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
-40%
Part no. A1779002107
Door Module Mercedes CLA C118 W177 Front Door Right O/S Control Unit A1779002107
Promo price
€42.95
€25.77
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 6926445
BMW 5 Series E60 E61 LCI Heated Front Seat Control Module 6926445 9182128
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8P0035503M
Audi A3 8P Bluetooth Antenna Module Control Unit 8P0035503M
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8583423-5
Mini Cooper D R60 R61 ALL4 N47N 2.0 143HP Engine ECU DDE 8583423 Automatic
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A6395450203
Mercedes-Benz Vito W639 Fuse Box Cover Cap Trim A6395450203
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A2055403103
Alternator Starter Wiring Harness Mercedes W205 GLC C253 OM651 A2055403103
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A1645430062
Mercedes W221 Rear View Reversing Camera Control Unit Module A1645430062
€47.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8T0907468T
Audi A4 B8 A5 8T Gateway Control Unit Module ECU 8T0907468T
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A1648701589
Mercedes ML W164 Aerial Antenna Amplifier Module Unit A1648701589
€28.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A2125406250
Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
€56.95
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 4M0959795N
Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9241694
Wiring Harness BMW F10 F11 Front Bumper PDC Wiring Loom Cable 9241694
€42.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A1698201585
Mercedes W245 ECU Control Unit Sensor Air Module A1698201585
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9231178
BMW F22 F30 F80 M3 F32 Radio Antenna Amplifier AM FM 9231178
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A2709060026
Starter Motor Mercedes W176 W246 Engine Starter Unit 12V Denso A2709060026
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7075943-2
BMW E60 E61 E65 Front Left N/S Seat Height Adjustment Drive 7075943
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 6809051
BMW F20 LCI REM Rear Electronic Module Fuse Box Control 6809051
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A6519003403-1
Mercedes W906 314 CDI OM651 Engine Unit Module ECU Kit Key Lock A6519003403
Promo price
€474.95
€284.97
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. F1ET-14F142-BC
Ford Transit Connect Door Module Front Left N/S Control Unit ECU F1ET-14F142-BC
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2465451440
Mercedes W176 Fuse Relay Box Cover Cap Top Trim Lid A2465451440
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9148265
BMW E70 E87 E90 E91 E92 Seat Control Unit Module ECU 9148265
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9128982
BMW F20 F30 F31 LCI Mini F55 F56 Compensator LTE UK Control Unit Module 9128982
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9381837
BMW X1 F48 Mini F55 F56 Air Module Control Unit ECU 9381837
Promo price
€85.95
€51.57
Free delivery - Tue, Oct 28
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
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A2218705687
Mercedes W221 Linguatronic Control Module Unit ECU English Version A2218705687
Promo price
€85.95
€51.57
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 7806042
Mini R55 R56 Connecting Wiring Cable Cooper D W16 Diesel 7806042
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 4L0907468B
Audi Q7 4L Gateway Module Central Control Unit 4L0907468B
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2059006615
Mercedes W205 Windscreen Rain Sensor Front Control Unit A2059006615
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 03C972619CG
VW Passat B7 Engine Wiring Loom Cable Harness Injector Module Petrol 03C972619CG
Promo price
€104.95
€62.97
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9315096
BMW X3 F25 Rear Bumper PDC Wiring Loom Parking Sensor Cable Harness 9315096
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A1645403132
Mercedes-Benz M-Class ML W164 Wiring Loom Cable Harness Fuel Tank A1645403132
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8577839-1
BMW F32 F33 430d N57N 258HP Engine ECU DDE Kit 8577839 FEM + Key Automatic
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 7811702-2
BMW E81 E82 E87 LCI E88 N47S 123d ECU Kit DDE 7811702 + CAS3 + Key Manual
Promo price
€142.95
€85.77
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7614083
BMW F20 F21 F22 F30 F31 F32 LCI Earth Ground Cable Battery Wiring 7614083
