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. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6934095
BMW 7 Series E65 E66 Door Wiring Harness Rear Right Left N/O/S
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6907520
BMW 5 X5 Series E39 E53 Dual Band Cable Compensator Hands Free Phone 6907520
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9305736
BMW X1 E84 ECU Body Control Module Junction Box H2 PL2RR JBBFE IIIR 9305736
Promo price
€61.95
€37.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 02M911024J
Volkswagen Golf 7 Audi A1 A3 Seat Ibiza Petrol Engine Starter Motor 02M911024J
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 2Q0980653G
Audi Q2 GA Front Camera Module Lane Assist Control Unit 2Q0980653G
Promo price
€56.95
€48.41
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9280186-1
BMW F10 F11 F30 F01 F02 LCI Air Control Module ECU Unit 9280186
Promo price
€23.95
€22.75
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Part no. 6772102
BMW X5 X6 E70 E71 Holder Bracket Actuator Unit 6772102
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€23.95
€22.75
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-40%
Part no. 8576341-7
BMW F20 F21 F30 F31 116d 316d 116HP N47N ECU Kit DDE 8576341 + Key + FEM
Promo price
€227.95
€136.77
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 6995617
BMW F40 F44 G20 G21X5 G05 X6 G06 Immobilizer Emergency Start Coil 6995617
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9185734
BMW F10 F11 F12 X3 F25 Battery B+ Engine Compartment Terminal Point 9185734
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
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-15%
Part no. 8P0907063A
Audi A3 8P BCM Body Control Unit Comfort Module 8P0907063A
Promo price
€94.95
€80.71
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2035402206
Mercedes W203 Diesel Engine Starter Alternator Electrical Cable A2035402206
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€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 5Q0907530AH
Audi A3 S3 RS3 8V Gateway Control Module GW MQB Mid Unit ECU 5Q0907530AH
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9146330
BMW X5 E60 E65 E70 Front Right Seat O/S Height Adjustment Drive
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 7638322-2
Mini One R56 LCI N16 98HP Engine ECU Kit DME 7638322 + CAS3 + Key Automatic
Promo price
€341.95
€205.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1698201585
Mercedes W245 ECU Control Unit Sensor Air Module A1698201585
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

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Part no. A2469067100
Mercedes W176 W246 C117 Fuse Relay Box Control Unit Module A2469067100
Promo price
€37.95
€32.26
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1725400035
Electrical Cable Mercedes R172 Transmission To Body Wiring Harness A1725400035
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9145349
BMW 3 5 X3 X5 Series E39 E46 E53 E83 Control Unit Control Unit EWS IV 9145349
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 6857300
Air Module BMW F01 F02 LCI F10 F11 F13 ICM Crash Control Unit ECU 6857300
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2198202026
Door Module Mercedes C219 Front Door Right O/S Control Unit A2198202026
Promo price
€61.95
€37.17
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A1665450403
Mercedes W166 Junction Fuse Box Cover Housing Positive Terminal A1665450403
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9259800
BMW F10 F12 F13 F20 F30 F06 Mini F55 F56 F57 DVD CD Changer Control Unit 9259800
Promo price
€66.95
€40.17
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9252640
Mini Cooper R55 R56 R57 R60 R61 Control Unit PDC Parking Sensor Module 9252640
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8586573
BMW F20 F30 LCI Wiring Harness Engine Gearbox Module 120dX 320dX B47 8586573
Promo price
€165.95
€99.57
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A6519007500-16
Mercedes W204 C220 CDI 651.911 Engine Control Unit ECU A6519007500 Automatic
Promo price
€42.95
€36.51
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 7237647
BMW E90 LCI F01 F10 F11 F20 F21 Control Unit Xenon Light 7237647
€23.95
Free delivery - Tue, Nov 04
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 - Tue, Nov 04
If paid before 14:00

-5%
Part no. 90589541
Vauxhall Opel Astra G Fuse Box Covering Trim Panel Lid Housing 90589541
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A6421508900-7
Mercedes X218 CLS 350CDI OM642.853 Engine Control Unit ECU Kit A6421508900 Key
Promo price
€284.95
€242.21
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00

