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
-30%
Part no. 9241974
Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9241974
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 95B035736A
Porsche Macan 95B USB SD SIM Card Module Multimedia Reader Port 95B035736A
PLN 474.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1698208026
Mercedes W169 Door Control Module Right Front O/S A1698208026
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 7574365-1
Alternator Generator Mini Cooper R55 R56 R57 R57 R58 LCI Petrol 7574365
PLN 113.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8516739-3
Mini Cooper D R55 R56 LCI R60 N47N Engine ECU Kit DDE 8516739 CAS3 Key Automatic
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 4F1941824B
Audi Q7 4L Fuse Box Control Module Connector Plug 4F1941824B
PLN 42.95
Delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0009003310
Mercedes W205 W213 Fuel Pump Module Control Unit ECU A0009003310
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8J0035456A
Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7855481
BMW F90 M5 F92 M8 Oil Level Sensor Wiring Harness Loom Cable 7855481
Promo price
PLN 218.95
PLN 208.00
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8803368
Display Screen BMW F45 F46 Central Information Navigation Monitor 6,5" 8803368
Promo price
PLN 664.95
PLN 598.46
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8590045
BMW G20 G21 G01 G02 B47B B47D Engine Injector Module Wiring Harness 8590045
Promo price
PLN 160.95
PLN 144.86
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9483099
Mini Cooper One F55 F56 F57 Parking Assistant Control Unit Module 9483099
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 5QA919294B
Audi A3 8V VW Volkswagen Golf VII PDC Park Assist Control Module Unit 5QA919294B
PLN 113.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A1775409357
Mercedes W177 M282 Starter Alternator Electrical Wiring Harness A1775409357
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8512500-1
BMW E81 E82 E87 LCI E88 123d Engine N47S ECU Kit DDE 8512500 CAS3 + Key Manual
PLN 1,424.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A1679001420
Central Locking Module Mercedes C118 W177 Door Lock Control Unit A1679001420
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6960803
BMW E65 E66 E67 Control Unit Voice Input System Module 6960803
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
Part no. A0131547002
Mercedes W211 CLS C219 Alternator Generator OM642 Diesel 14V 180A A0131547002
PLN 360.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A6461505072-1
Mercedes W211 E220 CDI 646.821 170HP Engine ECU Kit A6461505072 Ignition + Key
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 1421295
Mini EGS Control Unit Module ECU Programmed 5 Pins 1421295
Promo price
PLN 47.95
PLN 43.16
Delivery - Mon, Dec 22
If paid before 14:00
Part no. A2139007436
Mercedes W177 W213 Gearbox Transmission Control Module Unit ECU A2139007436
PLN 379.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2661538479-1
Mercedes W169 A150 Petrol M266.920 95HP Engine ECU Kit A2661538479 Automatic
Promo price
PLN 712.95
PLN 499.07
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2469004313
Gearbox Module Mercedes W176 Automatic Transmission Unit ECU A2469004313
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2059006337
Safety Module Mercedes S205 Airbag Belt Tensioner Control Module SRS A2059006337
Promo price
PLN 807.95
PLN 565.57
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 5WA980653C
Audi A3 S3 RS3 8Y Front Camera FAS Lane Assistance Control Unit 5WA980653C
PLN 474.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. ML3T-10C652-BA
VW Amarok NF Battery Terminal Cable Wiring Battery ML3T-10C652-BA
PLN 142.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9210860
BMW X3 F25 Rear Fuse Box Power Distribution Control Unit Box 9210860
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 4F0959793E
VW Volkswagen Tiguan 5N Front Right O/S Door ECU Module Control Unit 4F0959793E
Promo price
PLN 66.95
PLN 63.60
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7933357
Headlight Module BMW F40 LED Headlamp Control Unit Lear FLM 2 LOW 7933357
PLN 284.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 5G0035820A
Volkswagen Golf Mk7 Infotainment Multimedia Head Unit 5G0035820A
PLN 189.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2198202026
Door Module Mercedes C219 Front Door Right O/S Control Unit A2198202026
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2118705526
Mercedes W219 Motorola Telephone Control Module DC UHI MOST A2118705526
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8606306-6
BMW F30 320i N20 184HP ECU Kit Engine Control Unit DME 8606306 Key FEM Automatic
Promo price
PLN 2,374.95
PLN 1,662.47
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 3D0919473
Volkswagen Touareg 7L PDC Parking Aid System Display Panel Unit 3D0919473
PLN 94.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
Part no. 0AD927755BT
Porsche Cayenne 9PA Gearbox Control Unit Module Controller ECU 0AD927755BT
PLN 474.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 1K0971391ES
VW Golf Mk5 Seat Well Cable Front Left N/S Wiring Loom Harness 1K0971391ES
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7928648
BMW G30 LCI Radio Remote Control Receiver Module ECU Unit 434 Mhz 7928648
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A2048705490
Mercedes-Benz C W204 Digital Audio DAB Receiver Control Unit Module A2048705490
PLN 332.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2215408045
TPM Module Mercedes W221 S500 C216 Tire Pressure System Module RDK A2215408045
Promo price
PLN 42.95
PLN 38.66
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6982402-1
Parking Control Module BMW E81 E84 E87 E90 E91 E92 E93 Unit PDC 6982402
Promo price
PLN 237.95
PLN 214.16
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8638552
Supply Module BMW F90 M5 F91 M8 G05 G11 G30 Integrated Control Unit 8638552
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2215457832
Mercedes W221 Steering Column Wheel Angle Sensor Control Unit A2215457832
Promo price
PLN 284.95
PLN 256.46
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9270392-2
BMW F20 F21 F22 Central Information Display Dashboard Screen 6,5" 9270392
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
Part no. A6261410000
