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. 8W0959595E
Audi A4 B9 Rear Door Control Module ECU Left Right N/O/S 8W0959595E
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. RHD-8T2035186Q
Audi S3 8V Multimedia MMI Radio Stereo Audio Head Unit CD Player 8T2035186Q
Promo price
€32.95
€28.01
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4G8959792G
Audi A6 C7 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8E0910115K
Audi A4 B7 2.0 TFSI BWE 200HP Engine Control ECU 8E0910115K Manual
€66.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 3G0962243C
Volkswagen Seat Skoda Audi Tailgate Module Controller 3G0962243C
€32.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8Y0971693D
Audi S3 8Y Sportback Rear Door Wiring Harness Loom Left Right N/O/S 8Y0971693D
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4H0919275-DGR
Audi TT 8J PDC Parking Distance Sensor Control Daytona Grey Pearl Z7S 4H0919275
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8K0959794A
Audi A4 B8 Door Module Rear Right O/S Control Unit Module ECU 8K0959794A
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8S0907159B
Audi TT FV Acoustic Controller Control Module Unit ECU 8S0907159B
€28.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8Y0971036E
Audi A3 8Y Front Door Card Wiring Harness Loom Cable Passenger Side 8Y0971036E
€37.95
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 8P4035223D
Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223D
Promo price
€28.95
€24.61
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 8W0959593N
Audi A4 B9 Front Door Module Control Unit ECU Driver's Side 8W0959593N
Promo price
€42.95
€25.77
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 02Z911024Q
Audi A3 8V 2.0 TDI Quattro Starter Motor Engine Diesel Bosch 02Z911024Q
€23.95
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
Part no. 8K0959793C
Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793C
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 5Q0971250AB
Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250AB
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4F0035411E
Audi TT 8J Speaker Loudspeaker Front Door Left Right N/O/S 4F0035411E
€28.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 5F4971693
Audi A1 8X Door Window Switch Loom Cable Rear Left Right N/O/S 5F4971693
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8W0971553
Audi A4 B9 Front Seat Side Air Module Wiring Harness Loom Cable 8W0971553
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4F0959795P
Audi A6 C6 Rear Left N/S Door Lock Control Module Unit ECU 4F0959795P
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 8U0971104C
Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104C
Promo price
€42.95
€25.77
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 431951253H
Audi TT 8N A4 B5 A6 C5 A8 D2 Relay Control Unit Module 12V 4 Pins 431951253H
€23.95
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
Part no. 8P0862335F
Audi A3 8P A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335F
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8T0971035A
Audi A5 8T Coupe Front Door Wiring Loom Harness Driver's Side 8T0971035A
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8K0959793S
Audi A4 B8 Front Door Control Module Unit ECU 8K0959793S
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4F0959792T
Audi A6 C6 Front Left N/S Door Lock Control Module Unit ECU 4F0959792T
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8X0959792H
Audi Q3 8U Door Module Front Door Left N/S Control Module 8X0959792H
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 4F0035503E
Audi A4 B8 Transmitting Receiving Unit Road Toll System 4F0035503E
Promo price
€94.95
€56.97
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8X0959795C
Audi Q3 8U Door Module Rear Left Door Control Unit 8X0959795C
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4M0971228DH
Audi Q7 4M Q8 Mk1 Starter Motor Wiring Harness Cable Line 4M0971228DH
€113.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8K0959792S
Audi A4 B8 Front Door Control Module Unit ECU Passenger Side 8K0959792S
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 1K0937125C
Fuse Box Audi A3 8P Volkswagen Golf Mk5 Cover Trim Panel Housing 1K0937125C
€28.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8T0959793K
Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793K
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 8W0907159F
Audi A4 S4 B9 A5 S5 Impact Sound Actuator Control Module 8W0907159F
Promo price
€37.95
€32.26
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8J0035456A
Antenna Amplifier Audi Q5 8R A6 C6 A5 8T Mobile Phone Module Unit 8J0035456A
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 5Q0971250Q
Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250Q
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8K0907637C
Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637C
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 1J0973332A
Audi RS4 B8 Cable Loom Wiring Plug Socket 2 Pins 1J0973332A
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 04L906021CK
Audi Q5 8R 2.0 TDI CNHA Quattro 190HP Engine Unit ECU Kit 04L906021CK Automatic
€450.95
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 4F1910336B
Telephone Control Module Audi A8 4E S8 D3 Bluetooth Unit 4F1910336B
Promo price
€56.95
€34.17
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 4G0907468AB
Audi A6 C7 Gateway Module Control Unit ECU 4G0907468AB
Promo price
€89.95
€53.97
Free delivery - Wed, Dec 31
If paid before 14:00
-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 - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4E0907280B
Audi A8 4E S8 D3 Power Supply Control Module Unit ECU 4E0907280B
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
-15%
Part no. 5Q0907530AM
Audi A3 8V VW Passat B8 Gateway Control Unit Module 5Q0907530AM
Promo price
€28.95
€24.61
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8V0971553
Audi A3 8V Front Seat Side Air Module Wiring Harness Loom Cable 8V0971553
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4G8959795G
Audi A6 C7 Rear Door Control Module Unit ECU Left Right N/O/S 4G8959795G
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 02E911024M
Audi A3 8V 2.0 TFSI DJHA Starter Motor 12V 02E911024M
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4M0971237S
Audi Q7 4M Q8 Mk1 Battery Negative Cable Wiring Earth Line 4M0971237S
€37.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8E0907279K
Audi A4 B7 Body Control Module BCM Comfort Control Unit Power Supply 8E0907279K
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8K0907063M
Audi A4 B8 A5 8T Body Control Comfort Unit Module Unit ECU 8K0907063M
€23.95
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
-15%
Part no. 8V0971104
Audi A3 S3 8V Sportback Wiring Harness PDC Parking Sensor Rear Bumper 8V0971104
Promo price
€37.95
€32.26
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 03G911023
Audi A4 B7 A6 C6 Motor Starter Unit 2.0 TDI Diesel Engine 03G911023
€28.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8Y0963554A
Audi S3 8Y Rear Seat Couch Occupancy Recognition Sensor Unit 8Y0963554A
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 03L906018JG
Audi A5 8F 2.0 TDI CGLC 177HP Diesel Engine Control Unit ECU 03L906018JG Manual
€32.95
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 8K0971036B
Audi RS4 B8 Door Wiring Harness Cable Loom Front Right O/S 8K0971036B
Promo price
€28.95
€24.61
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4F1941824A
Audi A5 F5 Fuse Box Control Module Connector Plug Socket Wiring Loom 4F1941824A
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 8K0971104AC
Audi RS4 A4 B8 8K Parking Sensors Rear Bumper Wiring Loom 8K0971104AC
Promo price
€42.95
€36.51
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8T0907468AB
Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
Part no. 4H0962239A
Audi A8 D4 Rear Hatch Boot Lid Tailgate Opening Cable Wiring Line 4H0962239A
€42.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4M0971349Q
Audi Q7 4M Electric Alternator Starter Positive Wiring Harness Cable 4M0971349Q
€28.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8W0907777L
Audi RS5 F5 Chassis Module Control Unit 8W0907777L
€313.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8W0035192K
Audi A4 B9 Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 8W0035192K
€284.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8P0035535
Audi A4 B7 Amplifier Bracket Aerial Antenna Module Mount Holder 8P0035535
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8T0907468D
