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.

Automotive electrical systems

At 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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Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B

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Audi A5 8T Module Lane Assist Control Unit Rear Left N/S 8K0907568H

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Radio CD Player Audi A4 B9 A5 F5 Q5 FY Stereo Sat Nav Head Unit 8W5035035B

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Audi A3 8P TT 8J PDC Parking Distance Control Unit Module 8E0054635D

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Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P

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Audi A5 8T Audio Amplifier Sound Booster Control Unit Module Unit 8T0035223S

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AUDI A7 4G8 Door Control Module Front Right O/S Passenger Side 4G8959792A

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Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R

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Volkswagen VW Audi Tailgate Opening Boot Control Unit Module 3AA962243H

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Audi A4 B8 Door Wiring Harness Loom Front Left N/S Cabling 8K0971030M

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Audi A3 S3 8P Engine Bay SAM Relay Fuse Box Module Control Unit ECU 1K0937124P

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Audi A4 B7 Door Harness Loom Cable Wiring Rear Left Right N/O/S 8E0971687L

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Audi Q5 FY Battery Positive Cable Clamp Control Module Terminal 80A915459

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Audi A4 B7 Body Comfort Control BCM Supply Module Unit ECU 8E0959433CQ

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Part no. 8K2907115S-1

Audi A4 B8 8K A5 8T 2.0 TFSI CDNB 180HP Engine Control ECU 8K2907115S Manual

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Part no. 4E0907383J

Audi A4 B9 Tow Bar Trailer Towing Control Module Unit 4E0907383J

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Part no. 8P0035186G

Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186G

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Audi A3 8V 2.0 TDI CRLB 150HP Engine ECU Kit Ignition + 2 Keys 04L907309A Manual

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Audi Q3 8U 2.0 TDI CFGC Fuel Sender Pump Control Module Unit ECU 5Q0906121D

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Audi S5 8T Parking Electric Brake Handbrake Module Control Unit 8K0907801L

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Audi Q7 4L Door Control Module Unit ECU Rear Left Right N/O/S 8K0959795B

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Audi TT 8N Wind Brake Relay Unit Module 8N7907953

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Audi A4 B7 Aerial Antenna Amplifier Module Left N/S 8H0035225S

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Part no. 5M0907357G

Audi Q3 8U Headlight Range Control Unit Module ECU 5M0907357G

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Part no. 4L0035670

Audi Q7 4L Multimedia Stereo Sat Nav SD CD Player Radio Head Unit 4L0035670

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Part no. 4G0035061S

Audi A5 8T MMI Multimedia Navigation Radio Control Head Unit 4G0035061S

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Part no. 8W8959107B

Audi Q5 FY Rear Boot Trunk Lid Tailgate Control Unit Module ECU 8W8959107B

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Part no. 4H0971104S

Audi A8 D4 Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 4H0971104S

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Part no. 06K907425B

Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C

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Audi TT FV Impact Body Sound Accoustic Control Module ECU 8S0907159

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Audi A1 8X Q3 8U Rear Door Module Control Unit ECU 8X0959795A

