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. A0009828223-1
Mercedes W213 Power Relay 4 Pin 12V Hella A0009828223 SET x2
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9284331-3
Roof Light Mini R55 R56 R60 R61 Operating Control Unit Switch 3455632
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. XS7U-11000-C4A
Ford Focus Mondeo Escort 1.8 Petrol Engine Motor Starter XS7U11000C4A
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. A2749000700
Mercedes W204 C180 BlueEFFICIENCY M274.910 156HP Engine Unit ECU A2749000700
Promo price
€284.95
€170.97
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A9065420044
Mercedes W906 Bracket Mount Fuse Distribution Box A9065420044
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A2118703226
Mercedes W245 Bluetooth Control Unit Module Hands Free A2118703226
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 7848467
Engine Wiring BMW F80 M3 F82 F83 M4 S55 Loom Module Harness Cable 7848467
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 6R0971349AM
Volkswagen Polo Mk5 V 6R Battery Cable Alternator Starter 6R0971349AM
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9361589
BMW 2 F45 Active Tourer Door Wiring Loom Harness Cable Driver's Side 9361600
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9145439
BMW E46 X3 E83 Diesel Auxiliary Heating Electric Flow Heater 9145439
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 8489325
BMW i3 I01 94Ah Rex Hybrid Basic Control Unit Module ECU 8489325
Promo price
€51.95
€31.17
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 7549393
Negative Cable BMW E81 X1 E84 E87 E90 E91 E92 E93 Ground Earth Battery 7549393
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
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Part no. 6956672
BMW E63 E63N LCI Centre Console Switch Centre DTC PDC 6956672
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
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Part no. 6932644
BMW 3 5 Series E60 E71 E90 E92 Suppression Filter Aerial Module Antenna 6932644
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
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Part no. 9216468
BMW F10 F11 F20 F30 F31 Front Seat Heating Control Module ECU 9216468
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 7951069
KaFAS Camera BMW F45 Front Camera Control Unit Module 9384688
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A0019820823
Mercedes Sprinter W907 4-Pin Relay V23074-H1605-X123 A0019820823
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 8P3971085
Audi A3 8P Rear Bumper PDC Wiring Parking Sensor Loom Harness 8P3971085
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 8Y0035465A
Audi Q2 GA Harman Speaker Amplifier Booster Sound System 8Y0035465A
Promo price
€146.95
€124.91
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 1Y0951177
VW Volkswagen New Beetle Alarm Motion Detector Sensor Module Unit 1Y0951177
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9239985
BMW F10 F11 Control Unit ECU Module Airbag Safety Unit 9239985
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-10%
Part no. A0009829608
Mercedes W204 W212 W222 Auxiliary Additional Generator Battery A0009829608
Promo price
€165.95
€149.36
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9329702
BMW F20 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9329702
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 6832062
BMW F10 F13 X3 F25 Wireless Charger Centre Console Phone Charging Module 6832062
Promo price
€75.95
€45.57
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A2139002210
Mercedes-Benz W176 W205 W207 W213 Bluetooth Control Unit Module ECU A2139002210
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9365819
BMW X5 F15 Wiring Rear Right O/S Door Harness Loom 9365819
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. rhd-A1185407902
Mercedes C118 Front Door Left Right N/O/S Electrical Wiring Harness A1185407902
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 6820931
Telematics Module BMW X1 F48 F20 F30 Bluetooth GPS Control Unit ECU 6820931
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A2465407832
Battery Cable Mercedes W176 W246 Positive Wiring Starter Harness A2465407832
Promo price
€170.95
€145.31
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. A2059007134
Mercedes C205 Sam Control Module Body Comfort ECU A2059007134
Product currently unavailable
-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 - Thu, Nov 06
If paid before 14:00
-15%
Part no. A2661503033
Mercedes W169 W245 M266 Petrol Engine Wiring Harness Loom A2661503033
Promo price
