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. A1698209126
Door Module Mercedes W169 W245 Rear Left N/S Control Unit A1698209126
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9257366
BMW 5 7 Series F01 F10 LCI Aerial Antenna Amplifier Diversity 868 MHZ 9257366
Promo price
€42.95
€36.51
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6799887
Crash Module BMW F01 F02 LCI F10 F11 F13 ICM Control Unit ECU 6799887
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0035422819
Battery Relay Mercedes W176 W246 W447 Cut Off Module Control Unit A0035422819
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
Part no. 022971615B
Audi TT 8J 3.2 V6 BUB Ignition Wiring Harness Guide Trim 022971615B
€42.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9226333
BMW E93 ECU Body Control Module H3 Junction Box PL2RR JBBFE IIIR 9226333
Promo price
€80.95
€68.81
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-15%
Part no. A1185402504
Mercedes C118 Door Harness Rear Left N/S Door Wiring Loom A1185402504
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 4E0035729
Audi A6 C6 Bluetooth Interface MMI Multimedia Control Module ECU Unit 4E0035729
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6771182
BMW E90 E91 E92 E93 Longitudinal Dynamic Module Cruise Control 6771182
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9284331
Mini Cooper R55 R56 LCI R60 R61 Roof Light Switch Operating Unit 9284331
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 5A5D3C0
Keyless Entry BMW F40 G20 G21 G30 G31 Comfort Access Antenna 5A5D3C0
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8798189-1
Basic Head Unit BMW F45 X1 F48 Mini F55 F56 Sat Navigation Radio Stereo 8798189
Promo price
€218.95
€186.11
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6989994
BMW E65 E66 E67 Control Unit Front Centre Console Module 6989994
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 7634056
Engine Wiring BMW F20 F21 F30 F31 N20 Cable Loom Harness 7634056
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9389560
Aerial Trap Circuit BMW G30 X3 G01 Antenna Amplifier Module Control Unit 9389560
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8U0971104E
Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104E
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8S0035021B
Audi TT FV Navi SD GPS MMI Multimedia Head Unit Module 8S0035021B
Promo price
€522.95
€444.51
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8586540-5
BMW F30 F32 LCI 330d 430d N57N 258HP Control Unit ECU Kit DDE 8586540 FEM Key
Promo price
€398.95
€239.37
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7801203
BMW X5 E70 E87 F10 F11 F15 F25 F30 Diesel Engine Starter Motor 7801203
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. BK2T14B476BU
Ford Transit MK8 Fuse Box Relay Body Control Comfort Module BCM BK2T14B476BU
€165.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6926472
BMW E65 E66 E67 Phone Transmitter Receiver Module ECU SIEMENS 6926472
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9207846
BMW X5 Series E70 Driver Side Front Right O/S Door Cable Harness Wiring 9207841
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 6938504-1
Positive Battery Lead BMW E90 E91 E92 E93 Battery Wiring Harness Cable 6938504
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A2535402128
Mercedes X253 Starter Motor Wiring Harness Cable A2535402128
€66.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6G9T-14B192-AA
Ford Mondeo Transit Relay 4-Pin Black FoMoCo Unit 6G9T-14B192-AA
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9259466
BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-40%
Part no. 7587548-5
Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS3 + Key Manual
Promo price
€579.95
€347.97
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6970701-1
BMW 3 Series E93 E93N LCI 1 Rear Bumper Antenna Aerial Telephone 6970701
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8510832
BMW E90 E91 LCI N47N 318d 143HP Engine Control Unit ECU DDE 8510832 Automatic
Promo price
€151.95
€91.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8D0951253A
Audi A6 C6 Multi Use Relay Unit Module 4 Pins 373 8D0951253A
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6962723
BMW E60 Light Control Unit Module LME6X MAN.LWR Lear 6962723
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7795779
BMW 5 Series E60 E61 Cable Alternator Starter Base B 520d Diesel M47N2 7795779
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8512499-8
BMW E87 E90 LCI N47 118d 318d 143HP Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
Promo price
€165.95
€99.57
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8367769
BMW X3 Series E83 Battery cable holder mounting parts B Base 8367769
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6958449
BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 61356958449 6958449
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9229878
BMW E91 LCI ECU Body Control Module Junction Box H2 9229878
Promo price
€62.95
€53.51
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9240508
Fuse Map BMW X5 X6 E70 E71 Assignment Grouping Card 9240508
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8602994
BMW 1 X1 X2 Series F39 F40 F48 Mini Cooper One F55 F56 Earth Cable Wire 8602994
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 4F0959795N
Door Module Audi A4 B8 A6 C6 Rear Unit Control ECU Left N/S 4F0959795N
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 0445684-3
HiFi Audio Retrofit BMW E81 E87 E90 E91 E92 Connector Cable Wire
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A2075403332
Convertible Cable Mercedes A207 C207 Roof Rail Wiring Harness A2075403332
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 3420482
BMW X3 E83 Ground Earth Cable Battery Wiring 3420482
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A9425426040
Mercedes Sprinter W906 Fuse Box Relay Carrier Holder Bracket A9425426040
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8506442
BMW E81 E82 E87 LCI E88 123d Petrol N47S 204HP ECU Engine DDE 8506442 Manual
Promo price
€165.95
€141.06
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 7316535
BMW 1 2 3 Series F20 F22 F30 Sliding Sunroof Drive Motor Unit Webasto 7193398
