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. 9231175
Diversity Antenna Amplifier BMW F30 F32 Rear Window DAB Module Unit 9231175
Promo price
PLN 123.95
PLN 111.56
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6945147
BMW 5 6 Series E60 E61 E63 Passenger Door Airbag Control Module 6945147
Promo price
PLN 28.95
PLN 27.50
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. 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. 6809050
BMW F20 F30 Rear Electronic Module REM Fuse Box Control Unit V2 ECU 6809050
Promo price
PLN 94.95
PLN 90.20
Free 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. 9160187
BMW 1 Series E81 Body Control Module ECU L2 PL2 JBBFE II Junction Box 9160187
Promo price
PLN 42.95
PLN 40.80
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
-30%
Part no. 4H0907064FB
Audi A8 D4 BCM Module Body Control Unit Convenience ECU 4H0907064FB
Promo price
PLN 189.95
PLN 132.97
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8709212
Body Control Module BMW F20 F30 F31 BCM Unit FEM Lear V12 ECU 8709212
Promo price
PLN 569.95
PLN 512.96
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9259354
BMW F10 F20 F30 Camera Module Reversing Rear View Camera Control 9259354
PLN 474.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9195756-1
BMW E60 LCI Radio Player M-ASK M-Audio System Controller Head Unit 9195756
Promo price
PLN 332.95
PLN 233.07
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. 5A243F5
BMW F70 G60 U06 Rear Ultrasonic Sensor Parking PDC Portimao Blue C31 5A243F5
PLN 123.95
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
-30%
Part no. 9149836
Seat Control Unit BMW X5 E70 E87 E90 Module ECU Electronic Module 9149836
Promo price
PLN 142.95
PLN 100.07
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6942990
BMW 5 6 Series E60 E61 E63 E64 Actuator Air Distribution Flap Matrix Heater
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9207075
BMW X3 X5 Series E83 E53 Telematics Control Unit Module 9207075
Promo price
PLN 284.95
PLN 199.47
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. 8Y0971085A
Audi S3 8Y Electric Front Bumper Wiring Harness PDC Loom Cable 8Y0971085A
PLN 341.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9298945
BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9298945
Promo price
PLN 474.95
PLN 427.46
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 5M0907357C
Volkswagen VW Tiguan 5N Headlight Range Control Unit Module ECU 5M0907357C
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9141446
BMW E93 Cabrio Convertible Hydraulic Pump Power Supply Cable 9141446
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2128270128-IRS
Roof Antenna Mercedes W212 Shark Trim Panel Iridium Silver - 775 A2128270128
Promo price
PLN 94.95
PLN 90.20
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8571038
BMW 1 F20 F21 LCI Mini D F56 B37 Wiring Harness Engine Glow Plug Module 8571038
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A0009002308
Mercedes W447 W906 Adblue Module Exhaust Gas Control Unit ECU A0009002308
Promo price
PLN 189.95
PLN 170.96
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2048701126
Mercedes S204 Door Module Rear Left N/S Control Unit ECU A2048701126
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9311113
Mini R55 R56 R57 LCI R60 R61 Navigation Head Unit CHAMP 2 Sat Nav DAB 9311113
PLN 712.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2118704785
Mercedes W211 Front Seat Memory Control Unit Module Left Right N/O/S A2118704785
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 3B0035711B
Seat Leon Mk3 5F Hands Free Microphone Module Speaker Wiring Loom 3B0035711B
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 03C972619CG
VW Passat B7 Engine Wiring Loom Cable Harness Injector Module Petrol 03C972619CG
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 406349
Mini Cooper One R50 R52 R53 iPod Interface Control Unit Module 0406349
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8573258-10
Engine Control Unit BMW F20 116d F30 316d N47N 116HP ECU DDE 8573258 Manual
Promo price
PLN 113.95
PLN 102.56
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A2709000900-8
Mercedes W246 B180 270.910 122HP ECU Wiring Loom Harness Cable Plug A2709000900
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A2048205189
Mercedes-Benz C-Class W204 Aerial Antenna Amplifier Unit A2048205189
Promo price
PLN 75.95
PLN 68.36
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 1K0907719C
Audi A3 8P Anti Theft Alarm System Control Module Unit ECU 1K0907719C
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2139003029
Mercedes A238 Fuse Box Control Unit SAM Module Relay A2139003029
Promo price
PLN 379.95
PLN 265.97
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A2128203589
Antenna Amplifier Mercedes W212 Aerial Module Rear Roof Frame Right A2128203589
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 6774078-1
BMW Mini Cooper One R50 R53 R55 R56 R57 Input Cylinder Clutch Control 6758825
PLN 75.95
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 8507924
