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. A1685405008
Mercedes A-Class W168 Door Cable Harness Wiring Loom Front Right A1685405008
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 4F0959794E
Audi A6 C6 Rear Door Right O/S Module Unit Control ECU 4F0959794E
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 7290727
Battery Cover BMW X1 F48 X2 F39 Mini Countryman F60 Upper Panel 7290727
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 4H0951253C-1
Volkswagen Polo 6R Tiguan 1T Multi Use Control Module Relay SET 4H0951253C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9381114
BMW F20 F21 F30 F31 F32 Mini F56 F57 Seat Control Unit Module Heating 9381114
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9384214
BMW F10 ECU Body Control Module V2 PL6 JBBFE III Junction Box 9384214
€66.95
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 8J0971349CD
Audi TT 8J Alternator Main Cable Wiring Harness Loom 8J0971349CD
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7L0959655
Volkswagen Touareg 7L Air Module Control Unit Crash Impact Sensor 7L0959655
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 6982397
BMW E81 E87 E90 E91 E92 Parking Control Module Unit PDC 6982397
Promo price
€137.95
€117.26
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 66209142217
BMW 5 6 Series E60 E61 E63 LCI Front Rear PDC Ultrasonic Sensor Schwarz 2 Black
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 1742690
BMW E60 E63 E87 E90 Relay Changer Make Contact Salmon Red 1742690
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A0065422618
ESP Sensor Mercedes W166 Electronic Yaw Rate Sensor Module A0065422618
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9277202
Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Set 9277202
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A6461502734-1
Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic
Promo price
€165.95
€99.57
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6997612
BMW F20 F21 Air Conditioning A/C Climate Control Unit Module ECU 6997612
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 1K0971349BP
Volkswagen Golf Mk6 Alternator Main Cable Wiring Harness Loom 1K0971349BP
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2218202910
Mercedes W221 Dashboard Instrument Cluster Panel Switch A2218202910
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9229880
BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9229880
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 5N0971228
VW Volkswagen Tiguan 5N Positive Battery Terminal Cable Lead Wiring 5N0971228
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9253482-2
BMW E87 Junction Box ECU Body Control Module Unit H2 PL2RR JBBFE IIIR 9253482
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9314023
MINI Cooper R56 LCI Aerial Antenna Amplifier Diversity Module 9314023
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 1K0907530K
Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 4G8959793G
Audi RS6 C7 Front Door Module Driver's Side Control Unit ECU 4G8959793G
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
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 28
If paid before 14:00
Part no. 8Y0963554A
Audi S3 8Y Rear Seat Couch Occupancy Recognition Sensor Unit 8Y0963554A
€32.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 4H0907357A
Audi A7 4G8 Headlight Head Light Lamp Range Control Unit Module ECU 4H0907357A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A1775405801
Mercedes W177 W247 Door Wiring Rear Left Right Cable Harness A1775405801
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 5A04A04
Mini F54 F55 F56 F60 Telematics Module Bluetooth Control Unit ECU 5A04A04
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8514120
Preheating Control BMW F20 F21 F30 F31 LCI B47 Glow Plug Unit Diesel 8514120
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 2757044
Mini R55 R56 R57 R58 Right O/S Electric Window Lifter Motor 2757044
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 7627023
BMW F20 F21 F30 Petrol N13 Automatic Gearbox Engine Sensor Module 1 Wiring
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6953467
BMW 1 3 Series E88 E93 Convertible Tel Phone Antenna Aerial 6953467
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A1669003309
Mercedes W176 W204 W246 Headlight Headlamp Range Control Unit Module A1669003309
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8574095
BMW F20 F21 F30 F31 116d 316d 118d 318d Diesel N47N Engine ECU 8574095 Manual
