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
-40%
Part no. 6986987
BMW Z4 Series E85 Cable Loom Passenger's Door Wiring Harness 6986987 6986982
Promo price
€56.95
€34.17
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 6C11-3C190-AB
Ford Transit MK7 Yaw Sensor ESP Rotation Rate Control Unit Module 6C11-3C190-AB
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 7181313
BMW X1 E84 E90 E91 Door Handle LED Light Lighting Left N/S 7181313
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 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 - Fri, Nov 07
If paid before 14:00
-5%
Part no. 6958526
BMW 5 X5 X6 Series E60 E61 E70 E71 F07 F10 F11 Seat Adjustment Switch Right O/S
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
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Part no. 3402862
BMW X3 E83 LCi Earth Cable Flow Electric Battery Negative
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 8T0035223AH
Audi A4 B8 8K A5 8T Amplifier Audio Sound Booster Module 8T0035223
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2035451303
Mercedes CL203 W203 Fuse Box Cover Engine Bay Relay A2035451303
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 4L0971104S
Audi Q7 4L Rear Bumper Wiring Loom PDC Harness Parking Sensor 4L0971104
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
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Part no. A2229063202-1
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063202
Promo price
€23.95
€22.75
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If paid before 14:00
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Part no. A2229063701
Fuse Box Mercedes W205 W222 Electrical Relay Box Module Unit A2229063701
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
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Part no. P0148459-BRG1
Mini Cooper One R50 Fuel Filler Cover Flap British Racing Green A67
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 6850783
BMW F01 F02 LCI F06 F10 F11 F13 ECU ICM Control Unit Module Airbag 6850783
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
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Part no. 14B296AA
Ford Transit Connect Yaw Sensor ESP Speed Sensor Control Unit Module 14B296AA
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 9116542
BMW E39 X5 E53 X3 E83 PDC Parking Distance Control Unit Active Module 9116542
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. YC1E10K019BA
Ford Transit MK6 2.4 Diesel Alternator Bracket Mount Support YC1E10K019BA
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 7L0937401
Volkswagen Touareg 7L Positive Cable Battery Point Box Jump Unit 7L0937401
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 9321023
BMW F45 X1 F48 Mini F55 F56 B+ Junction Terminal Power Distribution Box 9321023
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
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Part no. A4475408347
Mercedes Vito W447 OM622 Engine Starter Wiring Harness A4475408347
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2129001929
Mercedes W176 Keyless Control Module Unit ECU A2129001929
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 6958449
BMW 7 Series E65 E66 E67 Control Unit Door Rear Driver Side 61356958449 6958449
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 6928267
BMW E65 E66 E67 Gateway Sensor Air Module Control Unit 6928267
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2139003217
Gearbox Module Mercedes W177 W205 W213 Control Unit ECU Automatic A2139003217
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 3456397
MINI Cooper R58 R59 Aerial Antenna Amplifier Module Rod 3456397
Promo price
€66.95
€40.17
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2125458040
Bracket Holder Mercedes W204 W212 W222 Auxiliary Generator Battery A2125458040
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2059006330
Mercedes W205 SAM Module Front Body Comfort Control Unit ECU A2059006330
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. A2661538979-1
Mercedes W169 A150 W245 B150 Engine Control ECU Kit A2661538979 + Key Automatic
Promo price
€265.95
€159.57
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2048704626
Door Module Mercedes W204 Rear Right O/S Control Unit Module A2048704626
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 6836210
Telematics Control Unit Mini F54 F55 F56 F57 F60 Module 84106836210 6836210
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 7220891
BMW E91 LCI Control Unit Module Support Plate Bracket Carrier Holder 7220891
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A9075406749
Mercedes W907 Battery Electrical Ground Line Wire Earth Cable A9075406749
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 6824386
Fuse Box Unit BMW F20 F22 F30 F32 Module ECU Control FEM 6824386
Promo price
€89.95
€53.97
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2075453840
