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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Part no. 8K0971035B
Audi A4 B8 Front Driver's Door Wiring Harness Loom Cable Right O/S 8K0971035B
£56.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4K0941572DD
Audi A5 F5 Headlight Lamp LED Ballast Control Power Module Unit ECU 4K0941572DD
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 3AA962243D
Audi A8 D4 Boot Trunk Lid Tailgate Lift Control Unit Module ECU 3AA962243D
£28.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K2907115S
Audi A4 B8 8K A5 8T 2.0 TFSI CDNB 180HP Engine Control ECU 8K2907115S Manual
£75.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0907279C
Audi Q7 4L Onboard Supply Body Control Comfort BCM Unit Module 4F0907279C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5QS915181
Audi A3 S3 8Y Battery Negative Terminal Cable Wire 5QS915181
£47.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4S0907441B
Audi A8 D4 4H Rear View Reverse Parking Camera Module Control Unit 4S0907441B
£75.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0907064CQ
Audi A5 8T Body Control Comfort Unit Module BCM Convenience Unit ECU 8K0907064CQ
£75.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907658
Audi A3 8V A5 8T A6 A7 Air Quality Sensor Control Unit 4H09076588
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P0907357C
Audi A3 8P A6 C6 Headlight Levelling Module Control Unit ECU 8P0907357C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4M0959593N
Audi Q7 4M Front Door Control Module Unit ECU Driver's Side 4M0959593N
£47.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P0035785
Audi A3 8P MMI Multimedia Interface Unit Module Control ECU 8P0035785
£37.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0959793D
Audi A4 B8 A5 S5 8T Door Module Control Unit Front Left N/S 8K0959793D
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 7P0915181B
Audi A1 8X Negative Battery Terminal Cable Wiring 7P0915181B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0919603G
Audi A5 8T Display Screen Radio Multimedia Navigation Display 8T0919603G
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K5035225C
Audi A4 B8 Antenna Amplifier Diversity 8K5035225C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H4907357E
Audi A6 C7 Front Lamp Headlight Control Module Unit ECU Controller 4H4907357E
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0035670T
Audi A8 D4 Reader Radio CD System Audio MMI Multimedia Head Unit 4H0035670T
£332.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K2907115L-1
Audi A4 B8 A5 8T 8K 2.0 TFSI CDNC 211HP Engine Control ECU Kit 8K2907115L Manual
£151.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F1971687S
Audi A6 C6 Rear Door Wiring Left Right N/O/S Harness Loom Cable 4F1971687S
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. RHD-8K2971845B
Audi A4 B8 S5 8T Fuse Box Control Module Relay Box 8K2971845B
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0035223AP
Audi A4 S4 B8 Audio Amplifier Sound Booster Control Unit Module 8T0035223AP
£142.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4L0971846A
Audi Q7 4L Boot Trunk Lid Holder Tailgate Wiring Loom Bracket 4L0971846A
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5WA959651A
Audi A3 8Y VW Golf Mk8 Front Air Module Crash Impact Sensor 5WA959651A
£28.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5Q0915181C
Audi A3 8V Negative Battery Cable Terminal Clamp Wire 5Q0915181C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0907064KH
Audi Q5 8R BCM Body Control Module Unit ECU 8K0907064KH
£151.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4G0907589C-1
Audi A7 4G 3.0 TDI CGQB 313HP Engine Module Unit ECU Kit 4G0907589C Automatic
£284.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 05L907309-2
Audi A4 B9 2.0 TDI DTNA 163HP Engine Control Unit ECU 05L907309 Automatic
£56.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4G5971687BQ
Audi A6 C7 4G Rear Door Harness Wiring Loom Cable Left N/S 4G5971687BQ
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V0035736
Audi A3 8V Music Interface Multimedia Connection Module 8V0035736
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4E0941817A
Audi RS4 B8 Front Door Wiring Harness Loom Plug Socket 4E0941817A
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8U0907468BA
