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
Part no. 8Y0963554B
Volkswagen Golf 8 Rear Seat Couch Occupancy Sensor Unit 8Y0963554B
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 7592511
BMW E88 E90 E91 E92 LCI F20 F21 F30 Ignition Wiring N55 Engine Harness 7592511
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0959393
Audi A3 8V Control Unit Central Door Locking Module ECU 5Q0959393
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 4280002630
Toyota Hilux Vigo Engine Starter Motor Assembly Unit 03L911024A
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6770600
Mini R55 R56 Gearbox Clutch Cylinder Control Cylinder Unit 6770600
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9284421
BMW F10 F11 Gateway Module ECU Control Unit LEAR ZGW-02 Mid 9284421
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2218205375-CS
Mercedes CLK S Class C209 W209 W221 Roof Antenna Shark Radio Silver A2218205375
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8583653-1
Engine Wiring Loom BMW F10 F30 F31 LCI N57N Wiring Harness Glow Module 8583653
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. CC1T10300BB
Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8639595-9
BMW F30 320iX N20 163HP Engine Unit ECU Kit DME 8639595 FEM + Key Automatic
Promo price
€474.95
€284.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5A5D3C0
Keyless Entry BMW F40 G20 G21 G30 G31 Comfort Access Antenna 5A5D3C0
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4H0959651A
Audi A1 A6 A7 Impact Crash Control Sensor Module ECU 4H0959651A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A1665402709
Mercedes W166 Automatic Gearbox Wiring Loom Harness Cable A1665402709
Promo price
€42.95
€25.77
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2219050018
Mercedes-Benz S-Class W221 Headlining Alarm Sensor Module Cover Trim A2219050018
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2059006615
Mercedes W205 Windscreen Rain Sensor Front Control Unit A2059006615
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 237104376R
Mercedes Citan W415 109 CDI OM607.951 Engine Control Unit ECU 237104376R Manual
€32.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 03G971826A
VW Golf Mk5 Engine Wiring Loom Cable Harness Injector Module Diesel 03G971826A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959792A
Audi A5 8T Door Control Module Front Left N/S 8K0959792A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6820526
Head Unit BMW F20 F21 Radio Media GPS Sat Navigation Unit 6820526
Promo price
€142.95
€121.51
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8T0907468M
Audi A5 8T Central Gateway Module ECU Control Unit Lear 8T0907468M
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2049005015
Mercedes C204 W207 Suspension Damper Adjustment Control Unit Module A2049005015
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8K0907401-1
Audi A5 8T 3.0TDI CAPA Quattro 240HP Engine ECU Kit Ignition 8K0907401 + Key
Promo price
€227.95
€136.77
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2479052503
Mercedes Sprinter W910 Remote Key Control Unit A2479052503
Promo price
€94.95
€80.71
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A9075406960-1
Mercedes Sprinter W907 Fuse Box Prefuse Box Module F150/1 - MFB-1 A9075406960
Promo price
€80.95
€68.81
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A9076830400
Mercedes W907 Fuse Box Relay Cover Lid Control Unit Bracket Trim A9076830400
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0907279
Audi A5 8T Gateway Convenience Body Module Control Unit ECU 8K0907279C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8672514-1
BMW F80 M3 F82 F83 M4 431HP Engine Control ECU Kit DME 8672514 + FEM Module Key
Promo price
€1,139.95
€683.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2078205489
Mercedes-Benz W207 A207 Left Right A-Pillar Radio Aerial Antenna Amplifier Unit
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 3449686
Mini Cooper R55 R56 R57 Passive Go Module Control Unit 3449686
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 02M911023M
Volkswagen VW Golf Mk5 1.6 2.0 GTI Petrol Engine Starter Motor 02M911023M
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A0035420219-1
Relay Mercedes W639 W906 5-Pin Black 12V 20A A0035420219 Set X2
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-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 - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0959655L
Audi A3 8V Air Module Control Sensor ECU Unit 5Q0959655L
Promo price
€89.95
€76.46
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0907357
Audi A3 8V Headlight Head Light Lamp Range Control Unit Module ECU 5Q0907357
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8V0035736
Audi A3 8V Music Interface Multimedia Connection Module 8V0035736
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. EXHAUST-FLAP-CONTROL
Audi A3 8V 1.6 TDI CLHA Drive Exhaust Flap Control Module Unit Actuator
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2741504704
Mercedes X253 Engine Wiring Harness Line Supply Line A2741504704
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9196929
Seat Control Module BMW E60 E61 ECU Seat Controller Unit Module 9196929
Promo price
€61.95
€37.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8582719-1
Mini F55 F56 Cooper D B37 Diesel Engine ECU Kit DDE 8582719 BDC + Key Manual
€408.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 9362351
Head Unit Mini F55 F56 BMW F45 i3 I01 Radio DAB Media Player Unit 9362351
Promo price
€113.95
€96.86
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8578945-4
BMW F20 F21 F30 116d 316d N47N 116HP ECU Engine Contol Unit DDE 8578945 Manual
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A0015453716
Mercedes C209 Engine Kompressor 5 Speed Gearbox GSG Module Control A0015453716
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8631727-3
BMW Z4 E89 Roadster 18i N20 156HP ECU Kit DME CAS3 + Key 8631727 Manual
Promo price
€569.95
€341.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 03E971815A
Volkswagen Polo 6R Cover Wiring Loom Guide Bracket Trim 03E971815A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A1725400533
Mercedes R172 Cable Beam Engine Wiring Harness Loom A1725400533
Promo price
€66.95
€40.17
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. E93-RADIO
BMW E93 Head Unit Radio Player Navigation Control Module 5A2BF31
Promo price
€80.95
€48.57
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2188200187
Mercedes W221 Multimedia Interface USB Adapter Port Socket A2188200187
