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
-15%
Part no. 80A035223A
Audi Q5 FY Sound System Audio Amplifier Amp Unit Bang & Olufsen 80A035223A
Promo price
£284.95
£242.21
Free delivery: Mar 2 – 9
If paid before 14:00
-40%
Part no. 4G1035192C
Audi A7 4G8 MMI Multimedia Sat Nav Navigation Control Head Unit 4G1035192C
Promo price
£189.95
£113.97
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4F0907468M
Audi A6 C6 Diagnostic Interface Gateway Module ECU Control Unit 4F0907468M
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8N7951177
Audi TT 8N Alarm Interior Movement Detector Module Control Unit ECU 8N7951177
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959655N
Audi A4 B8 A5 8T Air Module Control Unit ECU 8K0959655N
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0907468H
Audi A4 B8 Gateway Interface Control Module Unit ECU 8T0907468H
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8W0035454A
Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454A
£18.95
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. RHD-8W2971111C
Audi S4 B9 Power Steering Rack Wiring Harness Loom Cable 8W2971111C
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4M0035454B
Audi A4 B9 Dashboard Loudspeakers Tweeter Speaker Front 4M0035454B
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8E0959655J
Audi A4 B6 Air Module Crash Impact Sensor Control Unit ECU 8E0959655J
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 03L906022FD-1
Audi A3 8P 2.0 TDI 170HP CBBB Engine ECU Unit Kit 03L906022FD Key + Ignition
Promo price
£142.95
£85.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4F0907279D
Audi Q7 4L Comfort Control Module Unit ECU 4F0907279D
Promo price
£47.95
£28.77
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8F1035223
Audi A5 8F Convertible Cabrio Bang & Olufsen Speaker Sound Amplifier 8F1035223
Promo price
£189.95
£113.97
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4M8907777CA
Audi Q7 4M Air Suspension Adjustment Module Control Unit ECU 4M8907777CA
Promo price
£218.95
£186.11
Free delivery: Mar 2 – 9
If paid before 14:00
-5%
Part no. 8K0955557C
Audi A4 B8 Crash Impact Sensor Unit Air Module 8K0955557C
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 1K0915333H
Audi A3 8P Battery Box Tray Housing Holder Bracket Cover Mount 1K0915333H
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8E0880201DH
Audi A5 8T Steering Wheel Air Module Driver's Side 8E0880201DH
Promo price
£23.95
£20.36
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8P3971085
Audi A3 8P Rear Bumper PDC Wiring Parking Sensor Loom Harness 8P3971085
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0907468T
Audi A4 B8 A5 8T Gateway Control Unit Module ECU 8T0907468T
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8K0971104T
Audi A4 S4 B8 Front Rear Bumper PDC Parking Sensor Wiring Loom 8K0971104T
£23.95
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. EXHAUST-FLAP-CONTROL
Audi A3 8V 1.6 TDI CLHA Drive Exhaust Flap Control Module Unit Actuator
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K590735700
Audi A5 8T Front Lamp Xenon Headlight Range Control Module 8K590735700
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0907064BP
Audi S5 8T Body Comfort Control BCM Supply Module Unit ECU 8K0907064BP
Promo price
£51.95
£31.17
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0907064KB
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064KB
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8V4971030G
Audi RS3 8V Front Passenger Door Wiring Left N/S Harness Loom Cable 8V4971030G
Promo price
£47.95
£40.76
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4G0907637K
Audi A7 4G8 ESP Yaw Rate Module Control Unit Sensor ECU 4G0907637K
Promo price
£47.95
£28.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0035462
Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035462
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
Part no. 4G8959792H
Audi A7 4G8 Door Control Module Passenger Side Front 4G8959792H
£18.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 6C0907361E
Fuse Box Audi A1 Seat Ibiza Control Module Relay Box 6C0907361E
Promo price
£56.95
£48.41
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. RHD-8R2035666B
Audi S8 8T Head Unit Radio Player Navigation Control Module 8R2035666B
Promo price
£85.95
£51.57
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8W0971235A
Audi A4 B9 Negative Battery Terminal Cable Harness Wiring Loom 8W0971235A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0959795F
Audi A5 8F Window Lifter Module Control Unit Rear Left Right N/O/S 8T0959795F
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 3C0915336A