Mercedes-Benz E W207 Cabrio A207 Exhaust BlueTec Control Unit Module Bracket
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 5A0FAD6
BMW i4 G26 Hybrid Electric Earth Ground Cable Negative Battery Lead 5A0FAD6
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 6778809
Mini Cooper One R55 R56 R57 Xenon Headlight Level Sensor 6778809
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 1K0907655D
VW Touran 1T Yaw Sensor ESP Rotation Rate Control Unit Module 1K0907655D
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 8055326
BMW 3 4 Series F80 M3 F82 M4 LCI Fuel Tank Heat Insulation Plate 8055326
Promo price
€61.95
€37.17
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 9231442
BMW 2 3 4 Series F22 F30 F32 F36 Antenna Suppression Filter Aerial 9231442
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 8385157
BMW X3 E46 E83 LCI Start Point Housing Bracket Base B 8385157
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A1695457740
Mercedes-Benz A B W169 W245 Bracket Starter Alternator Control Unit A1695457740
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 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 - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2128204926
Mercedes W212 Crash Impact Air Module Sensor Front Unit A2128204926
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 4H0907705K
Audi A8L 4H Steering Angle Steering Wheel Column Control Module ECU 4H0907705K
Promo price
€32.95
€28.01
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. A2075405105
Mercedes W204 C207 W212 Panoramic Sunroof Wiring Cable Harness A2075405105
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 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 - Fri, Nov 07
If paid before 14:00
-15%
Part no. A0141540402
Alternator Mercedes W164 OM272 Engine Alternator 180A 14V Valeo A0141540402
Promo price
€75.95
€64.56
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 9284974
BMW F10 F11 On-board Central Information Display Screen Monitor 10,25" 9284974
Promo price
€113.95
€96.86
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 5C0959655B
Volkswagen Golf Mk6 VI Air Module Control Unit ECU 5C0959655B
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 3456588-1
Mini R57 LCI Footwell Light Module Unit High EKS ECU PL3 FRM3R Lear 3456588
€180.95
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 6925936
BMW 5 Series E60 E61 Wiring Loom Harness Co-Drivers Passenger Side 6925936
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2118209126
Mercedes-Benz C E Class W203 W211 Alarm Anti Theft System Control Module Unit
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 8379375
BMW X5 Series E53 Loudspeaker Loud Speaker Tweeter Front 65138379375 8379375
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 9261580-GSB
BMW F20 F21 F30 F31 PDC Parking Sensor Ultrasonic SET x2 Glacier Silber - A83
€23.95
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A1695453740
Mercedes-Benz A-Class W169 Fuse Box Unit Holder Bracket Frame A1695453740
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 9119495
BMW E92 ECU Body Control Module Junction Box L1 PL2 JBBFE 9119495
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 9252331
BMW F10 ECU Body Control Module Junction Box V2 PL6 JBBFE III 9252331
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 06N907309A-1
Audi A4 B9 8W 35 TFSI DMSB 150 HP Engine ECU Kit Body + Key 06N907309A Automatic
Promo price
€379.95
€227.97
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. A0131546802
Alternator Generator Mercedes W204 W212 OM651 14V 180A Engine Electrical Unit
Promo price
€66.95
€56.91
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. A2075401650
Mercedes W204 Fuse Prefuse Box Relay Electrical Control Unit A2075401650
Promo price
€61.95
€37.17
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 8576333-1
BMW F10 F11 520d X3 F25 20dX N47N 184HP ECU Kit DDE 8576333 Key CAS4 Automatic
Promo price
€218.95
€131.37
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 8E0035456C
Audi A4 B7 Telephone Aerial Antenna Signal Amplifier Module 8E0035456C
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A0045468240
Distributor Box Mercedes W204 W212 W906 Front Block Control Unit A0045468240
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. A0009060401
Mercedes W204 OM651 14V 150A Alternator Generator Engine Start/Stop A0009060401
Promo price
€56.95
€48.41
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 8W6971104A
Audi A5 F5 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8W6971104A
Promo price
€32.95
€28.01
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 9380323
BMW 5 Series F10 Steering Column Module Electronic Control Unit ECU 9380323
Promo price
€66.95
€40.17
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. A1679008812
Seat Module Mercedes W167 W177 W247 Control Unit ECU A1679008812
Promo price
€47.95
€40.76
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. A1725402513
