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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Part no. 4F0919805

Audi A4 B8 Smart Card Reader Smart Card System TV 4F0919805

€32.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 5Q0937084AE

Audi A3 8V Module BCM Body Control Unit Module ECU 5Q0937084AE

€32.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 03L903017E-1

Audi A4 B8 Avant 2.0 TDI Quattro Alternator Generator 03L903017

€56.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 80A035223A

Audi Q5 FY Sound System Audio Amplifier Amp Unit Bang & Olufsen 80A035223A

€332.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8T2035110B

Audi A5 8T Radio Head Unit Navi CD DVD Player Changer 8T2035110B

€47.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8K0959651

Audi A5 8T A4 B8 Crash Impact Sensor Control Unit 8K0959651

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8E0035411B

Audi A4 B7 Door Speaker Tweeter Front Left Right N/O/S 8E0035411B

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 81A035035G

Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G

€807.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4F0941824

Audi S6 C6 Wirie Cable Fuse Box Holder Support 4F0941824

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8U0971104C

Audi Q3 8U Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 8U0971104C

€42.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 80A906093

Audi Q5 FY Fuel Pump Control Unit Module ECU Diesel Kuhnke 80A906093

€32.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8P0035503M

Audi A3 8P Bluetooth Antenna Module Control Unit 8P0035503M

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8T0907468T

Audi A4 B8 A5 8T Gateway Control Unit Module ECU 8T0907468T

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4M0959795N

Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N

€32.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4L0907468B

Audi Q7 4L Gateway Module Central Control Unit 4L0907468B

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4M0959595N

Audi Q7 4M Rear Door Control Module Unit ECU Left Right N/O/S 4M0959595N

€32.95

Free delivery - Wed, Nov 05

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, Nov 05

If paid before 14:00

Part no. 8K0907637A

Audi A5 8T Acceleration Yaw Rate Sensor Module Control Unit ECU 8K0907637A

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 3Q0907530AA

Audi Seat Skoda Volkswagen Gateway Control Unit Module ECU 3Q0907530AA

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8X0959795C

Audi Q3 8U Door Module Rear Left Door Control Unit 8X0959795C

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 079903805AF

Audi A5 S5 S5 8T 4.2 FSI Alternator Bracket Mount Holder 079903805AF

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4G8959792A

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

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4H0907063BA

Audi A6 C7 Onboard Supply BCM Body Control Module Unit ECU 4H0907063BA

€32.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8K2971228G

Audi A5 8T 1.8 TFSI Starter Alternator Harness Wiring Cable 8K2971228G

€70.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8K0959655L

Audi A4 B8 Air Module Control Unit ECU Crash Control 8K0959655L

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 4L0959792B

Audi Q7 4L Door Control Unit Module ECU Passenger Side 4L0959792B

€23.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 7E0907655A

Audi TT 8J ESP YAW Lateral Acceleration Sensor 7E0907655A

€28.95

Free delivery - Wed, Nov 05

If paid before 14:00

Part no. 8K0907064CC

Audi A4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064CC

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Part no. 4F0907279D

Audi Q7 4L Comfort Control Module Unit ECU 4F0907279D

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Part no. 5Q0962131

Antenna Control Module Audi Q3 RSQ3 F3 Line Keyless Entry 5Q0962131

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Part no. 5Q0959593B

Audi A3 8V Door Module Control Unit Front Driver Side 5Q0959593B

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Part no. 4M0906093N

Audi A4 S4 B9 Petrol Fuel Pump Control Unit Module ECU 4M0906093N

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Part no. 4F0907637A

Audi A6 C6 Yaw ESP Rate Sensor Module Unit Control ECU 4F0907637A

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Part no. 8H0035225R

Audi A4 B7 Aerial Antenna Amplifier Module 8H0035225R

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Part no. 0AM911024A

Volkswagen Passat B7 Engine Starter Motor Actuator Starter 0AM911024A

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Part no. 8P0919283D

Audi A3 8P PDC Parking Distance Control Sensor Module Unit ECU 8P0919283D

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Part no. 4G0907553F

Audi RS6 C7 4G Air Suspension Module Regulation Control Unit WABCO 4G0907553F

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Part no. 5Q0919283E

Parking Distance Audi A3 8V TT Mk3 Seat Leon MK3 Control Module 5Q0919283E

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Part no. 8K0971030M

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

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Part no. 8T2035186C

Audi A4 B8 A5 8T Radio Media Player Audio CD Head Unit Player Concert 8T2035186C

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Part no. 8W0907217C

Audi A4 S4 B9 Front Windscreen Windshield Lane Assist Camera 8W0907217C

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Part no. 059906627L

Audi Q7 4L Quattro Diesel 3.0 TDI Charge Air Pressure Valve Actuator 059906627L

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Part no. 1K0937124P

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

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Part no. 4F0035769B

Audi A6 C6 CD DVD Navigation Sat Nav Head Unit 4F0035769B

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Part no. 8K0919475AA

Audi A4 B8 PDC Assistance Parking Distance Control Module Unit ECU 8K0919475AA

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Part no. 079911021D

Audi Q7 4L Engine Starter Motor Actuator Starter 079911021D

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Part no. 4E0906093B

Audi S8 D3 Petrol BSM 5.2 FSI Fuel Pump Control Module 4E0906093B

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Part no. 06D903016AB

