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. 9181454
BMW X1 E84 Aerial Antenna Noise Suppression Filter 9181454
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6906614-1
Mini Cooper One R50 R52 R53 Power Distribution Fuse Box Front 6906614
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9195223
BMW 7 Series E65 E66 DVD Navigation System Computer Unit EXCH 9122860
PLN 750.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9286171
BMW F20 Front Right O/S Wiring Loom Harness Door O/S 9251711
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0045468440
Mercedes W177 Power Distributor Connector Plug Unit A0045468440
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7580334
Earth Ground Cable BMW F10 F11 F13 F01 Battery Cable Engine Wiring 7580334
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9174269-1
BMW F07 F10 F11 Speakers Amplifier Bracket Holder Mount Unit Module 9174269
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2038219751-2
Mercedes W203 CL203 Roof Alarm Motion Sensor Cover Trim Black A2038219751
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7545142
BMW Z4 Series E85 N52 Roadster Cable Alternator Starter Base B+ 7545142
Promo price
PLN 65.95
PLN 62.65
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2048205015
Mercedes W204 W207 Wiring Loom Cable Harness AUX Jack A2048205015
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9267205
BMW E91 Touring LCI ECU Body Control Module Junction Box H2 9267205
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2059004321
Mercedes W205 X253 Front Right O/S Door Control Unit Module A2059004321
Promo price
PLN 42.95
PLN 38.66
Delivery - Wed, Dec 17
If paid before 14:00
Part no. A9069014700
Air Module Mercedes W639 W906 Control Unit ECU Air Sensor 0285011060
PLN 522.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9459681
Seat Module BMW F20 F30 F32 F33 X1 F48 X5 F15 Front Control Unit ECU 9459681
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8509722-2
Control Unit Box BMW F20 F21 F22 F30 F31 Cover Panel Protection 8509722
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8K0937517A
Audi A4 B8 A5 8T Battery Postive Terminal Distribution Power Board 8K0937517A
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. A0009828223-1
Mercedes W213 Power Relay 4 Pin 12V Hella A0009828223 SET x2
PLN 66.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9362848-1
Telematics Module BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Unit 9342881
Promo price
PLN 142.95
PLN 135.80
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A9075401805
Mercedes Sprinter W907 Battery Terminal Unit Connection Box A9075401805
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9289008
BMW F10 F11 On Board Screen Central Information Display Monitor 10,25" 9289008
Promo price
PLN 759.95
PLN 683.96
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9362395
BMW F20 F30 F31 F34 Electrical Body Control Unit Module REM V2 9362395
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6932452
BMW 5 6 Series E60 E61 E63 E64 Power Distribution Electrical Fuse Box 6932452
Promo price
PLN 55.95
PLN 53.15
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6926433
BMW 1 3 Series E87 E90 E91 Mini R56 R57 Seat Control Unit Module Heating 6926433
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7794911
BMW E87 E90 E91 Cable Alternator Starter Base B 7794911
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9159794
BMW 3 Series E93 Cabrio Airbag Control Unit Module ECU 9159794 65779159794
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6929554
BMW E65 E66 Door Air Module Sensor Control Unit Front Right O/S 6929554
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0025450801
Fuse Holder Mercedes W169 W245 W906 Electrical Fuse Box Bracket A0025450801
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8570238
BMW E87 E90 F20 F30 Engine Starter Motor Actuator N47 N47N Diesel 8570238
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 6859714-1
BMW X5 E70 X6 E71 Air Suspension Supply Compressor Valve Control Unit 6859714
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6954130
BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Right O/S 6954130
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A6511530879
Mercedes W906 OM651 Glow Plug Pre Heat Relay A6511530879
PLN 237.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9267214
BMW F20 F21 F22 F30 F31 F32 F33 F34 Air Control Unit Module ECU 9267214
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8K0907637C
Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637C
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A6397600104
Bowden Cable Mercedes W639 Vito Door Handle Catch Top Rear Left Wire A6397600104