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9808786
Mini Paceman R61 Front Right O/S Window Lifter Mechanism Motor Regulator 9808786
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8601245
Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8601245
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A2535402605
Mercedes GLC X253 Rear Bumper Wiring Loom PDC Harness Parking Sensor A2535402605
€66.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A6421508900-1
Mercedes W212 E350 CDI OM642.852 Engine Control Unit Module ECU A6421508900
€222.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A4145400130
Mercedes-Benz Vaneo W414 Cable Starter Line Positive Line Battery A4145400130
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A0061510301
Mercedes W169 W245 Petrol Engine Starter Motor M266 A0061510301
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6982652
BMW 1 Series E82 E88 Positive Battery Lead Cable Wire 61126982652 6982652
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 4M0959595N
Audi Q7 4M Rear Door Control Module Unit ECU Left Right N/O/S 4M0959595N
€32.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7237647
BMW E90 LCI F01 F10 F11 F20 F21 Control Unit Xenon Light 7237647
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6928050
BMW 7 Series E65 E66 E67 Battery Cable Wire Earth Ground Minus Negative L=260MM
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 5Q0971250T
Volkswagen Golf Mk7 Seat Leon 5F Battery Wire Negative Earth Lead 5Q0971250T
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. F1ET-14F144-BC
Ford Transit Connect Door Module Front Right O/S Control Unit ECU F1ET-14F144-BC
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 6839769
KaFAS Module BMW F10 F20 F30 Mini F55 F56 Assist Camera Control Unit 6839769
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8714621
Mini Cooper One F55 F56 F60 Telematics Control Unit Module 8734756
Promo price
€237.95
€142.77
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A0035422819
Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A1699002000
Head Unit Mercedes W169 W245 CD Player Radio Audio A1699002000
€47.95
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8598806-1
BMW X3 F25 20dX Diesel B47 190HP Engine Module ECU Kit DDE 8598806 Key CAS4
Promo price
€460.95
€276.57
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8X0959792H
Audi Q3 8U Door Module Front Door Left N/S Control Module 8X0959792H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7938196
PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 7938196
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8678964
BMW X1 F48 Mini Cooper F55 F56 Engine Gearbox Module Wiring Cable Loom 8678964
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2128208726
Mercedes W212 Door Module Rear Left N/S Control Unit ECU A2128208726
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8K0907637A
Audi A5 8T Acceleration Yaw Rate Sensor Module Control Unit ECU 8K0907637A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9276009
BMW F07 GT Rear Antenna Aerial Amplifier AM/FM DABIII FBD2 868MHZ 9237057
Promo price
€189.95
€161.46
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A0355400145
Mercedes ML W164 C209 W211 C219 AMG Fuel Pump Control Module A0355400145
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9239155
BMW F01 F10 CIC Professional Sat Nav Infotainment Radio Head Unit 9239155
€455.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 3Q0907530AA
Audi Seat Skoda Volkswagen Gateway Control Unit Module ECU 3Q0907530AA
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6857124
Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU 6857124
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 6982403
BMW E81 E82 E87 E88 E90 E91 E92 E93 Parking Control Module Unit PDC
€85.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9226357
BMW F20 F21 F30 TOP HIFI Loudspeaker Tweeter Harman Kardon 9226357
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A2055408104
Battery Cable Mercedes W205 X253 Diesel OM651 Alternator Wiring A2055408104
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8573260-5
ECU Kit BMW F20 F21 116d Diesel N47N 116HP DDE 8573260 Key FEM Lock Manual
Promo price
€308.95
€185.37
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6960259
BMW 1 3 SERIES E81 E82 E87 E90 E91 E92 E93 Flat Cable Wiring Wire CAS Start Stop
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A9075407312
Mercedes W907 Battery Fuse Box Positive Distribution Terminal A2479061803