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A0215452032
Mercedes C140 CL420 119.981 279HP Engine Unit ECU A0215452032 Automatic Gearbox
Promo price
€94.95
€56.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 3437180
BMW E83 Telephone Bluetooth Roof Aerial Module Control Unit ECU 3437180
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2129008825
Mercedes C204 Fuse Box Control Unit SAM Module Relay A2129008825
Promo price
€113.95
€68.37
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0009828223-1
Mercedes W213 Power Relay 4 Pin 12V Hella A0009828223 SET x2
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0009828323-1
Mercedes W176 W246 Power Relay Control Module 5 Pin 12V A0009828323 Set X2
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9278358
BMW F20 F21 F22 F87 Windscreen Camera Front Window KaFAS Camera 9278358
Promo price
€61.95
€37.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8606777
BMW F30 F31 320iX N20 184HP Engine Control Unit ECU DME 8606777 Automatic
Product currently unavailable
-5%
Part no. A0025421419-1
Relay Mercedes W163 W169 W203 W210 Relay Unit 5-Pin Yellow Tyco A0025421419
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0025421319-4
Mercedes W204 Genuine Universal Car Relay 4-Pin Tyco X4 Black A0025421319
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 06A903143P
Audi TT 8N Alternator Bracket Mount Holder 06A903143P
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2128270228-PAL
Mercedes W212 Aerial Fin Roof Antenna Shark Palladium Silver - 792 A2128270228
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A1669003208
Mercedes ML W166 SAM Control Unit Rear Fuse Module A1669003208
Promo price
€142.95
€85.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5N0035552K
VW Tiguan 5N Antenna Amplifier Module Control Right O/S Unit 5N0035552K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A6429004201
Mercedes W221 BlueTec Exhaust Gas Aftertreatment Control Unit Module A6429004201
Promo price
€151.95
€91.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A4478260000
Mercedes Vito W447 Headlight Turn Indicator Light Socket Plug A4478260000
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 3C0937125A
Volkswagen Tiguan 5N Engine Bay Fuse Relay Box Terminal 3C0937125A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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, Oct 07
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 - Tue, Oct 07
If paid before 14:00
Part no. A2055455100
Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100
€37.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5WA971794R
VW Golf 8 1.5 eTSI HV Battery Positive Terminal Harness Cable Wiring 5WA971794R
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9282424
BMW 3 5 Series F10 F30 Control Unit Module Top Rear Side View Camera 9282424
Promo price
€170.95
€102.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A0009821923-1
Mercedes W205 Interior Trunk Fuse Box Automotive Pink Relays Set A0009821923
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A1695406945
Mercedes SLK R171 Gateway Control Unit Gateway Module ECU A1715405145
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 4L0959760
Audi Q7 4L Front Memory Adjustment Module Control Left Right N/O/S 4L0959760
Promo price
€94.95
€56.97
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2074401208
Mercedes W207 Parking Sensor Wiring Loom Cable Harness Rear PDC
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7H0907655A
Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8J0035223D
Audi TT 8J Audio Amplifier Radio Sound BOSE Unit 8J0035223D
Promo price
€569.95
€341.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2469008115
Mercedes W176 W246 Gearbox Transfer Case Control Module Unit ECU A2469008115
Promo price
€42.95
€25.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9315152
BMW X3 F25 Fuse Box Grouping Map Diagram Location 9315152
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A0205457832
Mercedes W140 Parking Control Unit Module Sensor A0205457832
Promo price
€161.95
€97.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A1669004002
Door Module Mercedes C117 W176 W246 Front Left N/S Control Unit A1669004002
€32.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0015426519
Mercedes C140 Brake Pump Relay Electrical Fuse Module Control Unit A0015426519
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A1408207126
Mercedes C140 Blinker Hazard Trailer Relay Module Control Unit A1408207126
Promo price
€227.95
€136.77
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8796289
BMW X3 G01 X4 G02 X5 G05 Battery Terminal Negative Cable Wire Wiring 8796289
€28.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 04E907309AF
Volkswagen Polo 5 6R 1.2 TSI CJZC 90HP ECU Engine Control 04E907309AF
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2319009106
Door Module Mercedes R231 Front Door Right O/S Control Module A2319009106
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
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, Oct 07
If paid before 14:00
-5%
Part no. 3428544
BMW X3 E83 LCI Fuse Box Grouping Map Diagram Location 3428544
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 50325-MAL-600
Honda CBR F3 Battery Box Tray Covering Housing Trim Holder Bracket 50325-MAL-600
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A2319014702
Mercedes R231 Air Module Control Unit ECU SRS Module A2319014702
€284.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8X0971687C
Audi A1 8X Rear Door Harness Left N/S Wiring Loom Cable 8X0971687C
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8X0971693A
Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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-5%
Part no. 7L0937576B
Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 7L0971225
Audi Q7 4L 4.2 TDI Quattro Positive HV Battery Terminal Cable Harness 7L0971225
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7M0951253C-1
VW Volkswagen T5 Audi Seat Skoda Relay Black Control Unit 5 Pin 12V 7M0951253C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 1J0927841
Audi Volkswagen Seat Skoda ESP Relay Unit Grey 444 1J0927841
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7H0907652A
Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4L0959655C
Audi Q7 4L Air Module Control Unit ECU Impact Sensor 4L0959655C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 4L0907468B
Audi Q7 4L Gateway Module Central Control Unit 4L0907468B
€23.95
Free delivery - Tue, Oct 07
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 .