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.
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Price
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Part no. 81A035502
Audi A3 8V Wireless Charger Centre Console Phone Charging Module Unit 81A035502
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4G0035666J
Audi RS6 C7 Head Unit High Multimedia Player CD SD Card Sat Nav 4G0035666J
Promo price
£446.95
£379.91
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5WA959655J
Audi S3 8Y Air Module Control Unit SRS System ECU 5WA959655J
Promo price
£56.95
£48.41
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8W0906259N-1
Audi A5 F5 45 TFSI DKNA 245HP Quattro Engine ECU Kit 8W0906259N Gateway + Key
Promo price
£284.95
£170.97
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 5K0962132A
Audi Q3 F3 Keyless Entry Amplifier Control Box Module Aerial Antenna 5K0962132A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8E0907307F
Audi A4 B8 Seat Exeo Servotronic Relay Control Unit 9 Pin 8E0907307F
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 06L907309
Audi A4 B9 2.0 TFSI DEMA 190HP Engine Control Unit ECU 06L907309 Automatic
Promo price
£94.95
£56.97
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 4F1971693D
Audi A6 C6 Rear Door Wiring Left Right N/O/S Harness Loom Cable 4F1971693D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 03G911023A
Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
£32.95
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0907357
Audi A3 8V Headlight Head Light Lamp Range Control Unit Module ECU 5Q0907357
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 3Q0907530BB-1
Audi Q2 GA Central Gateway Control Unit Module Relay ECU 3Q0907530BB
Promo price
£80.95
£68.81
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 8K0907247
Audi A6 4G Keyless Entry Amplifier Control Box Module Aerial Antenna 8K0907247
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 8P0959655S
Audi A3 8P Air Module Control Sensor SRS System ECU Unit 8P0959655S
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8K0959795G
Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795G
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8J0971035J
Audi TT 8J Driver's Side Door Card Wiring Loom Harness Cable 8J0971035H
Promo price
£61.95
£52.66
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 8W0941823F
Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
Promo price
£66.95
£40.17
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 06L971627M
Audi Audi Q5 FY 2.0 TFSI QUATTRO Petrol Fuel Injectors Wiring Harness 06L971627M
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 04C906026AK
Audi A1 8X 1.0 TFSI CHZB 95HP Engine ECU Kit 04C906026AK + Ignition + Key Manual
Promo price
£85.95
£51.57
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 7H0907652A
Audi Q7 4L Yaw Rate Speed Sensor Module 7H0907652A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 2GA035284B
Audi Q2 GA Online Services Control Module ECU Unit 2GA035284B
Promo price
£118.95
£71.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0907601E
Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8K0959793R
Audi Q5 8R Door Module Front Left N/S Control Unit ECU Controller 8K0959793R
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 8W0959593N
Audi A4 B9 Front Door Module Control Unit ECU Driver's Side 8W0959593N
Promo price
£32.95
£28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4H0035225
Audi A8L 4H Aerial Antenna Amplifier AMP Booster Module 4H0035225
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8P0959655D
Audi A3 8P Air Module Module Control Unit ECU 8P0959655D 0285001700
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
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Part no. 8P0035192SX
Audi A3 S3 8P Radio Media GPS Sat Audi Navigation Plus Unit 8P0035192QX
Promo price
£199.95
£169.96
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4M0959595N
Audi Q7 4M Rear Door Control Module Unit ECU Left Right N/O/S 4M0959595N
Promo price
£28.95
£17.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0971765
Audi A6 C6 Wing Mirror Adjustment Switch Wiring Loom Cable 4F0971765
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8K0959792
Audi A4 B8 Door Module Front Left N/S Control Unit Module ECU 8K0959792
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. RHD-8T2035195AB
CD Player Audio Audi A4 B8 A5 8T Stereo Radio Head Unit 8T2035195AB
Promo price
£66.95
£40.17
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 03L906018HS
Audi A1 8X 2.0 TDI CFHD 143HP Engine Control ECU Kit 03L906018HS Manual
Promo price
£142.95
£121.51
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 03L906018JR