Audi A3 8P Battery Box Tray Covering Housing Trim Holder Bracket 3C0915336A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8U0907468G
Audi Q3 8U Gateway Interface Control Module Unit ECU 8U0907468G
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8V0035020C
Audi A3 8V Dashboard Sat Navigation Unit System 8V0035020C
Promo price
£417.95
£355.26
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0915181H
Audi A3 8V Negative Battery Terminal Cable Harness Wiring Loom 5Q0915181H
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4E0910336H
Audi A6 C6 Q7 4L Bluetooth Telephone Control Module ECU 4E0910336H 4E0862335
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4E0910110E
Audi S6 C6 6-Disc CD Changer Magazine Head Unit MMI 4E0910110E
Promo price
£32.95
£19.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8X0907063K
Audi A1 8X Body Control Module Unit ECU 8X0907063K
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 4G8959793H
Audi A7 4G Front Door Module Driver's Side Control Unit ECU 4G8959793H
£13.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. rhd-8K2971845A
Audi A1 8X Fuse Box Relay Control Unit Module 8K2971845A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8E9035223D
Audi A4 B7 Audio Radio Aerial Amplifier Control Unit Harman Becker 8E9035223D
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 5QS959655A
Audi A3 S3 8Y Air Module Crash Impact Sensor Unit Control ECU 5QS959655A
Promo price
£256.95
£154.17
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8Y0959593L
Audi Q3 A3 S3 8Y Front Driver's Door Module Control Unit ECU 8Y0959593L
Promo price
£56.95
£48.41
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8N7962267E
Audi TT 8N Convertible Comfort Control Module CCM Unit ECU 8N7962267E
Promo price
£203.95
£122.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 079911023D
Audi A5 8T 2.0 TFSI Starter Motor Engine 079911023D
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8K0907551-1
Audi S4 B8 3.0 TFSI 333HP CAKA Quattro Engine ECU Kit 8K0907551 Automatic
Promo price
£208.95
£125.37
Free delivery: Mar 2 – 9
If paid before 14:00
-15%
Part no. 4L0971225D
Audi Q7 4L Positive Battery Terminal Cable 4L0971225D
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 04L906021BQ
Audi A4 B8 Engine Control Unit Module ECU 2.0 TDI CNHC 163HP 04L906021BQ
Promo price
£47.95
£28.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0937517B
Audi RS4 B8 Positive Battery Distribution Terminal Junction Relay Box 8K0937517B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8W0907163
Audi AQ5 FY Rear Differential Control Module Unit QMV 8W0907163
£23.95
Free delivery: Feb 27
If paid before 14:00
Part no. 8E0035192T-1
Audi A4 B7 Sat Navi Stereo Radio Audio Head Unit CD Player 8E0035192T
£66.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. RHD-8K2907613A
Audi S5 8T Fuse Box Lid Cover Box Trim 8K2907613A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0959595L
Audi A3 8Y Rear Door Control Module Unit ECU Driver's Side Right O/S 5Q0959595L
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 1K0907530P
Audi A3 8P Gateway Module Diagnostic Interface Control Unit ECU 1K0907530P
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 4L0698007B
Audi Q7 4L Air Suspension Level Height Adjustment Compressor Pump 4L0698007B
£94.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0915181
Audi A4 B8 A5 8T A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5N0971235A
Audi A3 8P VW Golf MK6 Battery Negative Earth Cable Harness Wiring 5N0971235A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959794A
Audi A4 B8 Door Module Rear Right O/S Control Unit Module ECU 8K0959794A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959793C
Audi A4 B8 Door Module Control Unit ECU Front Driver's Side 8K0959793C
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0907468K
Gateway Interface Audi A5 8T A4 B8 Control Unit Module ECU 8T0907468K
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8J0057186Q
Audi TT 8J Radio Head Unit CD Audio Player Control Unit 8J0035186Q
Promo price
£70.95
£60.31
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0035785A
Audi A5 8T MMI Multimedia Interface Unit Module Control ECU 8T0035785A
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4E0910552G
Audi S8 D3 5.2 FSI 450HP BSM Quattro Engine Unit ECU 4E0910552G Automatic
Promo price
£322.95
£193.77
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0959793G
Audi A4 B8 Door Module Front Left N/S Control Unit ECU 8T0959793G
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 4L0035223J
Audi Q7 4L Amplifier BOSE Premium Audio Sound System Module 4L0035223J
Promo price
£237.95
£142.77
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8R0907468L
