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.
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Condition
In Stock
Price
-5%
Part no. 1K0971250AH
VW Golf Mk5 V Negative Battery Terminal Cable Wiring 1K0971250AH
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
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 - Thu, Dec 18
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 - Thu, Dec 18
If paid before 14:00
-30%
Part no. 6960000
BMW X5 Series E53 Front Bumper PDC Loom Cables Wiring Set 6960000
Promo price
PLN 237.95
PLN 166.57
Free delivery - Thu, Dec 18
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 - Thu, Dec 18
If paid before 14:00
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Part no. 5E5035577B
Skoda Octavia 5E Antenna Amplifier Aerial Control Module Unit 5E5035577B
Promo price
PLN 94.95
PLN 85.46
Free delivery - Thu, Dec 18
If paid before 14:00
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Part no. D1BT14D212NA
Ford Transit Connect Mk2 II Bluetooth Control Module Unit ECU D1BT14D212NA
Promo price
PLN 123.95
PLN 111.56
Free delivery - Thu, Dec 18
If paid before 14:00
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Part no. A1775401629-1
Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629
Promo price
PLN 94.95
PLN 85.46
Free delivery - Thu, Dec 18
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 - Thu, Dec 18
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 - Thu, Dec 18
If paid before 14:00
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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 - Thu, Dec 18
If paid before 14:00
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Part no. A1776203400
Mercedes W177 W247 Battery Bracket Mount Holder Support A1776265300
Promo price
PLN 56.95
PLN 54.10
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2469067100
Mercedes W176 W246 C117 Fuse Relay Box Control Unit Module A2469067100
Promo price
PLN 151.95
PLN 136.76
Free delivery - Thu, Dec 18
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 - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6933410
BMW E85 Fuses Electrical Fuse Set 6933410
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
Part no. A2479001416
Mercedes CLA C118 W177 W247 4matic AWD Module Control Unit A2479001416
PLN 351.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-2
BMW E92 E92N LCI PDC Wiring Loom Harness Rear Bumper
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A2479002307
Mercedes W177 W247 4Matic Transfer Control Unit Module ECU A2479002307
Promo price
PLN 569.95
PLN 398.97
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 5Q0906121D
Audi Q3 8U 2.0 TDI CFGC Fuel Sender Pump Control Module Unit ECU 5Q0906121D
Promo price
PLN 351.95
PLN 246.37
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8636054
BMW F20 F30 LCI 120i 320i 330i B48 Engine Wiring Cable Loom Harness 8636054
Promo price
PLN 712.95
PLN 499.07
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 5Q0959595M
Audi Q2 GA Front Door Module Control Unit Controller Passenger Side 5Q0959595M
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2781506020
Cable Beam Mercedes W166 W212 W221 Engine Wiring Harness Loom A2781506020
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 1Z0907115A
Skoda Octavia RS VRS 1Z II 2.0 TFSI BWA 200HP Engine Unit ECU 1Z0907115A Manual
PLN 474.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 4M0971104CB
Audi Q7 4M Rear Bumper PDC Parking Sensor Wiring Harness Loom 4M0971104CB
Promo price
PLN 142.95
PLN 128.66
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2115454840
Mercedes E-Class S211 W211 Battery Tray Holder Mounting Bracket A2115454840
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
Part no. 5Q0959592L
Volkswagen Golf Mk8 Front Door Passenger Side Module Control Unit 5Q0959592L
PLN 75.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2129004518
Door Control Unit Mercedes W204 W207 W212 Front Left N/S Module ECU A2129004518
Promo price
PLN 61.95
PLN 58.85
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6975044
BMW Mini Cooper One R50 Cable Wiring Loom Door Front Left N/S 6962777
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8K0907440
Audi Q7 4L GPS Tracking Location Control Unit Module Locator 8K0907440
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8635813
Engine Wiring BMW F20 F30 F31 LCI B38 Valvetronic Servomotor Cable Loom 8635813
Promo price
PLN 66.95
PLN 63.60
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A4475406453
Battery Cable Mercedes Vito W447 Diesel OM651 Alternator Wiring A4475406453
Promo price
PLN 94.95
PLN 85.46
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 1K0907115
Volkswagen Golf V GTI 2.0 TFSI AXX 200HP Engine Control ECU Kit 1K0907115 Manual
PLN 712.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6799083
Control Unit BMW F10 F11 X3 F25 Parking Brake Handbrake Module EMF 6799083
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 6989136-1
BMW E60 E61 E63 PDC Rear Parking Sensor Ultrasonic Titangrau II - A08 6989136
