
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6912755
BMW X5 E46 E53 Side Air Module Control Unit ECU 6912755 6962530
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A6394460132
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460132
Promo price
PLN 949.95
PLN 664.97
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 55568953
Opel Insignia A 2.0 Cdti Oil Level Crankshaft Sensor Wiring 55568953
Promo price
PLN 61.95
PLN 58.85
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 5A130F9
BMW F40 F44 G20 Parking Control Module Unit USS ECU LOW 5A130F9
Promo price
PLN 161.95
PLN 145.76
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6907520
BMW 5 X5 Series E39 E53 Dual Band Cable Compensator Hands Free Phone 6907520
Promo price
PLN 75.95
PLN 72.15
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A0141540402
Alternator Mercedes W164 OM272 Engine Alternator 180A 14V Valeo A0141540402
Promo price
PLN 369.95
PLN 332.96
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 7L0909606D
Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606D
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A6396890379
Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6396890379
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A0009009639
Mercedes EQA350 H243 4matic DC Current Charge Connection Module OBL + BR293
Promo price
PLN 3,799.95
PLN 2,659.97
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2139001909
Mercedes W213 Ambient Lighting Control Unit Module ECU A2139001909
Promo price
PLN 170.95
PLN 153.86
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 6936801
BMW Z4 E85 Roadster Cabrio Convertible Folding Top Roof Module
Promo price
PLN 142.95
PLN 128.66
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A2469004519
Gearbox Module Mercedes W176 W246 Control Unit ECU Automatic A2469004519
Promo price
PLN 189.95
PLN 132.97
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 06K907425B-15
Audi S3 8V 2.0 TFSI DJHA 310HP Quattro Engine Unit ECU Kit 06K907425B Automatic
PLN 1,519.95
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 05E972627B
Volkswagen Golf SV 1.5 TSI DADA Automatic Engine Wiring Harness 05E972627B
Promo price
PLN 379.95
PLN 265.97
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 9273629
BMW F11 Footwell Light Module ECU Control Unit FRM III TEMIC 9273629
PLN 142.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 7799146
Mini R55 R56 Alternator Supporting Bracket Mount Generator Diesel W16 7799146
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9257426
Fuse Box Grouping BMW F10 F11 Fuse Placement Map Card Diagram 9257426
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9237055
Antenna Diversity BMW F07 GT Control Unit Module Aeral Amplifier 868 MHZ 9237055
Promo price
PLN 170.95
PLN 162.40
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. YC1U-11000-AF-1
Ford Transit Mk6 Starter Motor Engine Actuator Diesel 2.4 TDCi YC1U-11000-AF
PLN 142.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A2129060605-1
Mercedes W212 Fuse Box Rear Relay Control Unit Electric Module SAM A2129060605
PLN 379.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8E0035456D
Audi A4 B8 Telephone Aerial Antenna Signal Amplifier Module 8E0035456D
PLN 42.95
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 7608804
BMW 1 3 Series F20 F21 F30 Wiring Loom Harness Injection Valve Ignition 7608804
Promo price
PLN 113.95
PLN 108.25
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A6541400155
Mercedes-Benz W213 Genuine Gas Filter Pressure Line Sensor Dpf A6541400155
Promo price
PLN 85.95
PLN 81.65
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 9387147
BMW F30 LCI 330e B48X Positive Battery Cable Plus EME Loom 9387147
Promo price
PLN 218.95
PLN 153.27
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8598806-1
BMW X3 F25 20dX Diesel B47 190HP Engine Module ECU Kit DDE 8598806 Key CAS4
Promo price
PLN 1,709.95
PLN 1,196.97
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2218703086
Mercedes W221 Seat Module Front Right O/S Memory Control Unit A2218703086
Promo price
PLN 142.95
PLN 128.66
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 7545877
Battery Cable BMW E60 E61 E63 E64 N62N Alternator Starter Base B+ Lead 7545877
Promo price
PLN 218.95
PLN 197.06
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8W0971235A
Audi A4 B9 Negative Battery Terminal Cable Harness Wiring Loom 8W0971235A
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2038000178
Mercedes-Benz C CLK Class W203 C209 Vacuum Solenoid Valve A2038000178
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6958525
BMW X5 X6 E60 E61 E70 E71 F07 F10 F11 Seat Adjustment Switch Left N/S 6958525
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 4F0959651
Audi A6 C6 Front Impact Sensor Safety Crash Detection Module Unit 4F0959651
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 5Q0937125A
Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A0045428718-1
Mercedes W203 W211 Parking Distance Sensor PDC Iridium Bright Silver
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2049009004
Parking Module Mercedes W204 S204 PDC Distance Control Unit Sensor A2049009004
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 7174403-5
BMW E92 Coupe Rear Light Lamp Plug Socket Wiring Left N/S 6984754
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2078202810
Mercedes W207 Convertible Anti Theft Roof ITS TPS Sensor Module Unit A2078202810
Promo price
PLN 61.95
PLN 55.76
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 3453791
BMW X3 E83 LCI Crash System Control Unit Module ECU 3453791
Promo price
PLN 189.95
PLN 170.96
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A2829003300-1
Mercedes W177 A180 282.914 136HP Petrol ECU Kit A2829003300 Key BCM Automatic
Promo price
PLN 1,044.95
PLN 731.47
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 3Q1959435C
Seat Ibiza KJ1 Keyless Go Control Unit Module ECU 3Q1959435C
PLN 569.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 9171217
BMW E93 ECU Body Control Module H1 PL2 JBBFE Junction Box 9171217
Promo price
PLN 161.95
PLN 145.76
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A1679003811
Door Module Mercedes W205 W213 C253 Front Left N/S Control Unit ECU A1679003811
Promo price
PLN 237.95
PLN 214.16
Free delivery - Thu, Dec 18
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 - Thu, Dec 18
If paid before 14:00
-30%
Part no. 3456946
Mini Cooper R55 R56 R57 LCI R58 R59 CHAMP 2 Navigation 9270726
Promo price
PLN 949.95
PLN 664.97
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 4H0911075B
Audi A8L 4H Power Positive Distribution Junction Jumper Box Housing 4H0911075B
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A1669004719
Audio Amplifier Mercedes W166 C292 Sound Control Unit Harman Kardon A1669004719
Promo price
PLN 2,659.95
PLN 1,861.97
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2034404913
Mercedes-Benz CLC CL203 Rear Tailgate Boot Lid Wiring Harness Loom A2034404913
Promo price
PLN 65.95
PLN 62.65
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 03L906018JR
Audi A4 B8 2.0 TDI CJCB 136HP Engine Control Unit Module ECU 03L906018JR Manual
PLN 949.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 3452285
BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5"
Promo price
PLN 1,234.95
PLN 1,111.46
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 4H0959107AC
Audi A8 4D Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AC
Promo price
PLN 180.95
PLN 162.86
Free delivery - Thu, Dec 18
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 .