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.
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Category
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In Stock
Price

-5%
Part no. E92-PDC-WIRING-LOOM-HARNESS-REAR-BUMPER-2
BMW E92 E92N LCI PDC Wiring Loom Harness Rear Bumper
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 7P0959651
Porsche Cayenne 92A Front Pressure Crash Impact Sensor 7P0959651
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A1645400641
Mercedes-Benz M-Class W164 Battery Ground Earth Strap Cable Wiring A1645400641
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1636880035-1
Mercedes-Benz M-Class ML W163 1 Fuse Box Relay Lid Cover Trim A1636880035
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6921979
Door Module BMW E65 E66 E67 Front Door Control Unit Passenger Side 6921979
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8580061
BMW F40 F48 Mini F55 F56 Battery Starter Cable Wiring Loom B47B B47D 8580061
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8K0919475T
Audi A5 8T PDC Parking Distance Control Module Unit Valeo 8K0919475T
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6906347-1
BMW X5 E53 Rear Bumper PDC Plug Socket Loom Cable 6906347
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2135401217
Mercedes W213 OM642 Diesel Engine Alternator Wiring Loom Harness A2135401217
Promo price
€47.95
€28.77
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8576341-1
BMW F20 F30 F31 116d 316d 116HP N47N Engine ECU Control Unit DDE 8576341 Manual
Promo price
€61.95
€52.66
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 1722094
Battery Cable BMW E36 E46 M43 M57 Starter Alternator Wiring Harness 1722094
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9298961
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9298961
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8693361-2
BMW F87 LCI M2 370HP N55 Engine Control Module Unit ECU DME 8693361 Automatic
Promo price
€422.95
€359.51
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9270495-1
BMW X5 E70 X6 E71 F10 F11 F12 Parking Sensor PDC Ultrasonic Black 9251944 SET X4
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A9075400500
Mercedes W907 Battery Cable Wiring Loom Harness Cabling A9075400500
Promo price
€75.95
€45.57
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8507918
BMW F20 F21 N47S1 Engine Wiring Harness Injector Module Loom Cable 8507918
Promo price
€104.95
€62.97
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 2Q0915181B
Seat Ibiza Mk5 Negative Battery Terminal Cable Lead 2Q0915181B
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. GK3T-14A120-AC
Ford Transit Positive Battery Lead Harness Wiring Cable Loom GK3T-14A120-AC
Promo price
€51.95
€44.16
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 6966551
BMW 5 Series E60 E61 Front Door Wiring Loom Harness Passengers Side 6966549
Promo price
€37.95
€32.26
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 6935597-2
4 x BMW 1 3 E81 E87 E90 E91 PDC Set Parking Sensor Front Rear Titansilber Silver
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6788716
BMW 7 Series E65 E66 E67 Steering Column Control Unit CIM Module
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. PEO118811
Mazda 6 GJ Relay 4-Pin Electrical Unit Multi-Purpose Relay Black ACVN51212
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9110878
BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9110878
Promo price
€180.95
€108.57
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A4159064900-1
Mercedes Citan W415 Alternator Generator OM607 Diesel Engine 150A 14V 231000026R
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 7559811
Earth Ground Cable BMW E60 E61 E63 N62N 540i 550i 650i Battery Starter Wiring
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A1775403131
Mercedes w177 Sensor Wiring Harness Cable Front A1775403131
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6948692
BMW E60 E61 E63 Passenger Side Door Airbag Control Module 6948692
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 8518268
BMW E90 E91 LCI N47N 318d Diesel Engine Control Unit DDE ECU Manual 8518268
€66.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9324784
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9324784
Promo price
€56.95
€48.41
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9177118
CD Changer BMW X5 E70 X6 E71 Mini R55 R56 R57 6 Disc Changer Unit 9177118
Promo price
€37.95
€32.26
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 2371741
Mini F55 F56 Battery Cable Positive Battery Alternator Starter Wiring 2371741
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 03L903017E-1
Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9374508
BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 9374508
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2055400182
Mercedes W205 W213 C238 C253 Relay Fuse Box Top Cover Lid Cap A2055400182
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A1645400762
Mercedes W164 W211 C219 Tyre Pressure Monitor Control Unit Module A1645400762
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A1669008506
Seat Module Mercedes W176 W246 Control Unit Front Left Right N/O/S A1669008506
Promo price
€66.95
€40.17
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00

-40%
Part no. 8585729
BMW 3 Series F30 320d N47N Engine Gearbox Module Wiring Loom Harness Cables Set
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8589168
Alternator Harness BMW X3 G01 X4 G02 30dX 40dX B57 Cable Base B+ Loom 8589168
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2215400205
Mercedes W221 Brake Pad Wear Indicator Sensor Front Left Right N/O/S A2215400205
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9364818
BMW Z4 E89 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9364818
Promo price
€218.95
€186.11
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 1167294
Mini Cooper One R50 R52 Fresh Air Recirculating Actuator 1167294 6NN007626
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9662854180
Citroen C4 Starter Motor Diesel Engine 1.6 HDI Actuator Unit 9662854180
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2038219751
Mercedes C-Class W203 Roof Alarm Motion Sensor Cover Trim Grey A2038219751
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 7948147
BMW F40 F44 Rear Seat Bench Occupancy Mat Control Unit Sensor 7948147
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9286640
Mini Navigation Head Unit R55 R56 R57 LCI R60 R61 CHAMP 2 Sat Nav DAB 9286640
Promo price
€237.95
€202.26
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9119058
BMW E81 E87 E90 E91 Airbag Control Unit ECU NO CRASH DATA 9119058
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8K0959793R
Audi Q5 8R Door Module Front Left N/S Control Unit ECU Controller 8K0959793R
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8573260-1
BMW F20 F21 116d ed Diesel N47N 116HP Engine Control ECU DDE 8573260 Manual
Promo price
€71.95
€43.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A0005468502
Battery Cover Mercedes W205 W212 Battery Positive Pole Cover Red A0005468502
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 5Q0959595E
Audi A3 8V Door Control Module Unit ECU Rear Left Right N/O/S 5Q0959595E
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1698702210
Mercedes-Benz A B W169 W245 Tow Protection Switch Button Control Unit Module
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 1K0907530G
Audi A3 8P Gateway Module Diagnostic Interface Control Unit ECU 1K0907530G
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2465402705
Mercedes W176 Door Harness Loom Cable Wiring Front Left Right N/O/S A2465402705
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 6982402
BMW E81 E84 E87 E90 E91 Parking Module Control Unit PDC 6982402
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8K0971688S
Audi A4 B8 Door Harness Loom Cable Wiring Rear 8K0971688S
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2118703285
Mercedes W211 Door Module Rear Right O/S Control Unit ECU A2118703285
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A0005454516
Mercedes W204 Automatic Gearbox EGS Control Module Unit ECU A0005454516
Promo price
€31.95
€27.16
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9229989
BMW F07 GT Cable Loom Door Rear Left Right N/O/S Wiring Harness 9210135
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2105400230
Mercedes-Benz E-Class W210 Battery Positive Plus Cable Loom Harness A2105400230
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 7558911
BMW 1 Series E81 E82 E87N E88 NOx Cable Wiring Petrol 7558911 12517558911
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2125407605
Door Wiring Mercedes W212 Loom Cable Rear Left Right N/O/S A2125407605
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 93970000052
Trafficmaster Control Module Mini R50 R53 GPS Control Unit ECU 93970000052
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9177985-1
BMW E93 Cabrio ECU Body Control Module H3 Junction Box 9177985
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8605894
Mini Cooper S R55 R56 LCI Engine Wiring Injection Loom Harness N18 8605894
Promo price
€113.95
€68.37
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9381581
BMW i3 I01 IBS Cable Negative Battery Lead Wiring Harness Control Unit 9381581