Audi A4 B8 2.0 TDI CJCB 136HP Engine Control Unit Module ECU 03L906018JR Manual
Promo price
£56.95
£34.17
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0971235
Audi A6 C6 Negative Battery Terminal Cable Wiring 4F0971235
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1J0927841
Audi Volkswagen Seat Skoda ESP Relay Unit Grey 444 1J0927841
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. RHD-8J0959655
Audi TT 8J Air Module Control Unit ECU Crash Control Computer 8J0959655
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8X0971036J
Audi A1 8X Door Card Wiring Harness Cable Loom Front Passenger Side 8X0971036J
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0959593D
Audi TT FV A3 8V Door Module Control Unit Front Right O/S Side ECU 5Q0959593D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 81A955555B
Rain Sensor Audi Q3 RSQ3 F3 Front Windscreen 81A955555B
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5Q0937125A
Fuse Relay Box Volkswagen Audi Skoda Seat Engine Bay Supply Unit 5Q0937125A
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0959595B
Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595B
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8J0906331A
Audi TT 8J Engine Control Unit ECU Mount Bracket Holder 8J0906331
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4H0915181F
Audi A8L 4H Negative Battery Cable Lead 4H0915181F
Promo price
£70.95
£42.57
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 83A823531
Audi Q3 F3 Front Bonnet Hood Center Lock Bowden Cable 83A823531
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0959435B
Kessy Module Volkswagen Audi Skoda Seat Keyless Go Entry Control Unit 5Q0959435B
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8T0907217A
Front Camera Audi A4 B8 A5 8T Lane Assist Module Control Unit 8T0907217A
Promo price
£28.95
£24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8K1907115C
Audi A4 B8 1.8 TFSI CDHA 160HP Engine Control Unit ECU Kit 8K1907115C Manual
Promo price
£104.95
£89.21
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 06L903018H
Audi A4 B9 A5 F5 Alternator Generator Valeo 2.0 TFSI DDWA 06L903018H
£113.95
Free delivery - Wed, Oct 15
If paid before 14:00
-40%
Part no. 8K5907311-1
Audi A5 8T 3.0 TDI CLAB 204HP Engine ECU Kit Ignition + Key 8K5907311 Automatic
Promo price
£284.95
£170.97
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8W0959592N
Audi A4 B9 Front Door Module Control Unit ECU Passenger Side 8W0959592N
Promo price
£32.95
£28.01
Free delivery - Tue, Oct 14
If paid before 14:00
Part no. 3Q0959435F
Audi A3 S3 RS3 8V Entry Keyless Kessy Control Module Unit ECU 3Q0959435F
£23.95
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4F0880201
Audi A6 C6 FL Steering Wheel Air Module Driver's Side Black 4F0880201
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8K0919475AA
Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
Promo price
£113.95
£68.37
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8T0907468R
Audi A4 B8 Gateway Control Unit Module ECU 8T0907468R
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 81A941475
Audi Q2 GA Front Headlight Led Module Unit Left N/S 81A941475
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8W0907468C
Audi A4 B9 Body Gateway Module ECU Control Unit 8W0907468C
Promo price
£113.95
£68.37
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 04L907309R-2
Audi A3 8V 1.6 TDI 110HP DBKA Engine ECU 04L907309R Manual
Promo price
£28.95
£17.37
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4F7910401L-1
Audi A6 C6 2.7 TDI CANC Quattro 190HP Engine Control Unit ECU Kit 4F7910401L
Promo price
£237.95
£142.77
Free delivery - Wed, Oct 15
If paid before 14:00
-5%
Part no. 8E0907637B
Audi A6 C6 Yaw Module Rotation Rate Acceleration Sensor 8E0907637B
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8U0998572A
Audi Q3 8U Headlight Module LED Headlamp Control Unit 8U0998572A
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 059971627D
Audi A6 C7 High Pressure Pump Fuel Line Electrical Wiring Harness 059971627D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8K9035225D
Audi A4 B8 Antenna Amplifier Aerial Module Control Unit Left N/S 8K9035225D
Promo price
£37.95
£32.26
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8T0959792G
Audi A4 B8 Front Door Lock System Module Right O/S Control Unit ECU 8T0959792B
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8T0907468M
Audi A5 8T Central Gateway Module ECU Control Unit Lear 8T0907468M
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8K0907637C
Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8W0959655F
Audi A4 B9 Air Module Crash Control Module Unit ECU 8W0959655F
Promo price
£189.95
£161.46
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4F0959793T
