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. 8P0035192SX
Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192QX
Promo price
PLN 949.95
PLN 854.96
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6950525
BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9223689
BMW X1 E84 Display Screen Monitor On-board CID TV Navigation System 8,8" 9223689
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8K0959655L
Audi A4 B8 Air Module Control Unit ECU Crash Control 8K0959655L
PLN 75.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 3Q0907530BB-1
Audi Q2 GA Central Gateway Control Unit Module Relay ECU 3Q0907530BB
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8642707-1
Mini Cooper S F56 B48 192 HP Engine ECU DME Kit BDC + Key 8642707 Automatic
Promo price
PLN 2,849.95
PLN 1,994.97
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
Part no. 06M907309D-1
Audi SQ5 FY 3.0 TFSI 354HP CWGD Quattro Engine ECU Kit Gateway + Key 06M907309D
PLN 2,374.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7222633
BMW E90 E91 LCI Flat Cable Wiring Wire CAS Start Stop ECU Loom 7222633
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
Part no. A2469005010
Mercedes W176 W246 Parktronic Parking Control Unit Module ECU A2469005010
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2135402870
Ground Cable Mercedes C238 Fuse Box Wire Prefuse Box Wiring A2135402870
Promo price
PLN 141.95
PLN 127.76
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8510221-1
BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 CAS3 + Key
Promo price
PLN 949.95
PLN 664.97
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9148267
BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267
Promo price
PLN 398.95
PLN 279.27
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9196669
CD Changer 6 Disc BMW E81 E87 E90 E91 E92 Without Magazine 9196669
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 04L911021
Audi A5 8T 2.0 TDI CNHA Diesel Engine Motor Starter 04L911021
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8K0907539
Audi A5 S5 8T Dashboard Sunlight Solar Sun Sensor 8K0907539
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8580059
Mini F56 F60 BMW F40 F39 Diesel B37 Battery Starter Alternator Wiring 8580059
Promo price
PLN 70.95
PLN 63.86
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1635402333
Mercedes-Benz M ML W163 Centre Console Wiring Harness Cable Loom A1635402333
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9130047
BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6836210
Telematics Control Unit Mini F54 F55 F56 F57 F60 Module 84106836210 6836210
Promo price
PLN 61.95
PLN 55.76
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 307873750AA
Mercedes W176 Steering Wheel Wiring Loom Harness 307873750AA
Promo price
PLN 93.95
PLN 84.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8615581
BMW 3 F30 LCI 330e B48X Control Unit Bracket Holder Mount 8615581
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0014460340
Mercedes W245 B150 CDI OM266.920 Engine Control Unit Module ECU A0014460340
Promo price
PLN 42.95
PLN 38.66
Delivery - Tue, Dec 16
If paid before 14:00
Part no. A0009061705
Mercedes W205 C63 Petrol Engine 14V 200A Alternator Generator Unit A0009061705
PLN 522.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9236519
BMW 1 Series E81 E87 LCI Front PDC Parking Distance Control Loom Wiring 9236519
PLN 189.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1765405608
Mercedes-Benz A-Class W176 Rear Right Door Wiring Cable A1765405608
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8P3035223B
Audi S3 8P Audio Sound System Amplifier Bose 290328
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6C1T-14A120-AD
Ford Transit Mk7 Starter Motor Wiring Cable 2.2 TDCi 6C1T-14A120-AD
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 6911908
On Board Monitor BMW X5 E70 X6 E71 Sat Nav System Screen Display 8,8" 6911908
Promo price
PLN 284.95
PLN 199.47
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8W0915459E
Audi A4 B9 Battery Positive Terminal Cable Plus Pole Wiring Harness 8W0915459E
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 2755095
Mini Clubman R55 Amplifier Holder System HiFi Stereo Audio 2755095
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1729003106
Mercedes SLC R172 Parktronic Parking Sensor Module Unit ECU A1729003106
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9381114
BMW F20 F21 F30 F31 F32 Mini F56 F57 Seat Control Unit Module Heating 9381114
Promo price
PLN 56.95
PLN 54.10
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9303543
BMW F20 F30 F31 Fuse Box Electrical Power Distribution 9303543
Promo price
PLN 284.95
PLN 256.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8518268-2
BMW E90 E91 LCI 318d Diesel 143HP N47N ECU Kit DDE 8518268 + CAS3 + Key Manual
Promo price
PLN 664.95
PLN 598.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1715409245
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715409245
Promo price
PLN 75.95
PLN 68.36
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2215408445
Mercedes W221 Radar Distronic Adaptive Cruise Control Sensor A2215408445
Promo price
PLN 1,614.95
PLN 1,453.46
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 7619136
BMW E84 F25 F26 N20 Engine Sensor Module Wiring Cable Loom Harness 7619136
Promo price
PLN 237.95
PLN 166.57
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8470176-4
Mini Cooper D F55 F56 B37 1.5 116HP Engine ECU Kit DME BDC + Key 8470176 Manual
Promo price
PLN 1,567.95
PLN 1,097.57
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9326452
Door Wiring Harness BMW F34 Rear Left Right Door N/O/S Wiring Loom 9326452
Promo price
PLN 142.95
PLN 135.80
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9119495
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9119495
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 5QA919294C
Audi Seat Skoda Volkswagen PDC Parking Sensor Control Unit Module 5QA919294J
Promo price
PLN 104.95
PLN 99.70
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6949228-1
2 x Mini Cooper R52 Convertible DWA Door Alarm System Module Unit Set 6949228
