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. 9244426
BMW X5 E70 Rear Bumper PDC Cables Wiring Loom Set 9219647
Promo price
PLN 218.95
PLN 197.06
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 5K0962132A
Audi Q3 F3 Keyless Entry Amplifier Control Box Module Aerial Antenna 5K0962132A
PLN 42.95
Delivery - Fri, Dec 19
If paid before 14:00
Part no. 4KE959655H
Audi Q7 4M Air Module Control Unit ECU SRS Module Unit 4KE959655H
PLN 617.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 4G2971228DQ
Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ
Promo price
PLN 113.95
PLN 102.56
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A6229000700
Mercedes W447 Bosch Glow Plug Relay Controller Unit Control Module A6229000700
PLN 332.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 7852129
Alternator BMW F90 M5 F91 M8 S63M Petrol Engine Generator 250A Valeo 7852129
Promo price
PLN 1,614.95
PLN 1,453.46
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9231518
BMW F31 Antenna Aerial Diversity Trap Circuit 9231518
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
Part no. 02M911024P
Audi A3 8P 2.0 TDI CBBB Diesel Starter Motor 02M911024P
PLN 142.95
Free delivery - Fri, Dec 19
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 - Fri, Dec 19
If paid before 14:00
Part no. 9130313
BMW 3 Series E93 E93N LCI Cabrio Battery Cable Plus Pole 9130313
PLN 759.95
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 4E0035654A
Audi A6 C6 MMI Multimedia Navigation Control Head Unit 4E0035654A
Promo price
PLN 1,073.95
PLN 751.77
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 9325537
BMW 5 Series F10 Electric Parking Brake Module Cable Wiring Loom 9325537
PLN 94.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 4H0907063BA
Audi A6 C7 Onboard Supply BCM Body Control Module Unit ECU 4H0907063BA
Promo price
PLN 142.95
PLN 128.66
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6916565
BMW 5 X5 Series E38 E39 E53 Hands-free Electronics Charging Module MOTOROLA
Promo price
PLN 37.95
PLN 36.05
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 8685853
BMW F40 X1 F48 Mini F55 F56 F60 Engine Injector Wiring Loom Harness 8685853
Promo price
PLN 284.95
PLN 199.47
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6976156
BMW E60 E61 E63 Passenger Side Door Air Control Module 6976156
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 7823310
BMW 3 Series F30 F31 330d 330dX N57N Diesel Alternator Starter Cable B+ 7823310
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8T0907468AD
Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
PLN 61.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. AV6T14A067BC
Ford Transit Connect Mk2 II Fuse Box Battery Terminal Unit Module AV6T14A067BC
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 8X0959793K
Audi A1 8X Door Module Front Right O/S Driver's Side Control Unit ECU 8X0959793K
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. F20-On-Board-Screen
On-Board Screen BMW F20 F21 F30 F31 Information Display Touch Monitor 8,8"
Promo price
PLN 1,206.95
PLN 1,086.26
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 5Q0907530AH
Audi A3 S3 RS3 8V Gateway Control Module GW MQB Mid Unit ECU 5Q0907530AH
Promo price
PLN 70.95
PLN 67.40
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2075403434
PDC Wiring Mercedes W204 W207 Parktronic Parking Sensor Cable Rear A2075403434
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6861026
BMW I01 F45 F46 Mini F55 F56 Parking Assistant PDC Control Unit Module 6861026
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A1725400433
Electric Wire Mercedes SLK R172 M271 Alternator Prefuse Box Wiring A1725400433
Promo price
PLN 93.95
PLN 84.56
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 9284976
BMW F13 F12 F06 Daschboard Display Central Information Display Monitor 9284976
Promo price
PLN 474.95
PLN 332.47
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A2059006213
Mercedes W205 Rear Door Module Control Unit ECU Left N/S A2059006213
PLN 94.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2079012500
Air Module Mercedes C204 C207 Sensor Control Unit ECU A2079012500
Promo price
PLN 142.95
PLN 128.66
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. MB3T-14B060-ABE-1
VW Volkswagen Amarok NF Engine Wiring Loom Harness Cable MB3T-14B060-ABE
PLN 379.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 9327318
BMW 1 2 3 4 5 F10 F20 F22 F30 F32 Navigation Sat Nav DAB Head Unit High 9327318
PLN 1,472.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6929347
BMW 1 3 Series E82 E90 E92 Roof Antenna Aerial Shark Fin 6929347 6950704
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8671504-1
Starter BMW G20 G21 G30 G32GT G01 G05 Starter Motor Valeo 8671504
Promo price
PLN 237.95
PLN 214.16
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 5Q0937615C-1
Audi TT FV Fuse Relay Box Module Electrical Control Unit 5Q0937615C
Promo price
PLN 61.95
PLN 55.76
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A0015424423
Parktronic Screen Mercedes W207 W212 Front Parking Sensor Display A0015424423
