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. 8636069
BMW F20 F30 LCI B48 Engine Gearbox Module Wiring Cable Loom Harness 8636069
Promo price
PLN 332.95
PLN 233.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6766003
BMW X3 E83 Z4 E85 E86 Fuel Pump Module Control Unit 6766003
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9348411
BMW X3 F25 Hifi System Audio Sound Amplifier AMP Module Unit 9348411
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8590041
BMW G30 G31 B47 Diesel Glow Heater Plug Engine Wiring Loom Cable 8589786
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8506199-3
BMW E60 E61 LCI 520d Diesel N47 Engine ECU Kit DDE 8506199 CAS 3 + Key
Promo price
PLN 664.95
PLN 465.47
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2059002922
Door Module Mercedes W205 W253 C253 Front Left N/S Control Unit ECU A2059002922
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7P0907801D
VW Touareg 7P Handbrake Electric Parking Brake Control Module 7P0907801D
PLN 379.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6921857
BMW X5 E39 E46 E53 Motorola Hands-free Electronics Control Unit ECU 6921857
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. BK3D18D815BE-1
Ford Transit MK8 Radio Stereo Audio USB Head Unit Panel BK3D-18D815-BE
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 7606628
BMW F10 M5 F06 F12 F13 M6 S63N Engine Alternator Generator 14V 210A 7606628
PLN 332.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1439674
BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 5TRK0200UK
BMW X5 E53 GPS Vehicle Location Tracker Control Unit Module ECU 5TRK0200UK
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K3959857B
Volkswagen Polo 6R Golf Mk6 3-Door Window Lifter Switch Driver's Side 1K3959857A
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1695458140
Mercedes W169 W245 Relay Control Unit Bracket Mount Holder Cover A1695458140
Promo price
PLN 66.95
PLN 63.60
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A9079001605
Mercedes W907 Central Gateway Control Unit Module Relay ECU A9079001605
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9154329
Mini Clubman R55 Cable Wiring Loom Splitdoor Door Rear Right O/S 9154329
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6956744-1
BMW E81 E82 E87 E88 E90 E91 Parking Sensor PDC Sydneyblau - A19 6956744 SET X2
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2115452647
Bracket Mount Mercedes W211 W219 Control Unit Module SAM Holder A2115452647
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8V0035399C
Audi A3 8V A-Pillar Speaker Tweeter Front Left Right N/O/S 8V0035399C
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 6800903-2
Mini R50 R52 R53 Steering Wheel Horn Switch Left Right N/O/S Set 6800903
Promo price
PLN 85.95
PLN 77.36
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9437208
BMW F45 F48 F49 Mini Countryman F60 Ground Earth Cable Adapter Mass 9437208
PLN 113.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8518568-4
BMW F20 F30 F32 120d 320d 420d N47N 184HP Engine Unit ECU DDE 8518568 Automatic
Promo price
PLN 379.95
PLN 341.96
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8T0907468D
Audi A4 B8 A5 8T Gateway Diagnostic Interface Control Unit Module ECU 8T0907468R
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 5Q0971230FP
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230FP
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2139005213
Mercedes W213 Door Control ECU Module Front Left N/S A2139005213
Promo price
PLN 142.95
PLN 135.80
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9360501
Mini F54 F55 F56 F57 F60 Rear Electric Power Distribution Fuse Box 9360501
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A6569000200-1
Mercedes W213 E400d OM656.929 Diesel Engine ECU Kit A6569000200 Automatic
Promo price
PLN 2,279.95
PLN 1,595.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. N000000003996
Mercedes Universal Fuse Relay Electrical Unit Set Bag N000000 003996
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9231443
BMW 3 Series F30 F80 M3 Radio Antenna Amplifier Suppression Filter 9231443
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9296981
Battery Cable Mini F55 F56 BMW X2 F39 Diesel B37 Positive Cable Wiring 9296981
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8W0907159F
Audi A4 S4 B9 A5 S5 Impact Sound Actuator Control Module 8W0907159F
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 7631932
Engine Wiring BMW F30 F31 N20 Loom Module Harness Cable 7631932
Promo price
PLN 617.95
PLN 556.16
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2055406921
Battery Wiring Mercedes X253 Diesel OM651 Alternator Harness Cable A2055406921
Promo price
PLN 80.95
PLN 76.90
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 04L906021CK
