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. 8733503
BMW F30 Fuse Box Front Body Control Module ECU BCM Unit 8733503
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0005459712
Mercedes W447 OM654 Power Distributor Box Conectors Socket A0005459712
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A0009828323
Mercedes W176 W246 Power Relay Control Module 5 Pin 12V A0009828323
Promo price
PLN 37.95
PLN 36.05
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 80C919616
Audi Q5 FY Multimedia Volume Control Button Switch Knob Head Unit 80C919616
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 7805349-2
BMW X3 E83 LCI M47N2 2.0d 150HP ECU Kit DDE EWS4 Key 7805349 Manual
Promo price
PLN 902.95
PLN 632.07
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7446712
BMW F23 Cabrio Convertible Folding Top Roof ECU Control Unit CVM Module 7446712
PLN 569.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8K0959793N
Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793N
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 7P6035552N
VW Touareg 7P Antenna Amplifier Signal Booster Module Rear Right O/S 7P6035552N
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 5Q0971230ES
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230ES
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9216128
BMW 3 4 5 Series E92 F32 E61 LCPA Seat Belt Module ECU 9216128
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 5H0963554
Volkswagen Golf Mk8 Rear Seat Bench Couch Occupancy Sensor Unit 5H0963554
PLN 123.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 04E907309AC-1
Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit BCM Lock + Key 04E907309AC Manual
Promo price
PLN 664.95
PLN 465.47
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8574351-3
BMW X1 E84 18d 18dX Diesel N47N 143HP Engine Unit ECU DDE 8574351 Automatic
Promo price
PLN 379.95
PLN 341.96
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 95B907553T
Porsche Macan 95B Air Suspension Control Module Unit ECU 95B907553T
PLN 1,044.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8W0915181A
Audi A5 F5 HV Battery Negative Cable Terminal 8W0915181A
Promo price
PLN 123.95
PLN 111.56
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2038219751
Mercedes C-Class W203 Roof Alarm Motion Sensor Cover Trim Grey A2038219751
Promo price
PLN 56.95
PLN 54.10
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 9228323
BMW F01 F10 F20 F30 F32 Camera Module Reversing Rear View Control Unit 9228323
PLN 427.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7L0941824A
Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941828A
PLN 80.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2139003208
Mercedes W213 SAM Module Rear Body Comfort Control Unit ECU A2139003208
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1695408033
Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 6947795
BMW E81 E87 E90 E91 E92 LCi Parking Control Module Unit PDC 6947795
PLN 522.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8W0959595M
Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M
Promo price
PLN 113.95
PLN 102.56
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 95B035773A
Porsche Macan 95B Telematics Control Unit Module ECU 95B035773A
PLN 474.95
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A9075407160
Mercedes W907 W910 Battery Electrical Wiring Harness Ground Line A9075407160
Promo price
PLN 123.95
PLN 111.56
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9282118
BMW F10 CAS4 Control Unit Module 9282118 61359282118
Promo price
PLN 265.95
PLN 186.17
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8573257-6
BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8573257 Automatic
Promo price
PLN 379.95
PLN 341.96
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2118704026
Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118704026
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2198202426
Mercedes CLS W219 Door Module Front Right O/S Control Unit A2198202426
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A1729002301
Mercedes SLK R172 Door Control Unit Module Front Left N/S A1729002301
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2075403332
Convertible Cable Mercedes A207 C207 Roof Rail Wiring Harness A2075403332
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8598806-1
BMW X3 F25 20dX Diesel B47 190HP Engine Module ECU Kit DDE 8598806 Key CAS4
Promo price
PLN 1,709.95
PLN 1,196.97
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 81A035466B
Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B
Promo price
PLN 1,614.95
PLN 1,130.47
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 241268711R
Door Wiring Renault Master 3 Rear Sliding Cable Harness 241268711R
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A0009006516
Bluetooth Module Mercedes S205 W205 W177 Active Parking Assist Control Rear
Promo price
PLN 474.95
PLN 332.47
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. A2069055100
Mercedes C118 W167 W177 W206 W247 Stereo Amplifier Harman Kardon A2069055100
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A9075401205
Mercedes W907 Starter Wiring Battery Alternator Cable Harness Loom A9075401205
Promo price
PLN 113.95
PLN 102.56
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. VW-Remote-Key
