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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Price
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Part no. 4M0959795N
Audi A4 B9 Door Module Rear Left Right N/O/S Control Unit Module ECU 4M0959795N
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€32.95
€28.01
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Part no. 5Q0919275B-BLK
Audi Q2 GA Front Parking Sensor Assist Control Module Black 5Q0919275B
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€23.95
€22.75
Free delivery - Wed, Nov 05
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Part no. 5QA919283E
Audi A3 8V Park Parking Assist PDC Distance Control Unit Module 5QA919283E
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€28.95
€24.61
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Part no. 03L906022JM-1
Audi A4 B8 2.0 TDI 143HP CAGA Diesel Engine Control Unit ECU Kit 03L906022JM
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€146.95
€88.17
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Part no. 4H0907658C
Audi S3 8Y A5 F5 Q5 FY A8L 4H Air Quality Sensor Unit 4H0907658C
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€23.95
€22.75
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Part no. 8E0035111D
Audi TT 8J Radio Head Unit Navi CD DVD Player Changer 8E0035111D
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€23.95
€22.75
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Part no. 8T0907468H
Audi A4 B8 Gateway Interface Control Module Unit ECU 8T0907468H
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€23.95
€22.75
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Part no. 09G927750CA
Audi TT 8N Automatic Gearbox Module Control Unit ECU 09G927750CA
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€142.95
€85.77
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Part no. 06A903143P
Audi TT 8N Alternator Bracket Mount Holder 06A903143P
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€28.95
€24.61
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Part no. 4H0907412
Audi A8 D4 Ambient Lighting Control Module Unit ECU 4H0907412
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€23.95
€22.75
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Part no. 8J0035223E
Audi TT 8J Coupe Roadster Ultrasonic Sound Control Module ECU Unit 8J0035223E
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€42.95
€25.77
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Part no. 8T0959793G
Audi A4 B8 Door Module Front Left N/S Control Unit ECU 8T0959793G
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€23.95
€22.75
Free delivery - Wed, Nov 05
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Part no. 8X0971365
Audi A1 8X Driver's Seat Cable Seat Belt Warning Wiring Loom Harness 8X0971365
€42.95
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If paid before 14:00
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Part no. 4L0919475A
BCM Module Audi Q7 4L A6 C7 A8 4H Body Control Unit ECU 4L0919475A
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€142.95
€85.77
Free delivery - Wed, Nov 05
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Part no. 8W0907468J
Audi A4 B9 Gateway Control Unit Module ECU 8W0907468J
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€341.95
€290.66
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Part no. 8K0907551-1
Audi S4 B8 3.0 TFSI 333HP CAKA Quattro Engine ECU Kit 8K0907551 Automatic
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€246.95
€148.17
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 4L0035225AJ
Audi Q7 4L Radio Aerial Antenna Amplifier AM/FM 4L0035225AJ
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€23.95
€22.75
Free delivery - Wed, Nov 05
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Part no. 03G906056S
Audi A3 8P 1.9 TDI BLS 105HP Engine Control Module Unit ECU 03G906056S Manual
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€56.95
€34.17
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Part no. 8K0907064EB
Audi A5 8T Body Control Comfort Unit Module BCM Unit ECU 8K0907064EB
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€23.95
€22.75
Free delivery - Wed, Nov 05
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Part no. 4H0035670R
Audi A8L 4H Multimedia Radio Sat Nav CD Player SD SIM Head Unit 4H0035670R
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€455.95
€273.57
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If paid before 14:00
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Part no. 06L971627M
Audi Audi Q5 FY 2.0 TFSI QUATTRO Petrol Fuel Injectors Wiring Harness 06L971627M
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€23.95
€22.75
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If paid before 14:00
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Part no. 8K0959792H
Door Control Module Audi S4 A4 B8 A5 8T Front Right O/S Passenger 8K0959792H
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€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00
-15%
Part no. 8P0907279P
Audi A3 8P Gateway Interface Onboard Supply Control Module Unit ECU 8P0907279P
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€237.95
€202.26
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 8K0971228AH
Audi A5 8T Positive Battery Lead Terminal Cable Wiring 2.0 TFSI 8K0971228AH
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€66.95
€56.91
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 8K0959795F
Audi Q5 8R Rear Door Control Module Unit ECU Left Right N/O/S 8K0959795F
