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
-15%
Part no. A1728201700
Mercedes W176 W246 USB Interface Multimedia Adapter Connector A1728201700
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 6983018-1
BMW E90 Radio Professional CD Audio Player Dash Control Unit 6983018
€56.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9374507
BMW F23 REM Rear Electronic Module Fuse Box Control Unit V2 9374507
Product currently unavailable
-5%
Part no. A0001502780
Mercedes W203 CL203 W204 M272 Petrol Ignition Coil Cable Connector A0001502780
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0045450405
Mercedes W169 W203 W639 W906 Relay 5-Pins Green Control Unit 12V A0045450405
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1648209385
Mercedes ML W164 Door Module Front Left N/S Control Unit Module A1648209385
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8514291
Battery Cable BMW X3 F25 X4 F26 B47 Alternator Starter Base B Cable 8514291
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7450992
BMW F20 F21 F30 F31 Fuel Pump Delivery Control Unit Module 7450992
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9217912
BMW E82 E90 LCI Trunk Shelf Left Right Speaker Tweeter Harman Kardon 9217912
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8570442
Engine Wiring BMW F25 F26 2.0dX B47 Loom Module Harness Cable Automatic 8570442
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A6511500156
Engine Wiring Mercedes W204 OM651 Diesel Harness Loom Cable A6511500156
Promo price
€70.95
€60.31
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1648209485
Mercedes ML W164 Door Module Front Right O/S Control Unit Module A1648209485
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9274023
BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9274023
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8200263345
Renault Relay III Unit Module 4 Pins 12V 8200263345
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9287756
Loudspeaker Centre BMW F25 F15 Central Woofer Audio Speaker 9287756
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9380333
BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 8SK 9380333
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2118701185
Air Module Mercedes W211 W219 Control Unit ECU A2118701185
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6998487
Airbag Module Mini F55 F56 F60 BMW X1 F48 F45 ECU Control Unit Air Bag 6998487
Promo price
€155.95
€132.56
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8510221-13
BMW E90 E91 LCI E92 325d Diesel N57 204HP ECU Engine Kit DDE 8510221 Automatic
€189.95
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 6809049-1
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 6809049
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7795485
BMW X1 E81 E84 E87 E90 E91 Earth Cable Battery Cable 7795485
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 9159811-1
BMW E91 NSW PL2 FRMII Lightning Control Unit Module (LCM) 9159811
€123.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7557027
BMW X5 E70 X6 E71 E72 Battery Earth Cable Wiring Loom 7557027
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9257426
Fuse Box Grouping BMW F10 F11 Fuse Placement Map Card Diagram 9257426
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 9244422
BMW X5 E70 LCI Front Bumper PDC Loom Cables Wiring Set 9244422
€37.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8578504
BMW F30 LCI 335dX N57Z Engine Gearbox Module Wiring Cable Loom Harness 8578504
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9315080
BMW X3 F25 Window Lifter Switch Driver's Side Wiring Harness Loom Cable 9315080
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2469008516
Parking Brake Module Mercedes W176 W246 Electric Control Unit ECU A2469008516
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8518269
BMW E90 E91 LCI N47N 320d 184HP ECU Engine Control Unit DDE 8518269 Manual
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1698209926
Mercedes W169 W245 ECU Air Control Unit Sensor Module A1698209926
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7374942
BMW F20 F21 F30 F31 Fuel Pump Control Unit Module 7374942
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8586536-1
BMW F30 F32 LCI 335dX 435dX N57Z 313HP Control Unit ECU Kit DDE 8586536 FEM Key
Promo price
€379.95
€227.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 6960428
BMW 3 5 6 Series E60 E61 E63 E64 E90 E91 FBAS Analog Video Module Unit 6960428
Promo price
€225.95
€135.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9243667
BMW X3 F25 X4 F26 Rear Door Left Right N/O/S Wiring Loom Cables Harness 9243667
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7556846
Battery Cable BMW E82 E90 E91 E92 N54 Alternator Starter Base B Cable 7556846
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
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 07
If paid before 14:00
-5%
Part no. A9069000401
Mercedes Sprinter W906 Door Module Front Right O/S Control Unit A9069000401
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8592700
Glow Plug Wiring BMW F48 Mini F57 Wiring Harness Engine Module 8592700
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1648205585
Mercedes W164 Air Module Control Unit SRS Sensor ECU Bosch A1648205585
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 07
If paid before 14:00
-40%
Part no. 7939175
Mini F54 F55 F56 F57 F60 Rain Light Solar HUD Sensor 9496244
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A9065450003-1
Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Grey A6395450003
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9393675
BMW X3 F25 Body Control Module ECU Junction Box JBBFE III 3 V8 Lear 9393675
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9315151
BMW X3 F25 Fuse Box Power Distribution Control Unit Box Rear 9315151
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1729007600
Seat Module Mercedes W204 Front Right O/S Memory Control Unit A1729007600
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9326010
Radio Player BMW F20 F21 F30 F31 CD DAB Bluetooth Head Unit Audio Player 9326010
Promo price
€61.95
€52.66
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1472984-3
Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1472984-2
Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1472984-1
Mini R50 R52 R53 R55 R56 R57 R58 R59 R60 5-Pin Black Relay Wiper Set 1472984
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7843338
Engine Wiring BMW F10 M5 F13 M6 Valvetronic Servomotor Cable Loom 7843338
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6980177-2
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1645453716
Mercedes ML W164 Parking Module PDC Distance Control Unit Sensor A1645453716
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1765450000
Mercedes-Benz A-Class W176 Bluetooth Unit Module Bracket Holder A1765450000
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2465400308
Alternator Cable Mercedes W176 W246 OM651 Battery Prefuse Box A2465400308
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 07
If paid before 14:00
-5%
Part no. 8K0971688S
Audi A4 B8 Door Harness Loom Cable Wiring Rear 8K0971688S
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 9281829
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9281829
€42.95
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 9388179
Mini Cooper One F54 F55 F56 F60 ECU Body Domain Controller BDC Module 9388179
€142.95
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2465400340-1
Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8510591-3
BMW E81 E87 E90 LCI 120d 320d N47 ECU Kit DDE 8510591 CAS3 + Key Automatic
Promo price
€237.95
€142.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6928975
Door Wiring Loom BMW E63 E64 Harness Passengers Side 6928975
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7951288
BMW F20 F30 F31 Mini F55 F56 F60 Control Unit Air Conditioning Module 7951288
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. F20-On-Board-Screen
On-Board Screen BMW F20 F21 F30 F31 Information Display Touch Monitor 8,8"
Promo price
€284.95
€242.21
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2128204585
Mercedes-Benz A B W176 W246 Glove Box Aerial Antenna Booster Amplifier
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A1644400937
Mercedes ML W164 Rear Bumper PDC Wiring Parking Sensor Loom Harness A1644400937
€56.95
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A1645453047
Mercedes ML W164 Trunk Tailgate Foam Control Unit Module Bracket A1645453047
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8573260-8
BMW F20 F21 116d ed Diesel N47N 116HP ECU Kit DDE 8573260 + Key + FEM Manual
Promo price
€417.95
€250.77
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2661538479-1
Mercedes W169 A150 Petrol M266.920 95HP Engine ECU Kit A2661538479 Automatic
Promo price
€180.95
€108.57
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8576341-4
BMW F20 F21 F30 F31 118d 318d 143HP N47N ECU Kit DDE 8576341 + Key + FEM
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7191718
BMW Z4 Series E89 Roadster Cabrio Horn High Tone 7191718
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8781328
BMW X3 F25 Central Gateway Module Control Unit Lear ZGW-02 4SK 8781328
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
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 07
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 07
If paid before 14:00
-5%
Part no. 6929701
BMW 7 Series E65 E66 Alarm System Ultra Sonic Module 65756929701 6929701
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 6940763
BMW 7 Series E65 E66 E67 Ultra Sonic-Module 6940763
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959795C
Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A4479052505
Mercedes Vito W447 Rain Light Sensor Windscreen Control Unit A4479052505
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7187221
BMW F01 F02 F03 LCI Rear Third Stoplamp Stop Lamp Brake Light 7187221
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959792J
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0955557C
Audi A4 B8 Crash Impact Sensor Unit Air Module 8K0955557C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8K0971687S
Audi A4 B8 Door Wiring Harness Loom Rear Left N/S Cabling 8K0971687S
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959793J
Audi A4 B8 Door Module Front Right O/S Control Unit Module ECU 8K0959793J
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03L911021E
Audi A4 B8 Starter Motor Engine Motor Actuator Diesel Bosch 03L911021E
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2048709426
Mercedes W204 Air Module Control Unit SRS Sensor ECU A2048709426
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2049006301
Mercedes W204 Rear SAM Module Fuse Box Control Unit A2049006301
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2044407441
Earth Ground Cable Mercedes W204 W207 W212 W218 Battery Wiring Loom A2044407441
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2049060205-1
Mercedes C204 Rear SAM Module Fuse Box Relay Control Unit A2049060205
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2129003414
Fuse Box Mercedes C204 W204 Front Relay Control Unit Module SAM A2129003414
Promo price
€132.95
€113.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A0025451201
Mercedes W169 W245 W906 Fuse Box Carrier A0025451201
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 6821139
BMW F10 LCI F20 F21 F30 F31 DAB Bluetooth Head Unit Basic 6821139
€113.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2038219551-2
Mercedes CL203 Rear Roof Alarm Motion Sensor Control Unit Module A2038219551
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2049007508
Mercedes W204 Display Screen Monitor Radio Sat Nav Navigation Unit A2049007508
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2038703389
Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine A2038703389
Promo price
€75.95
€64.56
Free delivery - Tue, Oct 07
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 .