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. 9252549
BMW F12 Front Seat Control Unit Module Memory ECU 9252549
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 4G0035061A
Volkswagen Touareg 7P Multimedia Navigation Radio Control Head Unit 4G0035061A
PLN 1,139.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 03C971612BR
Audi A1 8X 1.4 TSI Engine Wiring Loom Harnes 03C971612BR
Promo price
PLN 332.95
PLN 233.07
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9197177-1
BMW 1 Series E88 Cabrio Footwell Light Module Control Unit ECU NSW 9197177
Promo price
PLN 170.95
PLN 119.67
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8506373
BMW X3 Series E83 LCI 1.8d N47 Engine Control Unit ECU Module DDE 8506373 Manual
Promo price
PLN 617.95
PLN 556.16
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2515400524
Mercedes W251 Fuse Relay Electrical Box Housing Cover A2515400524
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A6429060900
Mercedes W204 W207 W212 W221 Starter Motor A6429060900
PLN 161.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9286640
Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9286640
Promo price
PLN 1,234.95
PLN 1,111.46
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7839662
BMW E90 E92 E93 LCI Cable Alternator Starter Base B 7839662
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8635811-1
BMW F20 F30 LCI 118i 318i B38 Engine Wiring Loom Harness Cables 8635811
Promo price
PLN 332.95
PLN 299.66
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1718200015
Mercedes SLK R171 Rear Window Heating Cable Loom Heat Wiring Harness A1718200015
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A2218705089
Mercedes W221 Audio Amplifier Sound Harman Becker Control Unit A2218705089
PLN 4,084.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9367837
Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 6960803
BMW E65 E66 E67 Control Unit Voice Input System Module 6960803
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 079903805J
Audi A4 B6 B7 4.2 V8 FSI Alternator Bracket Mount Holder 079903805J
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 5WB959107B
Audi Q2 GA Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7367747
Promo price
PLN 474.95
PLN 332.47
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 6942551
BMW E87 E90 E91 Front Left N/S Seat Lordosis Pad Adapter Lead Wiring
PLN 85.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8582279-8
BMW F30 F32 F34 GT 320d 420d N47N 184HP Engine Module Unit ECU DDE 8582279
Promo price
PLN 189.95
PLN 170.96
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A1779008103
Mercedes W177 W247 Telematics Module Communication Control Unit A1779008103
PLN 189.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 83F971104F
Audi Q3 F3 Rear Bumper PDC Wiring Loom Cabling Parking Sensor 83F971104F
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9362445
BMW F20 F21 F22 Audio Amplifier Harman Kardon Active Sound Design Unit 9362445
PLN 379.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 9835622
BMW X4 F98 G02 Active Sound Design Module Control Unit Harman Kardon 9835622
Promo price
PLN 332.95
PLN 299.66
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8510832
BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Automatic
Promo price
PLN 617.95
PLN 432.57
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2198202026
Door Module Mercedes C219 Front Door Right O/S Control Unit A2198202026
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6866990
Airbag Module BMW F01 F02 LCI F10 F11 F13 Air Bag ECU ICM Control Unit 6866990
Promo price
PLN 132.95
PLN 119.66
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1635400734
Mercedes-Benz M ML W163 Rear Left Right Door Wiring Loom Harness A1635400734
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4L0910655B
Audi Q7 4L ECU Air Module Control Unit Crash Impact Sensor 4L0910655B
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7849627
BMW F80 M3 F82 M4 Engine Valvetronic Wiring Cable Loom Harness 7849627
Promo price
PLN 161.95
PLN 153.85
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A2535400701-1
Mercedes A238 M276 Engine Alternator Wiring Loom Cable Harness A2535400701
PLN 161.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2108207626
Mercedes-Benz C E W202 W210 Front Right Door O/S Control Module A2108207626
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A9079051602
Mercedes W907 Aerial Antenna Amplifier Control Unit Module A9079051602
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9210860
BMW X3 F25 Rear Fuse Box Power Distribution Control Unit Box 9210860
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8577764-1
BMW F10 F11 520d Diesel N47N 184HP ECU Kit DDE 8577764 + Key + CAS4 Automatic
Promo price
PLN 1,168.95
PLN 818.27
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9163173
BMW E60 E61 LCi Right Left Rear Door Wiring Loom N/O/S 9120797
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8T0035223AH
