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. A0025422619-3
Relay Mercedes W203 W204 W212 W639 W906 4-Pin Grey Hella 12V A0025422619
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. A2229000016
Entry Module Mercedes C253 W205 W213 C238 Keyless Go Control Unit A2229000016
Promo price
€56.95
€34.17
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 8V0971228
Audi RS3 8V 2.5 TFSI Quattro Starter Motor Battery Cable Wiring 8V0971228
€32.95
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 8W2035043E
Audi A4 B9 MMI Multimedia Sat Nav Navigation Control Head Unit 8W2035043E
€474.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9119355
BMW E60 E61 E63 E81 E87 E90 E91 DAB Radio Tuner Module 9119355
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 6970908
BMW E65 E66 Sensor Front Right Door Airbag O/S 6970908
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A2129004910
Radio Head Unit Mercedes W212 CD Audio Player Head Control Unit A2129004910
Promo price
€118.95
€101.11
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 4G8959792G
Audi A6 C7 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 3Q0907530AG
Audi Q2 Q3 F3 1.5 TFSI Gateway Control Unit Module ECU 3Q0907530AG
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 4H0907658B
Audi A3 8V A5 A6 A7 Air Quality Sensor Unit 4H0907658B
€23.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8K0959663
Audi A4 B8 A5 8T Voltage Stabilizer Converter Control Unit Module 8K0959663
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 6902285
BMW E39 E87 E90 E91 Trigger Contact PDC Sensor Tweeter Gong 6902285
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
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 - Mon, Dec 29
If paid before 14:00
-15%
Part no. A2229003210
Mercedes W205 Head Unit Audio Player Radio Sat Nav Module A2229003210
Promo price
€37.95
€32.26
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9293313
BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V5 REM 9293313
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8385157
BMW X3 E46 E83 LCI Start Point Housing Bracket Base B 8385157
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 8510592-1
BMW E81 E87 E90 LCI 118d 318d N47 ECU Kit DDE CAS3 Key 8510592
Promo price
€94.95
€56.97
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 8E0907637
Audi A4 B7 YAW Sensor ESP Rotation Rate Acceleration Control Unit 8E0907637
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 8506566-2
BMW E90 E91 LCI 320d ed N47N 163HP ECU DDE 8506566 Manual Transmition
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
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 - Mon, Dec 29
If paid before 14:00
-5%
Part no. A2129009128
Door Module Mercedes W207 W212 CLS W218 Front Left N/S Control Unit A2129009128
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 9677006780
Citroen Berlingo B9 1.6 HDI 9HN Engine Control Unit ECU EDC 9677006780 Manual
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9266328
ICM Module BMW F07 GT F01 F02 F03 F04 Air Module Control Unit ECU 9266328
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 1388277
BMW E39 E46 E60 E61 E83 E90 E91 Switch Glove Box Light
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 6964141
BMW 7 Series E65 E66 E67 Control Unit Module Door Front Driver Side 6964141
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A1179001801
Mercedes W176 Air Module System Control Unit Module ECU A1179001801
Promo price
€85.95
€73.06
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 8V0857273P
Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P
€56.95
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A1679004712
Bluetooth Module Mercedes W205 W213 W222 W238 Control Unit ECU A1679004712
Promo price
€37.95
€32.26
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9118064
BMW 7 Series E65 E66 Centre Console Vent Storage Compartment Support 9118064
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 6887753
BMW F20 F21 F22 F30 F31 F32 ICM Control Unit Module ECU 6868599
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 8W0915181A
Audi A5 F5 HV Battery Negative Cable Terminal 8W0915181A
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. A2057200522
Mercedes GLC X253 Front Door Trim Cover Panel Strip Left N/S Black A2057200522
€66.95
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 4E0910217C
Audi Q7 4L Front Camera FAS Lane Assistance Control Unit 4E0910217D
Promo price
€56.95
€48.41
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. A0009009209
Mercedes W205 C253 Diesel Adblue Module Control Unit ECU A0009009209