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6907519-1
BMW 7 SERIES E65 E66 E67 Battery cable plus pole 6907519
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2129003508
Mercedes W207 W906 Fuel Pump Control Unit Module ECU A2129003508
Promo price
PLN 123.95
PLN 117.75
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8W0035192E
Audi A4 B9 Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 8W0035192E
Promo price
PLN 1,139.95
PLN 1,025.96
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9142398
Mini Cooper R55 R56 Cable Wiring Set HiFi Driver's Side 9142398
Promo price
PLN 113.95
PLN 102.56
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2038219551-2
Mercedes CL203 Rear Roof Alarm Motion Sensor Control Unit Module A2038219551
Promo price
PLN 56.95
PLN 54.10
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9247081
BMW X1 E84 Wiring Loom Harness Passenger Side 9247081
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. MB3G-12C550-CG
VW Volkswagen Amarok Mk2 Glow Plug Relay Unit Module ECU MB3G-12C550-CG
PLN 949.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 4M0941823E
Audi Q7 4M Positive Battery Terminal Distribution Box 4M0941823E
PLN 284.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9259467
Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467
Promo price
PLN 93.95
PLN 89.25
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 7561834-13
BMW E87 E90 120i 320i N46 150HP Engine Control DME Module 7561834 Automatic
Promo price
PLN 664.95
PLN 465.47
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 6948182
BMW E60 E61 LCI Alarm System Unit Ultra Sonic Module
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A6519007703
Mercedes W906 Glow Plug Relay Module Unit A6519007703
Promo price
PLN 189.95
PLN 180.45
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 6820931
Telematics Module BMW X1 F48 F20 F30 Bluetooth GPS Control Unit ECU 6820931
Promo price
PLN 161.95
PLN 145.76
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A1729008500-3
Mercedes W166 W204 Display Screen Information Navigation Dashboard A1729008500
PLN 142.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. A1718204326
Mercedes SLK R171 Front Air Module SRS Control Unit ECU A1718204326
PLN 949.95
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A1679009011
Mercedes W205 C213 X253 Rear Door Control Module Unit ECU Left N/S A1679009011
Promo price
PLN 189.95
PLN 132.97
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 6C0907159B
Volkswagen Polo 6C Body Sound Impact Control Module ECU 6C0907159B
PLN 118.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 4H0971365J
Audi A8 D4 Seat Cable Front Left Right N/O/S Seatbelt Warning Wiring 4H0971365J
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 6887753
BMW F20 F21 F22 F30 F31 F32 ICM Control Unit Module ECU 6868599
Promo price
PLN 284.95
PLN 256.46
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9389657
BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9389657
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 94520-4H0004X
Hyundai H-1 Dashboard Panel Digital Clock Watch Unit 94520-4H0004X
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8657337
Starter Motor BMW F90 M5 G11 G30 Petrol Engine Starter Actuator DENSO 8657337
Promo price
PLN 569.95
PLN 512.96
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9244189
BMW F20 F21 F30 F31 Telematics Module Bluetooth Combox Telematik ECU 9244189
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. E93-RADIO
BMW E93 Head Unit Radio Player Navigation Control Module 5A2BF31
Promo price
PLN 332.95
PLN 233.07
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 7790996
Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996
PLN 47.95
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2709002100-15
Mercedes C117 CLA 180 270.910 122HP Engine ECU Kit A2709002100 Automatic
Promo price
PLN 1,899.95
PLN 1,709.96
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 5A0FAD6
BMW i4 G26 Hybrid Electric Earth Ground Cable Negative Battery Lead 5A0FAD6
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8S0907468D
Audi TT FV Mk3 8S Gateway Module Interface Data Bus Control Unit 8S0907468D
PLN 184.95
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 8W6971036G
Audi A4 B9 A5 F5 Front Door Wiring Harness Cable Passenger Side 8W6971036D
PLN 180.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9329339
BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339
Promo price
PLN 75.95
PLN 72.15
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A0009053006
Battery Wire Mercedes W205 Negative Cable With Battery Sensor 48V A0009053006
Promo price
PLN 332.95
PLN 233.07
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 8574048
Mini F54 F55 F56 F57 F60 Engine Starter Motor Plug Bracket Holder Mount 8574048
Promo price
PLN 42.95
PLN 40.80
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9866980
BMW F20 Body Control Unit Module REM Fuse Box 9866980
Promo price
PLN 123.95
PLN 111.56
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 8576484
BMW X3 G01 G20 G21 G30 G31 Starter Acoustic Vibration Plug 8576484 8588900