Audi A4 B8 8K A5 8T Amplifier Audio Sound Booster Module 8T0035223
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 7801711-1
BMW X3 E83 2.0d M47N2 Engine Control Unit Module ECU DDE 7801711 Manual
Promo price
PLN 949.95
PLN 664.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1698207526
Mercedes-Benz A B Class W169 W245 Door Control Unit Left N/S Rear A1698207526
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 8626472-1
BMW F20 F21 M135i N55 326HP Petrol Engine Control Unit ECU DME 8626472 Automatic
PLN 1,234.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 9225792
BMW Z4 E89 Wiring Loom Passenger Side Door Cables Cable Harness 9225792
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8512415-9
Mini One D R60 N47N 90HP Diesel Engine Control Module ECU DDE 8512415 Manual
Promo price
PLN 949.95
PLN 854.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2429004101
Mercedes W204 W212 Telephone Control Unit Module ECU A2429004101
Promo price
PLN 94.95
PLN 90.20
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 8519009
BMW X1 E84 20d 20dX Diesel N47N Engine Control Unit ECU DDE 8519009 Manual
PLN 379.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7514342-1
BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7525434
Mini R52 R53 W11 Battery Cable Wire Harness Starter Base B 7525434
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4E0907280B
Audi A8 4E S8 D3 Power Supply Control Module Unit ECU 4E0907280B
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8578946-3
BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic
Promo price
PLN 569.95
PLN 512.96
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4F0959795E
Audi A6 C6 Rear Door Left N/S Module Unit Control ECU 4F0959795E
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8510829-3
BMW E90 E91 LCI 320d N47N Engine Basic DDE 8510829 Control Unit Manual
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1729003406
Mercedes SLK R172 Roadster Soft Top Folding Roof Control Module A1729003406
Promo price
PLN 141.95
PLN 99.37
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 4M0959760A
Audi A5 F5 Seat Module Control Unit ECU Front Left Right N/O/S 4M0959760A
PLN 379.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 04E971612ES
Seat Ibiza 6J Engine Wiring Harness Loom Manual Gearbox 1.2 TSI CJZC 04E971612ES
PLN 180.95
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A0009053006
Battery Wire Mercedes W205 Negative Cable With Battery Sensor 48V A0009053006
Promo price
PLN 332.95
PLN 233.07
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9286941
BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9286941
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
Part no. KD45-57KC0
Mazda 6 GJ Impact Crash Sensor Control Unit Module KD45-57KC0
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9294206
BMW F25 CD DVD Navigation Sat Nav Head Unit 9294206
Promo price
PLN 332.95
PLN 233.07
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2049005908-2
Mercedes W204 Navigation CD Player COMAND Radio Sat Nav Head Unit A2049005908
Promo price
PLN 474.95
PLN 427.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8W1907063AG
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AG
Promo price
PLN 1,139.95
PLN 1,025.96
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2135409616-1
Mercedes Sprinter W910 Battery Sensor Negative Terminal Cable Wiring A2135409616
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 9287530
BMW 1 Series F20 Control Unit Air Conditioning A/C Module 9287530
Promo price
PLN 55.95
PLN 53.15
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 8576333-1
BMW F10 F11 520d X3 F25 20dX N47N 184HP ECU Kit DDE 8576333 Key CAS4 Automatic
Promo price
PLN 902.95
PLN 632.07
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 3C0937049AE
Volkswagen Golf Mk5 1K Module BCM Body Control Unit Module ECU 3C0937049AE
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 5Q0971230AQ
Seat Leon 5F VW Golf Mk7 Alternator Wiring Harness Loom Cable 5Q0971230AQ
PLN 61.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2075451740
Mercedes-Benz A207 W207 Cabrio Control Unit Module Bracket Holder A2075451740
Promo price
PLN 66.95
PLN 63.60
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8377601
BMW E38 Door Windows Control Unit Module ECU ZB PMBT LOW 8377601
Promo price
PLN 85.95
PLN 81.65
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1779005409
Door Module Mercedes C118 W177 H243 Front Right O/S Door Control A1779005409
Promo price
PLN 284.95
PLN 199.47
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2059008204
Mercedes W205 SAM Module Fuse Box Relay Control Unit A2059008204
Promo price
PLN 379.95
PLN 265.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7558911
BMW 1 Series E81 E82 E87N E88 NOx Cable Wiring Petrol 7558911 12517558911
Promo price
PLN 75.95
PLN 72.15
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0009004802
Air Module Mercedes W639 W906 ECU Control Unit Crash Impact A0009004802
