Automotive electrical systems
More informationAt Global Parts, we offer a wide selection of original used car parts, including automotive electrical systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each of our car parts undergoes quality control to ensure you receive a top-quality product.
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Make
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In Stock
Price
-5%
Part no. 7L0937576B
Audi Q7 4L Fuse Box Trim Cover Panel Electrical Unit Housing 7L0937576B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4F0035061D
Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035061D
Promo price
£170.95
£145.31
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4G8959252A
Audi A7 4G8 Sportback Rear Spoiler Adjustment Tailgate Control Unit 4G8959252A
Promo price
£61.95
£52.66
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8W0915101A
Audi A4 B9 Voltage Converter Module Auxiliary Battery Unit 8W0915101A
Promo price
£142.95
£85.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4F0907468R
AUDI Q7 4L Quattro 3.0 TDI BUS Diagnostic Gateway Interface Module 4F0907468R
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8V1035035D
Audi S3 8V Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8V1035035D
£398.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0959792D
Audi A5 8T Front Door Control Module Unit Left N/S 8T0959792D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8W0959121A
Audi A4 B9 A5 F5 Air Module Pedestrian Protection Sensor Crash 8W0959121A
Promo price
£94.95
£56.97
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 06L971627A
Audi S1 8X S3 8V VW Golf R Mk7 2.0 TFSI Fuel Injectors Wiring Harness 06L971627A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. RHD-8R2035186P
Audi A5 8F Radio Stereo CD Player Reader Head Unit MMI Multimedia 8R2035186P
Promo price
£32.95
£28.01
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4L0035382B
Audi Q7 4L Boot Trunk Subwoofer Rear Bass Speaker 4L0035382B
Promo price
£28.95
£24.61
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0907530Q
Gateway Control Module Audi A3 8V Volkswagen MK7 ECU Unit 5Q0907530Q
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8W1959595D
Audi Q5 FY Rear Door Control Module Unit Left Right N/O/S 8W1959595D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 0C8927750AL
Audi Q7 4L 3.0 TDI Automatic Gearbox Module Control Unit ECU Diesel 0C8927750AL
Promo price
£142.95
£121.51
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8X0959655B
Audi A1 8X Air Module Control Unit Sensor 8X0959655B
Promo price
£47.95
£40.76
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4N0959651D
Audi Q5 FY Crash Impact Sensor Unit Module Left Right N/O/S 4N0959651D
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0907063BE
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063K
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4G0035053
Audi A5 8T Harman Becker Navi Sat Radio Receiver Control Head Unit 4G0035053
Promo price
£118.95
£101.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 04L911021
Audi A5 8T 2.0 TDI CNHA Diesel Engine Motor Starter 04L911021
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4G0035061J
Audi A7 4G A4 B8 A6 C7 Q5 8R Sat Navi Stereo Radio Audio Unit Player 4G0035061J
Promo price
£237.95
£142.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 5Q0915331K
Audi S3 8V Battery Tray Holder Mounting Bracket 5Q0915331K
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 7H0907655A
Audi TT 8J Yaw Rotary Rate Sensor Speed Cluster Sensor 7H0907655A
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. RHD-8T2035110C
Audi A4 B8 Disc CD Changer Player Reader System ESP Switch 8T2035110C
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8P3907357B
Audi S3 8P Xenon Headlight Range Control Module Unit ECU 8P3907357B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4L0907468B
Audi Q7 4L Gateway Module Central Control Unit 4L0907468B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P0035193GX
Audi A3 8P Radio Media GPS Sat Navigation Unit 8P0035193GX
Promo price
£189.95
£161.46
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4L0919475A
BCM Module Audi Q7 4L A6 C7 A8 4H Body Control Unit ECU 4L0919475A
Promo price
£113.95
£68.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8T0907468AD
Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4F0953549A
Audi S6 C6 Steering Column Wiper Switch Stalk Cruize Control 4F0953549A
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0907357
Audi A3 8V Headlight Head Light Lamp Range Control Unit Module ECU 5Q0907357
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0919283F
Parking Distance Audi A3 8V TT Mk3 Seat Leon MK3 Control Module 5Q0919283F
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0959595B