Audi A4 B7 1.8 T BFB Petrol Engine Alternator Generator 06D903016AB

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Part no. 8E0971687L

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

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Part no. 4L0910110A

Audi Q7 4L Radio Head Unit Navi CD DVD Player Changer 4L0910110A

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Part no. 420919275-IWH

Audi A4 A5 Q7 Rear Bumper PDC Parking Sensor Ibis White - Y9C 420919275

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Part no. 80A915459

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

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Part no. 8E0959433CR

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

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Part no. 4L1910401D-1

Audi Q7 4L 3.0 TDI CASA 240HP Quattro Engine ECU Kit 4L2910401B Lock + Key

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Part no. 4H0907063DH

Audi A7 4G8 BCM Body Control Module Unit ECU 4H0907063DH

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Part no. 8T0959760C

Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760C

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Part no. 8K0907064GE

Audi A5 S5 8T BCM Body Control Module Unit ECU 8K0907064GE

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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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Part no. 5Q0971250AB

Audi A3 S3 8V Negative Battery Terminal Earth Cable Lead Wiring 5Q0971250AB

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Part no. 4G8959793E

Audi A6 C7 Front Door Control Module Unit ECU Driver's Side 4G8959793E

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Part no. 8K0907801L

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

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Part no. 8W0035454A

Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454A

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Part no. 8K0959795B

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

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Part no. 02E911024A

Audi A3 8V 2.0 TDI Engine Starter Motor Bosch 02E911024A

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Part no. 8E9035223D

Audi A4 B7 Audio Radio Aerial Amplifier Control Unit Harman Becker 8E9035223D

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Part no. 8K0955559D

Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D

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Part no. 8H0035225S

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

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Part no. 1K0907530Q

Gateway Module Audi A3 8P Volkswagen Golf Mk5 Control Unit 1K0907530Q

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Part no. 4G0907355F

Audi A7 4G Fuse Box Relay Control Unit Module 4G0907355F

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Part no. 8N0959655D

Audi TT 8N Air Module Control Module Unit ECU 8N0959655D

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Part no. 8K0907637D

Yaw Sensor Audi A4 B8 A5 8T ESP Rotation Rate Unit Module 8K0907637D

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Part no. 80A971104A

Audi Q2 GA Rear Bumper PDC Parking Sensor Wiring Harness Loom Cable 80A971104A

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Part no. 8E0907279N

Audi A4 B7 Body Control Module BCM Comfort Control Unit Power Supply 8E0907279N

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Part no. 4G0035061S

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

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Part no. 8P0959433C

Audi S3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433C

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Part no. 8K0907063P

Audi A5 8T Body Comfort Control BCM Onboard Supply Module Unit ECU 8K0907063P

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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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Part no. 8S0907159

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

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Audi Q7 4L Air Suspension Adjustment Module Control Unit 4L0907553E

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Part no. 4F0035053B

Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B

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Audi A7 S7 4G8 A8 D4 4.0 TFSI Starter Motor Denso Petrol Engine 079911024

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Part no. 04L903017E

Audi A4 8K 2.0 TDI Diesel Engine Alternator Generator 04L903017E

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Part no. 03L911024

Audi A4 B8 A5 8T Diesel 2.0 TDI Starter Motor Manual 03L911024

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Audi A4 S4 B9 A5 A5 F5 3.0 Petrol Alternator Generator 14V 150A 06E903024L

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Audi A4 B7 Window Antenna Amplifier Module 8E5035225D

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Part no. 8T0971365Q

Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365Q

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Part no. 6C0941824D

Audi A1 S1 8X Fuse Relay Box Module Unit 6C0941824D

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

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Audi A3 8P PDC Parking Assistance Distance Control Module Unit ECU 8P0919475M

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Audi TT 8N Body Comfort Convenience Module Unit CCM ECU 8N8962267E

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Audi A4 B7 2.0 TDI Diesel Engine Control Unit ECU Module Manual 03G906016JD

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Audi A4 B8 A5 8T 2.0 TDI Diesel Engine Starter Motor Assembly Unit 03L911024A

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Audi A5 8T Navigation System Car Sat Nav Computer Head Unit CIC 4G0035061B

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Audi A6 S6 RS6 C6 4F Convienience Comfort Module Unit ECU 4F0910289N

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Audi A4 7B 2.0 TFSi D6G519 Engine Starter Motor 06D911023

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Showing 595-693 of 1339 products

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 .

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