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. 7835872
BMW 5 Series E60 E63 E64 Carrier Holder Amplifier/Video Module Fairing EDC
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9389115
Mini Countryman R60 CAS3 Control Unit Key Reading Module 9389115
Promo price
€94.95
€80.71
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9151148
BMW X5 E70 X6 E71 Mini Cooper R55 R56 R57 6 Disc CD Changer 9151148
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9221462
BMW F01 Front Seat Control Unit Module ECU Left Temic 9221462
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8519663-14
Mini Cooper D R56 LCI R60 N47N 112HP Diesel Engine Unit ECU DDE 8519663 Manual
Promo price
€56.95
€34.17
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8574351-3
BMW X1 E84 18d 18dX Diesel N47N 143HP Engine Unit ECU DDE 8574351 Automatic
Promo price
€66.95
€40.17
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A2129006709
Head Unit Mercedes C207 W212 High Line Radio Sat Nav DVD Bluetooth A2129006709
Promo price
€108.95
€65.37
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8X0959792D
Audi A1 8X Front Passenger Side Door Module Unit Control ECU 8X0959792D
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0035420219
Relay Mercedes W639 W906 5-Pin Black 12A A0035420219
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9293242
BMW 3 7 Series F01 F02 LCI F34 Telematics Control Unit Module TCB ECE 9293242
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6915047
BMW E46 E39 E38 E83 E53 E85 E86 Control Unit Voice Input System Module 6915047
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8J0951177
Audi TT 8J Interior Roof Alarm Motion Ultrasonic Sensor 8J0951177
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A6396890279
Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6396890279
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2135409616
Mercedes Sprinter W910 Battery Sensor Negative Terminal Cable Wiring A2135409616
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9231174
BMW 3 4 F30 F32 Touring Amplifier Rear Window Antenna Diversity 9231174
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 5M0035724
Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8373700-3
BMW E60 E63 E87 E90 E91 5X Relay Make Contact White Green Set 8373700
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8574024
Engine Wiring BMW F30 F31 335dX N57Z Automatic Gearbox Cable Harness 8574024
Promo price
€37.95
€32.26
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2049013502
Mercedes W204 S204 Airbag Module Air Bag SRS Control Unit ECU A2049013502
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A2229000821
Mercedes C238 Headlight Ballast Control Unit Module A2229000821
€89.95
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A2139003022
Door Module Mercedes W205 W213 X253 Rear Right Door Control Unit A2139003022
Promo price
€56.95
€34.17
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 9122276
BMW 5 Series E60 E61 LCI Rear Bumper PDC Cables Wiring Loom Set 9122276
€23.95
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9122274
BMW E60 E61 LCI Front Cables Set Wiring PDC Parking Sensor Bumper 9122274
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8618444
BMW F30 LCI 330e B48X Cell Module Connector 8618444 61278618444
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8727997
BMW F44 Gran Coupe Door Wiring Harness Rear Door Right Left N/O/S 8727996
Promo price
€42.95
€25.77
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9279391
BMW 5 G11 G30 M5 Door Crash Sensor Front 9279391
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8W0971687BR
Audi A4 B9 Rear Right O/S Door Wiring Loom Harness 8W0971687BR
€56.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. N000000003996
Mercedes Universal Fuse Relay Electrical Unit Set Bag N000000 003996
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 130002613-1
BMW 5 X5 7 Series E60 E61 E65 E70 Longitudinal Seat Adjusment Drive Motor
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9314234
BMW F20 F21 F22 F30 F31 F32 Body Control Module Unit FEM ECU LR01 9314234
Promo price
€113.95
€68.37
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9247468
BMW 1 Series E81 Body Control Module ECU L2 PL2RR JBBFE III Junction Box 9247468
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0025422619
Mercedes ML W163 Relay 4-Pin Grey Tyco A0025422619
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9315685
BMW 1 2 3 4 Series F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9315685
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A6549009600-3
Mercedes GLC 220d X253 654.920 194HP 4Matic Engine Control Unit A6549009600
Promo price
€189.95
€113.97
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 80C919616
Audi Q5 FY Multimedia Volume Control Button Switch Knob Head Unit 80C919616
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9148267
BMW 3 Series E93 Seat Control Unit Module FSV 7.11.0 9148267
Promo price
€94.95
€56.97
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A2229063701
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063701
€28.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A0141540402
Alternator Mercedes W164 OM272 Engine Alternator 180A 14V Valeo A0141540402
Promo price
€75.95
€64.56
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8T0959795J
Audi A5 8T Rear Door Module Control Unit Module ECU Left Right N/O/S 8T0959795J
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8T0862335A
Audi A4 B8 Bluetooth Interface Module Control Unit ECU 8T0862335A
Promo price
€51.95
€31.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A6394409909
Wiring Loom Mercedes W639 Vito Cable Sliding Door Rear Left N/S A6394409909
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9231175
Diversity Antenna Amplifier BMW F30 F32 Rear Window DAB Module Unit 9231175
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A6519007401
Mercedes W212 E250CDI Blue Efficiency OM651 204HP Engine Module ECU A6519007401
Promo price
€89.95
€53.97
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2465453740
Mercedes-Benz A B Class W176 W246 Rear Fuel Pump Control Unit Bracket Holder
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A6461502734-1
Mercedes W204 C220 CDI 170HP 646.811 Engine Unit ECU A6461502734 Automatic
Promo price
€165.95
€99.57
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2129001529
Mercedes-Benz C E Class W204 W207 W212 Front Left Door N/S Control Unit Module
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 6982386
BMW X1 E81 E84 E87 E90 E91 Parking Control Module Unit PDC 6982386
€56.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8321087
BMW 5 SERIES E60 ELECTRIC SEAT Height Adjust 0390203234 8321087
Promo price
€24.95
€23.70