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6950181
BMW E93 Aerial Antenna Amplifier Diversity Control Module 6950181 9187798
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8585729
BMW 3 Series F30 320d N47N Engine Gearbox Module Wiring Loom Harness Cables Set
Promo price
PLN 237.95
PLN 166.57
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9193745
BMW 3 5 E60 E61 E90 LCI Display Screen 8.8" Monitor Sat Nav 9193745
Promo price
PLN 378.95
PLN 341.06
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0009007607
Mercedes-Benz E-Class W207 W212 Front Windscreen Windshield Lane Assist Camera
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 93457542
Radio Player Renault Trafic III Vauxhall Vivaro B Audio Head Unit 93457542
Promo price
PLN 332.95
PLN 233.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2466200018
Mercedes-Benz A-Class W176 Battery Frame Holder Bracket Mount Plate A2466200018
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 4H0907658
Audi A3 8V A5 8T A6 A7 Air Quality Sensor Control Unit 4H09076588
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7520912
BMW E60 E61 E63 E64 LCI Cover Electronic Box 7520912
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0465456628
Mercedes W203 W204 W218 Front Seat Wiring Loom Plug Connector A0465456628
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A0009004613
EGR Module Mercedes W177 W205 Exhaust Gas Recirculation Unit ECU A0009004613
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 02E911024B
Starter Motor VW Golf GTI Audi Seat Skoda Petrol CJX CHHA Bosch 1.1KW 02E911024B
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 5Q1937084C
Audi Q2 GA Module BCM Body Control Unit Module ECU 5Q1937084C
Promo price
PLN 617.95
PLN 432.57
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A6395406209
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406209
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9209684
BMW F01 F02 F04 F07 ECU ICM Control Unit Air Module Bag 9209684
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2045405609
Video Wiring Cable Mercedes W204 Video Unit Harness Cable Wire A2045405609
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2049014503
Mercedes W212 Rain Light Solar Condensation Sensor Control Unit A2049014503
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9196929
Seat Control Module BMW E60 E61 ECU Seat Controller Unit Module 9196929
Promo price
PLN 142.95
PLN 100.07
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A0009050438
Windscreen Camera Mercedes W204 W212 Front Windshield Camera Unit A0009050438
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9226881
BMW 1 Series F20 F20N F21 F21N LCI Radio Aerial Antenna Amplifier AM/FM 9226881
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 8386708
BMW X5 Series E53 Xenon Headlight Ballast Control Unit Module Hella 8386708
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1669051702
Mercedes-Benz A C M W166 W176 W205 Aerial Antenna Amplifier Unit A1669051702
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2229000013
Door Module Mercedes W205 X253 Front Door Right O/S Control Unit A2229000013
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8510592
BMW E81 E87 E90 LCI 118d 318d N47 143HP ECU Control Unit DDE 8510592 Manual
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9185474
Mini Cooper R60 R61 Antenna Aerial Diversity Trap Circuit 9185474
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 9381305
Radio Professional BMW F20 F21 F30 F31 CD Player DAB Bluetooth 9381305
PLN 284.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8D0951253A
Audi A6 C6 Multi Use Relay Unit Module 4 Pins 373 8D0951253A
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2601503100
Mercedes W177 M260 Petrol Engine Wiring Cable Loom Harness A2601503100
Promo price
PLN 332.95
PLN 233.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9188877
BMW F01 F02 F03 F10 F11 Steering Column Adjuster Switch 9188877
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8507893
BMW 1 2 3 Series F20 F21 F22 F30 F31 N47N Wiring Loom Harness Engine 8507893
Promo price
PLN 237.95
PLN 214.16
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8586571
BMW 1 3 F20 F30 LCI B47 Engine Gearbox Module Wiring Cable Loom Harness 8586571
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8373700-2
BMW E60 E63 E87 E90 E91 4X Relay Make Contact White Green Set 8373700
Promo price
PLN 56.95
PLN 54.10
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1775402111
Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775402111
Promo price
PLN 85.95
PLN 81.65
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6943771
BMW 1 Series E87 CAS2 ECU Control Unit Key Reading Module 6943771