Audi A3 8V Rear Door Control Module Unit ECU Left Right N/O/S 5Q0959595B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8T0907217A
Front Camera Audi A4 B8 A5 8T Lane Assist Module Control Unit 8T0907217A
£28.95
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0919475AA
Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA
Promo price
£113.95
£68.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8E0907637B
Audi A6 C6 Yaw Module Rotation Rate Acceleration Sensor 8E0907637B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959795C
Audi A4 B8 Door Module Rear Left Right N/O/S Control Unit Module ECU 8K0959795C
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4B0959643E
Audi A3 8P Crash Impact Airbag Sensor Unit Module Air Bag 4B0959643E
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. RHD-8W2919616
Audi A4 B9 Multimedia Volume Control Button Switch Knob Head Unit 8W2919616
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4L0915181
Audi Q7 4L Power Supply Battery Control Module Unit 4L0915181
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 5Q0962131
Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
Part no. 8P0862335Q
Audi A4 B7 Harman Becker Bluetooth Module Interface Control Unit 8P0862335Q
£13.95
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4E0910563C
Audi S8 D3 Digital Radio DAB Tuner Receiver Module Kenwood 4E0035583C
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4F0959655B
Audi A6 C6 Air Module Control Unit ECU Module 4F0959655B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8P0035186AB
Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186AB
Promo price
£47.95
£28.77
Free delivery: Feb 27
If paid before 14:00
Part no. 4F1862335
Audi Q7 4L Bluetooth Interface Telephone Control Module ECU Unit 4F1862335
£56.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8X0959793F
Audi A1 8X Front Door Module Unit Control Driver's Side Right O/S 8X0959793F
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8V0857273N-1
Audi A3 S3 8V Head Up Navigation Multimedia Screen Display Unit 8V0857273N
Promo price
£47.95
£28.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0907063
Audi A4 B8 Body Control Unit Basic Module BCM 8K0907063
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P0907115AP
Audi S3 8P 2.0 TFSI CDLA 265HP Engine Control Module ECU 8P0907115AP Automatic
Promo price
£132.95
£113.01
Free delivery: Feb 27
If paid before 14:00
Part no. 4F0907357F
Audi A6 C6 Headlight Head Light Lamp Range Control Unit Module ECU 4F0907357F
£13.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8P0919283D
Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8P0953519G
Audi TT 8J A3 8P Windscreen Wiper Stalk Switch Assembly 8P0953519G
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8V1035035B
Audi A3 S3 Q2 RS3 Multimedia Navigation Card Reader Head Unit 8V1035035B
Promo price
£474.95
£403.71
Free delivery: Mar 2 – 9
If paid before 14:00
-40%
Part no. 06A903143P
Audi TT 8N Alternator Bracket Mount Holder 06A903143P
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 3Q0905861C
Audi A4 B9 A5 F5 Steering Column Lock Mechanism Control Unit 3Q0905861C
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
Part no. 8W0947355G
Audi A5 S5 F5 Door Panel LED Module Light Unit Wiring Front Right O/S 8W0947355G
£13.95
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0907063N
Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907063N
Promo price
£42.95
£25.77
Free delivery: Feb 27
If paid before 14:00
Part no. 03G906018AQ
Audi A4 B7 2.0 TDI 170HP BRD Engine Control Module Unit ECU 03G906018AQ Manual
£51.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8P0959655C
Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655C
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 5QA919283E
Audi A3 8V Park Parking Assist PDC Distance Control Unit Module 5QA919283E
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 03L911021C
Audi A4 B8 2.0 TDI CAGA Diesel Engine Starter Motor Bosch Unit 03L911021C
Promo price
£37.95
£32.26
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. RHD-8X2971029AF
Audi A1 8X Front Driver Door Wiring Harness Loom Cable Right O/S 8X2971029AF
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8X0907063AF
Audi Q3 S Line BCM Body Control Module Unit ECU 8X0907063AF
£75.95
Free delivery: Feb 27
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
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 1K0906093G
Audi A1 8X VW Seat Skoda Fuel Pump Control Unit Module 1K0906093G
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 1K0937125C
Fuse Box Audi A3 8P Volkswagen Golf Mk5 Cover Trim Panel Housing 1K0937125C
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 7E0907652A
Audi TT 8J ESP YAW Rate Lateral Acceleration Speed Sensor 7E0907655A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 420919275-BLM