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Part no. 4F0959792R

Audi A6 C6 Front Door Left N/S Module Unit Control ECU 4F0959792R

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Part no. 04L907309K

Audi Q3 8U 2.0 TDI CUVC 150HP Quattro Engine Control ECU 04L907309K Automatic

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Part no. 8E5035225D

Audi A4 B7 Window Antenna Amplifier Module 8E5035225D

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Part no. 4L0910553H

Audi Q7 4L Air Suspension Module Regulation Control Unit 4L0910553H

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Part no. 8T0959793M

Audi A5 8T Front Door Control Module Left N/S Driver's Side Unit 8T0959793M

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Part no. 8S0035072A

Audi TT FV Dashboard Sat Nav Drive Unit MMI Multimedia Infortaiment 8S0035072A

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Part no. 06E971627Q

Fuel Injector Wiring Audi S4 B8 A6 A7 C7 4G 3.0 V6 TFSI Wiring Cable 06E971627Q

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Part no. 4G0035083

Stereo DAB Radio Audi A4 B8 Q5 8R CD Player Radio Receiver Head Unit 4G0035083

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Part no. 06K907425B-23

Audi S3 8V 2.0 TFSI 300HP CJXC Quattro Engine Control ECU 06K907425B Manual

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Part no. 4L2035670J

Audi Q7 4L Head Unit Radio Player Navigation Control Module Alpine 4L2035670J

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Part no. 5Q0959592D

Door Module Audi A3 8V VW Golf 7 Seat Leon 3 Front Right O/S 5Q0959592D

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Part no. 4H0907064FN

Audi A6 C7 Gateway Convenience Module Unit Body Control ECU 4H0907064FN

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Part no. 8K0971228P

Audi A4 B8 Starter Alternator Wiring Loom Cable Harness 8K0971228F

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Audi A4 B7 Harman Becker Bluetooth Module Interface Control Unit 8P0862335Q

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Part no. 03L906022NP

Audi A4 B8 A5 8T 2.0 TDI CAHA 170HP Diesel Engine Control ECU 03L906022NP Manual

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Part no. 8R0907468F

Audi A5 8T Diagnostic Interface Gateway Control Module Unit ECU 8R0907468F

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Part no. 8W0035192C

Audi A4 B9 A5 F5 Q5 FY MMI Multimedia Player Head Unit SAT NAV CD SD 8W0035192C

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Audi TT 8J Front Left N/S Door Wiring Harness Cable Lom 8J0971030AE 8J0971030AB

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Part no. 8T0959792J

Audi A5 S5 8T Door Module Control Unit Front Passenger Side 8T0959792J

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Part no. 81A035466B

Audi A3 8V Bang Olufsen Audio AMP Amplifier Module Control Unit ECU 81A035466B

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Part no. 8W0959592M

Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Passenger Side 8W0959592M

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Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM

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Audi A5 8T 2.0 TFSI CDNB Automatic Gearbox Module Control Unit 8K0927155AA

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Audi A4 B8 2.0 TDI Diesel CAHA 170HP Engine ECU Kit Ignition + Key 03L906022MK

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Audi TT 8J Starter Motor Negative Battery Wiring Harness Cable 8J0971237A