Audi A5 8F Gateway Control Unit Module ECU 8R0907468L
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8H0951178
Audi A4 B7 Cabrio Alarm Signal Body Control Sensor Module Unit 8H0951178
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 8E0959433CQ
Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ
£47.95
Free delivery: Feb 27
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
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 4F0959795N
Door Module Audi A4 B8 A6 C6 Rear Unit Control ECU Left N/S 4F0959795N
£13.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 8T0959760C
Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C
Promo price
£51.95
£44.16
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8T0907560AC
Audi S5 8T 4.2 FSI CAUA Quattro 354HP Engine ECU Kit 8T0907560AC Ignition + Key
Promo price
£474.95
£284.97
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0915181D
Audi Q7 4L A1 8X Negative Battery Cable Lead Monitoring Module 8K0915181D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 1J0906381B
Audi TT 8N Fuse Box Relay Control Unit Module 1J0906381B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0959795H
Audi A4 B8 Door Control Module Unit ECU Rear Left Right N/O/S 8T0959795H
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 1K0907530AF
Gateway Module Audi A3 8P Volkswagen Golf Mk6 Control Unit ECU 1K0907530AF
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4G8959793G
Audi RS6 C7 Front Door Module Driver's Side Control Unit ECU 4G8959793G
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8K0959792C
Audi A4 B8 Door Module Control Unit ECU Front Front Left N/S Side 8K0959792C
Promo price
£13.95
£13.25
Free delivery: Feb 27
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
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8P7907115K-1
Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit Ignition + Key 8P7907115K
Promo price
£170.95
£102.57
Free delivery: Mar 2 – 9
If paid before 14:00
-15%
Part no. 04L907309AB
Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic
Promo price
£56.95
£48.41
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4KE907468J
Audi Q7 4M Gateway Interface Control Unit Module ECU 4KE907468J
Promo price
£189.95
£161.46
Free delivery: Feb 27
If paid before 14:00
Part no. 8T0959793P
Audi A4 B8 A5 8T Door Control Unit Module Front Driver's Side 8T0959793P
£13.95
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 1S0919275D-TOG
Audi Q3 8U PDC Parking Distance Control Sensor Tornado Grey-X7P 1S0919275D
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8X0959793K
Audi A1 8X Door Module Front Right O/S Driver's Side Control Unit ECU 8X0959793K
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
Part no. 3AA962243H-1
Volkswagen VW Audi Tailgate Opening Boot Control Unit Module 3AA962243H
£23.95
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4G5971036R
Audi RS6 C7 Door Wiring Front Right O/S Door Harness Loom 4G5971036R
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 6C0915441
Audi A1 8X Volkswagen Polo GTI 6C Battery Positive Terminal Jump Cover 6C0915441
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 06A906033JL
Audi A3 8P 1.6 Petrol MPI 102HP BSE Engine ECU Kit 06A906033JL Ignition + Key
Promo price
£75.95
£45.57
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8J0971085D
Audi TT 8J Parking Sensor Wiring Harness Cable PDC Rear Bumper 8J0971085D
Promo price
£23.95
£14.37
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 5DS010161
Audi A8 D4 Trailer Hook Tow Bar Control Module Unit 5DS010161
Promo price
£108.95
£65.37
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 03L906018PH
Audi Q3 8U 2.0 TDI CFGC 177HP Quattro Engine Control Unit ECU 03L906018PH
Promo price
£151.95
£129.16
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 8T0959795N
Audi A4 B8 Rear Door Control Module Unit Left Right N/O/S 8T0959795N
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-40%
Part no. 8W0971687AQ
Audi A4 B9 Door Wiring Loom Harness Rear Left Right N/O/S 8W0971687AQ
Promo price
£28.95
£17.37
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 4F0903291
Audi A6 C6 3.0 TDI Suppression Condenser Noise Filter 4F0903291
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 443937105B-1
Volkswagen Audi Skoda Seat Thermal Fuse Relay Amp 15A 12V 443937105B
Promo price
£18.95
£16.11
Free delivery: Feb 27
If paid before 14:00
-5%
Part no. 5Q0919283B
PDC Module Audi A3 8V Seat Leon Skoda Octavia Parking Control Unit 5Q0919283B
Promo price
£13.95
£13.25
Free delivery: Feb 27
If paid before 14:00
-15%
Part no. 4G0035056
Audi A4 B8 Sat Nav Multimedia DAB Radio Control Head Unit 4G0035056
Promo price
£189.95
£161.46
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 .