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
-5%
Part no. 7638194
BMW F20 F21 F22 F30 F31 Engine Starter Motor N20 N26 N55 Petrol 7638194
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A6421540402-1
Mercedes W164 W204 W211 OM642 Diesel Alternator Generator A6421540402
Promo price
€70.95
€60.31
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 9143121-1
BMW E81 E87 E90 E91 E92 E60 E61 Loudspeaker Speaker Logic7 L7 HiFi Audio 9143121
€37.95
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9866979
BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9866979
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 8X0907063AB
Audi A1 8X BCM Body Control Module Power Supply Unit 8X0907063AB
€37.95
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6926459
BMW X1 E81 E82 E84 E87 E88 E90 E91 E92 Climate Control Solar Sensor 6926459
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 9318777
BMW F10 F11 Pedestrian Protection Sensor F-Optic Control Unit 9318777
€132.95
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 9342033
BMW F10 F20 F30 Head Unit Media Navigation Headunit Player 9342033
Promo price
€42.95
€25.77
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 9128183
BMW E90 Light Module ECU 61359128183 9128183 9128223 PL2FRMFA
€23.95
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 9383695
BMW F10 Footwell Light Module Control Unit ECU FRM III TEMIC 9383695
€51.95
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 9227181
BMW E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359227181 9227181
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2046801231
Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046801231
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 2622610
Bluetooth Module BMW F10 F20 F23 F30 Teleservices GPS Telematics Control 2622610
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. A2139006911
Mercedes W213 C238 Telematic Charging Phone Control Module A2139006911
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 8507885
BMW 1 3 Series F20 F30 Diesel N47N Wiring Harness Engine Gearbox Module 8507885
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. A2229004220
Mercedes GLC X253 Communication Module LTE Telephone Bluetooth A2229004220
€189.95
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A4479000900
Mercedes Vito W447 Air Module Control Unit ECU 4479000900
Promo price
€132.95
€113.01
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 6822582
BMW 3 Series F30 Head Unit Basic Media Navigation Headunit 6822582
Promo price
€75.95
€45.57
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7P0907652
Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 8K0959793D
Audi A4 B8 A5 S5 8T Door Module Control Unit Front Left N/S 8K0959793D
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A2059004721
Door Module W205 Rear Right O/S Door Control Unit Module A2059004721
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A0009057908
Mercedes C238 Rear Bumper Blind Spot Radar Sensor Left Right N/O/S A0009057908
Promo price
€151.95
€129.16
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9119491
BMW E90 ECU Body Control Module Unit Junction Box H1 PL2 JBBFE 9119491
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 9228491
BMW 5 Series F10 ECU Body Control Module V2 Junction Box 61359228491 9228491
Promo price
€66.95
€40.17
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9240077
BMW E93 Cabrio Convertible Folding Top Roof ECU Module CTM 9240077
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A1669000618
Mercedes-Benz A B Class W176 W246 Front Right Door O/S Control Unit Module ECU
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A0018204535
Microphone Mercedes W639 W906 Hands-Free Interior Mic Unit A0018204535
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2139002210
Mercedes-Benz W176 W205 W207 W213 Bluetooth Control Unit Module ECU A2139002210
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A0009820412
Mercedes W176 W205 W212 Voltage Converter Power Distributor Plug A0009820412
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A0009055504-TNG1
Mercedes W166 C207 Front Rear PDC Parking Distance Sensor Tenorite Grey - 755
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 9329702
BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7075946
BMW 5 7 Series E60 E61 E65 Front Seat Backrest Adjustment Drive Memory 7075946
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9298958
Rear Electronic Module BMW F20 REM Fuse Box Control Unit V1 9298958
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 6922720
BMW X5 E38 E39 E46 E53 GPS Navigation System Computer Unit 6922720
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7490465
BMW F10 F20 F30 F31 Mini F55 F56 Seat Heating Module Control Unit ECU 7490465
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6980177-3
BMW E81 E87 E90 E91 F10 F11 X5 E70 Relay Unit Green Set TYCO 5 Pins 6980177
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 9119495
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9119495
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 6868194
BMW 3 Series E90 E91 LCI Mini R55 R56 Tyre Pressure RDC Control Unit Module
Promo price
€66.95
€56.91
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 3453590
Mini Cooper R57 R58 Antenna Bumper Mounted FM/DAB Wiring 3453590
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 9383178
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9383178
Promo price
€61.95
€37.17
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 9248361
Radio Player BMW F10 F11 F20 F21 F25 F30 F31 Alpine CD Champ 2 Head Unit 9248361
€123.95
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7560626
BMW X3 Z4 E83 LCI E85 E86 Power Distribution Module Fuse Box 7560626
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. A2129003614
Fuse Box Mercedes W212 Rear Relay Control Unit Electric Module SAM A2129003614
Promo price
€118.95
€71.37
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6923209
BMW X5 E46 E53 Alarm System Inclination Indicator Module Unit 6923209
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9139868
BMW X3 E83 LCI X5 E70 LCI PDC Parking Ultrasonic Sensor Schwarz Black 9139868
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 4F0915519
Volkswagen Polo Touareg Audi A4 A6 A7 A8 Battery Overload Protection 4F0915519
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9251984
BMW F10 F11 F20 F21 F30 Control Unit Module Voltage Transformer VSU180 9233143
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 3455236
Mini Cooper One R56 High SPEG DC/DC Fuse Distribution Box H5 3455236
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2035451303
Mercedes CL203 W203 Fuse Box Cover Engine Bay Relay A2035451303
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2035450803
Mercedes W203 Battery Terminal Fuse Box Electrical Unit A2035450803