VW Passat Radio Remote Control Alarm Key Fob Control Unit Module
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
Part no. N1XT-14D338-ADC
VW Volkswagen Amarok NF Wiring Harness Loom Cable N1XT-14D338-ADC
PLN 100.95
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8A0937530
Audi A6 C6 Fuse Relay Box Module Unit Holder Bracket 8A0937530
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2128203785
Door Module Mercedes W204 W212 Front Right O/S Control Unit VST A2128203785
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
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 61.95
PLN 55.76
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9348726-1
BMW F20 F21 F30 F31 Air Module Control Unit ECU 9348726 0285012518
Promo price
PLN 123.95
PLN 111.56
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8X0907063AB
Audi A1 8X BCM Body Control Module Power Supply Unit 8X0907063AB
Promo price
PLN 161.95
PLN 145.76
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2049009004
Parking Module Mercedes W204 S204 PDC Distance Control Unit Sensor A2049009004
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A6395406809
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406809
Promo price
PLN 56.95
PLN 54.10
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2078202810
Mercedes W207 Convertible Anti Theft Roof ITS TPS Sensor Module Unit A2078202810
Promo price
PLN 61.95
PLN 55.76
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A1775408609
Door Wiring Mercedes W177 W247 Front Passenger Side Cable Harness A1775408609
Promo price
PLN 66.95
PLN 63.60
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 7948147
BMW F40 F44 Rear Seat Bench Occupancy Mat Control Unit Sensor 7948147
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8U0971104C
Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104C
Promo price
PLN 170.95
PLN 119.67
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 8W0971553
Audi A4 B9 Front Seat Side Air Module Wiring Harness Loom Cable 8W0971553
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 89393773
Audi Q7 4L Headlight Module Ballast Control Unit 89393773
Promo price
PLN 75.95
PLN 68.36
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8U0907468BA
Audi Q3 8U Gateway Control Module Unit ECU 8U0907468AQ
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 4H0907468AF
Audi A8 D4 Central Diagnostic Getaway PKO Control Unit Module ECU 4H0907468AF
Promo price
PLN 474.95
PLN 427.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 51871158
Vauxhall Combo Fiat Doblo Positive Battery Cable Lead Wire 51871158
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9677006780
Citroen Berlingo B9 1.6 HDI 9HN Engine Control Unit ECU EDC 9677006780 Manual
Promo price
PLN 113.95
PLN 102.56
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 3Q0959354
Seat Leon Mk3 Door Crash Impact Sensor Front Left Right N/O/S 3Q0959354
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 5H0971385F
Volkswagen Golf Mk8 CD1 Rear Seat Couch Wiring Harness Cable Loom 5H0971385F
Promo price
PLN 284.95
PLN 199.47
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9876796
Telematics Module Mini F55 LCI 4g Bluetooth Control Module Unit Ecu 9876796
Promo price
PLN 284.95
PLN 199.47
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 9798377-1
BMW F45 LCI 225xe B38X B38A15A 224HP Engine ECU DME Kit 9798377 BDC + Key
PLN 1,424.95
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 4M0971228DH
Audi Q7 4M Q8 Mk1 Starter Motor Wiring Harness Cable Line 4M0971228DH
PLN 474.95
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A1729060005
Mercedes R172 Rear SAM Fuse Relay Box A1729060005
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-10%
Part no. 914014H161
Hyundai H-1 Fuse Box Front Relay Engine Control Unit Module ECU 91401-4H161
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9240083
BMW X5 E70 X6 E71 Safety Control Unit Air Module Bag ECU Bosch 9240083
Promo price
PLN 85.95
PLN 81.65
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 1H5951253
Volkswagen Touareg 7L Relay Alternator Alarm Black 4 Pin 12V No 143 1H5951253
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9312596
BMW F12 F13 LCI F06 Gran Coupe Amplifier Hifi System Sound System Module 9312596
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9244429
BMW X6 Series E71 Rear Bumper PDC Cables Wiring Loom Set 9244429
Promo price
PLN 237.95
PLN 166.57
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 4H0937555
Audi A8L 4H Fuse Box Relay Chamber Lower Cover Lid Housing 4H0937555
Promo price
PLN 61.95
PLN 58.85
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 7172536
BMW F01 F10 F11 F20 F21 E90 LCI Control Unit Xenon Light 7172536
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9231515
BMW F31 Rear Antenna Aerial Amplifier AM/FM DAB 9231515
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-30%
Part no. JK2T15K868AB
Ford Transit Custom Rear Bumper PDC Cables Wiring Loom Harness JK2T-15K868-AB
Promo price
PLN 142.95
PLN 100.07
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6857701
BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Plus Control Unit Module 6857701
Promo price
PLN 75.95
PLN 72.15
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2225403150
Fuse Box Mercedes W205 Front Passenger Side Footwell Fuse Box A2225403150
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