Audi Q3 8U Gateway Control Module Unit ECU 8U0907468AQ
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0959593H
Audi A4 S4 B9 Front Door Control Module Unit Driver's Side 8W0959593H
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0959793N
Audi Q5 8R Front Door Module Control Unit ECU Driver's Side 8K0959793N
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P4971693AB
Audi A3 8P Door Wiring Harness Loom Rear Left Right N/O/S Cabling 8P4971693AB
£32.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F1971030AF
Audi A6 C6 Front Passenger Door Wiring Left N/S Harness Loom Cable 4F1971030AD
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4L0959655C
Audi Q7 4L Air Module Control Unit ECU Impact Sensor 4L0959655C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V0937548
Audi A3 S3 RS3 8V Bettery Terminal Fuse Unit 8V0937548
£28.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 7P0907652
Yaw Sensor Audi Q7 4L Rotation Rate Unit Module 7P0907652
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0907401C
Audi A5 8T 3.0 TDI CCWA Quattro 240HP Engine Control ECU 8K0907401C Manual
£142.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 03L903023
Audi A3 8V Diesel Engine Starter Alternator Electrical 14V 140A 03L903023
£37.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F1971036F
Audi A6 C6 Front Passenger Door Wiring Left N/S Harness Loom Cable 4F1971036E
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0907468AD
Audi A4 B8 Gateway Interface Control Unit Module ECU 8T0907468AD
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V4971687K
Audi A3 RS3 8V 5Dr Door Harness Loom Wiring Rear Left Right N/O/S 8V4971687K
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 022906032HE
Audi TT 8J 3.2 FSI BUB Quattro 250HP Engine Control ECU 022906032HE Automatic
£237.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0971687A
Audi A6 C6 Door Window Motor Wiring Cable Loom Front Right O/S 4F0971687A
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8W0959592H
Audi A4 B9 A5 F5 Front Door Module Control Unit ECU Passenger Side 8W0959592H
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4H0907355D
Audi A7 4G A8L 4H Ad Blue Control Module Unit ECU 4H0907355D
£28.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F1971035C
Audi A6 C6 Front Door Wiring Harness Loom Cable Right O/S 4F1971035C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8V0035399C
Audi A3 8V A-Pillar Speaker Tweeter Front Left Right N/O/S 8V0035399C
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5Q0937084DC
Audi A3 RS3 8V Body Control Module BCM Control Unit ECU Power Supply 5Q0937084DC
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8J0907115AJ-1
Audi TT Mk2 8J 2.0 TFSI CESA 211HP Engine Control Unit ECU 8J0907115AJ Manual
£379.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F0971845A-1
Audi A6 S6 C6 Body Comfort Module Convenience Control Unit 4F0907289J
£18.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4F1971035N
Audi A6 C6 Front Driver Side Door Wiring Right O/S Harness Loom Cable 4F1971035L
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8T0907468AB
Audi A4 B8 2.0 TDI CAGA Gateway Interface Control Module Unit ECU 8T0907468H
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 5Q0959651
Audi A3 8V Front Impact Sensor Crash Detection Module Unit 5Q0959651
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 3Q0907338E
Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338E
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8S0907468A
Audi TT FV Gateway Control Module Unit ECU 8S0907468A
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 4E0907279A
Audi Q7 4L Body Control Comfort Unit Module BCM Convenience Unit ECU 4E0907279A
£23.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 81A035035G
Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
£664.95
Free delivery - Tue, Dec 02
If paid before 14:00
Part no. 8P0959655J
Audi A3 E 104 T Air Module ECU Sensor Control Unit 8P0959655J
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8X0035225J
Audi A1 8X Antenna Booster Amplifier Upper Rear Right O/S 8X0035225J
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8K0959792D
AUDI S5 8T Door Control Module ECU Front Left N/S 8K0959792D
£13.95
Free delivery - Mon, Dec 01
If paid before 14:00