Promo price
PLN 28.95
PLN 27.50
Delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9273671
BMW 4 F33 Cabrio Convertible DAB Digital Radio Aerial Antenna Amplifier 9273671
Promo price
PLN 284.95
PLN 256.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2129018508
Mercedes W212 Air Bag Control Unit ECU AirBag Sensor Module A2129011105
Promo price
PLN 151.95
PLN 136.76
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 8585933
Wiring Loom Harness BMW F20 F30 F36 LCI B47 Engine Gearbox Module 8585933
Promo price
PLN 522.95
PLN 366.07
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 6956746-MB1
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Set x4 Monaco Blau - A35
PLN 94.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8T2035110B
Audi A5 8T Radio Head Unit Navi CD DVD Player Changer 8T2035110B
Promo price
PLN 189.95
PLN 170.96
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 3414473
BMW X3 E83 Transmission DXC Transfer Box Wiring Cable Loom Harness 3414473
PLN 189.95
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A1765400103
Battery Cable Mercedes C117 W176 Starter Alternator Wiring Harness A1765400103
Promo price
PLN 322.95
PLN 226.07
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 6700003892
Smart Fortwo C453 Power Steering Column Control Unit Module 6700003892
PLN 142.95
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 8K0971104AE
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AE
Promo price
PLN 189.95
PLN 180.45
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2045400150
Mercedes-Benz C E Class W204 W207 Fuse Distribution Box Interior A2045400150
Promo price
PLN 113.95
PLN 102.56
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A1779005509
Door Module Mercedes C118 W177 H243 Rear Left N/S Door Control A1779005509
Promo price
PLN 284.95
PLN 199.47
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 3453590
Mini Cooper R57 R58 Antenna Bumper Mounted FM/DAB Wiring 3453590
Promo price
PLN 180.95
PLN 171.90
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2319014702
Mercedes R231 Air Module Control Unit ECU SRS Module A2319014702
Promo price
PLN 949.95
PLN 854.96
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9280622
FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9280622
Promo price
PLN 474.95
PLN 427.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 8617709
BMW Mini Cooper F55 F56 Wiring Harness Motor Sensorsystem Module 8617709
Promo price
PLN 503.95
PLN 453.56
Free delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. 9229875
BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359229875 9229875
Promo price
PLN 141.95
PLN 99.37
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. A2465400308
Alternator Cable Mercedes W176 W246 OM651 Battery Prefuse Box A2465400308
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 6807634
BMW X5 F15 F20 F30 SRS Air Module Bag Control Unit Module ECU 6807634
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A0009056001
Battery Cable Mercedes W213 S213 Negative Lead Wiring Harness A0009056001
Promo price
PLN 123.95
PLN 111.56
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 13150706
Opel Corsa D Head Air Module Roof Side Curtain 13150706
PLN 47.95
Delivery - Fri, Dec 19
If paid before 14:00
-30%
Part no. A2189006806
Mercedes W207 Harman Control Unit Module Amplifier Premium Sound A2189006806
Promo price
PLN 2,849.95
PLN 1,994.97
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 02Z911024Q
Audi A3 8V 2.0 TDI Quattro Starter Motor Engine Diesel Bosch 02Z911024Q
PLN 189.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. 9312764
Body Control Module BMW F10 LCI ECU Junction Box PL6 JBBFE III V2 9312764
Promo price
PLN 180.95
PLN 162.86
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 80C919616
Audi Q5 FY Multimedia Volume Control Button Switch Knob Head Unit 80C919616
Promo price
PLN 94.95
PLN 90.20
Free delivery - Fri, Dec 19
If paid before 14:00
Part no. 6821970
Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 6821970
PLN 949.95
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A1715450032
Mercedes SLK R171 PDC Parking Distance Control Unit Module Sensor A1715450032
Promo price
PLN 61.95
PLN 55.76
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A2049009410
Mercedes W204 CD Player Radio Stereo Navigation Sat Nav Head Unit A2049009410
Promo price
PLN 237.95
PLN 214.16
Free delivery - Fri, Dec 19
If paid before 14:00
-5%
Part no. 9322532
Gateway Module BMW F01 F10 F11 F12 Central Body Control 9244262
Promo price
PLN 61.95
PLN 58.85
Free delivery - Fri, Dec 19
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 - Fri, Dec 19
If paid before 14:00
-10%
Part no. A1728202989
Mercedes SLK R172 Roadster Antenna Amplifier Control Module A1728202989
Promo price
PLN 85.95
PLN 77.36
Free delivery - Fri, Dec 19
If paid before 14:00
-10%
Part no. A1669003407
Mercedes W176 W204 Digital Audio DAB Receiver Control Unit Module A1669003407
Promo price
PLN 94.95
PLN 85.46
Free delivery - Fri, Dec 19
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 .