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9207075
BMW X3 X5 Series E83 E53 Telematics Control Unit Module 9207075
Promo price
€80.95
€48.57
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9149674
BMW 3 5 Series E60 E90 Portable DVD System Alarm Ultra Sonic Module Unit 6980090
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7586426
BMW E89 F10 F25 F26 Battery Clamp Bracket Holder 7586426
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
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 28
If paid before 14:00
-15%
Part no. 6820526
Head Unit BMW F20 F21 Radio Media GPS Sat Navigation Unit 6820526
Promo price
€142.95
€121.51
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 5G0919605
VW Volkswagen Golf Mk7 Radio Control Head Unit CD Player 5G0919605
€56.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9142218
BMW X3 E83 LCI PDC Parking Ultrasonic Sensor Silver Grey 9142218 9139866
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 5A07600
BMW F40 Heater Air Conditioning System Control Unit Module 5A075F7
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 3456365
Roof Security Alarm Mini R55 R56 One Ultra Sonic Module 3456365
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 3455304
Mini R57 Cabrio DWA Door Alarm Theft Deterrent System Unit 3455304
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9242204
Wiring BMW F12 F13 F06 Cable Set For Electric Parking Brake Handbrake 9242204
Promo price
€80.95
€48.57
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A2139006016
Mercedes W213 C238 Air Suspension Level Control Unit Module Airmatic A2139006016
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6968649
BMW E93 Convertible Aerial Antenna Amplifier FM/AM Left N/S 6968649
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2129002813
Mercedes W212 PDC Parking Distance Control Unit Module Sensor A2129002813
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6949450
BMW 5 Series E60 E61 Centre Console DSC PDC Switch Center Cluster 6949450
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2219009903
Mercedes-Benz S-Class W221 Rear Door N/O/S Control Unit Module A2219009903
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2215407710
Mercedes W221 Battery Negative Terminal Cable Wiring Wire A2215407710
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. A2215408045
TPM Module Mercedes W221 S500 C216 Tire Pressure System Module RDK A2215408045
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 03E971612AC
VW Volkswagen Polo 6R Engine Wiring Harness Cable Loom 1.2 CGPA Petrol 03F971612
€94.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A2661540902
Alternator Generator Mercedes W169 W245 Engine 115A 14V A2661540902
€75.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 7N0907530AF
VW Tiguan 5N Central Gateway Control Unit Module Relay ECU 1K0907530S
€32.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A1698203185
Mercedes-Benz A B Class W169 W245 Door Control Module Left Rear N/S A1698203185
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 03C906027DA-1
VW Volkswagen Touran 1T 1.4 TSI CAVC Engine ECU Kit Ignition 03C906027DA + Keys
€237.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 06H911021
Audi A4 B8 2.0 TFSI Petrol Engine Starter Motor 06H911021
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9289590
BMW X5 X6 E70 E71 Antenna Amplifier Module Trap Circuit 9289590
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A6397600340
Mercedes Vito W639 Door Handle Cable Catch Bowden Cable Rear A6397600340
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 8579478
BMW F20 F30 F32 120dX 320dX 420dX Diesel N47N 184HP ECU Unit DDE 8579478 Manual
€94.95
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9187536
BMW 3 Series E90N E90 LCI ECU Body Control Module H1 61359187536 9187536
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6956166
BMW Mini Cooper One R50 R53 Loudspeaker Rear 65136956166 6956166
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 8518568
BMW F20 F30 F32 120d 320d 420d Diesel N47N 184HP Engine Control ECU DDE 8518568
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 443937105A
VW Volkswagen Audi Skoda Seat Little Fuse Amp 30A 12V 443937105A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 8494948
BMW F40 F44 F48 Mini F54 Rear Tailgate Smart Opener Top Wire Sensor 8494948
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A1776203400
Mercedes W177 W247 Battery Bracket Mount Holder Support A1776265300
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. A0025422319-1
