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
-5%
Part no. A1699000200
Mercedes-Benz A B W169 W245 Front Right Door Control Unit Module A1699000200
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2218703086
Mercedes W221 Seat Module Front Right O/S Memory Control Unit A2218703086
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2079004400
Rear Window Module Mercedes W207 C207 Coupe Control Unit ECU A2079004400
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2465400140
Mercedes-Benz A-Class W176 Equipment Electrical Cover Fuse Box A2465400140
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A9079051202
Mercedes Sprinter W907 Battery Wire Negative Lead Cable A9079051202
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2079052800
Mercedes-Benz E-Class W207 Cabrio A207 Anti Theft Alarm Module Control Unit ECU
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7607973
BMW F20 F21 F30 Wiring Loom Harness Injection Valve Ignition 7607973
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6964141
BMW 7 Series E65 E66 E67 Control Unit Module Door Front Driver Side 6964141
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
Part no. 6930302
BMW E60 E61 E63 E64 Actuator Ventilation Motor Heater Right O/S 6930302
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. JX61-12B533-AB
Ford Transit Mk8 Engine Glow Plug Relay Module 2.0 EcoBlue Diesel JX61-12B533-AB
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 5N0971349AT
Volkswagen Tiguan 5N Alternator Generator Wiring Harness Cable 5N0971349AT
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8K0971104AF
Audi A5 8T 5 Door Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AF
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9153137
BMW F01 F02 F03 Holder Bracket Control Unit Top Rear Side View 9153137
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9369633
Mini F54 F55 F56 F60 ECU Body Domain Controller BDC Module Control Unit 9369633
€142.95
Free delivery: Feb 16 – 19
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
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 5WA962133E
Volkswagen Golf 5G Keyless Entry Module Aerial Antenna 5WA962133E
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8381963
BMW E39 Petrol M52 523i Body Control Module 8381963
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1668210151
Impact Sensor Mercedes W166 W176 W246 Crash Sensor A1668210151
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9277812
BMW 2 Series F23 Convertible Rear Trunk Tailgate Antenna Aerial DAB 9277812
Promo price
€67.95
€40.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9296495
BMW F20 F21 F22 F30 F31 F33 F34 Air Module Control Unit ECU 9296495
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2078201989
Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit A2078201989
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8736682
BMW i3 I01 Body Domain Comfort Control Unit BDC Module ECU 8736682
Promo price
€313.95
€188.37
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2129009622
Mercedes W212 Fuse Box Relay Rear SAM Control Unit Module A2129009622
Promo price
€51.95
€31.17
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 1393415
BMW 3 5 7 Series E36 E38 E90 E91 F10 F11 Change-Over Contact Relay Grey 1393415
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 6G9T-14B192-BA-1
Ford Galaxy Mondeo Transit Relay 4-Pin Black FoMoCo Unit SET X2 6G9T-14B192-BA
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6929345
BMW 1 3 Series E82 E90 E92 Roof Antenna Aerial Shark Fin GPS Radio Tel 6929345
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8576333-8
BMW F20 F30 F32 xDrive N47N 163HP Engine Control ECU Kit DDE 8576333 Manual
€165.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9153135
BMW F01 F02 F03 Holder Bracket Control Unit Amplifier 9153135
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 5QS919298
Audi A3 S3 8Y VW Caddy SB Mk4 Parking Sensor Module Control Unit 5QS919298
Promo price
€161.95
€137.66
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 4H0909131
Audi A8L 4H Ignition Keyless Entry Reader Coil Module 4H0909131
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 8P4971693T
Audi A3 8P Door Wiring Harness Loom Cables Rear Left Right N/O/S 8P4971693T
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A6395400044
Mercedes Vito W639 Anti Theft Alarm Switch Loom Cable A6395400044
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 7316535-3
BMW F06 F13 Sliding Sunroof Drive Motor Unit Webasto 7316535