Audi Q7 4L Door Module Front Driver's Side Control Unit ECU 4F0959793T
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1S0919275D-BLK
Audi Q3 8U PDC Parking Distance Control Sensor Black - Z9Y 1S0919275D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 06M907309G-1
Audi Q7 4M 3.0 TDI 340HP DCBD Quattro Engine Module ECU Kit 06M907309G Automatic
Promo price
£712.95
£427.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8P0035152E
Audi A3 8P Stereo Radio Audio CD Player Head Unit 8P0035152E
Promo price
£32.95
£19.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8K0959795C
Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5QA915181E
Audi Q3 RSQ3 F3 Negative Cable Battery Terminal Wiring Loom 5QA915181E
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8P0907530C
Gateway Module Audi A3 8P Control Unit Gateway Module ECU 8P0907530C
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4L0907289C
Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4G0907637L
Audi RS6 C7 Acceleration Yaw Rate Sensor Module Control Unit ECU 4G0907637L
Promo price
£32.95
£19.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8V0907159B
Audi A3 RS3 8V Impact Sound Actuator Body Control Unit Module ECU 8V0907159B
Promo price
£32.95
£19.77
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1K0907719C
Audi A3 8P Anti Theft Alarm System Control Module Unit ECU 1K0907719C
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 1K0907530D
Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530D
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8V0035398A
Audi A3 8V A-Pillar Speaker Tweeter Front Left Right N/O/S 8V0035398A
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 5Q0959595K
Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595K
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 3AA962243
Audi A8L 4H Tailgate Lift Boot Lid Control Unit Module Trunk 3AA962243
Promo price
£37.95
£22.77
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8U0971035AL
Audi Q3 8U Door Loom Wiring Harness Cable Front Right O/S 8U0971035AL
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 80A907159
Audi SQ5 FY Control Unit Module Active Sound Design 80A907159
Promo price
£42.95
£36.51
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 4H0919604H-2
Audi A8 4H Head Up Display Hud Project Screen Control Unit Module 4H0919604G
Promo price
£170.95
£102.57
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4L0907335
Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8X0907063AB
Audi A1 8X BCM Body Control Module Power Supply Unit 8X0907063AB
Promo price
£32.95
£28.01
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8U0971029AF
Audi Q3 8U Front Door Wiring Loom Harness Cable Driver's Side 8U0971029AF
Promo price
£28.95
£17.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. RHD-8R2035666G-1
Audi A4 B8 Navi CD Player Radio Sat Harman Head Unit Switch Panel 8R2035666G
Promo price
£123.95
£105.36
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8Y5971035E
Audi A3 8Y Front Door Card Wiring Harness Loom Cable Driver's Side 8Y5971035E
Promo price
£28.95
£24.61
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8W1959595
Audi Q5 FY Rear Door Control Module Unit Left Right N/O/S 8W1959595
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 8K0959795F
Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 8V0863051
Audi A3 8V AMP Amplifier Under Seat Cover Trim Panel Unit 8V0863051
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 038907281B-1
Audi A6 C6 Glow Plug Relay Unit Control Module Bosch 2.0 TDI 038907281B
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4L0971597
Audi Q7 4L Negative Battery Terminal Cable Wiring 4L0971597
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-40%
Part no. 8X0971845C
Audi A1 8X Fuse Box Relay Control Unit Module Bracket Holder 8X0971845C
Promo price
£23.95
£14.37
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5QA919294C
Audi Seat Skoda Volkswagen PDC Parking Sensor Control Unit Module 5QA919294J
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 4E0919887M
Sat Nav Audi S8 D3 A6 C6 DVD Drive Navigation Control Unit 4E0919887M
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-5%
Part no. 4B0959643E
Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 4B0959643E
Promo price
£13.95
£13.25
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 7N0907530AL
Audi TT 8J Gateway Control Unit Module 7N0907530AL
Promo price
£23.95
£20.36
Free delivery - Tue, Oct 14
If paid before 14:00
-15%
Part no. 5Q0937084AS
Body Control Audi A3 RS3 8V Body Control Comfort Unit Module ECU 5Q0937084AS
Promo price
£18.95
£16.11
Free delivery - Tue, Oct 14
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 .