€47.95
€40.76
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 6948182
BMW E60 E61 LCI Alarm System Unit Ultra Sonic Module
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 8379567
BMW X5 Series E53 Loudspeaker Stereo Left Front Door N/S 8379567
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. A6541500800
Mercedes W177 W213 Engine Wiring Harness Loom E220d Diesel A6541500800
€37.95
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 8386708
BMW X5 Series E53 Xenon Headlight Ballast Control Unit Module Hella 8386708
€32.95
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9229294
BMW F20 F21 F22 F30 F31 F80 M3 USB Socket Plug Port Control Unit 9229294
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. A2229009910
Mercedes W205 W213 C238 Seat Heating Heater Module Control Unit ECU A2229009910
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9132254
BMW Z4 E85 E86 CID Control Unit CD Player Radio Audio System 9132254
Promo price
€199.95
€169.96
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00
-15%
Part no. 8590045
BMW G20 G21 G01 G02 B47B B47D Engine Injector Module Wiring Harness 8590045
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A1648202715
Electrical Wiring Cable Mercedes W164 W251 Radio Media Interface A1648202715
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9366920
Mini F55 F56 PDC Parking Distance Sensor Module Control Unit ECU 9366920
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 3C0919275S-CGR
Audi TT 8J PDC Parking Distance Sensor Control Condor Grey - Y7E 3C0919275S
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A2465452840
Mercedes-Benz A B W176 W246 Control Module Housing Bracket Mount A2465452840
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A2125403005
Mercedes W212 M271 Wiring Battery Alternator Starter Harness Cable A2125403005
Promo price
€113.95
€96.86
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A2134400200
Mercedes GLC 300e X253 Electric Drive Ground Earth Line Wire A2134400200
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 3456625
Mini R56 MMI Multimedia Switch Button Panel Radio Reader Boost CD Player 3456625
Promo price
€332.95
€199.77
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 03L906018JR-1
Audi A4 B8 2.0 TDI CJCB Engine Control Unit Module ECU Kit 03L906018JR Manual
Promo price
€284.95
€170.97
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 8624382
BMW 1 3 Series F20 F30 F31 LCI Line Cable Power Distribution Module 8624382
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 2754241
Mini Cooper R55 R56 R57 R60 R61 Engine Computer Mount Support Bracket Holder
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A0041518501-1
Mercedes W169 W245 Engine Starter Motor A0041518501
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 9166542
BMW E92 HDD Navigation Reader System Module Unit ZB CE3 Navi JAPAN 9166542
Promo price
€47.95
€28.77
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9491419
BMW F45 F48 F15 F31 F36 Mini F60 Trunk Lid Automatic Lift Control Module 9491419
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9141446
BMW E93 Cabrio Convertible Hydraulic Pump Power Supply Cable 9141446
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. A1679001520
Mercedes C118 W167 W177 W247 Ignition Control Module Unit ECU A1679001520
€132.95
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 8506281-5
BMW E87 E90 LCI 116d 316d Diesel N47 ECU KIT Engine DDE 8506281 CAS3 Key Manual
Promo price
€94.95
€56.97
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 8V7035225B
Audi A3 8V Antenna Amplifier Rear Right O/S 8V7035225B
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A0131541702
Alternator Mercedes W638 OM611 Engine Alternator Generator A0131541702
Promo price
€85.95
€73.06
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A9075407160
Mercedes W907 W910 Battery Electrical Wiring Harness Ground Line A9075407160
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 8S0963553D
Volkswagen Skoda Seat Audi Seat Pressure Sensor Front Passenger Side 8S0963553D
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9153418
BMW F10 F11 B Plus Distributor Front Battery Cable 9153418
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 4H0971104J
Audi A8L 4H Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104J
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 9191568
BMW X5 E70 CCC Navigation System CD Player Sat Nav Head Unit 9191568
€332.95
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 8614302-5
BMW F20 F30 116i 316i N13 136HP Engine ECU KIT DME 8614302 + FEM + 2 Keys
Promo price
€617.95
€370.77
