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
-15%
Part no. 4H0907145
Audi A6 C7 Air Suspension Level Height Adjustment Module Control Unit 4H0907145
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0971845A
AUDI A5 8T 2.0 TDI CGLC Fuse Relay Box Power Distribution 8K0971845A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0907064EB
Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4G8959792G
Audi A6 C7 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 03L911024B
Audi A6 C7 2.0 TDI CGLC Diesel Starter Motor 03L911024B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4G0971845A
Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A
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€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4G0907637H
Audi A6 C7 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H
Promo price
€75.95
€64.56
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4H0959655C
Audi A6 C7 2.0 TDI SRS Air Module Control Unit Sensor ECU 4H0959655C
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€42.95
€36.51
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03L906018LA-1
Audi A6 C7 2.0 TDI CGLC 177HP Engine Unit ECU Kit 03L906018LA 2 Keys Ignition
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4G0906093F
Audi A6 C7 Fuel Pump Control Unit Module 4G0906093F
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4G0937517
Audi A6 C7 Fuse Battery Junction Box Fuse Distribution Terminal Centre 4G0937517
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4G0035223C
Audi A6 C7 Audio Sound System Amplifier Bose 4G0035223C
Promo price
€75.95
€64.56
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959663F
Audi A6 C7 Voltage Converter Stabilizer Control Module Unit ECU 8K0959663F
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€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4G0035061N
Audi A5 8T Stereo DAB CD Player Radio Receiver Head Unit 4G0035061N
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 8K0907064JE
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064JE
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€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 8R0907468N
Audi A5 8T Gateway Control Module Unit ECU 8R0907468N
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8T0959792Q
Audi A5 8T Front Door Control Module Passenger Side 8T0959792Q
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2229009708
Mercedes W205 Body Control Comfort Unit Module BCM Unit ECU A2229009708
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 04E0919064
Audi A8 D3 Door Lightning Module Control Unit Front Rear 04E0919064
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A1644406532
Mercedes ML W164 Diesel OM629 Wiring Alternator Starter Harness A1644406532
Promo price
€61.95
€37.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A9079001605
Mercedes W907 Central Gateway Control Unit Module Relay ECU A9079001605
€465.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03D971595CJ
VW Volkswagen Fox 5Z 1.2 CHFB Engine Wiring Loom Harness Cable Loom 03D971595CJ
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 059911021C
Audi A4 B8 3.0 TDI CAPA Diesel Starter Motor 059911021C
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2055400555
Mercedes W205 Door Electrical Wiring Harness Front Left N/S A2055400555
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8380944-1
BMW E46 E65 E66 E67 Aerial Antenna Amplifier Radio Signal Trap Circuit 8380944
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4FO903291
Audi A6 C6 2.0 TDI Relay Condenser 4FO903291
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9289385
BMW F10 F34 GT Telematics Module Bluetooth Telematik Control Unit 9289385
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9367693
BMW M5 F90 G11 G12 Power Distribution Relay Fuse Box Make Contact 9367693
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0919275B-BLK
Audi Q2 GA Front Parking Sensor Assist Control Module Black 5Q0919275B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A2048205189
Mercedes-Benz C-Class W204 Aerial Antenna Amplifier Unit A2048205189
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03L906018RC-1
Audi Q3 8U 2.0 TDI CFGC Quattro Engine ECU Kit 03L906018RC Ignition + Key Manual
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 3428557
BMW Z4 E86 Alarm System Ultrasonic Roof Control Module 3428557
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8U0907468Q
Audi Q3 8U Gateway Control Module Unit ECU 8U0907468Q
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 079911021D
Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 2GA035284B
Audi Q2 GA Online Services Control Module ECU Unit 2GA035284B
€142.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A6396890379
Mercedes Viano Vito W639 Radio Fan Adapter Control Unit Module A6396890379
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 05E907309CB
Audi Q2 GA 35 TFSI 1.5 DXDB Engine ECU Kit Ignition + Key 05E907309CB Manual
Promo price
€332.95
€199.77
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8Y0035465A
Audi Q2 GA Harman Speaker Amplifier Booster Sound System 8Y0035465A
Promo price
€146.95
€124.91
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A1715451332
Mercedes SLK R171 Parking Distance Aid Sensor Control Unit Module A1715451332
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. A0009008718
Climate Control Module Mercedes W205 W213 Air Conditioning A/C Unit A0009008718
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0035420419
Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Black A0035420419
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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, Oct 07
If paid before 14:00
-40%
Part no. 3Q0907338P
Audi Q2 GA Headlight Light Headlamp Lamp Control Module Unit ECU 3Q0907338P
Promo price
€104.95
€62.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 5QF959655BQ
Audi Q2 GA Air Module Control Unit 5QF959655BQ
Promo price
€218.95
€131.37
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 5Q1937084C
Audi Q2 GA Module BCM Body Control Unit Module ECU 5Q1937084C
Promo price
€127.95
€76.77
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 5WB959107B
Audi Q2 GA Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7367747
Promo price
€70.95
€42.57
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0919275B-AGR
Audi Q2 GA Front Parking Sensor Assist Control Module Arrow Grey Z7W 5Q0919275B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 3WA959354
Audi Q2 GA Impact Crash Control Sensor Module ECU 3WA959354
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 3Q0907530BB-1
Audi Q2 GA Central Gateway Control Unit Module Relay ECU 3Q0907530BB
