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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Category
Subcategory
Condition
In Stock
Price
-40%
Part no. 03L906018JM-1
Audi Q5 8R 2.0 TDI CGLC Quattro 177HP Engine Control ECU Kit 03L906018JM Manual
Promo price
€237.95
€142.77
Free delivery - Tue, Oct 07
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
€284.95
€170.97
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 06H971627
Audi A5 8T 2.0 TFSI Petrol Fuel Injectors Wiring Cable Harness 06H971627
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0971230HH
Audi S3 8V Starter Alternator Wiring Harness 5Q0971230HH
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0971230FP
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230FP
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 8K0959793Q
Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793Q
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 03L906018KP
Audi TT 8J CFGB 2.0 TDI Quattro 170HP Engine ECU Kit 03L906018KP Automatic
€146.95
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If paid before 14:00
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Part no. 03L906022JM-1
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
Promo price
€146.95
€88.17
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 8T0862335A
Audi A4 B8 Bluetooth Interface Module Control Unit ECU 8T0862335A
Promo price
€51.95
€31.17
Free delivery - Tue, Oct 07
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, Oct 07
If paid before 14:00
-5%
Part no. 8K0959795A
Audi A4 B8 Rear Door Module Control Unit ECU Left N/S 8K0959795A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 4F0941824
Audi S6 C6 Wirie Cable Fuse Box Holder Support 4F0941824
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 03L906018KJ
Audi A4 B8 A5 8T 2.0 TDI CGLD Engine Control Unit ECU 03L906018JH Manual
Promo price
€94.95
€56.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4F0051510K
Audi Cable Adapter iPod Connection 4F0051510K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8R0907468F
Audi A5 8T Diagnostic Interface Gateway Control Module Unit ECU 8R0907468F
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03L906018LB
Audi A6 C7 2.0 TDI CGLC 177HP Engine Control Unit ECU 03L906018LA Automatic
Promo price
€75.95
€45.57
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4G0907468AB
Audi A6 C7 Gateway Module Control Unit ECU 4G0907468AB
Promo price
€89.95
€53.97
Free delivery - Tue, Oct 07
If paid before 14:00
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Part no. 4H0907064BN
Audi A6 C7 Saloon CCM Comfort Control Module Onboard Unit ECU 4H0907064BN
Promo price
€51.95
€31.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4G8959795J
Audi A7 4G8 Rear Door Module Control Module Unit Left Right N/O/S 4G8959795J
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4G8959107Q
Audi A7 4G8 Tailgate Lift Boot Lid Control Unit Module Trunk 4G8959107Q
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 079903021JX
Audi S8 D3 S6 C6 Alternator Water Cooled 190A 14V 5.2 FSI V10 079903021J
Promo price
€108.95
€92.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 06H903016L
Audi A5 8T Engine Alternator Generator 14V 140A Bosch 2.0 TFSI 06H903016L
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-15%
Part no. 04L906021BQ
Audi A4 B8 Engine Control Unit Module ECU 2.0 TDI CNHC 163HP 04L906021BQ
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0971230ES
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230ES
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0971250P
Audi S3 8V Battery Wire Cable Negative Earth Lead 95Q0971250P
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-15%
Part no. 83F971104F
Audi Q3 F3 Rear Bumper PDC Wiring Loom Cabling Parking Sensor 83F971104F
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8J0971226
Audi TT 8J Negative Battery Cable Lead 8J0971226
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8T0959795Q
Audi A5 B8 8T Door Module Control Unit Left Right N/O/S 8T0959795Q
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8K2907115Q-1
Audi A5 8T 2.0 TFSI CDNB 180HP Engine ECU Kit 8K2907115Q 2 Keys + Ignition
Promo price
€265.95
€159.57
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8T8035225C
Audi A5 8T Audio Radio Aerial Amplifier Control Unit 8T8035225C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0907064DC