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A0025428019
Relay Mercedes W176 W246 4-Pin Black Hella 12V A0025428019
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A2049012704
Mercedes W204 ECU Control Unit Crash Impact Sensor Air Module A2049012704
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 3WA959595A
Audi A3 RS3 8V Door Control Unit ECU Module Front Driver's Side 3WA959595A
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A1695450001
Mercedes-Benz A B Class W169 W245 Fuse Box Relay Module Unit A1695450001
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 420919275-PHB1
Audi A5 8T Parking Distance PDC Rear Ultra Sonic Sensor Phantom Black - Z9Y
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 079903805J
Audi A4 B6 B7 4.2 V8 FSI Alternator Bracket Mount Holder 079903805J
Promo price
€51.95
€31.17
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 8736682
BMW i3 I01 Body Domain Comfort Control Unit BDC Module ECU 8736682
Promo price
€313.95
€188.37
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A2035409213
Mercedes W203 Door Wiring Harness Front Left Right N/O/S Wiring Loom A2035409213
Promo price
€27.95
€26.55
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00
-5%
Part no. 8353447
BMW E36 E38 Relay Two Pole Make Contact 8353447
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 914014H161
Hyundai H-1 Fuse Box Front Relay Engine Control Unit Module ECU 91401-4H161
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 7514610
Injection Valve Wiring BMW E60 E61 E65 N62 N62N Ignition Loom Harness 7514610
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 7542615
BMW 1 3 5 6 7 Z4 Series E87 E90 E60 E64 E65 E85 Power Distribution Box 7542615
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 6920469
BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 4L0959792B
Audi Q7 4L Door Control Unit Module ECU Passenger Side 4L0959792B
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 4L0907468B
Audi Q7 4L Gateway Module Central Control Unit 4L0907468B
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 6925945
BMW 5 Series E60 E61 Rear Left Right Door N/O/S Wiring Cable Harness Loom
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A0005455916
Mercedes W204 Automatic Gearbox Transmission Module Unit ECU A0005455916
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. A1775404910
Cable Wiring Mercedes W177 W247 Fuel Pump Sending Unit Plug Socket A1775404910
Promo price
€42.95
€25.77
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 6834091
BMW F87 F80 F82 Audio Amplifier Harman Becker Active Sound Design System 6834091
Promo price
€99.95
€59.97
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 80A959655N
Audi Q5 FY Air Module Control Unit SRS System ECU 80A959655N
Promo price
€208.95
€125.37
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 9259467
Fuse Box BMW X3 F25 Power Distribution Control Unit Module Front 9259467
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9304728
PDC Wiring BMW X3 F25 Front Bumper Loom Cable Harness Parking Sensors 9304728
Promo price
€89.95
€76.46
Free delivery - Thu, Nov 06
If paid before 14:00
Part no. 8E5035223D
Audi A4 B7 Stereo Radio Sound Audio Amplifier Module Harman Becker 8E5035223D
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A2059008118
Telematics Module Mercedes W176 W205 W218 Communication Control Unit A2059008118
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. A2469064201
Antenna Amplifier Mercedes X117 W176 W205 Rear Aerial Module A2469064201
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. A6519007500-13
Mercedes W212 E250 CDI 651.924 204HP Engine Unit ECU Kit A6519007500 Key Lock
Promo price
€313.95
€188.37
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. GK2T-11000-DB
Ford Transit Custom Engine Starter Motor 2.0 EcoBlue GK2T-11000-DB
Promo price
€94.95
€80.71
Free delivery - Thu, Nov 06
If paid before 14:00
-40%
Part no. 7641659
Engine Wiring BMW F10 F20 F30 N20 125i 328i 528i N20 Harness Module 7641659
Promo price
€99.95
€59.97
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 7615308
BMW F20 F21 F30 Petrol N13 Wiring Loom Harness Engine Gearbox Manual 7615308
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. A0038208426
Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00
-15%
Part no. 9111165-PB2
PDC Sensor BMW E81 E82 E87 E88 E90 E91 Ultrasonic Parking SET X4 Platinbronze
Promo price
€51.95
€44.16
Free delivery - Thu, Nov 06
If paid before 14:00
-5%
Part no. 6945145
BMW E60 E61 E63 Air Control Module Passenger Side Door 6945145
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 .