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A2465405833
Mercedes W176 W246 Starter Cable Loom Wiring 160 180 CDI Diesel A2465405833
Promo price
PLN 47.95
PLN 45.55
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 5Q0937084DR
Audi Q2 GA Body Control Comfort Unit Module BCM Unit ECU 5Q0937084DR
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A2218707386
Mercedes W221 Door Control Unit Module Right Rear O/S A2218707386
Promo price
PLN 113.95
PLN 102.56
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A1645403130
Mercedes W164 Positive Battery Cable Wiring A1645403130
Promo price
PLN 664.95
PLN 465.47
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 3D0959759B
VW Volkswagen Phaeton 3D Seat Control Unit ECU Front Passenger Side 3D0959759B
PLN 94.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 2G0971104C
Volkswagen Polo Mk6 PDC Sensor Wiring Loom Harness Cable Rear Bumper 2G0971104C
Promo price
PLN 180.95
PLN 162.86
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A1646803535
Mercedes-Benz M-Class ML W164 B-Pillar Trim Cover Bottom Left N/S A1646801935
Promo price
PLN 66.95
PLN 60.26
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0009056001
Battery Cable Mercedes W213 S213 Negative Lead Wiring Harness A0009056001
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0009062822-1
Mercedes W207 W212 W906 Engine Diesel 200A 14V Alternator Generator LRA03818
Promo price
PLN 436.95
PLN 393.26
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 9342033
BMW F10 F20 F30 Head Unit Media Navigation Headunit Player 9342033
Promo price
PLN 123.95
PLN 86.77
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A2439008400
Mercedes GLC X253 Sound Audio Amplifier Module Rear Harman A2439008400
Promo price
PLN 189.95
PLN 132.97
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 8380407-1
BMW X5 E53 Power Distribution Fusebox Cover Fuse Box 8380407
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 6923945
BMW 5 6 SERIES E60 E60N E61 E61N E63 B terminal point engine compartment 6923945
Promo price
PLN 56.95
PLN 51.26
Delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 4H0951253
Audi A3 8P Multi Use Control Module Relay 4 Pin Light Green Unit 4H0951253
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
Part no. A1779002410
Mercedes W177 Air Module SRS System Control Unit ECU A1779002410
PLN 284.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 7120204
BMW E93 Cable Wiring Loom Harness Hydraulic Pump 7120204 7191362
Promo price
PLN 142.95
PLN 128.66
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 80A906093
Audi Q5 FY Fuel Pump Control Unit Module ECU Diesel Kuhnke 80A906093
Promo price
PLN 94.95
PLN 85.46
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 8678960
Mini Cooper S F55 F56 F57 F60 Valvetronic Wiring Cable Loom Harness 8678960
Promo price
PLN 56.95
PLN 51.26
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 9381102
BMW F20 F30 F36 Front Electronic Module Control Unit FEM 9381102
PLN 427.95
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. 7636292-1
BMW F20 F30 116i 316i N13 136HP Engine Control ECU Kit DME 7636292 Manual
PLN 2,374.95
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 55585024
Vauxhall Opel Insignia A 2.0 TDCI Engine Control Module 55585024 Manual
Promo price
PLN 123.95
PLN 111.56
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A0009006007
Fuel Pump Module Mercedes W205 Control Unit ECU A0009006007
Promo price
PLN 61.95
PLN 58.85
Free delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. A0009060922
Alternator Mercedes W212 W447 X253 C238 Petrol M274 150A Bosch A0009060922
Promo price
PLN 237.95
PLN 214.16
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. 7555188-1
BMW F01 F07 GT F10 F11 F12 F13 Control Unit Box Cover Cap 7555189
Promo price
PLN 37.95
PLN 36.05
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 5WA959436P
Volkswagen Golf CD1 Keyless Go Module ECU Entry Control Unit 5WA959436P
Promo price
PLN 47.95
PLN 43.16
Delivery - Tue, Dec 16
If paid before 14:00
Part no. 7515197-1
Mini Cooper One R50 W10 Battery Cable Wiring Plus Pole 7515197
PLN 42.95
Delivery - Tue, Dec 16
If paid before 14:00
-10%
Part no. 7823973-1
BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 7823973 CAS3 + Key
Promo price
PLN 807.95
PLN 727.16
Free delivery - Tue, Dec 16
If paid before 14:00
Part no. A6229000700
Mercedes W447 Bosch Glow Plug Relay Controller Unit Control Module A6229000700
PLN 332.95
Free delivery - Tue, Dec 16
If paid before 14:00
-5%
Part no. A1635400382
Mercedes ML W163 Fuse Relay Box ECU Cover Trim A1635400382
Promo price
PLN 42.95
PLN 40.80
Delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. A6519007500-13
Mercedes W212 E250 CDI 651.924 204HP Engine Unit ECU Kit A6519007500 Key Lock
Promo price
PLN 1,139.95
PLN 797.97
Free delivery - Tue, Dec 16
If paid before 14:00
-30%
Part no. 3428557
BMW Z4 E86 Alarm System Ultrasonic Roof Control Module 3428557
Promo price
PLN 332.95
PLN 233.07
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 .