Body Control Module Audi A4 B8 A5 8T BCM Comfort Control Unit 8K0907064DC
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8W9971104A
Audi S4 B9 Wiring Loom Set PDC Rear Complete Harness Parking Sensor 8W9971104A
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8T8971845
Audi A5 8T Fuse Box Relay Control Unit Module 8T8971845
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8H0951178
Audi A4 B7 Cabrio Alarm Signal Body Control Sensor Module Unit 8H0951178
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0959592K
Audi Q2 GA Door Module Control Unit Front Passenger Side 5Q0959592K
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0937084DR
Audi Q2 GA Body Control Comfort Unit Module BCM Unit ECU 5Q0937084DR
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 81A035035G
Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
Promo price
€807.95
€484.77
Free delivery - Tue, Oct 07
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, Oct 07
If paid before 14:00
-40%
Part no. 4G2907311C-1
Audi A7 4G8 3.0 TDI CRTE 218HP Quattro Engine ECU Kit 4G2907311C BCM2 + 2 Keys
Promo price
€664.95
€398.97
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W9971104M
Audi A4 B9 Rear Bumper PDC Parking Sensor Harness Wiring Loom Cable 8W9971104M
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W1907064BL
Audi A4 B9 Body Control Module BCM Comfort Control Unit Power Supply 8W1907064BL
Promo price
€189.95
€113.97
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 4M0959795N
Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 4G2971228DQ
Audi A6 A7 4G 3.0 TDI Starter Alternator Wiring Harness 4G2971228DQ
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0937084CJ
Audi A3 8V 1.6 TDI DBKA BCM Body Control Module Unit ECU 5Q0937084CJ
Promo price
€56.95
€48.41
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0959393B
Audi A3 8V Front Door Control Module Unit Right O/S 5Q0959393B
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4F0959795M
Audi A6 C6 Rear Door Left Right N/O/S Module Unit Control ECU 4F0959795M
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 4H0907355D
Audi A7 4G A8L 4H Ad Blue Control Module Unit ECU 4H0907355D
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4F0959795N
Door Module Audi A4 B8 A6 C6 Rear Unit Control ECU Left N/S 4F0959795N
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0959793E
Audi A4 B8 Door Module Front Drive Side Control Unit ECU 8K0959793E
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4H0907801H
Parking Brake Module Audi A6 C7 A7 4G A8 4H Handbrake Control Unit 4H0907801H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8W0959595H
Audi A5 F5 Rear Door Control Module Unit ECU Left Right N/O/S 8W0959595H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8X0959792F
Audi A1 8X Front Door Control Module Unit Passenger Side 8X0959792F
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 02M911021S
Audi TT FV Starter Motor Engine Diesel 02M911021S
Promo price
€37.95
€32.26
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W0907064EB
Audi A4 B9 2.0 TFSI DEMA BCM Body Control Module Unit ECU 8W0907064EB
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8W0959592H
Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Passenger Side 8W0959592H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8W0959593H
Audi A4 S4 B9 Front Door Control Module Unit Driver's Side 8W0959593H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 4G8971085DP
AUDI A6 C7 A7 FY Sensor Harness Installation PDC Radar 4G8971085DP
Promo price
€56.95
€34.17
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 059911024P
Audi A6 C7 A7 4G 2.0 TDI Starter Motor Diesel Engine Denso 059911024P
Promo price
€42.95
€25.77
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4L0971225D
Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 4L0919614B
Audi Q7 4L Navigation Multimedia Control Panel Knob Unit 4L0919614B
Promo price
€550.95
€330.57
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8W0959595M
Audi A4 B9 A5 F5 Door Module Rear Right Left N/O/S Control Unit 8W0959595M
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8K0907440
Audi Q7 4L GPS Tracking Location Control Unit Module Locator 8K0907440
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4F0910655Q
Audi A6 C6 4F Control Unit Air Module ECU Bosch 4F0959655G
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 4F9910402A-1