Promo price
€42.95
€25.77
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 1744987
BMW E39 Battery Clamp Fuse Cable Positive 1744987
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. F20 F30 PLUG SOCKET LOOM PDC
PDC Plug BMW F20 F22 F30 F32 Loom Socket Parking Sensor Wiring Harness
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2059003740
Mercedes A205 Convertible Comfort Control Unit Module A2059003740
Promo price
€85.95
€51.57
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A0009008214
Mercedes W177 W247 W447 W907 Fuel Pump Module Control Unit ECU A0009008214
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 9252639
Parking Module BMW E81 E84 E87 E90 E91 Control Unit PDC 9252639
€56.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 7624621
BMW X1 F84 Starter Wiring Battery Alternator Cable Harness Loom 7624621
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 237101754R
Renault Trafic F83 M9R 2.0 DCI Engine Control Unit Module ECU 237101754R Manual
Promo price
€51.95
€31.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9360371
BMW X6 F16 Fuse Relay Box Control Unit Power Distribution 9360371
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8634246
Mini F54 F60 B42 B46 B48 Ignition Injection Valve Wiring Harness Loom 8634246
Promo price
€113.95
€96.86
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2129008816
Mercedes X218 Radio Comand Navigation Seat Control Unit Module A2129008816
Promo price
€256.95
€154.17
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 9389310
BMW F45 Door Wiring Front Driver's Door Loom Cable Wiring Harness 9389310
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 6C0959653
VW Polo 6R Seat Ibiza 6J Clock Spring Steering Column Squib Ring 6C0959653
€28.95
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8574372
BMW F30 F32 330d 430d Diesel N57N Engine Control Unit ECU DDE 8574372 Automatic
Promo price
€189.95
€113.97
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8677247
Mini Countryman F60 Cable Alternator Starter Wire 12428677247 8677247
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 7823310
BMW 3 Series F30 F31 330d 330dX N57N Diesel Alternator Starter Cable B+ 7823310
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A0045468440
Mercedes W177 Power Distributor Connector Plug Unit A0045468440
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A0038202926
Mercedes W164 X164 W221 SRS Airbag Impact Crash Sensor A0038202926
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 4L0971225D
Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8578945-2
BMW F20 F21 F30 F31 116d 316d N47N 116HP ECU Kit DDE 8578945 Key FEM Lock Manual
Promo price
€341.95
€205.17
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 3Q0907338C
Audi VW Seat Skoda Headlight Aim Range Control Unit Module ECU Xenon 3Q0907338C
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 9270356-1
BMW F40 Mini F55 F56 Fuse Box Power Distribution Junction Relay Unit 9270356
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2129002216
Mercedes W212 Display Screen Information Navigation Dashboard A2129002216
Promo price
€104.95
€62.97
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2125455640
Mercedes W212 Battery Holder Mount Bracket Support E-Class A2125455640
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9114135
BMW X5 X6 Series E70 E71 Power Distribution Fuse Box 9114135
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6906347
BMW X5 Series E53 Rear Bumper PDC Cables Set Wiring Loom Harness 6906347
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9176193
Mini Cooper R57 R58 LCI Radio Aerial Antenna Amplifier FM 9176193
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
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 - Tue, Nov 04
If paid before 14:00

-5%
Part no. 7614083
BMW F20 F21 F22 F30 F31 F32 LCI Earth Ground Cable Battery Wiring 7614083
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6937083
Ultra Sonic Module Mini Cooper R50 R53 Alarm System Sensor 6937083
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 5WA959436P
Volkswagen Golf CD1 Keyless Go Module ECU Entry Control Unit 5WA959436P
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A9065400113
Mercedes-Benz Sprinter W906 Rear Door Licence Plate Lighting Wiring Cable
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 8T0959792K
Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792K
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9284272
BMW F10 Body Control Module Electronic Junction Box 9284272
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
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 .