Promo price
€42.95
€36.51
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9664016980
Citroen C4 Starter Motor Diesel Engine HDI Actuator Unit 9664016980
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A2465406607
Positive Cable Mercedes W176 W246 Battery Lead Plus Pole Red A2465406607
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7514342-1
BMW 5 Z4 Series 1 E34 E85 Base B Terminal Point Engine Compartment 7514342
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6943585
BMW E65 E66 E67 Control Electronics Seat Occupancy 6943585
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8511409
BMW F10 F11 N57N Control Unit Module Box Cover Bracket Carrier Mount 8511409
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 7578051
Mini Cooper R56 Automatic Gearbox Basic Control Unit EGS 7574294 7571340
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
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 08
If paid before 14:00
-5%
Part no. 7551559
BMW E60 E61 E63 E64 Ground Cable Alternator Petrol 7551559
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9118262
Antenna Amplifier BMW F10 F22 F30 F32 Module Trap Circuit Control Unit 9118262
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8654466-1
BMW F45 225i 231HP B48 Engine ECU Kit Unit DME 8654466 BDC Key Automatic
Promo price
€664.95
€398.97
Free delivery - Wed, Oct 08
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 08
If paid before 14:00
-5%
Part no. 7L0941824B
Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941824B
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8510829-3
BMW E90 E91 LCI 320d N47N Engine Basic DDE 8510829 Control Unit Manual
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1645451840
Mercedes W164 ECU Control Unit Bracket Holder A1645451840
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 7852129
Alternator BMW F90 M5 F91 M8 S63M Petrol Engine Generator 250A Valeo 7852129
€189.95
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 4H0959107AC
Audi A8 4D Tailgate Lift Boot Lid Control Unit Module Trunk 4H0959107AC
€42.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 2S6T-14A073-AC
Ford Transit Connect Fuse Box Power Distribution Junction Relay 2S6T-14A073-AC
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8594487
BMW F45 Mini F56 Positive Battery Alternator Starter Cable Wiring 8594487
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 3452092
Mini Cooper One R56 Footwell Light Module ECU HIGH Lear PL3 FRM II 3452092
€37.95
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A6401508334-1
Engine Control Unit Mercedes W245 B200 CDI OM640.941 140HP ECU A6401508334
Promo price
€104.95
€62.97
Free delivery - Wed, Oct 08
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 08
If paid before 14:00
-15%
Part no. A2319052600
Mercedes R172 Security Alarm Interior Protection Sensor Module Unit A2319052600
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0045423518
Mercedes ML W164 W204 W211 CLS C219 Acceleration Sensor Module Unit A0045423518
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A6395460035
Mercedes Vito W447 W639 Battery Terminal Protection Cap Cover A6395460035
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6928461
BMW E46 E60 E61 E63 E81 E87 E90 E91 X3 E83 X5 E53 E70 Bluetooth Antenna 6928461
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9255048
BMW 1 Series E81 E87 E87N Battery Wire Cable Negative Earth Lead 9255048 6929705
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9329339
BMW F32 Telematics Telephone Control Unit Module Bluetooth TCB ECE 9329339
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8385164-1
BMW 7 Series 1 E65 E66 Battery B+ Engine Compartment Terminal Point 8385164
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A1665420018
Battery Cable Mercedes W176 Negative Lead Wiring Harness Control A1665420018
€23.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9335298
BMW 1 Series F20 Front Left Door N/S Wiring Loom Harness Cables 9215715
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6C1T14A067E
Ford Transit Mk7 Fuse Box Battery Terminal Unit Module 6C1T-14A067-E
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A1728100011-1
Navigation Processor Mercedes W176 W212 Control Unit Module NTG 4.5 A1728100011
Promo price
€66.95
€56.91
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1725403405
Mercedes R172 OM651 Diesel Alternator Wiring Harness Cable Loom A1725403405
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9326437
BMW F30 F31 Wiring Passenger Loom Front Door Cables Harness 9286241
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9134666
Seat Module BMW E87 E90 E91 E92 Control Unit ECU 9134666
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 5Q0906093
Fuel Pump Control Audi TT FV A3 8V Petrol Engine Unit Module 5Q0906093
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 7317408
BMW F10 F11 LCI F30 F31 Xenon Headlight Ballast Control Unit 7317408
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2135451140
ECU Bracket Mercedes W213 Control Unit Module Holder Mount A2135451140
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8512415-9
Mini One D R60 N47N 90HP Diesel Engine Control Module ECU DDE 8512415 Manual
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 7237647
BMW E90 LCI F01 F10 F11 F20 F21 Control Unit Xenon Light 7237647
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A2129004025
Mercedes W212 Fuse Box Relay Control Unit Module SAM A2129004025
Promo price
€132.95
€79.77
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6931687
BMW X5 E70 X6 E71 Fuse Box Power Distribution Electrical Unit Rear 6931687
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9231179-1
BMW F30 F32 F80 M3 F82 M4 1 Rear Antenna Aerial Amplifier AM/FM DAB
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8482365
BMW G20 Installation Cable Wiring Loom 8482365
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 3448250
BMW X3 E83 Front Door Window Lifter Regulator Motor Right O/S 3448250
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6921982
BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 5Q0907357
Audi A3 8V Headlight Head Light Lamp Range Control Unit Module ECU 5Q0907357
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 .