Promo price
€99.95
€59.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 7678321
BMW X4 F26 Harness Wiring Cable Loom 7678321 767832-113
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9306220
Telematics Module BMW F10 F20 F30 F31 Bluetooth Teleservices GPS 9306220
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8P4963553
Audi A3 8P Front Seat Occupation Sensor Left Right N/O/S 8P4963553
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 04L911021
Audi A5 8T 2.0 TDI CNHA Diesel Engine Motor Starter 04L911021
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8K0907063DH
Audi A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063DH
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959655N
Audi A4 B8 A5 8T Air Module Control Unit ECU 8K0959655N
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8R0907468AE
Audi A5 8T 2.0 TDI Gateway Control Module Unit ECU 8R0907468AE
Promo price
€99.95
€59.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 02Z911024L
VW Volkswagen Golf Mk7 1.6 TDI CLHA Diesel Engine Starter Motor 02Z911024L
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0959392D
VW Volkswagen Golf 7 Front Door Control Module Passenger Side Unit 5Q0959392D
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8T0907468H
Audi A4 B8 Gateway Interface Control Module Unit ECU 8T0907468H
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A6461505072-1
Mercedes W211 E220 CDI 646.821 170HP Engine ECU Kit A6461505072 Ignition + Key
Promo price
€237.95
€142.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0907064C
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2118704026
Mercedes W211 Door Module Rear Left N/S Control Unit ECU A2118704026
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8P0959655P
Audi A3 8P Air Module Control Unit ECU Module 8P0959655P
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8H0035411D
Audi A3 8P Door Card Speaker Rear Left Right N/O/S Audio Speaker 8H0035411
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03C903024F
Alternator Audi A3 8P VW Passat B7 Engine Generator 1.4 TSI 03C903024F
Promo price
€94.95
€56.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03C972619CG
VW Passat B7 Engine Wiring Loom Cable Harness Injector Module Petrol 03C972619CG
Promo price
€104.95
€62.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9282285
BMW X3 F25 Central Gateway Module Control Unit ECU 9282285
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8P0906131A
Audi A3 8P Engine Unit Bracket ECU Module Holder Bracket Mount 8P0906131A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1K0907530K
Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0907539
Audi A5 S5 8T Dashboard Sunlight Solar Sun Sensor 8K0907539
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 6851284
BMW X3 F25 ICM Control Unit Air Module SRS ECU 6851284
Promo price
€156.95
€133.41
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A4475408347
Mercedes Vito W447 OM622 Engine Starter Wiring Harness A4475408347
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8T0959792D
Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0971104
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 443937105B
VW Volkswagen Audi Skoda Seat Little Fuse Amp 30A 12V 443937105A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5N0971228F
Audi Q3 8U Battery Positive Terminal Cable Plus Pole Wiring Harness 5N0971228F
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 02E911024C
Starter Motor Audi Q3 8U Volkswagen Passat B7 Engine Starter Actuator 02E911024C
Promo price
€47.95
€40.76
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0906121M
Audi Q3 8U 2.0 TDI CUWA Fuel Pump Relay Control Unit Module ECU 5Q0906121M
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. A0009822923-1
Mercedes W177 W205 W247 Relay Fuse Unit Module 4 Pins Grey SET X2 A0009822923
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8639582
BMW F20 M135i F22 M235i F30 335i N55 Engine Unit ECU DME 8639582 Automatic
Product currently unavailable
-15%
Part no. 8579479-4
BMW F20 F21 F30 F31 118d 318d N47N Engine Control Unit ECU DDE 8579479 Manual
Promo price
€66.95
€56.91
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 04L907309K-1
Audi Q3 8U 2.0 TDI Quattro Engine ECU Kit 04L907309K Ignition + Key
Promo price
€161.95
€97.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8U0907468AC
Audi A1 8X Q3 8U Central Gateway Control Unit Module Relay ECU 8U0907468AC
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 5M0907357G
Audi Q3 8U Headlight Range Control Unit Module ECU 5M0907357G
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 9X2Q9A361CA
Range Rover L320 Sport Rear Fuel Pump Control Unit Bracket Holder 9X2Q9A361CA
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8X0959795C
Audi Q3 8U Door Module Rear Left Door Control Unit 8X0959795C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8X0959792H
Audi Q3 8U Door Module Front Door Left N/S Control Module 8X0959792H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8U0971104C
Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104C
Promo price
€42.95
€25.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A2125420018-TNG
Mercedes W204 Parking Sensor PDC Distance Front Tenorite Grey - 755 A2125420018
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. A0025421119-1
Relay Unit Mercedes W163 W168 W203 W211 4-Pin Black Hella A0025421119 Set 2x
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8P0035399B
Audi A3 8P Speaker Tweeter Front Left Right N/O/S Pillar A 8P0035399B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. A2701504400
Mercedes W176 M270 Petrol Engine Wiring Harness Loom Cable A2701504400
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8P3971085
Audi A3 8P Rear Bumper PDC Wiring Parking Sensor Loom Harness 8P3971085
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 03C906027DA-1
VW Volkswagen Touran 1T 1.4 TSI CAVC Engine ECU Kit Ignition 03C906027DA + Keys
€237.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 0AM911023T
Volkswagen Touran 1T 1.4 TSI Petrol Engine Starter Motor 0AM911023T
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 9166542
BMW E92 HDD Navigation Reader System Module Unit ZB CE3 Navi JAPAN 9166542
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0959593F
Volkswagen Golf Mk8 Door Module Front Right O/S ECU Control Unit 5Q0959593F
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8626472
BMW F20 F21 M135i N55 231HP Petrol Engine Control Unit ECU DME 8626472 Manual
Product currently unavailable
-5%
Part no. 7839662
BMW E90 E92 E93 LCI Cable Alternator Starter Base B 7839662
Promo price
€23.95
€22.75
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 .