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

Part no. 6927260
BMW E60 Seat Control Unit Module Left Right N/O/S Temic 6927260
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 7807827-1
BMW 1 3 Series E87 E90 LCI 120d 320d N47 Diesel ECU Kit DDE 7807827 CAS3 Key
Promo price
€170.95
€102.57
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9141048
BMW E60 E87 E90 E91 Hands-Free Electronics Charging MULF2 9141048
Promo price
€71.95
€43.17
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8408783
BMW X5 E53 Flap Radio Partition Mounting Part Cover Dashboard 8408783
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8594489
BMW X1 F48 Mini F55 F56 F57 Battery Cable Starter-Base B+ 8594489
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A0015424623
Mercedes A207 W204 W212 Front Parking PDC Display Panel A0015424623
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A1679003504
Ignition Switch Mercedes W177 Electronic Anti Theft Control Module A1679003504
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A0009001017
Mercedes S205 W205 Air Conditioning Control Module A/C ECU Unit A0009001017
Promo price
€33.95
€28.86
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 4F0919813E
Audi A4 B8 Chip Card Reader for Road Toll ETC Japan Module Unit 4F0919813E
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 4M0907247
Audi A4 B9 A5 F5 Keyless Entry Amplifier Control Box Module Antenna 4M0907247
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-5%
Part no. A6519064300
Mercedes W205 Diesel OM651 Engine Starter Motor Actuator Bosch A6519064300
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8622032
BMW F20 F21 F30 F31 LCI Control Unit Box Cover Mudguard Flap Cap 8622032
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 3456051
Mini Cooper R55 LCI Footwell Light Module High EKS ECU PL3 FRM3R 3456051
€170.95
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9248096
Air Module BMW F01 F02 LCI F06 F10 F11 F13 ECU Control Unit ECU 9248096
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2075403332
Convertible Cable Mercedes A207 C207 Roof Rail Wiring Harness A2075403332
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2749000800-1
Mercedes W205 C200 274.920 184HP Engine ECU Kit A2749000800 Key Lock Automatic
Promo price
€222.95
€189.51
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8578946-3
BMW F20 F30 F32 120d 320d 420d 184HP N47N Engine ECU Kit DDE 8578946 Automatic
Promo price
€142.95
€121.51
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 6777641
Air Module Wiring BMW X5 E70 E81 E87 E90 E91 E92 E93 Steering Wheel Loom
€28.95
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 7936364
Mini F55 F56 F57 Integrated Supply Module Z11 Control Unit Module 7936364
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7790996
Mini One D R50 W17 Base B+ Battery Terminal Point Engine Compartment 7790996
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7792130
BMW Mini Cooper One R50 R52 R53 R55 R56 R57 Earth Ground Cable 7792130
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 2755095
Mini Clubman R55 Amplifier Holder System HiFi Stereo Audio 2755095
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2078205489
Mercedes-Benz W207 A207 Left Right A-Pillar Radio Aerial Antenna Amplifier Unit
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. CC1T10300BB
Ford Transit Mk7 2.2 TDCi Diesel Engine Alternator Generator Unit CC1T-10300-BB
Promo price
€66.95
€56.91
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 7948144
BMW F40 F44 Seat Occupancy Mat Control Unit Sensor 7948144
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 7806976-1
BMW X5 E70 3.0d M57N2 235HP Engine Control Unit ECU KIT DDE 7806976 Automatic
€332.95
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6864923
Air Module BMW F01 F02 LCI F07 GT F10 F11 F13 ECU Control Unit 6864923
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9389560
Aerial Trap Circuit BMW G30 X3 G01 Antenna Amplifier Module Control Unit 9389560
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 31200-PSA-J52
Honda Civic Starter Motor Actuator Unit 12V 31200-PSA-J52
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9243896
Central Information Display BMW F10 F11 LCI Boardmonitor Screen 7" 9243896
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 6809051
BMW F20 LCI REM Rear Electronic Module Fuse Box Control 6809051
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2215406562
Mercedes W204 Petrol Fuel Pump Control Unit Module A2215406562
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9383695
BMW F10 Footwell Light Module Control Unit ECU FRM III TEMIC 9383695
Promo price
€51.95
€44.16
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A6394460132
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460132
Promo price
€284.95
€170.97
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A4479053905
Mercedes W447 Aerial Antenna Amplifier Control Unit Module A4479053905