Gearbox Wiring BMW F20 F30 125d 325d N47S1 Engine Loom Harness Cables 8507924
Promo price
PLN 360.95
PLN 252.67
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A1775401629
Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6949229-1
2 x Mini R52 Convertible DWA Door Alarm System Module Control Unit Set 6949229
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 9149835
BMW X5 E70 Front Seat Control Unit Module Driver's Side 9149835
Promo price
PLN 246.95
PLN 222.26
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8X0971693A
Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693A
Promo price
PLN 85.95
PLN 81.65
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8T0959793K
Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793K
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
Part no. A2215408908
Mercedes W221 Door Harness Wiring Loom Rear Right O/S A2215408908
PLN 113.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1695457740
Mercedes-Benz A B W169 W245 Bracket Starter Alternator Control Unit A1695457740
Promo price
PLN 28.95
PLN 27.50
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A6229001000
Mercedes W447 114CDI OM622.851 136HP Engine Control Unit Manual A6229001000
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9154349
BMW MINI Clubman R55 Cable Wiring Loom Splitdoor Split Door Rear Left N/S
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 8D0951253-1
Audi A4 B6 B7 B8 Q7 4L A6 C7 A8 D4 Multi Use Relay Unit Module 4 Pins 8D0951253
PLN 42.95
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 4E0959655K
Audi A8 4E S8 D3 SRS Bag Control Air Module Unit Bosch 4E0959655K
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 9389310
BMW F45 Door Wiring Front Driver's Door Loom Cable Wiring Harness 9389310
PLN 75.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 4E0910110E
Audi S6 C6 6-Disc CD Changer Magazine Head Unit MMI 4E0910110E
PLN 142.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 8634244
Engine Wiring BMW F45 Mini F60 B38 Loom Harness Injection Valve Ignition 8634244
Promo price
PLN 75.95
PLN 68.36
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A1779005505
Door Module Mercedes W177 W247 Rear Left Right N/O/S Control Unit A1779005505
Promo price
PLN 61.95
PLN 55.76
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K0971349JQ
Audi A3 8P 1.2 TFSI CBZB Alternator Wiring Harness Cable Loom 1K0971349JQ
PLN 100.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1725400035
Electrical Cable Mercedes R172 Transmission To Body Wiring Harness A1725400035
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 8509910
BMW X3 F25 X4 F26 Engine Electronics Control Unit Box Cover Trim 8509910
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. A1669061202
Mercedes W221 Fuse Box Control Unit Module Relay A1669061202
Promo price
PLN 142.95
PLN 128.66
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 5N0035552K
VW Tiguan 5N Antenna Amplifier Module Control Right O/S Unit 5N0035552K
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9253111-1
BMW 1 2 Series F20 F21 F22 Positive Plus Pole Battery Blow Cable Part 9253111
Promo price
PLN 75.95
PLN 72.15
Free delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. 9171900
BMW X5 E70 X6 E71 Computer Control Unit DVD Player RSE MID PLUS PL4 9171900
Promo price
PLN 1,424.95
PLN 997.47
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. A4709820700
Mercedes W470 Glow Plug Relay Module Unit A4709820700
PLN 94.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 7792130
BMW Mini Cooper One R50 R52 R53 R55 R56 R57 Earth Ground Cable 7792130
Promo price
PLN 47.95
PLN 45.55
Delivery - Wed, Dec 17
If paid before 14:00
Part no. 95B971228AA
Porsche Macan 95B Battery Starter Motor Alternator Wire Cable Loom 95B971228AA
PLN 379.95
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 8J0057186Q
Audi TT 8J Radio Head Unit CD Audio Player Control Unit 8J0035186Q
PLN 370.95
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6799576
BMW F10 F11 ICM Control Module Unit 6799576
Promo price
PLN 42.95
PLN 40.80
Delivery - Wed, Dec 17
If paid before 14:00
-30%
Part no. A2518703390
Mercedes W251 Rear Passengers Entertainment Control Unit A2518703390
Promo price
PLN 331.95
PLN 232.37
Free delivery - Wed, Dec 17
If paid before 14:00
Part no. 1K0937087J
Skoda Octavia II Body Control Module Convenience Unit BCM ECU 1K0937087J
PLN 180.95
Free delivery - Wed, Dec 17
If paid before 14:00
-10%
Part no. 4G8971365
Audi A7 4G Seat Cable Front Left Right N/O/S Wiring Loom Harness 4G8971365
Promo price
PLN 94.95
PLN 85.46
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. A1669000318
Mercedes-Benz A B Class W176 W246 Front Left N/S Door Control Unit Module ECU
Promo price
PLN 123.95
PLN 117.75
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 6857314
Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU
Promo price
PLN 61.95
PLN 58.85
Free delivery - Wed, Dec 17
If paid before 14:00
-5%
Part no. 9362396
BMW F20 REM Rear Electronic Module Fuse Box Control Unit V3 9362396
Promo price
PLN 61.95
PLN 58.85
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 .