-5%
Part no. 8379766
BMW E65 E90 E91 E92 E93 Auto Boot Release Switch Tailgate 8379766
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 8046454
BMW E81 E82 E87 E90 PDC Ultrasonic Sensor Front Rear Melbourne Red - A75 8046453
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1635409008
Mercedes-Benz M ML W163 Radio Aerial Antenna Amplifier Wiring Loom A1635409008
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 9131643
BMW E87 E90 E92 Seat Wiring Cable Front Right O/S Heating Loom Harness 9131643
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9177978
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9177978
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8576484
BMW X3 G01 G20 G21 G30 G31 Starter Acoustic Vibration Plug 8576484 8588900
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9470037
Differential Locking Module BMW F40 F48 Rear Axle Control Unit ECU 9470037
Promo price
€75.95
€45.57
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 7809196
BMW X3 E83 LCI 2.0d N47 177HP Engine ECU Control Unit Module DDE 7809196 Manual
Promo price
€165.95
€99.57
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 307873750AA
Mercedes W176 Steering Wheel Wiring Loom Harness 307873750AA
€32.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 80A907777N
Audi Q5 FY Active Suspension Module Damping Chassis Control Unit EFP 80A907777N
Promo price
€284.95
€242.21
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 05L907309
Audi A4 B9 A5 F5 30 TDI DTNB 136HP Engine Control Unit ECU 05L907309 Automatic
Promo price
€284.95
€170.97
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8685853
BMW F40 X1 F48 Mini F55 F56 F60 Engine Injector Wiring Loom Harness 8685853
Promo price
€85.95
€51.57
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 7316535-3
BMW F06 F13 Sliding Sunroof Drive Motor Unit Webasto 7316535
Promo price
€47.95
€40.76
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8510284
Engine Wiring Loom BMW F30 F31 F32 330d 430d N57N Gearbox Module Harness 8510284
Promo price
€47.95
€40.76
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1715400406
Mercedes SLK R171 Window Lifter Lift Mechanism Cable Wiring Harness A1715400406
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A1175401205
Mercedes C117 Drivers Door Wiring Harness A1175401205
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A2059008826
Mercedes C205 SAM Module Rear Comfort Control Unit ECU A2059008826
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2129004203
Mercedes W212 Boot Lid Control Unit Trunk Lid Module A2129004203
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8779030
BMW G30 G31 Body Control Comfort Module Unit FEM ECU V05 8779030
Promo price
€569.95
€341.97
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A2078201989
Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit A2078201989
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 038971803
Volkswagen VW Caddy 2K Injector Wiring Harness Loom 038971803
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6945072
BMW E90 E91 E92 Bracket CD Changer Holder Amplifier Mounting 6945072
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
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 - Tue, Nov 04
If paid before 14:00

Part no. A1648202679
Mercedes ML W164 Radio Player Audio Stereo CD Player Head Unit A1648202679
€284.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6933267
BMW 7 Series E65 E66 E67 Control Unit Door Front Passenger Side 6933267
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8517862-5
BMW F10 F20 F30 520d 120d 320d N47N 184HP Engine Unit ECU DDE 8517862 Automatic
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00

-5%
Part no. 6972611
BMW 5 Series E60 E61 Wiring Rear Left Right Door Cable Harness N/O/S 6982362
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A1635402333
Mercedes-Benz M ML W163 Centre Console Wiring Harness Cable Loom A1635402333
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 2100493N
Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 2100493N
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A2125400450
Fuse Box Mercedes W212 Battery Terminal Control Unit Module A2125400450
Promo price
€37.95
€32.26
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8385987
BMW X5 E53 Support Bracket Navigation Computer 8385987
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 5WA962133E
Volkswagen Golf 5G Keyless Entry Module Aerial Antenna 5WA962133E
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9488418
Adblue Module BMW G20 G21 G30 G31 X3 G01 Control Unit ECU SCR 9488418
Promo price
€42.95
€25.77
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8P0907063AD
Audi TT 8J Body Comfort Control BCM Module Unit ECU 8P0907063AD
Promo price
€142.95
€121.51
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A1775405501
Mercedes W177 Door Harness Loom Cable Wiring Rear Left Right N/O/S A1775405501
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8370933
BMW 3 5 6 Series E60 E61 E63 E90 Support Bracket Navigation Computer 8370933
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A0009061004
Mercedes W213 C238 C257 Parking Brake Actuator Motor A0009061004
Promo price
€56.95
€48.41
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8K0959792J
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792J
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8506438-1
BMW E81 E87 LCI E90 E91 120d 320d N47 177HP ECU KIT DDE 8506438 CAS 3 Key
Promo price
€189.95
€113.97
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 9231091
Bluetooth Control BMW E60 E87 E90 Telematics Unit Module 9231091
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 6927705
BMW 5 Series E60 E60N E61 E61N Battery lead positive underfloor 80 MM² AL petro
Promo price
€66.95
€56.91
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 3412336
BMW X3 E83 Battery Cable Negative Wiring 3412336
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
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, Nov 04
If paid before 14:00