Promo price
PLN 28.95
PLN 27.50
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6917556-IB
Mini R50 R52 R53 Rear PDC Ultrasonic Parking Sensor Indi Blue 6917556
Promo price
PLN 66.95
PLN 63.60
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 6958358
BMW 5 X5 Series E39 E53 Hands-free Electronics Charging Module MULF 6958358
Promo price
PLN 188.95
PLN 132.27
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2118700026
Bluetooth Module Mercedes W203 W211 W219 Control Unit Hands Free A2118700026
Promo price
PLN 42.95
PLN 38.66
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6826985
BMW F22 F23 F30 F34 LCI Control Unit Air Module ECU 6826985
PLN 142.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2059006330
Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006330
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7795485
BMW X1 E81 E84 E87 E90 E91 Earth Cable Battery Cable 7795485
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0009059101
Mercedes-Benz E-Class W207 W212 ESP Yaw Rotation Rate Sensor A0009059101
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A1179008600
Airbag Module Mercedes w176 Air Bag SRS Control Unit ECU A1179008600
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9200944
BMW 3 X1 E84 E91 Ultra Sonic Burglar Alarm System Sensor Module 9200944
Promo price
PLN 93.95
PLN 89.25
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A9065420518
Mercedes-Benz W639 W906 ESP Yaw Rotation Rate Sensor Control Unit A9065420518
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 7801203
BMW X5 E70 E87 F10 F11 F15 F25 F30 Diesel Engine Starter Motor 7801203
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9329704
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9329704
Promo price
PLN 85.95
PLN 77.36
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9354228
Mini Cooper F56 Rain Light Turn On Sensor Unit 9354228
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0025428419
Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428419
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A0009054807-2
Mercedes W118 W177 W206 W247 NOX Sensor Electronics Module A0009054807
Promo price
PLN 66.95
PLN 63.60
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 5A44586
BMW F40 Ultrasonic Alarm System Module Control Unit 5A44586
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9861558-1
Rain Sensor BMW F20 F21 F30 F31 Windscreen Light Solar Condensation Unit 9861558
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2049005003
Mercedes S204 Estate Fuse Box Rear SAM Module Control Unit A2049005003
Promo price
PLN 222.95
PLN 200.66
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9317175
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9317175
PLN 61.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9145350
BMW X3 E83 LCI EWS IV 4.4 Control Unit Module ECU 9145350
Promo price
PLN 260.95
PLN 234.86
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9335298
BMW 1 Series F20 Front Left Door N/S Wiring Loom Harness Cables 9215715
Promo price
PLN 93.95
PLN 89.25
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8583091
BMW X5 E70 G11 Integrated Supply Module Ecu Control Unit 8583091
Promo price
PLN 93.95
PLN 89.25
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A0009009213
Mercedes W447 Fuel Pump Control Module A0009009213
Promo price
PLN 332.95
PLN 233.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9228495
BMW F07 GT ECU Body Control Module Junction Box V12 PL2 JBBFE III 9228495
Promo price
PLN 127.95
PLN 121.55
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9805422
BMW Mini Cooper One R50 R52 R53 R55 R56 R57 R58 R59 R60 R61 Earth Ground Cable
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9211494
BMW E88 Cabrio Convertible Folding Top Roof ECU Module CVM6 9211494
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9662854180
Citroen C4 Starter Motor Diesel Engine 1.6 HDI Actuator Unit 9662854180
Promo price
PLN 113.95
PLN 79.77
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2128205026
Mercedes W212 Impact Crash Sensor Door Left Right A2128205026
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6982652
BMW 1 Series E82 E88 Positive Battery Lead Cable Wire 61126982652 6982652
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6977982-2
Mini Cooper R50 R53 R56 R57 R60 Relay No Contact Taubenblau Blue Set 2X 6977982
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 5A0BD89
BMW F40 Power Distribution Fuse Box LIN Control Unit Module 5A0BD89
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8K0959792D
AUDI S5 8T Door Control Module ECU Front Left N/S 8K0959792D
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
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 .