Audi A5 8T Rear Bumper PDC Parking Distance Sensor Black Magic Pearl - C9Z
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8W0915101
Audi A4 B9 Voltage Converter Module Auxiliary Battery Unit 8W0915101
Promo price
£132.95
£113.01
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8J0035223A
Audi TT 8J Audio Amplifier Premium Sound Booster Control Unit Bose 8J0035223A
Promo price
£379.95
£322.96
Free delivery: Mar 2 – 9
If paid before 14:00
-40%
Part no. 04L907445G
Audi Q2 GA 1.6 TDI DGTE 115 HP Engine Control Unit ECU 04L907445G Automatic
Promo price
£123.95
£74.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 059911024K
Starter Motor AUDI Q7 4L VW Touareg MK2 3.0 TDI Diesel Starter 059911024K
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
Part no. 8U0907115K
Audi Q3 8U 2.0 TFSI Quattro CCZC 170HP Engine Control ECU 8U0907115K Automatic
£237.95
Free delivery: Mar 2 – 9
If paid before 14:00
-15%
Part no. 8E0907307D
Audi A4 B7 Servotronic Steering Control Unit Module 8E0907307D
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0907441B
Audi S5 8T Rear Reversing Camera Module View Camera Control Unit ECU 8T0907441B
Promo price
£94.95
£80.71
Free delivery: Mar 2 – 9
If paid before 14:00
-40%
Part no. 4G0035083
Stereo DAB Radio Audi A4 B8 Q5 8R CD Player Radio Receiver Head Unit 4G0035083
Promo price
£132.95
£79.77
Free delivery: Feb 27
If paid before 14:00
Part no. 8W0035465
Stereo Radio Amp Audi A5 F5 Sound System Speaker Amplifier 8W0035465
£132.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8K0907551
Audi A4 S4 B8 3.0 TFSI 333HP CAKA Quattro Engine Control Unit ECU 8K0907551
Promo price
£142.95
£121.51
Free delivery: Mar 2 – 9
If paid before 14:00
-40%
Part no. RHD-5Q2971111CC
Audi A3 8V Power Steering Rack Wiring Harness Loom Cable 5Q2971111CC
Promo price
£51.95
£31.17
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K2907115P
Audi A5 8T A4 B8 8K 2.0 TFSI CDNC Quattro 211HP Engine Module ECU 8K2907115P
Promo price
£75.95
£45.57
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8F0972814
Audi A5 8F Cabriolet Hydraulic Roof Pump Motor Wiring Harness Loom 8F0972814
Promo price
£42.95
£36.51
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8P4035223B
Audi S3 8P Audio Sound BOSE Amplifier Stereo System Module 8P4035223B
Promo price
£113.95
£68.37
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8K0955559E
Audi Q7 4L Front Windscreen Rain Light Solar Sensor Unit 8K0955559E
Promo price
£32.95
£28.01
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959655G
Audi A4 B8 Air Module ECU Control Unit Crash Sensor 8K0959655G
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4G0907637H
Audi A6 C7 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637H
Promo price
£61.95
£37.17
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 079903015F
Audi S5 8T Quattro 4.2 FSI Petrol V8 CAUA Alternator Genarator Valeo 079903015F
Promo price
£94.95
£56.97
Free delivery: Mar 2 – 9
If paid before 14:00
Part no. 8X0919475AE
Audi A1 8X PDC Assistance Parking Distance Control Module Unit ECU 8X0919475AE
£13.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0959793M
Audi A5 8T Front Door Control Module Left N/S Driver's Side Unit 8T0959793M
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8K5907357
Audi A4 B8 Headlight Headlamp Range Control Unit Module 8K5907357
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959793S
Audi A4 B8 Front Door Control Module Unit ECU 8K0959793S
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4G0971845A
Audi A6 C7 Fuse Relay Box Sam Control Module 4G0971845A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0959760B
Audi S5 8T Front Seat Control Module Unit ECU Left Right N/O/S 8T0959760B
Promo price
£47.95
£40.76
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4G0907441B
Audi A7 4G Rear Reversing Camera Module View Camera Control Unit ECU 4G0907441B
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0907063P
Audi A5 8T Body Comfort Control BCM Onboard Supply Module Unit ECU 8K0907063P
Promo price
£37.95
£22.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8K0959501E
Audi A4 B8 Radiator Fan Relay Radiator Electrical Module Control Unit 8K0959501E
Promo price
£32.95
£28.01
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4L0959795B
Audi Q7 4L Door Control Module Unit ECU Rear Left N/S 4L0959795B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 5Q0959393B
Audi A3 8V Front Door Control Module Unit Right O/S 5Q0959393B
£18.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8J0971036F
Audi TT Mk2 8J Door Wiring Harness Cable Loom Passenger Side 8J0971036D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 1K0937125B
Audi A3 8P 2.0 TDI CBAB Fuse Box Power Distribution Engine Bay 1K0937125B
Promo price
£18.95
£16.11
Free delivery: Feb 27
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 .