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. 1T0971235A
Volkswagen Golf MK5 6 Audi A3 8P Negative Battery Terminal Cable 1T0971235A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9247088
BMW X1 Series E84 Wiring Loom Harness Passenger Side 9233559
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2075454440
Mercedes-Benz E-Class A207 Convertible Control Unit Module Bracket Trunk
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2105460141
Mercedes-Benz E-Class W210 Battery Cable Box Connector Petrol A2105460141
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8678964
BMW X1 F48 Mini Cooper F55 F56 Engine Gearbox Module Wiring Cable Loom 8678964
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. CK2T-6M091-AD
Ford Transit Custom 2.2 TDCi Glow Plug Wiring Loom Cable Wire CK2T-6M091-AD
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 5LA907357H
Audi A6 C6 Front Lamp Headlight Range Control Module Unit ECU 5LA907357H
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2135406100
Fuse Box Mercedes W205 Interior Equipment Fuse Box Control Module A2135406100
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7N0941329
Audi A3 8V 30 TDI DGTE Ad Blue Reducer Dosage Control Module Unit ECU 7N0941329
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 7410612
BMW F34 GT Tailgate Lift Module Rear Boot Trunk Lid Control Unit ECU F005V01708
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 7520019-5
MINI Cooper S R52 R53 W11 170HP Engine Control Unit ECU DME 7520019 Manual
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9315130
Door Wiring Harness BMW F25 Rear Left Right Door N/O/S Wiring Loom 9315130
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A6229000700
Mercedes W447 Bosch Glow Plug Relay Controller Unit Control Module A6229000700
€75.95
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-15%
Part no. A0014460340
Mercedes W245 B150 CDI OM266.920 Engine Control Unit Module ECU A0014460340
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 2Q0915181B
Seat Ibiza Mk5 Negative Battery Terminal Cable Lead 2Q0915181B
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. GK3T-14A120-AC
Ford Transit Positive Battery Lead Harness Wiring Cable Loom GK3T-14A120-AC
Promo price
€51.95
€31.17
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A6511501879
Mercedes W639 OM651.940 113 CDI 136HP Engine Unit Module ECU A6511501879 Manual
Promo price
€170.95
€102.57
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9187541-1
BMW E88 ECU Body Control Module H3 PL2 JBBFE II Junction Box 9187541
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6924389
BMW Z4 Series E85 E86 Battery Positive Cable Fuse Box B Base 6924389
Promo price
€25.95
€24.65
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8634246
Mini F54 F60 B42 B46 B48 Ignition Injection Valve Wiring Harness Loom 8634246
Promo price
€47.95
€40.76
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1715420123
PDC Display Mercedes W169 W211 Parking Distance Sensor Control Unit A1715420123
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 7589971-4
ECU Kit Mini R55 R56 R57 N12 1.6 120HP Control Unit DME 7589971 + CAS3 + Key
Promo price
€170.95
€102.57
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9223682
BMW X5 X6 Series E70 E71 Dashboard Onboard Monitor Display Screen 8,8" 9223682
Promo price
€132.95
€79.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A0045467540
Mercedes W204 W221 Distributor Box Block Control Unit Relay A0045467540
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7948144
BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8512047
BMW E90 E91 LCI N47N 320d ed ECU KIT DDE CAS 3 Key 8512047 Manual
Promo price
€165.95
€99.57
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 7P6971121H
VW Volkswagen Touareg 7P Door Wiring Loom Harness Front Left N/S 7P6971121C
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8T0035223L
Audi A4 B8 A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223L
€185.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6826201
Junction Point BMW X5 F15 X6 F16 B + Battery Power Distributor 6826201
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2125405710
Mercedes W212 PDC Wiring Parktronic Parking Sensor Cable Rear A2125405710
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. GR3T-14B321-DF
Ford Mustang GT Mk6 Air Module Control Unit GR3T-14B321-DF
€113.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 2002160
Ford Focus Mk3 III Negative Minus Ground Battery Terminal Cable F1FT-14324-DAC
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8606306-6
BMW F30 320i N20 184HP ECU Kit Engine Control Unit DME 8606306 Key FEM Automatic
Promo price
€569.95
€341.97
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A1715409245
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715409245
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6821407
High Voltage Cable BMW F45 Mini F60 Hybrid Harnes EDH 6821407
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8809737
PDC Wiring BMW X4M F98 G02 Rear Bumper Parking Assistance Sensor Harness 8809737
Promo price
€89.95
€53.97
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 3424581
BMW X3 Series E83 Airbag Control Unit Module ECU 65773424581 3424581
Promo price
€36.95
€31.41
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-40%
Part no. 7939175
Mini F54 F55 F56 F57 F60 Rain Light Solar HUD Sensor 9496244
Promo price
€66.95
€40.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2218230050
Mercedes W221 Centre Console Telephone Keypad Control Unit Module A2218230050
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4H0951253A
Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 645 4H0951253A
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6C0959653
VW Polo 6R Seat Ibiza 6J Clock Spring Steering Column Squib Ring 6C0959653
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. YUCEL-Y12-6
Yuasa Yucel Burglar Alarm Battery Rechargeable Unit Y1.2-6 6V 1.2Ah C20
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 7L0909606C
Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606C
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A4475406353
Mercedes Vito W447 Battery Cable Diesel OM651 Alternator Wiring A4475406353
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8678960
Mini Cooper S F55 F56 F57 F60 Valvetronic Wiring Cable Loom Harness 8678960
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 1C0880201M
Volkswagen New Beetle Steering Wheel Air Module Driver's Side Black 1C0880201M
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 7P6971161FL