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9367837
Air Module BMW F45 X1 F48 Mini F54 F55 F56 Air Control Unit ECU 9367837
Promo price
€170.95
€102.57
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9119444
BMW E81 E87 LCI E90 E91 E92 Front Fuse Box Power Distribution 9119444
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A1645453047
Mercedes ML W164 Trunk Tailgate Foam Control Unit Module Bracket A1645453047
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2469055003-1
Ignition Switch Mercedes W167 W177 W247 Lock Control Unit Module A2469055003
Promo price
€51.95
€44.16
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 6966925
BMW E60 E90 Dashboard Onboard Monitor Display Screen 8.8" 6966925
Promo price
€75.95
€45.57
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7534705
Mini R50 R52 Ground Battery Cable Alternator Starter 7534705
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 9137800
Mini Cooper One R55 R56 R57 Passenger's Door Harness Wiring Cables N/S 9137800
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9803029180
Peugeot Partner Citroen Berlingo Mk2 Wiring Cable Loom Diesel Engine 9803029180
Promo price
€42.95
€36.51
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 7L0909606C
Volkswagen Touareg 7L Front Impact Crash Sensor Right Left N/O/S 7L0909606C
€23.95
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2108208726
Mercedes-Benz W210 S210 Alarm Anti Theft System Control Module Unit A2108208726
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. A0131549002
Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A2465400335
Mercedes W176 W246 Negative Earth Cable Battery Terminal Wiring A2465400335
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2135403205
Lever Sensor Wiring Mercedes W213 C238 Rear Left Right N/O/S Cable A2135403205
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A4475406453
Battery Cable Mercedes Vito W447 Diesel OM651 Alternator Wiring A4475406453
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9281068
Antenna Receiver BMW F33 F83 M4 Convertible Aerial DAB Unit 9281068
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A9079009304
Mercedes Sprinter W907 Radar Sensor Distance Active Brake System A9079009304
Promo price
€56.95
€48.41
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9130879
BMW E81 E87 Battery Cable Plus Pole Positive Wire SBK 9130879 6988975
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6960259
BMW 1 3 SERIES E81 E82 E87 E90 E91 E92 E93 Flat Cable Wiring Wire CAS Start Stop
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 8585380-1
BMW F30 330d F32 430d N57N 258HP Control Unit ECU Kit DDE 8585380 FEM Key
Promo price
€284.95
€170.97
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 1702103
Battery Terminal Cover BMW E39 Mini R50 R52 R53 Trim Base B + Positive 1702103
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-15%
Part no. 6853705
BMW X6 E71 ICM Integrated Chassis Management Control Unit Brakes 6853705
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
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 - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9177784
BMW X5 E70 X6 E71 X6 E72 Map Fuse Box Grouping Diagram Card 9177784
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 6969281
BMW 1 3 X1 Series E81 E84 E87 E90 E91 Parking Control Module Unit PDC 6969281
Promo price
€56.95
€48.41
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8X0971693
Audi A1 8X Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8X0971693
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 8W5035021
Audi A4 B9 Multimedia MMI Radio SD Player Stereo Sat Nav Head Unit 8W5035021
Promo price
€659.95
€395.97
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A6395406209
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406209
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9121903
BMW E81 E87 E91 Switch Cluster Steering Column Cruise Control 9121903
Promo price
€170.95
€145.31
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9229880
BMW E88 Cabrio ECU Body Control Module H3 Junction Box 9229880
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8W0915181A
Audi A5 F5 HV Battery Negative Cable Terminal 8W0915181A
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 3457434-1
Mini Cooper One R55 R56 R57 LCI R60 Radio Boost CD Player Head Unit 3457434
Promo price
€237.95
€202.26
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7L0941824B
Volkswagen Touareg 7L Fuse Box Module Electrical Relay Control Unit 7L0941824B
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9306085
BMW F30 F31 Seat Module Control Unit Memory Front Left Right N/O/S 9306085
Promo price
€51.95
€31.17
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9264923
BMW F01 F02 F10 F11 F13 Power Distribution Fuse Box Rear 9264923
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 1440105280
Citroen Jumpy MK2 Peugeot Expert 1.6 HDI Alternator Wiring Loom 1440105280
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