Mercedes Universal TYCO Relay Module 12V V23134-B52-X309 A0025422319
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 4E0035654A
Audi A6 C6 MMI Multimedia Navigation Control Head Unit 4E0035654A
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 7N0959793J
VW Volkswagen Sharan 7N Driver's Side Door ECU Module Control Unit 7N0959793F
€42.95
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9389069
BMW F20 F21 F30 F31 F32 X5 F15 X6 F16 Power Distribution Fuse Box Front 9389069
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 4L0959794B
Audi Q7 4L Door Control Module Electrical Unit ECU Rear Right O/S 4L0959794B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 3C0937125A
Volkswagen Tiguan 5N Engine Bay Fuse Relay Box Terminal 3C0937125A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9866978
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9866978
€42.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7799470
Wiring Bracket BMW E60 E61 X3 E83 Diesel Engine Harness Cable Loom Mount 7799470
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9350003-1
Safety Control Unit BMW F01 LCI F07 F10 F11 F25 Air Module Bag ECU 9350003
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8F0035399
Audi A5 8F Door Speaker Tweeter Front Left N/S 8F0035399
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9188853
BMW X5 E70 X6 E71 Battery Earth Cable Ground - Pole Lead L= 490MM 9188853
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A2125400035
Earth Ground Cable Mercedes W204 W207 W212 Battery Starter Wiring A2125400035
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8381963
BMW E39 Petrol M52 523i Body Control Module 8381963
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 7810860
BMW E90 E91 E92 LCI N47N Engine Alternator Starter Cable B 7810860
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9289256
BMW X3 F25 CIC Sat Nav Professional Infotainment Radio Player Head Unit 9289256
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6977398
BMW 5 6 Series E60 E61 E63 R55 R56 Sensor B-pillar Airbag 65776977398 6977398
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 6906618
BMW E60 E61 E63 E64 M5 M6 Power Distribution Fuse Box Rear 6906618
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9345322
BMW F10 LCI ECU Body Control Module V2 Junction Box PL6 JBBFE III 9345322
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 8C1T18K931AD
Ford Transit Mk7 V Radio CD Multimedia Player Head Unit ECU 8C1T-18K931-AD
€332.95
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. A2139008530
Mercedes W213 W447 Transmission Gearbox Control Unit Module ECU A2139008530
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 8572129
BMW 2 3 Series F22 F30 Diesel N47N Wiring Loom Harness Engine Module 8507896
Promo price
€42.95
€36.51
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9253477
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9253477
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. A1698208626
Mercedes-Benz A B W169 W245 Door Control Module Right Rear O/S A1698208626
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 8506444-3
BMW E90 E91 LCI E92 330d Diesel N57 245HP ECU Engine Kit DDE 8506444 CAS3 + Key
Promo price
€256.95
€154.17
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 9192665
BMW X3 F25 Positive Battery Clamp Point Cover Wiring Loom 9192665
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 8573116
BMW 5 Series F10 F11 LCI B47 Cable Alternator Starter 8573116
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-15%
Part no. 9230046
BMW 1 2 SERIES F20 F20N F21 F22 UNDER CAR POSITIVE BATTERY LEAD CABLE 9230046
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 9257009
BMW F01 F10 CIC Professional Unit Sat Nav Infotainment DAB Radio Player 9257009
€284.95
Free delivery - Mon, Oct 27
If paid before 14:00
Part no. A2469052403
Mercedes W156 W176 Battery Cable Negative Lead Terminal Harness A2469052403
€32.95
Free delivery - Tue, Oct 28
If paid before 14:00
Part no. 1K0971349AQ
Volkswagen VW Golf Mk6 Alternator Cable Wiring Harness Loom 1K0971349AQ
€23.95
Free delivery - Tue, Oct 28
If paid before 14:00
-5%
Part no. 50325-MAL-600
Honda CBR F3 Battery Box Tray Covering Housing Trim Holder Bracket 50325-MAL-600
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 28
If paid before 14:00
-40%
Part no. 9257098
BMW F10 F11 F20 F21 F22 F30 F31 Front Seat Control Module ECU 9257098
Promo price
€56.95
€34.17
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 .