Audi Q5 8R 2.0 TDI CNHA Quattro 190HP Engine Unit ECU Kit 04L906021CK Automatic
PLN 1,899.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8W8971687M
Audi A5 F5 Sportback Door Wiring Harness Loom Rear Left N/S 8W8971687M
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9381837
BMW X1 F48 Mini F55 F56 Air Module Control Unit ECU 9381837
Promo price
PLN 360.95
PLN 252.67
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8506281
BMW E81 E87 E90 LCI 116d 316d 118d 318d N47 Engine ECU DDE 8506281 Manual
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2139008330
Mercedes W177 W213 W247 Automatic Gearbox Control Unit Module ECU A2139008330
PLN 379.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A0009067902
Mercedes W204 S204 C204 Alternator Generator 150A 14V 1.8 Petrol A0009067902
PLN 161.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2129007124
Mercedes W212 Fuse Box SAM Control Module Unit ECU A2129007124
PLN 142.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2469017000
Mercedes W176 Windscreen Rain Sensor Unit Module A2469017000
Promo price
PLN 99.95
PLN 89.96
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 2240962-1
MIni R50 R53 PDC Front Parking Sensor Royal Grey - A48 2240962
PLN 61.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1669008009
Mercedes GLE W166 Rear Door Wiring Control Module Right O/S Unit ECU A1669008009
Promo price
PLN 165.95
PLN 157.65
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 7856819
Battery Cable BMW F90 M5 F91 M8 Wire Lead Positive Alternator Starter B+ 7856819
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8595865
Wiring BMW F32 F33 F36 LCI N57Z Engine Gearbox Module Wiring Harness 8595865
Promo price
PLN 378.95
PLN 341.06
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9324779
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM LR-01 9324779
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A1679009330
Mercedes C118 W167 W177 W243 W247 Ignition Control Module Unit ECU A1679009330
PLN 1,139.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8V3971035A
Audi A3 S3 8V 3D Door Wiring Harness Loom Cable Driver's Side 8V3971035A
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6858698
BMW F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6858698
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 03L906022FL
Audi A6 C6 3.0 TDI 233HP Diesel Engine Control Unit ECU Kit Module 03L906022FL
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. GV6T14A073DF
Ford Transit Connect Mk2 II Fuse Box Body Control Module GV6T14A073DF
Promo price
PLN 161.95
PLN 145.76
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8573257-1
BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP ECU Kit DDE 8573257 Automatic
Promo price
PLN 474.95
PLN 427.46
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8067512
BMW F10 F11 F30 F31 Alarm System Unit Security Basis Module 8067512
PLN 256.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2074405433
Mercedes-Benz E W207 Cabrio A207 AdBlue Additive Fuel Tank Wiring Adapter Cable
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 8518268
BMW E90 E91 LCI N47N 318d Diesel Engine Control Unit DDE ECU Manual 8518268
PLN 237.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A1669003602
Mercedes W204 R172 DAB Receiver Digital Audio Control Unit Module A1669003602
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2124405833
Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2124405833
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9153966
BMW E93 ECU Body Control Module H1 PL2 JBBFE 61359153966 9153966
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A1775401731
Mercedes W177 M282 Wiring Harness Battery Starter Motor Alternator A1775401731
Promo price
PLN 284.95
PLN 199.47
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9342033-1
BMW F10 F20 F30 Head Unit Media Navigation Headunit Player 9342033
PLN 379.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8055326
BMW 3 4 Series F80 M3 F82 M4 LCI Fuel Tank Heat Insulation Plate 8055326
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. EXHAUST-FLAP-CONTROL
Audi A3 8V 1.6 TDI CLHA Drive Exhaust Flap Control Module Unit Actuator
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 141951253B-3
Audi VW Volkswagen Seat Relay Number 53 Unit Module 4 Pins Set Of 2 141951253B
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 2751444
Mini R56 DAB/IBOC Tuner Bracket Holder Mounting 2751444
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2749003900
Mercedes Vito W447 Electronic Control Unit Module ECU A2749003900
Promo price
PLN 949.95
PLN 664.97
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 4E0910217C
Audi Q7 4L Front Camera FAS Lane Assistance Control Unit 4E0910217D
Promo price
PLN 237.95
PLN 214.16