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Part no. 8P7907115L-2

Audi A3 8P 1.8 TFSI CDAA 160HP Engine Module ECU Kit 8P7907115L Manual

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Part no. 04L907309AB

Audi Q3 8U 2.0 TDI DFUA 184HP Quattro Engine Control ECU 04L907309AB Automatic

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Part no. 4N0035736A

Audi A6 C8 SD SIM Card Double Twin USB Module Multimedia Reader Port 4N0035736A

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Part no. 04L907309L

Audi A4 B9 2.0 TDI DETA Quattro Engine Control Unit ECU 04L907309L Automatic

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Part no. 4KE907107AC

Audi A6 C8 Front Camera Driver Assistance Control Unit Module zFAS 4KE907107AR

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Part no. 5QA919283A

Audi A3 S3 8V VW Golf 7 Seat Leon 3 Parking Assist PDC Control Module 5QA919283A

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Part no. 03L906022MK

Audi A4 B8 2.0 TDI Diesel CAGA 143HP Engine Unit ECU 03L906022MK Automatic

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Part no. 06F971082F

Audi TT 8J 2.0 TFSI Petrol Fuel Injectors Wiring Harness 06F971082F

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Part no. 4F0907468D

Audi A6 C6 Diagnostic Interface Gateway Control Module Unit ECU 4F0907468D

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Part no. 4L0907289C

Audi Q7 4L Quattro S Line Comfort Module Convinience Control Unit 4L0907289C

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Part no. 8T0035223

Audi A5 8T Audio Amplifier Sound Booster Control Unit Module 8T0035223

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Part no. 8K0907063DC

Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907063DC

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Part no. 4L0907335

Audi Q7 4L Quattro S Line Keyless Entry Antenna Control Module 4L0907335

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Part no. 8T2035186P-1

Audi A4 B8 Radio Media Player Audio CD Head Unit Player Concert 8T2035186P

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Part no. 4H0907348C

Audi A8 D4 4H Relay Fuse Bracket Holder Junction Box 4H0907348C

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Part no. 8E0837220Q-1

Remote Key Audi A4 S4 B7 8E Radio Alarm Key Fob Opener Button 8E0837220Q

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Part no. 4L0907357B

Audi Q7 4L Headlight Level Range Adjustment Module Control Unit 4L0907357B

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Part no. 1J0919506N

Audi TT 8N Volkswagen Golf Mk4 Radiator Fan Relay Control Unit 1J0919506N

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Part no. 8S0035021B

Audi TT FV Navi SD GPS MMI Multimedia Head Unit Module 8S0035021B

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Part no. 8K0907064KG

Audi Q5 8R Body Control Module ECU Control Unit 8K0907064KG

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Audi Q2 GA 1.6 TDI DGTE 115 HP Engine Control Unit ECU 04L907445G Automatic

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Part no. 04L907445G

Audi Q2 GA 1.6 TDI DGTE 115 HP Engine Control Unit ECU 04L907445G Automatic

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Part no. 4G0907410

Audi A6 C7 4G A5 8T Garage Door Opening Module Controller Unit 4G0907410

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Part no. 8R0907441A

Audi Q5 8R Reversing Camera ECU Control Unit Module 8R0907441A

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Part no. 4L0910655D

Audi Q7 4L Air Module ECU Sensor Control Unit 4L0910655D

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Part no. 8H0972387

Audi A4 B7 Cabriolet Roof Motor Wiring Harness Wiring Loom 8H0972387

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Part no. 8P0919475D

Audi A3 8P Parking Distance Sensor Control Unit Module Rear 8P0919475D

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Part no. 8P0959655L

Audi A3 8P Air Module ECU Sensor Control Unit 8P0959655L

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Part no. 4F0907637

Audi A4 B7 Electronic Yaw Rate Sensor Module 4F0907637

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Part no. 8K0907144E

Audi A5 8T Dynamic Active Steering Module ECU 8K0907144E

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Part no. 8W5035035C

Audi A5 F5 Sat Navi MMI Multimedia Radio SD Reader Head Unit Harman 8W5035035C

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Part no. 8P0907357M

Audi A6 C6 Headlight Lamp Range Control Module Unit ECU 8P0907357M

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Part no. 8K0907063M

Audi A4 B8 A5 8T Body Control Comfort Unit Module Unit ECU 8K0907063M

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Part no. 3Q0907530AC-1

Audi Q2 GA Gateway Diagnostics Interface Control Module 3Q0907530AC

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Part no. 8K2907115AE-1

Audi A4 B8 A5 8F 2.0TFSI CDNC 211HP Engine Unit ECU 8K2907115AE Manual

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Part no. 81A035382

Audi Q2 GA Rear Centre Loudspeaker Subwoofer 81A035382

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Part no. 4E0035223N

Audi A8 D3 Amplifier BOSE Audio Sound System Module 4E0035223N

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Part no. 8E0910115J

Audi A4 B7 2.0 TFSI BGB 200HP Quattro Engine Control Unit ECU 8E0910115J Manual

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Part no. 8P0862335K

Bluetooth Interface Audi TT 8J A3 8P Multimedia Steuergerät ECU 8P0862335K

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Part no. 8P4971036K

Audi A3 S3 RS3 8P Front Door Harness Cable Loom Passenger Side 8P4971036K

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Part no. 8W0907064GC

Audi A5 F5 Central Body Control Module BCM Unit ECU 8W0907064GC

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Part no. 04L903141B

Audi A5 8T Alternator Generator Rack Mount Bracket 04L903141B

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Part no. 8L0959655L

Audi A3 S3 8L Front Crash Impact Air Module Sensor Unit Module 8L0959655L

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Part no. 8V0857273P

Audi A3 8V Multimedia Display Screen Radio Sat Nav Head Unit 8V0857273P

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