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 7809999-3
BMW X3 E83 LCI 1.8sd 2.0sd N47 177HP Engine Control Unit ECU DDE 7809999 Manual
€180.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 8513184-3
BMW X3 F25 20dX Diesel N47N 184HP Engine Module ECU DDE 8513184 Manual
€47.95
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8506434-4
BMW E81 E84 E87 E90 LCI 18d 118d 318d N47 ECU Kit DDE 8506434 CAS3 Key Automatic
Promo price
€251.95
€151.17
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9145349
BMW 3 5 X3 X5 Series E39 E46 E53 E83 Control Unit Control Unit EWS IV 9145349
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9350336
BMW F06 F12 F13 F80 Mini F56 Radio CD Player Head Unit 9395949
€75.95
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9212916
BMW 5 7 X5 E70 F01 F02 F10 F11 Rain / Light / Solar Fogging Sensor 9212916
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 6992955
BMW F25 Footwell Light Control Module ECU Unit FRM3 TEMIC 6992955
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7615305
Engine Wiring BMW F20 F21 F30 F31 N13 Loom Module Harness Cable 7615305
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9362398
BMW F20 F21 F30 F31 F32 F45 Body Control Unit Module REM 9362398
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8574351-2
BMW X1 E84 18dX Diesel N47N Engine Unit ECU Kit DDE 8574351 Manual
Promo price
€142.95
€85.77
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8X0959795C
Audi Q3 8U Door Module Rear Left Door Control Unit 8X0959795C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A9065402727
Mercedes Sprinter W906 OM651 Engine Wiring Harness Cable Loom A9065402727
€47.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 079903805AF
Audi A5 S5 S5 8T 4.2 FSI Alternator Bracket Mount Holder 079903805AF
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 4G8959792A
AUDI A7 4G8 Door Control Module Front Right O/S Passenger Side 4G8959792A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9192124
BMW Z4 E89 Power Distribution Box Control Unit Module With Fuse 9192124
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 4H0907063BA
Audi A6 C7 Onboard Supply BCM Body Control Module Unit ECU 4H0907063BA
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6938297
Flap System Motor BMW E81 E82 E87 LCI E88 Top Active Cooling Flap Unit 6938297
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9200943
BMW 1 3 Series E81 E87 E90 E91 E92 Ultra Sonic Alarm System Module 9200943
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 3455305
Mini R57 R57N R58 R59 DWA-Alarm System Relay ECU 3455305 65753455305
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 8K2971228G
Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G
Promo price
€70.95
€60.31
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6954298
BMW E81 E87 E90 E91 Adapter Lead Medium Range Loud Speakers 6954298
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8682893
BMW F20 F30 LCI 120i 320i 330i B48 Engine Wiring Cable Loom Harness 8644504
Promo price
€80.95
€48.57
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8510221-16
BMW E90 E91 E92 LCI 325d Diesel N57 204HP ECU Engine Module DDE 8510221 Manual
Promo price
€104.95
€62.97
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8506373-1
BMW X3 E83 LCI 1.8d N47 Engine Control Unit ECU Kit Module DDE 8506373 EWS Key
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A1695453740
Mercedes-Benz A-Class W169 Fuse Box Unit Holder Bracket Frame A1695453740
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A1638201675
Mercedes-Benz M-Class ML W163 Roof Antenna A1638201675
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 7542310-7
Mini Cooper R50 W10 Petrol Engine Control Unit Module ECU DME 7542310 Manual
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 6939287
BMW E60 E61 E63 Air Module ECU Control Unit Centre Vehicle Sensor 6939287
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 8K0959655L
Audi A4 B8 Air Module Control Unit ECU Crash Control 8K0959655L
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 8P0035186S
Audi A3 8P Multimedia Concert Radio CD Player Head Unit 8P0035186S
€42.95
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8617551-5
BMW F20 F21 125i N20 218HP ECU Control Unit Kit DDE 8617551 Key FEM Automatic
Promo price
€474.95
€284.97
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A6079002300-1
Mercedes W176 W246 180 CDI OM607 Engine Control Unit Module ECU A6079002300
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 28
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 .