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 6989309
BMW 1 3 X1 Series E84 E90 E91 E92 Diesel N47 Air Condition Con Suction Hose Pipe
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8E0035111D
Audi TT 8J Radio Head Unit Navi CD DVD Player Changer 8E0035111D
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. A2469016002-1
Display Screen Mercedes W176 W246 Central Information Dashboard Dash A2469016002
€80.95
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A9069006503
Door Module Mercedes W906 Front Left Right N/O/S Control Unit ECU A9069006503
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9229007
BMW F10 Antenna Amplifier Diversity 868 MHZ 9229007
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 8577764-1
BMW F10 F11 520d Diesel N47N 184HP ECU Kit DDE 8577764 + Key + CAS4 Automatic
Promo price
€379.95
€227.97
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 9T1T-14B321-BE
Ford Transit Connect ECU Control Unit Impact Sensor Module Airbag 9T1T-14B321-BE
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8H0035411D
Audi A3 8P Door Card Speaker Rear Left Right N/O/S Audio Speaker 8H0035411
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 8W0915459E
Audi A4 B9 Battery Positive Terminal Cable Plus Pole Wiring Harness 8W0915459E
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 6C1T14A481CC
Ford Transit Mk7 Fuse Box Body Control Module ECU 6C1T14A481CC
€70.95
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 6826326
BMW F40 G05 G20 G30 Shark Roof Fin Antenna Aerial Module Unit 6826326
Promo price
€66.95
€40.17
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 8617239
Gearbox Module Mini R55 R56 LCI R60 Automatic Transmission Unit EGS 8617239
Promo price
€56.95
€34.17
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9225022
BMW 2 3 4 Series F22 F30 F31 F32 Battery Power B+ Distribution Box 9225022
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 9229873
BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE III Junction Box 9229873
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8802918
BMW F20 F30 Mini F55 F56 Radio Remote Control Receiver 434 MHZ 8802918
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 8512043
BMW 3 E90 E91 LCI 316d 318d N47N Engine Basic DDE 8512043 Control Unit Manual
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9142092
Bluetooth Antenna BMW X1 X3 Z4 E84 E89 F01 F02 F03 F25 Amplifier AMP 9142092
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 7510921
Mini R52 Cabrio Petrol W10 Engine Wiring Loom Harness Module 7510921
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 6807634
BMW X5 F15 F20 F30 SRS Air Module Bag Control Unit Module ECU 6807634
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 6986081-2
CD Changer BMW E60 E61 E63 E64 Compact CD Changing Unit 6986081
Promo price
€37.95
€32.26
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 9331207
BMW F20 CD DAB Radio Bluetooth Head Unit 9331207
€47.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 7160897
BMW X5 E53 E60 E61 E65 E81 E87 E90 E91 Turn Indicator Silver Bulb 7160897
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 7631932
Engine Wiring BMW F30 F31 N20 Loom Module Harness Cable 7631932
Promo price
€75.95
€64.56
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 5Q0919294K
Audi RS3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294K
€23.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9126106
BMW Mini R55 R56 R57 Cabrio Adapter Lead Outside Temperature Sensor 9126106
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 8514766
BMW 1 Series F20 114d 116d ed N47N Wiring Harness Engine Glow Module 8514766
Promo price
€170.95
€102.57
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 7545142
BMW Z4 Series E85 N52 Roadster Cable Alternator Starter Base B+ 7545142
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A0994644206
Mercedes X253 Steering Wheel Contact Switch Control Plate A0994644206
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 9199305
KaFAS Camera BMW F10 F11 Rear View Control Unit Module 9199305
Promo price
€89.95
€53.97
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 7549284
BMW 1 3 Series E87 E90 118i 318i N46 Wiring Loom Cable Harness Engine Gearbox
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. A2469003417
Parking Brake Module Mercedes W176 W231 W246 Electric Control Unit A2469003417
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. A2118704926
Seat Module Mercedes W164 W203 W211 C219 Front Memory Control Unit A2118704926
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. A2049001206
Mercedes W204 Coupe Door Module Front Left N/S Control Unit A2049001206