Audi A4 B8 A5 8T Gateway Diagnostic Interface Control Unit Module ECU 8T0907468R
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8W0959655H
Audi A4 B9 RS5 F5 Air Module Control Unit SRS Sensor ECU 8W0959655H
€313.95
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4K1907594CB
Audi S3 8Y VW Golf Mk8 Sun Roof Module Control Unit ECU 4K1907594CB
€75.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8U0955559C
Audi RS3 8V Front Windscreen Rain Light Solar Sensor Unit 8U0955559C
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8P0906131A
Audi A3 8P Engine Unit Bracket ECU Module Holder Bracket Mount 8P0906131A
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 81A035466B
Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B
Promo price
€379.95
€227.97
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 4H0971142C
Audi A8 D4 Door Card Wiring Loom Cable Harness Rear Right O/S 4H0971142C
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 5M0907357G
Audi Q3 8U Headlight Range Control Unit Module ECU 5M0907357G
Promo price
€56.95
€48.41
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 8K0907063AH
Audi A4 B8 Body Control Comfort Unit Module BCM ECU 8K0907063AH
Promo price
€28.95
€24.61
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 8K0907064FF
Audi A4 S4 B8 Body Control Comfort Unit Module BCM2 Unit ECU 8K0907064FF
Promo price
€113.95
€68.37
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 06N971627B
Audi A3 8Y Engine Injector Module Wiring Harness Cable 2.0 TFSI 06N971627B
€47.95
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 8W1907063CC
Audi A4 B9 Body Control Comfort Unit Module BCM Unit ECU 8W1907063CC
Promo price
€180.95
€108.57
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8H0959655E
Audi A4 S4 B7 Cabrio Air Module Control Unit ECU Impact Sensor 8H0959655E
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8K0915181H
Audi A1 8X Negative Minus Battery Terminal Cable 1.4 TFSI CAXA Petrol 8K0915181H
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 5Q0907530AF
Volkswagen Seat Skoda Audi Gateway Control Unit Module ECU 5Q0907530AF
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8P0035613
Audi A3 8P Bluetooth Module Multimedia Control Unit Cover Unit 8P0035613
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
-40%
Part no. 03L906018KD-1
Audi A4 B8 All Road 2.0 TDI CGLC 177HP Quattro Engine ECU Kit 03L906018KD Manual
Promo price
€237.95
€142.77
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4L0959794B
Audi Q7 4L Door Control Module Electrical Unit ECU Rear Right O/S 4L0959794B
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8T0959795C
Audi A5 8T Rear Door Control Module Unit Left Right N/O/S 8T0959795C
€23.95
Free delivery - Wed, Dec 31
If paid before 14:00
-15%
Part no. 6C0907359
Audi A4 B8 Air Suspension Module Regulation Control Unit 6C0907359
Promo price
€32.95
€28.01
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
-40%
Part no. 4F1971687AL
Audi A6 C6 Rear Left N/S Door Harness Cable Loom 4F1971687AL
Promo price
€51.95
€31.17
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8S0035021E
Audi TT FV Mk3 Navi SD GPS MMI Multimedia Head Unit Module 8S0035021E
€664.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 4H0035225N
Audi A8L 4H Antenna Aerial Amplifier 4H0035225N
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
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 - Wed, Dec 31
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 - Wed, Dec 31
If paid before 14:00
Part no. 8K2907115AE-1
Audi A4 B8 A5 8F 2.0TFSI CDNC 211HP Engine Unit ECU 8K2907115AE Manual
€113.95
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8T0907468M
Audi A5 8T Central Gateway Module ECU Control Unit Lear 8T0907468M
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
-40%
Part no. 8W0959655P
Audi A4 B9 Air Module System Control Sensor ECU Unit 8W0959655P
Promo price
€189.95
€113.97
Free delivery - Wed, Dec 31
If paid before 14:00
-5%
Part no. 8K0971104
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104
Promo price
€23.95
€22.75
Free delivery - Wed, Dec 31
If paid before 14:00
Part no. 8T0907468T
Audi A4 B8 A5 8T Gateway Control Unit Module ECU 8T0907468T
€23.95
Free delivery - Wed, Dec 31
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 .