Part no. 5Q0971230ES
Battery Cable Audi A3 8V Starter Alternator Wiring Harness 5Q0971230ES
€28.95
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6800903
Mini R50 R52 R53 Steering Wheel Horn Switch Right O/S 6800903
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8V0907159
Audi A3 RS3 8V Impact Sound Actuator Body Control Unit Module ECU 8V0907159
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 03F906070GN-2
Audi A1 8X 1.2 TFSI CBZA 86HP Engine Control ECU Kit 03F906070GN Manual
Promo price
€189.95
€113.97
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A0009003310
Mercedes W205 W213 Fuel Pump Module Control Unit ECU A0009003310
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6958525-1
BMW 5 X5 X6 Series 1 E60 E61 E70 F07 F10 F11 Seat Adjustment Switch Left N/S
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2035401113
Mercedes C Class W203 Solenoid SOLV Valve Wiring Harness Diesel A2035401113
Promo price
€37.95
€32.26
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. A2098209810
Mercedes CLK A209 Cabrio Alarm Anti Theft System Control Module Unit A2098209810
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. A0009822112
Energy Distributor Mercedes W205 W238 Power Control Unit Module A0009822112
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9217912
BMW E82 E90 LCI Trunk Shelf Left Right Speaker Tweeter Harman Kardon 9217912
Promo price
€28.95
€24.61
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 8571905
BMW F20 F21 F22 F30 N47N Diesel Engine Starter Motor 8571905
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6931507
BMW E60 E61 E63 E87 E90 E91 F10 Diagnosis Interface Most 6931507
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 6797439
BMW F07 GT ICM Management Control Unit Module DSC Brakes 6797439
Promo price
€66.95
€40.17
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9140179
BMW F10 Radio Antenna Amplifier Suppression Filter 9140179
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9319493
Air Module Unit BMW F10 F11 F30 F31 F25 F12 F13 X3 F25 ECU Control 9319493
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 9262871
BMW F01 Front Door Wiring Loom Cable Harness 9262871
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8795213
BMW F20 F21 F30 F31 Wire Cable Screen Connector Monitor Display 8795213 8795212
Promo price
€47.95
€40.76
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 4H0911075B
Audi A8L 4H Power Positive Distribution Junction Jumper Box Housing 4H0911075B
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 7804127
BMW E60 E61 LCI 520d Cable Alternator Starter Base B 7804127
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 9293309
BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 9293309
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9459673
Seat Module BMW X4 F26 F20 F30 Front Driver Side Control Unit ECU 7943747
Promo price
€61.95
€37.17
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 4H0959760D
Audi A8 4D Front Seat Memory Adjustment Module Unit Right O/S 4H0959760D
Promo price
€56.95
€34.17
Free delivery - Thu, Nov 06
If paid before 14:00

-15%
Part no. 8573257-9
BMW F20 F30 F32 120d 320d 420d Diesel N47N 163HP Engine ECU DDE 8573257 Manual
Promo price
€32.95
€28.01
Free delivery - Thu, Nov 06
If paid before 14:00

-40%
Part no. 9366112
Mini F56 Active Sound Design Radio Audio Amplifer Control Unit Module 9366112
Promo price
€42.95
€25.77
Free delivery - Thu, Nov 06
If paid before 14:00

-5%
Part no. 6953424-3
BMW Z4 E85 E86 Positive Battery Cable Plus Pole Lead 6953424
Promo price
€23.95
€22.75
Free delivery - Thu, Nov 06
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 .