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8R0907468F
Audi A5 8T Diagnostic Interface Gateway Control Module Unit ECU 8R0907468F
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9157158
BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9157158
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 95230-4H200
Hyundai H-1 iLoad Relay Module Control Unit ECU 95230-4H200
Promo price
PLN 474.95
PLN 332.47
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8589168
Alternator Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589168
Promo price
PLN 237.95
PLN 166.57
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2385452700
Mercedes C238 Rear Control Unit Module Bracket Holder Trim Panel A2385452700
Promo price
PLN 66.95
PLN 63.60
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2769007500
Mercedes W205 C43 4MATIC M276.823 367HP Engine Control ECU A2769007500 Automatic
PLN 1,614.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2135406831
Mercedes W213 Rear Door Wiring Harness Keyless Left Right N/O/S A2135406831
PLN 113.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2048706826
Mercedes W204 ECU Control Unit Sensor Module Airbag A2048706826
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 3417160
BMW X3 E83 LCI Cable Alternator Starter Base B 3417160
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 4H0951253C-1
Volkswagen Polo 6R Tiguan 1T Multi Use Control Module Relay SET 4H0951253C
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 969713
BMW F01 F07 Boot Trunk Lid Tailgate Lock Wiring Harness Loom Cable 969713
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2118703285
Mercedes W211 Door Module Rear Right O/S Control Unit ECU A2118703285
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 8W1907064BC
Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BC
PLN 474.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6923215
BMW E46 Inclination Indicator Alarm Tilt Sensor Module 6923215
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K0907115J-1
Volkswagen Golf Mk5 1K V 2.0 TFSI BWA 200HP Engine Unit ECU 1K0907115J Automatic
PLN 807.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 5F4971693
Audi A1 8X Door Window Switch Loom Cable Rear Left Right N/O/S 5F4971693
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1K0971250AH
VW Golf Mk5 V Negative Battery Terminal Cable Wiring 1K0971250AH
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9317174
BMW F30 REM Rear Electronic Module Fuse Box Control Unit V2 9317174
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2469055003-1
Ignition Switch Mercedes W167 W177 W247 Lock Control Unit Module A2469055003
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6927000
BMW E63 E64 Amplifier Holder Catch Bracket Video Module 6927000
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8J0951177
Audi TT 8J Interior Roof Alarm Motion Ultrasonic Sensor 8J0951177
Promo price
PLN 142.95
PLN 135.80
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 5E5035577B
Skoda Octavia 5E Antenna Amplifier Aerial Control Module Unit 5E5035577B
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9286249
BMW 3 Series F30 F31 Rear Door Wiring Loom Cable Harness 9286249
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. D1BT14D212NA
Ford Transit Connect Mk2 II Bluetooth Control Module Unit ECU D1BT14D212NA
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2055401604
Mercedes W205 Battery Cable Wiring Harness Loom Petrol Hybrid A2055401604
Promo price
PLN 100.95
PLN 95.90
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9247067
BMW X3 F25 Footwell Light Module Control Unit ECU FRM3 9247067
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 3D0915181C
Volkswagen Phaeton 3D 5.0 V10 Battery Control Module Unit ECU 3D0915181C
PLN 474.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8507981
BMW F07 GT F10 F11 Engine Wiring Loom Harness Cables M57Z Diesel 8507981
Promo price
PLN 854.95
PLN 598.47
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9292945
BMW F20 F21 F22 F30 F31 F32 F36 FEM Module Control Unit 9292945
Promo price
PLN 522.95
PLN 366.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1776203400
Mercedes W177 W247 Battery Bracket Mount Holder Support A1776265300
Promo price
PLN 56.95
PLN 54.10
Delivery - Wed, Dec 17
If paid before 14:00
Part no. A2709002100-9
Mercedes W176 A160 W246 B160 270.910 102HP Engine ECU Unit A2709002100 Manual
PLN 522.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A1665400180
Mercedes W166 Fuse Box Relay Cover Shield Cap Trim A1665400180
Promo price
PLN 56.95
PLN 51.26
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 1477973
Ford Transit Connect Mk1 Starter Motor Engine Actuator 1.8 Diesel 2T14-11000-BC
PLN 189.95
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 .