-15%
Part no. 8626472
BMW F20 F21 M135i N55 231HP Petrol Engine Control Unit ECU DME 8626472 Manual
Promo price
€189.95
€161.46
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. 8F0959255
Audi A5 8F Convertible Folding Roof Module Control Unit 8F0959255
€142.95
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 7605061
Alternator Generator BMW F10 F30 N20 Diesel Electrical Unit Denso 210A 7605061
Promo price
€66.95
€56.91
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 8573116
BMW 5 Series F10 F11 LCI B47 Cable Alternator Starter 8573116
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9115449
BMW X5 X6 E70 E71 Power Junction Box Positive Battery Cable Plus Pole 9115449
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 8W0959592E
Audi A4 B9 Front Door Control Module Unit Passenger Side ECU 8W0959592E
Promo price
€42.95
€25.77
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 9187647
BMW E82 E90 E92 LCI Antenna Amplifier Diversity 9187647
Promo price
€89.95
€53.97
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 8621486
BMW F20 F21 LCI F36 F87 M2 N55 Cable Alternator Starter Base B Wiring 8621486
Promo price
€37.95
€32.26
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 3414122
BMW X3 E83 Sensor Air Module Front Impact Crash Sensor 3414122
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 5QS919298
Audi A3 S3 8Y VW Caddy SB Mk4 Parking Sensor Module Control Unit 5QS919298
Promo price
€161.95
€137.66
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2469004519
Gearbox Module Mercedes W176 W246 Control Unit ECU Automatic A2469004519
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2218201811-2
Mercedes W221 Bluetooth Hands Free Mobile Phone Adapter Connector A2218201811
Promo price
€56.95
€34.17
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. 7801711-1
BMW X3 E83 2.0d M47N2 Engine Control Unit Module ECU DDE 7801711 Manual
Promo price
€227.95
€136.77
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6948689
BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6948689
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. A9079051202
Mercedes Sprinter W907 Battery Wire Negative Lead Cable A9079051202
Promo price
€28.95
€24.61
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. A2079059702
Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit Right O/S
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9229875
BMW 3 Series E90 LCI Body Control Module H1 PL2RR JBBFE IIIR 61359229875 9229875
Promo price
€75.95
€64.56
Free delivery - Tue, Nov 04
If paid before 14:00

Part no. A1694710141
Mercedes W169 W245 Fuel Pump Cable Harness Bracket Mount Trim A1694710141
€23.95
Free delivery - Tue, Nov 04
If paid before 14:00

-5%
Part no. 6911003
BMW 1 3 X1 X3 X5 X6 SERIES E81 E82 E84 E87 E88 E90 Accelerating Sensor 6911003
Promo price
€23.95
€22.75
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 7556846
Battery Cable BMW E82 E90 E91 E92 N54 Alternator Starter Base B Cable 7556846
Promo price
€32.95
€28.01
Free delivery - Tue, Nov 04
If paid before 14:00

-15%
Part no. 9231321-1
BMW X3 F25 X4 F26 Dashboard Monitor Onboard Central Display Screen 6,5" 9231321
Promo price
€42.95
€36.51
Free delivery - Tue, Nov 04
If paid before 14:00

-40%
Part no. A2601503100
Mercedes W177 M260 Petrol Engine Wiring Cable Loom Harness A2601503100
Promo price
€189.95
€113.97
Free delivery - Tue, Nov 04
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, 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 .