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9180402
BMW E90 Front Sport Seat Lumbar Wiring Loom Harness Cable 9180402
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9122274
BMW E60 E61 LCI Front Cables Set Wiring PDC Parking Sensor Bumper 9122274
€47.95
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-15%
Part no. A2468200035
Mercedes-Benz A-Class W176 Mikrophone Roof Control Module A2468200035
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9137800
Mini Cooper One R55 R56 R57 Passenger's Door Harness Wiring Cables N/S 9137800
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6956746
BMW E81 E87 E90 LCI PDC Parking Ultrasonic Sensor Monaco Blue A35 6956746
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 7601189
BMW Mini Cooper R55 R56 LCI N16 Engine Wiring Loom Injection Ignition
Promo price
€56.95
€48.41
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6920469
BMW E65 E66 E67 Sensor A-pillar Right Airbag 65776920469 6920469
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-40%
Part no. 5QA919294L
Audi Q2 GA Park Parking Assist PDC Distance Control Unit Module 5QA919294L
Promo price
€47.95
€28.77
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 4G0919475L
Audi A6 C7 4G PDC Module Parking Sensor Assistance Control Unit 4G0919475L
€142.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9824925
Mini F55 F56 F60 LCI Navigation Touch Screen 8.8" Display Nav Head Unit 9824925
Promo price
€664.95
€565.21
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. F1ET-14240-LBG
Ford Focus Mk3 Rear Door Cable Wiring Harness Loom Left N/S F1ET-14240-LBG
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A1698207326
Mercedes-Benz A B Class W169 W245 Door Control Unit Left N/S Front A1698207326
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 5QS907338B
Audi A3 S3 8Y Headlight Head Light Lamp Range Control Unit Module ECU 5QS907338B
Promo price
€94.95
€56.97
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9188582
BMW X3 F25 Holder Audio Amplifier Telephone Bracket Mount Trim 9188582
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A2059055211
Mercedes W117 W154 W205 W213 W217 Tailgate Open Switch Sensor Rear A2059055211
€37.95
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 5Q0937084AE
Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AE
Promo price
€32.95
€28.01
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2199001100
Mercedes W219 Head Unit CD Player Navigation COMAND Radio Audio Unit A2199001100
Promo price
€379.95
€227.97
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. A1779000304
Airbag Module Mercedes V177 W177 C118 Air Bag SRS Control Unit ECU A1779000304
Promo price
€33.95
€28.86
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. F20 F30 PLUG SOCKET LOOM PDC
PDC Plug BMW F20 F22 F30 F32 Loom Socket Parking Sensor Wiring Harness
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. F1FT10C679BA
Ford Transit Mk7 V Negative Battery Terminal Cable Wiring F1FT10C679BA
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2079059702
Mercedes-Benz W207 A207 Radio Aerial Antenna Amplifier Module Unit Right O/S
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2118203375
Antenna Booster Mercedes W211 Rear Boot Lid Tailgate Amplifier A2118203375
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6927572
BMW X3 E83 Z4 E85 Wiring Seat Occupancy Cable 6927572
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 7587548-5
Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7587548 CAS3 + Key Manual
Promo price
€579.95
€492.96
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 8377658
BMW X5 SERIES E53 TV amplifier 8377658
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A9079000304
Mercedes Sprinter W907 W910 Air Module Sensor Unit ECU A9079000304
Promo price
€66.95
€40.17
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6927705
BMW 5 Series E60 E60N E61 E61N Battery lead positive underfloor 80 MM² AL petro
Promo price
€66.95
€56.91
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A0038208426
Crash Sensor Mercedes ML W164 W221 Front Rear Impact Airbag Unit A0038208426
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 9122100
BMW 1 Series E88 Mini Cooper R57 R59 Sat Nav GPS Antenna Amplifier 9122100
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 5Q0955559C
Volkswagen Golf 8 Rain Sensor Front Windscreen 5Q0955559C
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6805893
Mini F60 Countryman Door Wiring Harness Rear Left Right N/O/S 6805893
Promo price
€37.95
€32.26
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9231283-AZB