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8T0915181
Audi A4 RS4 B8 Battery Terminal Negative Cable Loom Harness Wiring 8T0915181
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 912034H670
Hyundai H-1 Fuse Box Front Relay Engine Control Unit Module ECU 91203-4H670
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9824925
Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925
Promo price
PLN 2,849.95
PLN 2,564.96
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. V23134-J59-X431
Mazda 6 GJ TYCO Relay Black Unit Module 4 Pin 12V V23134-J59-X431
PLN 42.95
Delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 5Q0959592B
Audi A3 8V Door Module Control Unit Front Passenger Side 5Q0959592B
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 6977681
BMW E60 E61 E63 X3 E83 F25 Cigarette Lighter Power Socket 12V 6917701
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9857620
Door Wiring Mini F60 Cable Loom Rear Left Right N/O/S Harness 9857620
Promo price
PLN 170.95
PLN 119.67
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2059001611
Mercedes W205 Door Module Front Right O/S Control Unit ECU A2059001611
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 13720856
Mercedes W212 Negative Cable Battery Terminal Wiring 13720856
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 231A07345R
Smart Fortwo C453 Central Door Locking Control Unit Module ECU 231A07345R
PLN 189.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2075406010-1
Mercedes W207 Front Bumper PDC Wiring Parking Sensor Loom Harness A2075406010
Promo price
PLN 379.95
PLN 341.96
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0121542002
Mercedes W903 OM611 Diesel Alternator Engine Generator 14V 90A A0121542002
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9171984
BMW E60 E61 E63 E64 LCI Control Unit Lane Departure Warning Module ECU 9171984
PLN 180.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9121903
BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9121903
Promo price
PLN 617.95
PLN 432.57
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0055422618
Rate Sensor Mercedes W212 ESP Yaw Rotation Control Unit Module A0055422618
Promo price
PLN 46.95
PLN 44.60
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2213201058
Mercedes R231 Valve Block Air Suspension Control Unit A2123200358
Promo price
PLN 854.95
PLN 769.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9226885
BMW F20 F21 Aerial Antenna Amplifier Diversity DAB 9226885
Promo price
PLN 85.95
PLN 77.36
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9321023
BMW F45 X1 F48 Mini F55 F56 B+ Junction Terminal Power Distribution Box 9321023
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0009822923-1
Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey SET X2 A0009822923
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6966551
BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passengers Side 6966549
Promo price
PLN 104.95
PLN 94.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1648202715
Electrical Wiring Cable Mercedes W164 W251 Radio Media Interface A1648202715
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 04L907309AB-1
Audi Q3 8U 2.0 TDI DFTA 150HP Quattro Engine ECU Kit Ignition + Key 04L907309AB
Promo price
PLN 664.95
PLN 465.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 918545-102
BMW F11 Wiring Cable Loom 918545-102 767832-113
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 81A035035G
Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
Promo price
PLN 3,324.95
PLN 2,327.47
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2055403706
Mercedes W205 Front Axle Damper Adjustment Left N/S Wiring Harness A2055403706
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
Part no. 4M0959792H
Audi A5 F5 Door Module Control Unit ECU Front Passenger Side 4M0959792H
PLN 189.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9805075680
Citroen Relay Peugeot Boxer III Engine Glow Plugs Wiring Harness 9805075680
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A9065400341
Battery Cable Mercedes Sprinter W906 Negative Lead Wiring Harness A9065400341
Promo price
PLN 51.95
PLN 46.76
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 6860936
BMW i3 I01 F45 F46 Control Unit SAS Module ECU 6860936
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4H0951223
Audi A6 C7 Single Horn Alarm Siren High Tone Control Unit Module 4H0951223
Promo price
PLN 123.95
PLN 117.75
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
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 - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-10%
Part no. A9079051202
Mercedes Sprinter W907 Battery Wire Negative Lead Cable A9079051202
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5K0959793C
Skoda Octavia RS 1Z Door Module Control Unit ECU 5K0959793C
PLN 237.95
Free delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9290621
BMW F33 F83 M4 Convertible Top Phone Antenna Aerial Module CTM Unit 9290621
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 6R0919433
VW Volkswagen Audi Seat Skoda Glow Plug Relay Unit Black 505 7 Pins 6R0919433
PLN 42.95
Delivery - Tue, Dec 16
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 - Tue, Dec 16
If paid before 14:00
Part no. 7638001
BMW 1 3 Series F20 F21 F30 F31 N47N Earth Cable Battery Engine 7638001
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9322122-2
Display Screen BMW F20 F21 F22 Central Information Sat Nav Monitor 6,5" 9322122
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A2749000800-7
Mercedes W205 C200 274.920 184HP Engine Control ECU Kit A2749000800 Automatic
PLN 1,329.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6R0915181E
Audi A1 8X Battery Cable Loom Harness Wiring Negative Terminal 6R0915181E
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2038219751-1
Mercedes-Benz C-Class W203 Alarm Sensor Module Unit A2038219751
Promo price
PLN 65.95
PLN 62.65
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9230944
Control Unit BMW F01 F02 F07 F10 F11 CAS4 Key Reading Module 9230944
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
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 .