Part no. 8P0907279F
Audi A3 8P Fusebox Body Control Comfort Module BCM Unit ECU 8P0907279F
Product currently unavailable
Part no. 7N0907530N
Gateway Module Audi A3 8P Volkswagen Tiguan Central Control Unit ECU 7N0907530N
Product currently unavailable
Part no. RHD-8X2035711C
Audi A3 8V Microphone Cable Wiring Loom Cable Harness 8X2035711C
Product currently unavailable
Part no. 4L0907290A
Audi Q7 4L Door Control Unit Module ECU Front Right O/S 4L0907290A
Product currently unavailable
Part no. 8N8035223A
Audi TT 8N Amplifier BOSE Premium Audio Sound System Module 8N8035223A
Product currently unavailable
Part no. 03G911023A
Audi A4 B7 2.0 TDI Starter Motor Engine Diesel 03G911023A
Product currently unavailable
Part no. 8P4971030F
Audi A3 8P Front Door Wiring Right O/S Harness Loom Cable 8P4971030F
Product currently unavailable
Part no. 8W0941823F
Audi A4 B9 Power Distribution Fuse Box Battery 8W0941823F
Product currently unavailable
Part no. 4H0919475L
Audi A6 C7 PDC Parking Distance Control Module Unit ECU 4H0919475L
Product currently unavailable
Part no. 05L907309B-1
Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
Product currently unavailable
Part no. 8XA035192F-1
Audi A1 8X Stereo Sat Navi Navigation Radio Head Unit 8XA035192F
Product currently unavailable
Part no. 8K0907064GH
Comfort Unit Audi A4 S4 B8 Q5 8R Central Control Module BCM Unit ECU 8K0907064GH
Product currently unavailable
Part no. 057911024
Audi A4 B9 A5 F5 Q7 4M Q5 FY VW Volkswagen Touareg Mk3 Starter Motor 057911024
Product currently unavailable
Part no. 4G0919158M
Audi RS6 C7 Air Condition A/C Climate Control Module Unit 4G0919158M
Product currently unavailable
Part no. 80A907217A
Audi Q5 FY Front Windscreen Windshield Lane Assist Camera 80A907217A
Product currently unavailable
Part no. 8R0907160
Audi Q5 8R Engine Noise Control Module Unit ECU 8R0907160
Product currently unavailable
Part no. 7P0915181C
Audi A1 8X HV Battery Cable Loom Harness Wiring Negative Terminal 7P0915181C
Product currently unavailable
Part no. 8K0959792P
Audi A4 S4 B8 Q5 8R Front Right Door O/S Control Unit Module ECU 8K0959792P
Product currently unavailable
Part no. 03L903017E
Audi A4 B8 A5 8T Q5 8R Quattro Alternator Generator 2.0 TDI 03L903017
Product currently unavailable
Part no. 4M0941828H
Audi Q7 4M Fuse Box Battery Terminal Cover Housing 4M0941828H
Product currently unavailable
Part no. 1K0907530K
Audi A3 8P Central Gateway Control Unit Module Relay ECU 1K0907530K
Product currently unavailable
Part no. 4L0910655B
Audi Q7 4L ECU Air Module Control Unit Crash Impact Sensor 4L0910655B
Product currently unavailable
Part no. 8R0907333
Audi Q5 R8 3.0 TDI CGQB Seat Heater Control Module Unit 8R0907333
Product currently unavailable
Part no. 03L903016A
Audi Q5 8R 2.0 TDI Alternator Generator 14V 180A Valeo 03L903016A
Product currently unavailable
Part no. 8K0959793P
Audi A4 S4 B8 Q5 8R Front Left Door N/S Control Unit Module ECU 8K0959793P
Product currently unavailable
Part no. 4F0919603B
Audi A6 C6 Display Screen Multimedia Navigation Dashboard Unit 4F0919603B
Product currently unavailable
Part no. 4F0035053B-1
Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B
Product currently unavailable
Part no. 04L907309AB-4
Audi Q3 8U 2.0 TDI DFTA 150HP Quattro Engine Control ECU 04L907309AB Manual
Product currently unavailable
Part no. RHD-4G0919607J
Audi A6 C7 Head Up Navigation Multimedia Screen Display Unit 4G2919601C
Product currently unavailable
Part no. 5Q0959593D
Audi TT FV A3 8V Door Module Control Unit Front Right O/S Side ECU 5Q0959593D
Product currently unavailable
Part no. 4L0907282A
Audi A7 4G Q7 4L 3.0 TDI Glow Plug Pre Heat 651 Relay Unit 9 Pins 4L0907282A
Product currently unavailable
Part no. 4M0959795N
Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
Product currently unavailable
Part no. 059903018R
Audi A6 C7 3.0 TDI CLAA Alternator Generator Engine Unit Hitachi 059903018R
Product currently unavailable
Part no. 03G903016G
Audi Q5 8R 2.0 TDI CJCA Diesel Engine Alternator Generator 03G903016G
Product currently unavailable
Part no. 8S0971029C
Audi TT FV Front Driver Side Door Wiring Loom Harness 8S0971029C
Product currently unavailable
Part no. 83A823531
Audi Q3 F3 Front Bonnet Hood Center Lock Bowden Cable 83A823531
Product currently unavailable
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 .