Promo price
PLN 113.95
PLN 102.56
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A0035422319
Mercedes W176 W246 Relay Battery Decoupling 12V A0035422319
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 03L906018RC-1
Audi Q3 8U 2.0 TDI CFGC Quattro Engine ECU Kit 03L906018RC Ignition + Key Manual
Promo price
PLN 949.95
PLN 664.97
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 4F0903291
Audi A6 C6 3.0 TDI Suppression Condenser Noise Filter 4F0903291
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8605458
Wiring BMW X1 E84 F11 N20 Engine Sensor System Module Wiring Harness 8605458
Promo price
PLN 378.95
PLN 265.27
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9231091
Bluetooth Control BMW E60 E87 E90 Telematics Unit Module 9231091
Promo price
PLN 75.95
PLN 72.15
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6976156
BMW E60 E61 E63 Passenger Side Door Air Control Module 6976156
Promo price
PLN 61.95
PLN 58.85
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A2129008224
Headlight Control Module Mercedes W207 W212 Unit A2129008224
Promo price
PLN 379.95
PLN 265.97
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6838610
BMW 1 Series F40 Aerial probe AM/FM Antenna 6838610
Promo price
PLN 56.95
PLN 54.10
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8506281-5
BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual
Promo price
PLN 379.95
PLN 265.97
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 6929916
BMW E63 E64 Rear Bumper PDC Cables Set Wiring Loom Harness 6929916
Product currently unavailable
-5%
Part no. 8679817
BMW F98 Earth Ground Cable Negative Battery Lead Wiring 8679817
Promo price
PLN 66.95
PLN 63.60
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8T0959792H
Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8S0820043
Audi TT FV A/C Air Condition Climate Control Module Unit ECU 8S0820043
Promo price
PLN 123.95
PLN 111.56
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A6429002900-4
Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key Lock
Promo price
PLN 2,042.95
PLN 1,430.07
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 9366407
BMW F20 F21 F30 F31 F32 Body Comfort Module FEM ECU LR01 Control Unit 9366407
PLN 664.95
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 6772742
BMW 3 4 Series F80 M3 F82 M4 Control Unit Active Sound Design 2622362
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 6R0959655M
VW Volkswagen Polo 6R Seat Ibiza 6J Air Module Control Unit ECU 6R0959655M
PLN 161.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8Y4971104BK
Audi S3 8Y Rear Bumper Wiring Harness Cable Loom 8Y4971104BK
Promo price
PLN 284.95
PLN 256.46
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 6870539
BMW F10 F11 F12 F13 Parking AID Control Module ECU 6870539
Promo price
PLN 474.95
PLN 332.47
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 9327318
BMW 1 2 3 4 5 F10 F20 F22 F30 F32 Navigation Sat Nav DAB Head Unit High 9327318
PLN 1,472.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A2479008607
SAM Module Mercedes W177 W247 Front SAM Body Comfort Control Unit A2479008607
PLN 379.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 3C0937125A-1
VW Volkswagen Tiguan 5N Passat B7 Engine Bay Fuse Relay Box Terminal 3C0937125A
PLN 42.95
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 6955116-BAQ
BMW 1 3 Series E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Barriquerot 6955116
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
Part no. 9274357
BMW 4 F32 Wiring Loom Harness Cable 9274357
PLN 142.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2118704126
Mercedes W221 Door Control Module Right Rear O/S A2118704126
Promo price
PLN 94.95
PLN 90.20
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 6807322
Positive Cable BMW F90 M5 G30 Battery Wire Lead Underfloor Wiring 6807323
Promo price
PLN 161.95
PLN 113.37
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8708259
BMW F20 F21 F30 F31 LCI G30 G31 G11 Navigation Head Unit Sat Nav High 2 8708259
PLN 2,754.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8590102
Alternator Cable BMW 5 G30 G31 G12 B57 Battery Wiring Alternator B+ 8590102
Promo price
PLN 141.95
PLN 127.76
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 8W0907064EC
Audi A5 F5 BCM Body Comfort Module Onboard Control Unit ECU 8W0907064EC
PLN 284.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 6826790
BMW F10 F20 F22 F30 Navigation Sat Nav Head Unit High 9387565
PLN 569.95
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8579478-4
BMW F20 F30 120d 320d Diesel N47N 184HP ECU Unit DDE 8579478 Automatic
Promo price
PLN 189.95
PLN 170.96
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 2S6T-14A073-AC
Ford Transit Connect Fuse Box Power Distribution Junction Relay 2S6T-14A073-AC
PLN 42.95
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 8P0035785
Audi A3 8P MMI Multimedia Interface Unit Module Control ECU 8P0035785
Promo price
PLN 189.95
PLN 170.96