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 8514735
BMW F20 F21 116d ed N47N 116HP Engine Control Unit Module ECU DDE 8514735 Manual
Promo price
€170.95
€102.57
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2045407435
Earth Ground Cable Mercedes W204 C207 W212 Line Strap Battery Lead A2045407435
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8506199-3
BMW E60 E61 LCI 520d Diesel N47 Engine ECU Kit DDE 8506199 CAS 3 + Key
Promo price
€170.95
€145.31
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A6519003403-2
Mercedes W906 314CDI OM651.955 143HP Engine Unit Module ECU Kit A6519003403
Promo price
€398.95
€239.37
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8353447
BMW E36 E38 Relay Two Pole Make Contact 8353447
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A4479060400
Mercedes W447 Fuse Relay Box Module Control Unit A4479060400
Promo price
€61.95
€37.17
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A1669008009
Mercedes GLE W166 Rear Door Wiring Control Module Right O/S Unit ECU A1669008009
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9308292
BMW 3 Series F30 F31 Battery Cable Wire Lead Positive Underfloor 9259326
Promo price
€70.95
€42.57
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 4M0907247
Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna 4M0907247
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A6269000000
Mercedes W205 C 200 d 626951 626.951 136HP Engine Unit ECU A6269000000 Automatic
€170.95
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 9866978
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9866978
€42.95
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8P0907357F
Audi S4 B7 Headlight Head Light Lamp Range Control Unit Module ECU 8P0907357F
€23.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8K0959793H
Audi A4 B8 A5 8T Door Module Control Front Unit ECU 8K0959793H
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. 9253477
BMW E92 ECU Body Control Module Junction Box L1 PL2RR JBBFE IIIR 9253477
Promo price
€56.95
€34.17
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 03G906018DN-2
Audi A3 8P 2.0 TDI 170HP BMN Engine Control Unit ECU 03G906018DN Automatic
€42.95
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9277202
Wiring Cable BMW F06 F12 F13 Electric Parking Hand Brake Handbrake Set 9277202
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A1668200075
Mercedes W205 Aerial Antenna Control Unit Keyless Go Entry A1668200075
€23.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9264571
BMW E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359264571 9264571
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9257426
Fuse Box Grouping BMW F10 F11 Fuse Placement Map Card Diagram 9257426
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 8483814
BMW G20 Starter Wiring Battery Alternator Cable Harness Loom 8483814
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6920469
BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6929556
BMW E65 E66 Driver's Seat Air Module Sensor Control Unit Module 6929556
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 1439743
BMW E46 X5 E53 E60 E65 X3 E83 Z4 E85 Z3 Cable Alternator Starter 1439743
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9160558
BMW 5 Series E60 E60N E61 E61N LCI Airbag ECU Control Unit Module
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9170452
BMW X5 Series E70 Footwell Light Control Module Unit LEAR FRM II NSW 9170452
Promo price
€132.95
€113.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2048208526
Mercedes W204 Parking Sensor Parktronic Display Control A2048208526
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2059006330
Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006330
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. A2129006429
Mercedes SLK R172 C207 Front Fuse Box Relay Control Unit SAM Module A2129006429
€227.95
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8573257-6
BMW F10 F11 520d Diesel N47N 184HP Engine Control Unit ECU DDE 8573257 Automatic
€89.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A2118705726
Air Module Mercedes W211 C219 Air System Control Unit ECU A2118705726
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 7627023
BMW F20 F21 F30 Petrol N13 Automatic Gearbox Engine Sensor Module 1 Wiring
Promo price
€66.95
€56.91
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6915327-1
BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 2x Relay Make Contact Sky Blue 6915327
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-40%
Part no. A2049006301
Mercedes W204 Rear SAM Module Fuse Box Control Unit A2049006301
Promo price
€47.95
€28.77
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6942912-1
BMW E81 E82 X1 E84 E87 E90 E91 E92 Power Distribution Box Black 6942912
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 8617778
Earth Ground Cable BMW i3 I01 Hybrid Rex Electric Engine Wiring 8617778
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 8512415-5
Mini Cooper D R56 LCI N47N 112HP Engine ECU Kit DDE 8512415 CAS3 Key Automatic
€275.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. A0038208426
Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9274428
Mini Cooper F54 F55 F56 F57 F60 PDC Parking Sensor Ultrasonic Black 9274428
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 6950525
BMW 3 6 Series E63 E64 E93 DWA Alarm System Module Unit 65756950525 6950525
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
Part no. 04E903021M
Skoda Rapid NH1 1.4 TSI Petrol Alternator Generator Bosch 04E903021M
€37.95
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9268336
BMW MINI Clubman R55 R55N LCI Cable Adapter Lead Sensor Side Airbag 9207117
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9118468
BMW X5 X6 Series E70 E71 Seat Backrest Adjustment Adapter Lead Cable 9118468
Promo price
€27.95
€26.55
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9335243
Head-Up Display Mini Cooper F54 F55 F56 F57 Hud Project Dash Screen 9335243
Promo price
€189.95
€161.46
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A2229001414
Module Mercedes C205 Front Door Left N/S Control Module Unit A2229001414
Promo price
€28.95
€24.61
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. 9317173
BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V1 9317173
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-15%
Part no. A1775408312
Door Wiring Mercedes W177 W247 Driver Side Cable Harness Loom A1775408312
Promo price
€32.95
€28.01
Free delivery - Wed, Oct 08
If paid before 14:00
-5%
Part no. 9343304
BMW X5 F15 X4 F26 Antenna Aerial Diversity Trap Circuit Control Module 9343304
Promo price
€23.95
€22.75
Free delivery - Wed, Oct 08
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 .