Audi A6 C6 3.0 TDI 240HP CDYA Quattro Engine ECU Kit 4F9910402A Ignition + Keys
Promo price
€284.95
€170.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8S0820047
Audi TT FV 8S A/C Air Condition Climate Control Module Unit ECU 8S0820047
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8S0035072A
Audi TT FV Dashboard Sat Nav Drive Unit MMI Multimedia Infortaiment 8S0035072A
Promo price
€379.95
€322.96
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 4H4907357E
Audi A6 C7 Front Lamp Headlight Control Module Unit ECU Controller 4H4907357E
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8U0955559
Audi A1 8X A3 8V Windscreen Rain Sensor Control Unit 8U0955559
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0915181H
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 03C906016BG-1
Audi A1 8X 1.4 TSI CAXA 122HP Engine Control Unit ECU Kit 03C906016BG BCM + Key
Promo price
€161.95
€97.17
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 1K0971235J
Audi A3 Volkswagen Golf Battery Wire Cable Negative Earth Lead 1K0971235J
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8X0959793D
Audi A1 8X Driver Side Door Module Front Control Unit Module ECU 8X0959793D
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 1K0971228N
Audi A3 VW Golf Caddy Battery Lead Positive Cable Plus Pole Wiring 1K0971228N
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
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 - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8V0035399C
Audi A3 8V A-Pillar Speaker Tweeter Front Left Right N/O/S 8V0035399C
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4H0959655H
Audi A7 4G8 Air Module Control Unit ECU SRS Module Unit 4H0959655H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 06K907425B-2
Audi TT FV 8S 2.0 TFSI CHHC 230HP Quattro Engine ECU Kit 06K907425B BCM Key
Promo price
€379.95
€227.97
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 4G8959793E
Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 4H0907063BA
Audi A6 C7 Onboard Supply BCM Body Control Module Unit ECU 4H0907063BA
Promo price
€32.95
€28.01
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 4G0907468F
Audi A6 C7 Central Getaway Control Unit Module ECU 4G0907468B
Promo price
€75.95
€64.56
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 4M0959651
Front Crash Impact Audi A4 B9 A5 F5 Air Module Sensor Unit 4M0959651
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8K0907063
Audi A4 B8 Body Control Unit Basic Module BCM 8K0907063
€23.95
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W8971687M
Audi A5 F5 Sportback Door Wiring Harness Loom Rear Left N/S 8W8971687M
Promo price
€47.95
€28.77
Free delivery - Tue, Oct 07
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
€351.95
€211.17
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0906093
Fuel Pump Control Audi TT FV A3 8V Petrol Engine Unit Module 5Q0906093
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8S0035021B
Audi TT FV Navi SD GPS MMI Multimedia Head Unit Module 8S0035021B
Promo price
€522.95
€444.51
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8X0959792K
Audi Q3 8U Front Door Module Control Unit ECU Passenger Side 8X0959792H
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
Part no. 8W0907159F
Audi A4 S4 B9 A5 S5 Impact Sound Actuator Control Module 8W0907159F
€37.95
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 5Q0959595E
Audi A3 8V Door Control Module Unit ECU Rear Left Right N/O/S 5Q0959595E
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 5Q0937615C-1
Audi TT FV Fuse Relay Box Module Electrical Control Unit 5Q0937615C
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
If paid before 14:00
-5%
Part no. 8S0915181A
Audi TT FV HV Battery Negative Terminal Cable Harness Loom Wiring 8S0915181A
Promo price
€23.95
€22.75
Free delivery - Tue, Oct 07
If paid before 14:00
-15%
Part no. 8S0820043
Audi TT FV A/C Air Condition Climate Control Module Unit ECU 8S0820043
Promo price
€28.95
€24.61
Free delivery - Tue, Oct 07
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, Oct 07
If paid before 14:00
-15%
Part no. 80A907159
Audi SQ5 FY Control Unit Module Active Sound Design 80A907159
Promo price
€85.95
€73.06
Free delivery - Tue, Oct 07
If paid before 14:00
-40%
Part no. 8W6907217B
Audi A5 F5 Front Windscreen Windshield Lane Assist Camera 8W6907217B
Promo price
€56.95
€34.17
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 .