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 4F0941824
Audi S6 C6 Wirie Cable Fuse Box Holder Support 4F0941824
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 7543297
BMW 5 6 Series E60 E61 E63 E64 N52 Cable Alternator Starter Base B
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8506444-3
BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
Promo price
PLN 1,044.95
PLN 731.47
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8X0959793F
Audi A1 8X Front Door Module Unit Control Driver's Side Right O/S 8X0959793F
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
Part no. A6519005301-5
Mercedes W212 E220CDI BlueEFFI OM651.924 170HP Engine ECU A6519005301 Automatic
PLN 427.95
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. A2219005404
Mercedes R231 Seat Memory Control Unit Module Front Right A2219005404
Promo price
PLN 1,662.95
PLN 1,164.07
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 7853357
Engine Wiring BMW F87 M2 N55 Petrol Loom Module 1 Harness Cable 7853357
Promo price
PLN 664.95
PLN 598.46
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 9229873
BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE III Junction Box 9229873
Promo price
PLN 180.95
PLN 162.86
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 3Q0959651A
Seat Leon Mk3 5F Deployment Crash Impact Sensor Front Centre 3Q0959651A
PLN 61.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 1J0973332A
Audi RS4 B8 Cable Loom Wiring Plug Socket 2 Pins 1J0973332A
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9244189
BMW F20 F21 F30 F31 Telematics Module Bluetooth Combox Telematik ECU 9244189
Promo price
PLN 75.95
PLN 72.15
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A2048709289
Mercedes W204 Right O/S Antenna Amplifier Filter Module A2048709289
Promo price
PLN 61.95
PLN 58.85
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A0009828523
Mercedes W164 Suspension Compressor Relay A0009828523
PLN 42.95
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A1698209126
Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126
Promo price
PLN 47.95
PLN 45.55
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9301308
BMW F20 F21 F22 F30 Control Unit Air Conditioning System 9301308
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8J0907159B
Audi TT 8J Alarm Signal Body Sound Impact Control Module Unit 8J0907159B
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 8617239
Gearbox Module Mini R55 R56 LCI R60 Automatic Transmission Unit EGS 8617239
Promo price
PLN 275.95
PLN 193.17
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 03L906018LB
Audi A6 C7 2.0 TDI CGLC 177HP Engine Control Unit ECU 03L906018LA Automatic
Promo price
PLN 284.95
PLN 199.47
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 8K0971104C
Audi A4 B8 Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104C
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 9329339
BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339
Promo price
PLN 75.95
PLN 72.15
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A2709002100-1
Mercedes W176 W246 A180 B180 BlueEFFICIENCY 270.910 122HP Engine ECU A2709002100
Promo price
PLN 1,424.95
PLN 1,282.46
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 3456911
Mini Cooper R57 PL3 SPEG H4 Fuse Distribution Box 3456911
Promo price
PLN 712.95
PLN 499.07
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 7609656-3
BMW Z4 E89 Roadster 23i N52N 204HP ECU Kit DME 7609656 CAS3 Key Manual
PLN 1,424.95
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. A6549061400
Starter Motor Mercedes W213 S213 W238 OM654 Diesel Engine Actuator A6549061400
PLN 189.95
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A1645400624
Mercedes W164 Fuse Box Relay Housing Cover A1645400624
Promo price
PLN 75.95
PLN 72.15
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 9866980
BMW F20 Body Control Unit Module REM Fuse Box 9866980
Promo price
PLN 123.95
PLN 111.56
Free delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. A1695406945
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145
Promo price
PLN 142.95
PLN 128.66
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. A0025428819-1
Mercedes W176 W246 Relay Current 4 Pin 12V Hella A0025428819 Set x2
Promo price
PLN 42.95
PLN 40.80
Delivery - Thu, Dec 18
If paid before 14:00
-10%
Part no. 7410612
BMW F34 GT Tailgate Lift Module Rear Boot Trunk Lid Control Unit ECU F005V01708
Promo price
PLN 170.95
PLN 153.86
Free delivery - Thu, Dec 18
If paid before 14:00
-5%
Part no. 5Q0959595B
Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595B
Promo price
PLN 61.95
PLN 58.85
Free delivery - Thu, Dec 18
If paid before 14:00
Part no. 9124585-SED
BMW E87 E90 PDC Parking Sensors Ultrasonic Set x2 Sedonarot - A79 9124585
PLN 61.95
Free delivery - Thu, Dec 18
If paid before 14:00
-30%
Part no. 4G0035083
Stereo DAB Radio Audi A4 B8 Q5 8R CD Player Radio Receiver Head Unit 4G0035083
Promo price
PLN 569.95
PLN 398.97
Free delivery - Thu, Dec 18
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 .