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6798872
BMW F10 F11 F30 F31 Wheel Electronics Module RDC 433MHZ Control Unit 6798872
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 1388911-3
BMW E36 E38 E85 Mini R52 R57 5x Change-Over Contact Relay Violet Set 1388911
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A0005455916
Mercedes W204 Automatic Gearbox Transmission Module Unit ECU A0005455916
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9160187
BMW 1 Series E81 Body Control Module ECU L2 PL2 JBBFE II Junction Box 9160187
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6868598
BMW 1 2 3 F20 F21 F22 F30 F31 ECU ICM Control Unit Module 6868598
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7527610-5
Mini Cooper One R50 R52 W10 Engine Control Unit DME Manual 7527610
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 6857300
Air Module BMW F01 F02 LCI F10 F11 F13 ICM Crash Control Unit ECU 6857300
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 8573258-10
Engine Control Unit BMW F20 116d F30 316d N47N 116HP ECU DDE 8573258 Manual
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9387624
BMW F20 F21 F30 Sensor Rain Light Solar Condensation 9387624
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2135406200
Fuse Box Mercedes W213 S213 W238 Rear Electrical Control Unit Module A2135406200
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2229055804
Mercedes CLA C117 W176 W205 Aerial Antenna Amplifier Unit A2229055804
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9285504
Distributor BMW X5 F15 X6 F16 B + Battery Power Distributor 9285504
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 8512499-1
BMW E81 E87 E90 E91 LCI N47 143HP Diesel ECU Kit DDE 8512499 Manual
Promo price
€132.95
€79.77
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. P0148459-IB1
Mini Cooper One 1 R50 Fuel Filler Cover Fill In Flap Indi Blue Metallic 862
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9177979
BMW E81 Body Control Module ECU L2 PL2 JBBFE II Junction Box 9177979
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2034404532
Mercedes CLC-Class CL203 Rear Parking Sensor Wiring Loom Cable PDC A2034404532
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 8K0907063BE
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063K
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2139008013
Bluetooth Module Mercedes W176 W213 Control Unit Hands Free A2139008013
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9165623
BMW X5 X6 Series E70 E71 Airbag Control ECU Unit Module 9165623
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9176078
BMW E60 E61 LCI E63 E64 Body Gateway Module ECU Control Unit 9176078
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 9196933
BMW E70 E71 Seat Control Unit Module ECU 9196933
Promo price
€51.95
€44.16
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2129004414
Door Module Mercedes W204 W212 Rear Right O/S Control Unit Module A2129004414
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 8639582
BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Automatic
€341.95
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9805670-1
Mini R60 Countryman Window Lifter Motor Drive Front Right O/S Door 9804384
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A0015454416
Mercedes CL203 M271 Automatic Gearbox EGS Control Module Unit ECU A0015454416
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6933529
BMW 5 Series E60 E61 Centre Console Switch Centre DSC 6933529
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6842986
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 6842986
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 9314234
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234
Promo price
€113.95
€68.37
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. A6429002900-3
Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
Promo price
€132.95
€79.77
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9131649
Driver Seat Cable BMW E81 E82 E87 E88 Sensor Mat Wiring 9131649
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6949922
BMW 3 5 E46 E61 Touring Amplifier Soft Antenna Suppression Filter 6949922
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2128204185
Mercedes W204 W212 Door Module Control Unit Module Rear Right O/S A2128204185
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 8517874
BMW F20 F21 F30 116d 316d Diesel N47N Engine Control Unit ECU DDE 8517874 Manual
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 8631833
Mini R55 R56 R57 LCI R60 Automatic Gearbox Basic Control Unit EGS 7356237
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 6983075
BMW F01 F07 F10 F30 LCI Fan Motor For Amplifier Control Unit Module Controller
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. A6519007500-11
Mercedes W204 C 200 CDI 651.913 136HP Engine Unit ECU Kit A6519007500 Key Lock
Promo price
€170.95
€102.57
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 1742690-1
BMW E60 E81 E87 E90 E91 X3 E83 Relay Changer Make Contact Salmon Red Set 1742690
€23.95
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. 7638322-1
Mini Cooper R56 LCI N16 1.6 122HP Petrol Engine ECU Kit DME 7638322 + CAS3 + Key
Promo price
€284.95
€242.21
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 9111165-PB
BMW E81 E82 E87 E88 E90 E91 Ultrasonic Sensor PDC Platinbronze A53 9111165
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. A9069001002
Mercedes Sprinter W906 Parking Control Unit Module Sensor PDC A9069001002
€89.95
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 7607973
BMW F20 F21 F30 Wiring Loom Harness Injection Valve Ignition 7607973
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 6901469-1
2X Relay BMW E60 E87 E90 F10 F30 4 Pin Tyco Set Black 6901469
€23.95
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. A2045407135
Earth Ground Cable Mercedes W204 C207 Line Strap Battery Lead A2045407135
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A2129009705
Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
Promo price
€94.95
€80.71
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 8W0959595H
Audi A5 F5 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595H
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A1775404507
Mercedes V177 C118 W247 Fuse Box Relay Control Unit Module A1775404507
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A9079009304
Mercedes Sprinter W907 Radar Sensor Distance Active Brake System A9079009304
Promo price
€56.95
€48.41
Free delivery - Wed, Oct 15
If paid before 14:00
-15%
Part no. A1648702726
Mercedes W164 Tailgate Boot Lid Control Unit Module A1648702726
Promo price
€56.95
€48.41
Free delivery - Wed, Oct 15
If paid before 14:00
Part no. 9280622
FEM Module BMW F20 F21 F22 F30 F32 ECU Control Unit Fuse Box 9280622
€108.95
Free delivery - Wed, Oct 15
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 .