Mercedes S205 OM622 Diesel Engine Throttle Body Regulator Actuator A6261410000
PLN 483.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A6511504133
Mercedes W204 W212 Engine Wiring Diesel Harness Loom Cable E250 CDI A6511504633
Promo price
PLN 379.95
PLN 341.96
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 50325-MAL-600
Honda CBR F3 Battery Box Tray Covering Housing Trim Holder Bracket 50325-MAL-600
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6799712
BMW F10 F11 ICM Management Control Unit Module DSC Brakes 6799712
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 391144A240
Hyundai H-1 2.5 Diesel Engine Control Unit Module 39114-4A240 Manual
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7514342-1
BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0035455005
Mercedes W202 W210 Kick Down Kickdown Relay Electrical Module Unit A0035455005
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 7541073
Mini Cooper S R52 R53 W11 Engine Wiring Loom Harness 7541073 Automatic
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. LHD-HC-8613-R56
Mini R56 R57 R58 Display Screen Instrument Cluster Speedo Android HC-8613
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8518269-6
BMW E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8518269 Manual
Promo price
PLN 712.95
PLN 499.07
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 5A374F9
BMW F40 Radio CD Player Head Unit Navigation Sat Nav CIC Alpine 5A374F9
PLN 1,424.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0005400664
Mercedes W205 Battery Cable Wiring Harness Loom Petrol Hybrid A0005400664
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6944104
BMW X5 E53 Receiver Heating Remote Control 6944104 70545B
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2518204426
Mercedes V251 W164 Front Lamp Headlight Control Module Unit HELLA A2518204426
Promo price
PLN 42.95
PLN 38.66
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 02E911024D
Volkswagen Golf Mk7 Audi A3 8V Engine Starter Motor Start Stop Denso 02E911024D
PLN 94.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6C0907359
Audi A4 B8 Air Suspension Module Regulation Control Unit 6C0907359
Promo price
PLN 47.95
PLN 43.16
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9159332
BMW F01 F10 F11 Heater Fan Blower Unit Motor Wiring Cable Harness 9159332
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9266383
Display Screen BMW F12 F13 Central Information Monitor 10" Multimedia 9266383
Promo price
PLN 607.95
PLN 425.57
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8579479-6
BMW F20 F21 F30 F31 116HP N47N Engine Control Unit ECU Kit DDE 8579479 Manual
PLN 1,139.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 06E971627M
Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627M
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2078205489
Mercedes-Benz W207 A207 Left Right A-Pillar Radio Aerial Antenna Amplifier Unit
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 1486455080
Peugeot Expert Citroen Jumpy Negative Battery Terminal Cable Wiring 1486455080
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9170732
BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9170732
Promo price
PLN 1,614.95
PLN 1,453.46
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8511372-2
BMW F01 F07 530d 730d N57 Engine Control ECU Kit DDE 8511372 CAS4 Key Automatic
Promo price
PLN 1,187.95
PLN 831.57
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2055402850
C205 Fuse Box Mercedes C205 Electrical Interior Relay Fuse Socket Control A2055402850
Promo price
PLN 56.95
PLN 51.26
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 4L0959795B
Audi Q7 4L Door Control Module Unit ECU Rear Left N/S 4L0959795B
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 5293147
Relay Glow Littlefuse Mega Fuse 250 Amp 5293147
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8582280
Engine Control ECU BMW F20 F21 116d N47N 116HP DDE 8582280 Manual Transmission
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 4M0959795N
Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2035409213
Mercedes W203 Door Wiring Harness Front Left Right N/O/S Wiring Loom A2035409213
Promo price
PLN 70.95
PLN 67.40
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 9250456
BMW F12 Footwell Light Module Control Unit ECU FRM3 9250456
PLN 569.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2129001829
Mercedes C207 W212 Front Right Door O/S Control Unit Module A2129001829
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 6CIT-10300-BC
Ford Transit Mk7 Diesel Engine Alternator Generator Unit 6CIT-10300-BC
Promo price
PLN 284.95
PLN 256.46
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8733503
BMW F30 Fuse Box Front Body Control Module ECU BCM Unit 8733503
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
Part no. 7446712
BMW F23 Cabrio Convertible Folding Top Roof ECU Control Unit CVM Module 7446712
PLN 569.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8K0959793N
Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793N
PLN 42.95
Delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
Part no. 7P6035552N
VW Touareg 7P Antenna Amplifier Signal Booster Module Rear Right O/S 7P6035552N
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9216128
BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU 9216128
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1645400350-1
Mercedes ML W164 Fuse Prefuse Box Jump Start Terminal A1645400350
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 5H0963554
Volkswagen Golf Mk8 Rear Seat Bench Couch Occupancy Sensor Unit 5H0963554
PLN 123.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-30%
Part no. 04E907309AC-1
Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit BCM Lock + Key 04E907309AC Manual
Promo price
PLN 664.95
PLN 465.47
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8574351-3
BMW X1 E84 18d 18dX Diesel N47N 143HP Engine Unit ECU DDE 8574351 Automatic
Promo price
PLN 379.95
PLN 341.96
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 95B907553T
Porsche Macan 95B Air Suspension Control Module Unit ECU 95B907553T
PLN 1,044.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2038219751
Mercedes C-Class W203 Roof Alarm Motion Sensor Cover Trim Grey A2038219751
Promo price
PLN 56.95
PLN 54.10
Delivery - Mon, Dec 22
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 .