VW Touareg 7P Door Wiring Loom Harness Cable Front Passenger Side 7P6971161ES
€42.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9395949-1
Radio Player Mini F54 F55 F56 Stereo Head Unit Module Alpine 9395949
Promo price
€142.95
€85.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9228495
BMW F07 GT ECU Body Control Module Junction Box V12 PL2 JBBFE III 9228495
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. RHD-4G2971228DQ
Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9365837
BMW F20 F21 F22 F30 F31 Head Unit Basic Media Headunit 9365837
Promo price
€218.95
€131.37
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1695457740
Mercedes-Benz A B W169 W245 Bracket Starter Alternator Control Unit A1695457740
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A1698204185
Mercedes A B Class W169 W245 Airbag System Control Unit Module ECU A1698204185
Promo price
€42.95
€36.51
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 7823420
BMW E60 E87 E90 LCI N47 120d 320d 520d ECU Control Unit DDE 7823420
Promo price
€113.95
€68.37
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7560626
BMW X3 Z4 E83 LCI E85 E86 Power Distribution Module Fuse Box 7560626
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2128204585
Mercedes-Benz A B W176 W246 Glove Box Aerial Antenna Booster Amplifier
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-15%
Part no. 8605456
Engine Wiring BMW F21 F30 LCI F36 N20 Loom Module Harness Cable 8605456
Promo price
€42.95
€36.51
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7516376
BMW E65 E66 E67 Electric Valve 735i 745i 735Li 745Li 745LiS 7516376
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 1K0951253
VW Volkswagen Audi Seat Relay 449 Unit Module 4 Pins 1K0951253
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9136726-2
BMW Mini Cooper R55 R56 Multifuse B Battery Power Distributor Cable 9136726
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A6394407810
Wiring Loom Mercedes W639 Vito Cable Front Door Left Right N/O/S A6394407810
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 6871062
BMW F01 F07 F10 F12 VDC Module Rear Suspension Level Control Unit 6871062
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2469000005
Mercedes W176 PDC Parking Distance Control Module Unit A2469000005
Promo price
€66.95
€40.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A6397600340
Mercedes Vito W639 Door Handle Cable Catch Bowden Cable Rear A6397600340
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2469017000
Mercedes W176 Windscreen Rain Sensor Unit Module A2469017000
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A1769052400-1
Mercedes W176 Pressure Crash Impact Sensor Control Module A1769052400
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7510646
BMW 7 Series E65 E66 E67 Ventilation Hose E-Box Fan 7510646 12907510646
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9361654
Radio Player Mini F55 F56 CD Bluetooth DAB Control Unit Module 9361654
Promo price
€118.95
€101.11
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4H0951253C
Seat Skoda Audi VW Polo 6R Multi Use Control Module Relay 4 Pin 646 4H0951253C
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8T0035225J
Audi A5 8T Antenna Aerial Amplifier Module Control Unit 8T0035225J
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2205401124-1
Fuse Box Unit Mercedes CL S C215 W220 1 Front Right O/S ECU A2205401124
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8X0959795A
Audi A1 8X Q3 8U Rear Door Module Control Unit ECU 8X0959795A
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 6937515-9
BMW E87 E90 E91 Radiator Fan Cable Harness Loom Wiring 6937515
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. LHD-HC-8613-R56
Mini R56 R57 R58 Display Screen Instrument Cluster Speedo Android HC-8613
Promo price
€284.95
€170.97
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9188853
BMW X5 E70 X6 E71 Battery Earth Cable Ground - Pole Lead L= 490MM 9188853
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6885215
BMW F90 M5 F91 M8 G05 G11 G30 Steering Column Control Unit Module 6885215
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 04C903023L
Audi A1 8X 1.2 TFSI CBZA Petrol Engine Alternator Generator 04C903023L
€32.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2741501802
Mercedes W213 Engine Wiring Harness Cable Loom A2741501802
Promo price
€180.95
€108.57
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A1669003602
Mercedes W204 R172 DAB Receiver Digital Audio Control Unit Module A1669003602
Promo price
€89.95
€53.97
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8794297
BMW F20 F21 F22 F30 F31 F32 Mini F55 F56 F57 Head Unit Basic Media DAB 8794297
Promo price
€137.95
€82.77
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2218708326
Mercedes W221 Rear View Backup Camera Control Unit Module A2218708326
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 3D0909601F
VW Volkswagen Touareg 7L Air Module Control Unit ECU SRS 3D0909601F
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9203304
BMW X5 Series E70 Cable Loom Door Rear Left Right N/O/S Wiring Harness 9207857
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6972065
BMW E91 Touring Ultra Sonic Burglar Alarm System Sensor Module 6972065
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6970337
BMW E92 Seat Backrest Adjustment Adapter Lead Cable 6970337
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9487220
BMW X1 F48 20iX xDrive B48C 192HP Engine Control ECU DME Kit 9487220 Automatic
€379.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2128205026
Mercedes W212 Impact Crash Sensor Door Left Right A2128205026
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2469067100
Mercedes W176 W246 C117 Fuse Relay Box Control Unit Module A2469067100
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9263800
BMW E90 LCI ECU Footwell Light Module FRM3R Rear Led Basis 9263800
Promo price
€113.95
€96.86
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 3Q0907338
Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2115454840
Mercedes E-Class S211 W211 Battery Tray Holder Mounting Bracket A2115454840
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2079012500
Air Module Mercedes C204 C207 Sensor Control Unit ECU A2079012500
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9383181
BMW F20 F21 F22 F30 F31 F32 F36 Fuse Box Body Module Control Unit FEM 9383181
Promo price
€123.95
€74.37
Free delivery: Feb 16 – 19
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 .