Mercedes SLK R172 Rear Window Heating Cable Loom Heat Wiring Harness A1725402513
Promo price
€56.95
€34.17
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 9360357-1
Door Wiring Mini F55 F56 R60 Rear Right Left N/O/S Harness Loom Cable 9360357
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 8W1907063AG
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063AG
€284.95
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 9259466
BMW 1 3 4 Series F20 F21 F30 F31 F32 Power Distribution Fuse Box Rear
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 8636069
BMW F20 F30 LCI B48 Engine Gearbox Module Wiring Cable Loom Harness 8636069
Promo price
€85.95
€51.57
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 8574351
BMW X1 E84 16d 18d 18dX Diesel N47N Engine Control Unit ECU DDE 8574351 Manual
Promo price
€94.95
€80.71
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 9117847
PDC Module BMW F45 X3 F25 Mini F55 F56 Parking Distance Sensor Unit 9117847
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 8514735
BMW F20 F21 116d ed N47N 116HP Engine Control Unit Module ECU DDE 8514735 Manual
Promo price
€170.95
€102.57
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. A0015453716
Mercedes C209 Engine Kompressor 5 Speed Gearbox GSG Module Control A0015453716
Promo price
€47.95
€28.77
Free delivery - Fri, Nov 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 - Fri, Nov 07
If paid before 14:00
-40%
Part no. 7581848-1
BMW E81 E87 LCI E90 116i 316i N45N ECU Kit DME CAS3 + Key 7581848
Promo price
€455.95
€273.57
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 8U0955559B
Audi A5 8T Windscreen Rain Sensor Control Unit 8U0955559B
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 9343259
B+ Distribution Box BMW X3 F25 Battery Power Red Rear Control Unit 9206140
Promo price
€42.95
€36.51
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 3456421
Mini Roadster R59 Aerial Roof Antenna Base Module 3456421
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. A4479000900
Mercedes Vito W447 Air Module Control Unit ECU 4479000900
Promo price
€132.95
€113.01
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 37820-P73-013
Honda Integra Type R JDM DC2 Engine Control Unit Module ECU 37820-P73-013
Promo price
€379.95
€227.97
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A1729006008
Mercedes W204 W212 W176 Media Interface Control Unit Module A1729006008
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 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 - Fri, Nov 07
If paid before 14:00
-40%
Part no. A6519000601-1
Mercedes W906 313 CDI 651.955 129HP Diesel Engine ECU Key Lock Kit A6519000601
Promo price
€284.95
€170.97
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 9298959
BMW F20 F21 F30 F31 Rear Electronic Module Fuse Box Control Unit V2 REM 9298959
Promo price
€56.95
€34.17
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. A1719000000
Mercedes SLK R171 Roof Module Convertible Folding Top Control Unit A1719000000
€161.95
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 02M911023P
Audi Volkswagen Seat Skoda 2.0 TDI Diesel Starter Motor Engine Bosch 02M911023P
Promo price
€28.95
€24.61
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 8593105
BMW G30 G11 G14 Diesel B57 Wiring Glow Plugs Module Wiring Harness 8593105
Promo price
€32.95
€28.01
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 46859297
Citroen Relay III Air Module Sensor Control Unit ECU 12V 46859297
€165.95
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2059006013
Door Module Mercedes W205 Front Right O/S Door Control Module Unit A2059006013
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2049012604
Mercedes W204 Parking Control Unit Module ECU A2049012604
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. A2129006318
Door Module Mercedes W204 W212 Front Left N/S Control Unit Module A2129006318
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 07
If paid before 14:00
Part no. 9151978
BMW E60 E63 E64 E90 LCI Dashboard Dash Onboard Display Monitor Screen 8.8" CCC
€47.95
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. A2049003509
Mercedes W204 S204 Radio Head Unit Sat Nav CD Player 2049003509
Promo price
€51.95
€44.16
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. A6549003300
Mercedes W177 Glow Plug Relay Preglow Module Diesel OM654 A6549009900
Promo price
€42.95
€25.77
Free delivery - Fri, Nov 07
If paid before 14:00
-40%
Part no. 9331207
BMW F20 CD DAB Radio Bluetooth Head Unit 9331207
Promo price
€47.95
€28.77
Free delivery - Fri, Nov 07
If paid before 14:00
-15%
Part no. 6992830
BMW F10 F20 F30 Mini F55 F56 KaFAS Camera Front Control Unit Module ECU 6992830
Promo price
€32.95
€28.01
Free delivery - Fri, Nov 07
If paid before 14:00
-5%
Part no. 5293147
Relay Glow Littlefuse Mega Fuse 250 Amp 5293147
Promo price
€23.95
€22.75
Free delivery - Fri, Nov 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 .