Part no. 2225618
Ford Transit Custom Mk1 Engine Starter Motor 2.0 EcoBlue GK2T-11000-AB
PLN 265.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 191906383C
Audi VW Volkswagen Seat Relay Unit Module 4 Pins 191906383C
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 9162930-WB1
BMW E81 E82 E87 E90 E91 Parking Sensor PDC Ultrasonic Bluewater - 896 SET X2
Promo price
PLN 94.95
PLN 85.46
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 8P3907357B
Audi S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B
Promo price
PLN 42.95
PLN 40.80
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. GTC055R
Mercedes W207 W212 Display Screen Android Navigation Infotainment Unit GTC055R
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. A2054400534
Mercedes C205 Bumper PDC Wiring Loom Rear Parking Sensor A2054400534
Promo price
PLN 189.95
PLN 170.96
Free delivery - Mon, Dec 22
If paid before 14:00
Part no. 3D0937576
VW Volkswagen Phaeton 3D Main Fuse Socket Electrical Control Unit 3D0937576
PLN 42.95
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2198200226
Door Module Mercedes C219 Rear Door Left N/S Control Module A2198200226
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9213373
Mini Cooper R57 Convertible Cabrio Petrol Fuse Box 9213373
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A1179008700
Mercedes GLA X156 Air Module Safety Belt Tensioner Unit Control A1179008700
Promo price
PLN 379.95
PLN 265.97
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
-5%
Part no. A2045451040
Mercedes W204 W212 Multimedia Interface Unit Module Bracket Mount A22045451040
Promo price
PLN 94.95
PLN 90.20
Free delivery - Mon, Dec 22
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 - Mon, Dec 22
If paid before 14:00
Part no. 0AH911023G
Audi Seat Skoda Volkswagen 1.2 TSI Petrol Starter Motor 0AH911023G
PLN 189.95
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 9811260
BMW Mini Cooper R60 Wiring Passenger Loom Front Door Cables Left N/S 9811260
Promo price
PLN 47.95
PLN 45.55
Delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 9292655
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9292655
Promo price
PLN 474.95
PLN 332.47
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 7641649
BMW F10 F20 F30 N20 125i 328i 528i N20 Wiring Harness Engine Module 1 7641649
Promo price
PLN 237.95
PLN 214.16
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. 8506666-5
Mini One R56 LCI 90HP N47N Diesel Engine ECU Control Unit DDE 8506666 Manual
Promo price
PLN 427.95
PLN 299.57
Free delivery - Mon, Dec 22
If paid before 14:00
-5%
Part no. 6957759
BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6957759
Promo price
PLN 85.95
PLN 81.65
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A0024463140-4
Mercedes W169 A160 CDI 95HP M266.920 Engine ECU Kit A0024463140 Automatic
Promo price
PLN 949.95
PLN 664.97
Free delivery - Mon, Dec 22
If paid before 14:00
-10%
Part no. 8593105
BMW G30 G11 G14 Diesel B57 Wiring Glow Plugs Module Wiring Harness 8593105
Promo price
PLN 142.95
PLN 128.66
Free delivery - Mon, Dec 22
If paid before 14:00
-30%
Part no. A2059009643
Mercedes W205 Telematics Bluetooth Module Control Unit ECU A2059009643
Promo price
PLN 189.95
PLN 132.97
Free delivery - Mon, Dec 22
If paid before 14:00
Key components of vehicle electrical systems
Original electrical parts for popular car brands
A car's electrical system is a complex system responsible for many key functions—from engine starting to lighting and on-board electronics. Modern cars are equipped with increasingly advanced electrical solutions that not only improve driving comfort but also enhance safety. At the Global Parts automotive store you will find a wide range of used car parts , such as alternators, starters, batteries, control modules and other automotive electrical systems that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini and many others.
How does a car's electrical system work?
A car's electrical system is a complex system that consists of several key components that work together to ensure the vehicle's reliable operation:
- Battery accessories – Includes clamps, cables, holders and other components necessary for battery installation and maintenance.
- Electronic control modules and controllers – They control and manage the operation of various vehicle systems, such as the engine, air conditioning and ABS.
- Alternators and generators – Responsible for generating electricity and charging the battery while the engine is running.
- Parts for alternators and generators – Including voltage regulators, brushes and bearings that ensure proper operation of the alternator.
- Starters – Key components of the starting system that enable the engine to be started.
- Starter parts – Including bendixes, rotors and solenoids necessary for the proper operation of the starter.
- Batteries – They store the electrical energy necessary to start the engine and power on-board systems.
- Wires, harnesses and connectors – They transmit energy and electrical signals between various vehicle systems.
- Fuses and fuse boxes – Protect the electrical system against overloads and short circuits.
- Relays – They control the flow of current in individual electrical circuits of the vehicle. A functioning electrical system is the basis for the reliability of your car, regardless of operating conditions.