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9125224
BMW 1 3 SERIES E87 E90 E91 Control Unit Airbag ECU NO CRASH DATA 9125224
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 6958526
BMW 5 X5 X6 Series E60 E61 E70 E71 F07 F10 F11 Seat Adjustment Switch Right O/S
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 9292655
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM ECU LR01 9292655
Promo price
€113.95
€68.37
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 6927312
BMW E60 E61 E65 E66 Front Seat Module Control Unit 6927312
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 5N0906093C
Audi Q3 S Line Fuel Pump Relay Control Unit Module ECU 5N0906093C
€28.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8T0959792H
Door Module Audi A5 8T A4 B8 Control Front Left N/S Unit 8T0959792H
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. A2319003706
Mercedes R231 Control Unit Module Passenger Seat A2319003706
€127.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. A1679050700
Mercedes W177 Crash Impact Sensor Front Door Left Right Unit A1679050700
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 1K0971250AH
VW Golf Mk5 V Negative Battery Terminal Cable Wiring 1K0971250AH
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9287530
BMW 1 Series F20 Control Unit Air Conditioning A/C Module 9287530
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. A1645408101
SAM Control Module Mercedes W164 W251 Comfort Fuse Box Unit A1645408101
€237.95
Free delivery - Mon, Dec 29
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 - Mon, Dec 29
If paid before 14:00
-5%
Part no. 6954130
BMW 1 3 Series E87 E90 E92 Front Seat Adjustment Switch Right O/S 6954130
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. HC345H297AA
Ford Transit Mk8 2.0 EcoBlue AdBlue Module Control Unit HC34-5H297-AA
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A2439000800
Drivetrain Module Mercedes H243 Transmission Control Unit ECU A2439000800
Promo price
€161.95
€137.66
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 9264973-1
BMW X5 E70 Seat Control Unit Module ECU 9264973
Promo price
€47.95
€40.76
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 4F0959792T
Audi A6 C6 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 7419610
BMW F30 F31 LCI Headlight LED Module Insert Light Source Set 7419610
Promo price
€56.95
€48.41
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8200587119
Renault Trafic III Vauxhall Vivaro B Relay 5-Pin Grey Unit 8200587119
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 4H0907801F
Audi A6 C7 Parking Brake Handbrake Module Control Unit 4H0907801F
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 9367837
Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837
€170.95
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A2469002616
Mercedes W176 W246 PDC Parking Distance Sensor Control Unit Module A2469002616
Promo price
€56.95
€48.41
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 8378113
BMW Z4 Series E85 E86 Interior Fuse Box 8378113
Promo price
€26.95
€25.60
Free delivery - Mon, Dec 29
If paid before 14:00
-40%
Part no. 7852630
Differential Lock Module BMW F10 M5 F80 M3 Rear Axle Control Unit ECU 7852630
Promo price
€56.95
€34.17
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A2229009910
Mercedes W205 W213 C238 Seat Heating Heater Module Control Unit ECU A2229009910
Promo price
€66.95
€56.91
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 1K0937125C
Fuse Box Audi A3 8P Volkswagen Golf Mk5 Cover Trim Panel Housing 1K0937125C
€28.95
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. A2118203375
Antenna Booster Mercedes W211 Rear Boot Lid Tailgate Amplifier A2118203375
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
-5%
Part no. 9371789
BMW F20 F21 F30 F31 Bluetooth Teleservices GPS Telematics Module 9371789
Promo price
€23.95
€22.75
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 1508927-2
BMW Mini Cooper S R52 R53 2 Positive Battery Cable Fuse Box Module B 6911180
€24.95
Free delivery - Mon, Dec 29
If paid before 14:00
Part no. 7633242-1
BMW F10 F20 F30 Integrated Relay Power Supply Module Distribution Box 7633242
€23.95
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. 7199998
Mini R52 Cabrio Convertible Folding Top Roof CVM Module Control Unit 7199998
Promo price
€32.95
€28.01
Free delivery - Mon, Dec 29
If paid before 14:00
-15%
Part no. A2215404062
Mercedes W221 Air Suspension Control Unit Module Airmatic A2215404062
Promo price
€28.95
€24.61
Free delivery - Mon, Dec 29
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 .