BMW E70 F10 F11 PDC Parking Sensor Ultrasonic Sensor Azurit Black - S34 9231283
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 9803846-1
Mini Cooper Countryman R58 R60 R61 Aerial Roof Antenna Base Module 9803846
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9157157
BMW E60 E61 E63 E64 Gateway Module Control Unit ECU 9157157
€37.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9229972
Module BMW Z4 E89 Convertible Cabrio ECU Control Unit Controller 9229972
Promo price
€113.95
€68.37
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 3D0035110
Volkswagen VW Phaeton 3D GP0 CD Changer 6-Disc Multichanger 3D0035110
€47.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 504092575
Iveco Daily 3 Electrical Wire Earth Cable Battery Power Wiring 504092575
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6995617
BMW F40 F44 G20 G21X5 G05 X6 G06 Immobilizer Emergency Start Coil 6995617
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. Q0003188V008000000-1
Smart Fortwo C450 Engine Starter Motor Actuator Q0003188V008000000
€56.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 3Q0941329
Volkswagen Skoda Seat Audi Diesel Engine Adblue Module Control Unit 3Q0941329
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A2218201811-2
Mercedes W221 Bluetooth Hands Free Mobile Phone Adapter Connector A2218201811
Promo price
€56.95
€34.17
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 04L907309D-3
VW Golf VII 5G 2.0 TDI CKFC 150HP Engine Control Unit ECU Kit 04L907309D Manual
€161.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A0015467435
Battery Cover Mercedes W906 Battery Positive Pole Cover Red A0015467435
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-15%
Part no. 6H52-18C808-BD
Land Rover Freelander II Audio Amplifier Control Module 6H52-18C808-BD
Promo price
€28.95
€24.61
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 9360501-3
BMW F40 F48 Mini F56 Distribution Fuse Box Rear Electric Power Fuse Box 9360501
€23.95
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 9364636
Body Domain Controller Mini F54 F55 F56 F60 ECU BDC Control Unit Module 9364636
Promo price
€165.95
€99.57
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. A9078200301
Mercedes W907 Radio Professional System Controller Head Unit A9078200301
Promo price
€180.95
€108.57
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6964140
BMW 7 Series E65 E66 Control Unit Door Rear Passenger Side 6933264
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8512499-8
BMW E87 E90 LCI N47 118d 318d 143HP Diesel ECU Kit DDE 8512499 CAS3 + Key Manual
Promo price
€165.95
€99.57
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7515197-1
Mini Cooper One R50 W10 Battery Cable Wiring Plus Pole 7515197
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. A2055401516
Mercedes W205 Battery Cable Negative Lead Wiring Harness Control A2055401516
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 2Q0937615A
Volkswagen Polo Mk6 Fuse Relay Box Power Supply Unit 2Q0937615A
€28.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6974373-1
BMW E81 E84 E87 E88 E90 Ultra Sonic Module Alarm System 9149671
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 7515197-2
MINI Cooper One R50 W10 Battery Cable Plus Pole 7515197
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 6928050
BMW 7 Series E65 E66 E67 Battery Cable Wire Earth Ground Minus Negative L=260MM
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 8W0959592E
Audi A4 B9 Front Door Control Module Unit Passenger Side ECU 8W0959592E
Promo price
€42.95
€25.77
Free delivery: Feb 16 – 19
If paid before 14:00
Part no. 09D927750AK
Porsche Cayenne 955 9PA Automatic Gearbox Module Control Unit ECU 09D927750AK
€51.95
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. A2079013700
Mercedes-Benz E-Class W207 Windscreen Windshield Rain Sensor Control Unit
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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: Feb 16 – 19
If paid before 14:00
-40%
Part no. 03L906018KP
Audi TT 8J CFGB 2.0 TDI Quattro 170HP Engine ECU Kit 03L906018KP Automatic
Promo price
€146.95
€88.17
Free delivery: Feb 16 – 19
If paid before 14:00
-40%
Part no. 6821404
High Voltage Cable BMW F45 Mini F60 Hybrid Plugin Alternator 6821404
Promo price
€332.95
€199.77
Free delivery: Feb 16 – 19
If paid before 14:00
-5%
Part no. 55562863
Opel Insignia A 2.0 CDTI Diesel Alternator Bracket Holder Mount 55562863
Promo price
€23.95
€22.75
Free delivery: Feb 16 – 19
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 .