Key technical parameters of electrical systems
Each of these components has specific technical parameters that determine its compatibility with the vehicle. For example, alternators installed in mid-range cars (e.g., Volkswagen Passat B6) typically have a capacity of 90 A to 140 A, while luxury vehicles (e.g., Mercedes S-Class) require alternators with a capacity exceeding 180 A. Starter motors vary in torque and operating voltage – the standard is 12 V, while 24 V starters are used in heavy-duty vehicles.
Why is it worth taking care of your car's electrical system?
Regular maintenance and replacement of electrical system components is key to reliability and road safety. Faulty components can lead to:
- Problems starting the engine.
- Failure of safety systems such as ABS or airbags.
- Decreased efficiency of on-board equipment, e.g. lighting or air conditioning. At the Global Parts store we offer original used car parts , which have undergone detailed quality tests, ensuring their full functionality.
Symptoms of electrical system disruptions
In practice, electrical faults manifest themselves in a variety of ways. Drivers most often notice: dimming lights when parked, difficulty starting the engine, a voltage drop on the on-board computer, or air conditioning malfunctions. The table below presents typical correlations:
| Symptom | Possible cause | Item to check |
|---|---|---|
| Difficulty starting the engine | Worn out starter or battery | Starter motor, battery |
| Dimming the lights | Inefficient alternator | Alternator, voltage regulator |
| Electric windows not working | Damaged relays or harness | Relays, wires |
How to choose the right parts for your electrical system?
When choosing parts for the electrical system, such as alternators, starters or control modules, it is worth paying attention to:
- Vehicle-specific fit – Every car make and model requires specific specifications. At Global Parts, you'll find parts that perfectly fit BMW , Audi , Mercedes , Volkswagen , Mini, and many more .
- Technical condition – All used parts we offer are thoroughly checked to ensure their reliability.
- Technical parameters – For example, alternators should have appropriate current output, adapted to the needs of your vehicle.
Compatibility and fit
The selection of electrical parts is based primarily on OEM part numbers, but matching them to specific parameters is equally important, including current, voltage, and the number of connector pins. For example, the 120A alternator used in the Audi A4 B7 differs significantly from the 150A version installed in the Audi A6 C6 . Therefore, using manufacturer catalogs or providing the VIN makes finding the right component much easier.
Why choose used electrical parts?
Purchase of used car parts This solution allows you to combine savings with quality. Why choose it?
- Lower costs – Used alternators, starters and other parts are cheaper than new ones, but offer the same high quality.
- Ecology – You support recycling and reduce waste by choosing used car parts .
- Wide range – We offer electrical parts for the most popular car brands, so you can easily find what you need.
How to take care of your car's electrical system?
To ensure your electrical system operates reliably for years, it is worth remembering a few rules:
- Regularly check the battery condition and charge level.
- Take care of your cables and connectors – corrosion or damage can lead to voltage drops and failures.
- Monitor the operation of the alternator and starter – early detection of problems will help avoid more serious breakdowns. If you have any problems, you will find the right car parts at Global Parts that will help restore your vehicle to full working order.
Step-by-step control procedures
- Measure the battery voltage with a multimeter – the resting value should be approximately 12.6 V.
- Check the charging voltage with the engine running – the correct range is 13.8–14.5 V.
- Assess the condition of the wires and terminals – lack of corrosion and a firm seat are essential.
- If in doubt, check the quiescent current consumption – it should not exceed 0.05–0.08 A.
FAQ - Frequently asked questions about electrical systems in cars
| Question | Answer |
|---|---|
| What is a car electrical system? | This is a set of components responsible for powering and controlling all electrical functions in the car – from engine starting to multimedia. |
| What is an alternator for in a car? | The alternator generates electrical current when the engine is running and charges the battery. |
| What is the difference between a starter and an alternator? | The starter motor is used solely to start the engine, while the alternator is responsible for generating energy while driving. |
| How to check if the battery is working? | Just measure its voltage – a healthy battery should have approximately 12.6 V at rest and maintain a voltage above 10 V during cranking. |
| What are the most common symptoms of car electrical failure? | Problems starting the engine, flashing warning lights, power windows not working or dimming lights. |
| Do electrical parts from one model fit another? | Sometimes yes, but the key is to match it by VIN or OEM number – this guarantees compatibility. |
| How often should you check your electrical system? | It is worth performing basic diagnostics (battery, alternator) at least once a year or before a long trip. |
Summary: Automotive electrical systems at Global Parts Automotive Store
Automotive electrical systems are the foundation of the reliability and comfort of every modern vehicle. By choosing the right parts, such as alternators, batteries, and control modules, you can ensure your car's full operational efficiency. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .