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. 03L903023
Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2124405833
Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2124405833
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6933267
BMW 7 Series E65 E66 E67 Control Unit Door Front Passenger Side 6933267
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A0009056001
Battery Cable Mercedes W213 S213 Negative Lead Wiring Harness A0009056001
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F9035225AA
Audi A6 C6 Antenna Amplifier Control Unit Module 4F9035225AA
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8512047-4
BMW E90 E91 LCI N47N 320d 184HP Engine Control Unit ECU DDE 8512047 Automatic
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0035225N
Audi A8L 4H Antenna Aerial Amplifier 4H0035225N
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9393667
BMW F10 LCI Body Control Module ECU Unit JBBFEIII V2 PL6 9393667
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9186215-1
BMW E90 M-Audio Controller System Control Unit Module Navigation 9186215
Promo price
€123.95
€105.36
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8379766
BMW E65 E90 E91 E92 E93 Auto Boot Release Switch Tailgate 8379766
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6933270
BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 6933270
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A1765400103
Battery Cable Mercedes C117 W176 Starter Alternator Wiring Harness A1765400103
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9341546
BMW F40 G20 G30 Accelerating Sensor 9341546
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8720310
Telematics Module Mini F54 F55 F56 F60 Bluetooth Control Unit ECU 8720310
Promo price
€61.95
€37.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. Mini Lodgesons
MINI Cooper R50 Lodgesons Steering Wireless Control Unit Module System
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1775402111
Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775402111
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6929556
BMW E65 E66 Driver's Seat Air Module Sensor Control Unit Module 6929556
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7790996
Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1768200704
Sunroof Wiring Mercedes C117 W176 Panoramic Motor Cable Harness A1768200704
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0971250P
Audi S3 8V Battery Wire Cable Negative Earth Lead 95Q0971250P
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6981142
Window Lifter Motor BMW E60 E61 Drive Actuator Front Right O/S 6981142
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03E971612AE
Volkswagen Polo 6R Mk5 Engine Wiring Loom Harness Cable 03E971612AE
€123.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2535407830
Mercedes C253 AMG Rear Bumper PDC Wiring Parking Sensor Loom Harness A2535407830
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1718701410
Mercedes SLK R171 Alarm Anti Theft System Control Module Unit Roof A1718701410
Promo price
€94.95
€80.71
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9218261
Mini Clubman R55 Clubdoor Cable Wiring Loom Harness Set 9154133
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7222633
BMW E90 E91 LCI Flat Cable Wiring Wire CAS Start Stop ECU Loom 7222633
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6951855
BMW 6 E64 E64N LCI Convertible Suppression Filter Aerial Module Antenna 6951855
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5WA915343B
Battery Bracket VW Golf 8 CD1 Audi A3 8Y Battery Clamp Holder 5WA915343B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 6989080-OLI
BMW E65 E66 E67 PDC Rear Parking Sensor Ultrasonic Olivin Metallic
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2055400555
Mercedes W205 Door Electrical Wiring Harness Front Left N/S A2055400555
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 6820386
Mini F54 F55 F56 Operating Unit Audio Radio Control Switch Panel 6820386
Promo price
€617.95
€370.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8P0035186AB
Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186AB
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 6950525-2
4 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
€28.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8W1959595
Audi Q5 FY Rear Door Control Module Unit Left Right N/O/S 8W1959595
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6872066
Mini F54 F60 Trailer Towing Control Module Cover Bracket Mounting 6872066
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2465400340
Mercedes W176 Fuse Relay Box Unit A2465400340 A2469067200
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9316576
BMW 3 Series F30 F31 Battery Cable Wire Lead Positive Underfloor 9316576
Promo price
€94.95
€56.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9328591
BMW X6 F16 Boot Trunk Lid Tailgate Wiring Loom Harness Cable 9328591
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2048702126
Mercedes W204 Door Module Control Unit Module Front Right O/S A2048702126
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8373700-1
BMW E60 E63 E87 E90 E91 2X Relay Make Contact White Green Set 8373700
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9128569-1
BMW 1 Series E81 E82 E87 LCI E88 Wiring Harness Air Valve Air Flap 9128564
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6958525-1
BMW 5 X5 X6 Series 1 E60 E61 E70 F07 F10 F11 Seat Adjustment Switch Left N/S
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2218211251
Mercedes W221 Dashboard Instrument Cluster Panel Button Switch A2218211251
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. CC1T10300BB
Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A6429002900-4
Mercedes W204 C350 CDI OM642.830 Engine Module ECU Kit A6429002900 Key Lock
Promo price
€503.95
€302.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4G0906093F
Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0035225
Audi A8L 4H Aerial Antenna Amplifier AMP Booster Module 4H0035225
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A6395406809
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406809
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 9805654
Mini Cooper R60 R61 Trailer Towing Control Module Cover Bracket 9805654
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6929555
BMW 7 Series E65 E66 E67 Sensor Front Left Door N/S 6929555
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8506566-5
BMW E90 E91 LCI 320d ed N47N 163HP Engine ECU Kit DDE 8506566 CAS3 + Key Manual
€142.95
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2479008615
Mercedes GLC X253 Camera Lane Assist Control ECU Module Unit A2479008615
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7648785
BMW i3 i01 Battery Cell Module Supervision Circuit Control Unit 7648785
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 9294309
Dashboard Monitor BMW X3 F25 X4 F26 Onboard Central Display Screen 6,5" 9294309
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8U0907468BA
Audi Q3 8U Gateway Control Module Unit ECU 8U0907468AQ
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8589158
Battery Cable BMW G01 G02 B47B B47D Alternator Base B+ Lead 8589158
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8408783
BMW X5 E53 Flap Radio Partition Mounting Part Cover Dashboard 8408783
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7519051
BMW 7 Series E65 E66 E67 Electric valve 735i 745i 735Li 745Li 745LiS
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A4475402105
Mercedes Vito W447 Battery Cable Starter Alternator Wiring Harness A4475402105
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2429007001
Mercedes W176 W204 W212 Telematics Communication Control Unit Module A2429007001
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6929554
BMW E65 E66 Door Air Module Sensor Control Unit Front Right O/S 6929554
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2118201526
Mercedes S211 Rear Door Control Module Left N/S A2118201526
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2129009705-1
Mercedes W204 W212 Fuse Box Relay Control Unit Electric SAM Module A2129009705
€47.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1636801080
Mercedes ML W163 Cover Footwell Fuse Box Trim Right A1636801080
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A6261500075
Mercedes W205 Alternator Protective Cover Metal Sheet A6261500075
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A1695458140
Mercedes W169 W245 Relay Control Unit Bracket Mount Holder Cover A1695458140
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. A2189006806
Mercedes W207 Harman Control Unit Module Amplifier Premium Sound A2189006806
Promo price
€631.95
€379.17
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03L906018LA-1
Audi A6 C7 2.0 TDI CGLC 177HP Engine Unit ECU Kit 03L906018LA 2 Keys Ignition
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9134631
Seat Module BMW E65 E66 Front Seat Control Unit ECU 9134631
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8518569
BMW F20 F21 F30 F31 N47N 116d 316d ECU Control Unit Module DDE 8518569 Manual
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 6950525-1
2 x BMW E63 E64 E93 Alarm System Module Sensor DWA Control Unit Set 6950525
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6951368
BMW X5 E70 Amplifier Holder Audio Catch Bracket Trim Panel 6951368
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A6395406509
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406509
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6938966
BMW 5 Series e60 Suppression Filter Radio Areal Amp Supressor 6938966
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A9079053907
Mercedes Sprinter W907 W910 Battery Sensor Cable Negative Terminal A9079053907
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A2049003509
Mercedes W204 S204 Radio Head Unit Sat Nav CD Player 2049003509
€51.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. A1649100075-1
Mercedes ML W164 Lumbar Module Front Seat Lumbar Control Unit A1649100075
€56.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A2139007105
Air Module Mercedes W213 S213 W238 SRS Control Unit ECU A2139007105
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8509910
BMW X3 F25 X4 F26 Engine Electronics Control Unit Box Cover Trim 8509910
Promo price
€26.95
€25.60
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 6919759
BMW E65 E66 E67 Control Unit Front Centre Console Module 6919759
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8583653-1
Engine Wiring Loom BMW F10 F30 F31 LCI N57N Wiring Harness Glow Module 8583653
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8573260-10
BMW F20 F21 116d Diesel N47N 116HP ECU Kit DDE 8573260 + Keys + FEM Manual
€332.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8579479-4
BMW F20 F21 F30 F31 118d 318d N47N Engine Control Unit ECU DDE 8579479 Manual
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1439674
BMW X5 E53 Base B Positive Battery Terminal Cable Cover Compartment
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 05E907309
Volkswagen Golf Sportsvan 1.5 TSI DADA 150HP Engine ECU Key + Lock 05E907309 DSG
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8652746
Mini Cooper S R60 ALL4 N18 1.6 184HP ECU Engine Control Unit DME 8652746 Manual
Promo price
€446.95
€379.91
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 5N0959655AA
Volkswagen Tiguan 5N Air Module Crash Control Module Unit ECU 5N0959655A
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A0005459812
Mercedes Vito W447 W213 OM654 Power Distribution Relay Unit Module A0005459812
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9425925
BMW F30 LCI G20 G30 Hybrid Fuel Tank Control Unit Module Unit 7452591
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8512499-4
BMW E87 E90 LCI N47 118d 318d Diesel ECU Kit DDE 8512499 CAS3 + Keys Automatic
Promo price
€256.95
€154.17
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7928682
Radio Receiver BMW F40 F44 G20 G26 Radio Remote Control Unit 434 MHZ 7928682
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 8518569-5
BMW F20 F21 F30 F31 N47N 118d 318d 143HP Engine Control ECU DDE 8518569 Manual
€80.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 9118263
BMW F01 F02 F03 F10 Antenna Amplifier Module Trap Circuit 9118263
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. A2044401001
Parktronic Module Mercedes W204 PDC Parking Sensors Control Unit A2044401001
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8485065
BMW G11 G12 G14 G15 G16 G30 G31 G32 G38 Positive Battery Cable Wire 8485065
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 7H0919275C-PRB
Skoda Octavia II PDC Parking Sensor Control Unit Module Prince Blue F5X
€23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0907247A
Audi Q7 4L Keyless Entry Amplifier Control Box Module Aerial Antenna 4F0907247A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8X0971687C
Audi A1 8X Rear Door Harness Left N/S Wiring Loom Cable 8X0971687C
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. A1648208289
Mercedes ML W164 Radio CD Player Audio Stereo Head Unit A1648208289
Promo price
€85.95
€73.06
Free delivery - Tue, Oct 14
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 .