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€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 4L0910655B
Audi Q7 4L ECU Air Module Control Unit Crash Impact Sensor 4L0910655B
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€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 3Q0907338E
Audi S3 8V Front Headlight Lamp Range Control Module ECU 3Q0907338E
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€23.95
€22.75
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If paid before 14:00
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Part no. 81A035035G
Audi Q2 GA Sat Nav Multimedia Control Unit Module SD SIM MIB2 HIGH 81A035035G
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€807.95
€484.77
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 8K0971104AE
Audi A5 8T Rear Bumper PDC Parking Sensor Wiring Harness Loom 8K0971104AE
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€23.95
€22.75
Free delivery - Wed, Nov 05
If paid before 14:00
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Part no. 8P0035186AB
Audi A3 8P Multimedia Radio CD Player Head Unit 8P0035186AB
Promo price
€56.95
€34.17
Free delivery - Wed, Nov 05
If paid before 14:00
-15%
Part no. 8S0820043
Audi TT FV A/C Air Condition Climate Control Module Unit ECU 8S0820043
Promo price
€28.95
€24.61
Free delivery - Wed, Nov 05
If paid before 14:00
Part no. 02E911023Q
Audi A3 8P Engine Starter Motor Actuator 2.0 TDI Diesel 02E911023Q
€28.95
Free delivery - Wed, Nov 05
If paid before 14:00
Part no. 8P1862335
Audi A3 8P Telematics Bluetooth Module Control Unit ECU 8P1862335
Product currently unavailable
Part no. 8T1035223A
Audi A5 8T Speaker Amplifier AMP Bang & Olufsen 8T1035223A
Product currently unavailable
Part no. 8W2035043E
Audi A4 B9 MMI Multimedia Sat Nav Navigation Control Head Unit 8W2035043E
Product currently unavailable
Part no. 05L907309B-1
Audi Q2 GA 35 TDI DTTC 150HP Quattro Engine ECU Kit 05L907309B Ignition + Key
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Part no. 05L903026B
Audi Q2 GA 3.0 TDI DTTC Diesel Engine Alternator Generator 05L903026B
Product currently unavailable
Part no. 7N0907530AL
Audi TT 8J Gateway Control Unit Module 7N0907530AL
Product currently unavailable
Part no. 4M0907594J
Audi Q5 FY Top Sunroof Opener Control Module Unit ECU 4M0907594J
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Part no. 02M911021S
Audi TT FV Starter Motor Engine Diesel 02M911021S
Product currently unavailable
Part no. 04C903023T
Audi A1 8X 1.4 TFSI CZCA Alternator Generator 04C903023T
Product currently unavailable
Part no. 8P0959433
Audi A3 8P Body Control Comfort Unit Module BCM Convenience Unit 8P0959433
Product currently unavailable
Part no. 8R2035666L
Audi A5 8T Harman Multimedia Sat Navi Radio CD Player Head Unit 8R2035666L
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Part no. 03L906022NP-1
Audi A4 B8 2.0 TDI Diesel CAHA 170HP Engine ECU Kit Ignition + Key 03L906022MK
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Part no. 4G1035192A
Audi A7 4G Multimedia CD Radio Control Head Unit 4G1035192A
Product currently unavailable
Part no. 8P0959802F
Audi A3 8P Door Window Lifter Regulator Motor Front Left N/S 8P0959802F
Product currently unavailable
Part no. 1K0906093F
Fuel Pump Control Audi A3 8P VW Golf Mk6 Relay Module Unit ECU 12V 1K0906093F
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Part no. 8K0907063P
Audi A5 8T Body Comfort Control BCM Onboard Supply Module Unit ECU 8K0907063P
Product currently unavailable
Part no. 8P0959801F
Audi A3 8P Door Window Lifter Regulator Motor Front Right O/S 8P0959801F
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Part no. 8T0919603A
Audi A4 B8 AV10NEO Display Screen Radio Multimedia Navigation Sat 8T0919603A
Product currently unavailable
Part no. 03L903023A
Audi A3 8P Alternator Generator Diesel Engine Electrical Unit 03L903023A
Product currently unavailable
Part no. 8K0907064JJ
Audi RS4 B8 Body Control Comfort Unit Module BCM Unit ECU 8K0907064JJ
Product currently unavailable
Part no. 4F0035053B
Audi A4 A5 A6 Q5 Q7 Radio Control Head Unit Harman Becker 4F0035053B
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Part no. 8J0907115N-1
Audi TT Mk2 8J 2.0 TFSI BWA 200HP Engine ECU Kit Ignition + Key 8J0907115N
Product currently unavailable
Part no. 4F0907637A
Audi A6 C6 Yaw ESP Rate Sensor Module Unit Control ECU 4F0907637A
Product currently unavailable
Part no. 3C0906093C
Audi TT Mk2 8J Petrol Engine Fuel Pump Control Unit Module 3C0906093C
Product currently unavailable
Part no. 03L903017E
Audi A4 B8 A5 8T Q5 8R Quattro Alternator Generator 2.0 TDI 03L903017
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Part no. 8K0907364A
AUDI S4 B8 Quattro Dynamic Suspension Electric Damper Control Module 8K0907364A
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Part no. 8T2035195
Audi A4 B8 Head Unit Radio CD Player Symphony Stereo Audio Player 8T2035195
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Part no. 4H0907601E
Audi S3 8Y 2.0 TFSI DNFF Petrol Engine Sound Noise Actuator 4H0907601E
Product currently unavailable
Part no. 03L906018JH-1
Audi A5 8T 2.0 TDI CGLC Engine Unit ECU Kit 03L906018JH Key Ignition Lock
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Part no. 5Q0919294K
Audi RS3 8V PDC Parking Distance Control Sensor Module Unit ECU 5Q0919294K
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Part no. 8P0919475G
Audi S3 8P Control Unit PDC Parking Sensor Module 8P0919475G
Product currently unavailable
Part no. 4G8959760
Audi A6 C7 Front Seat Control Module Unit Right O/S 4G8959760
Product currently unavailable
Part no. 03G906016HS-1
Audi A6 C6 2.0 TDI BRE 140HP Engine Control Module ECU Set 03G906016HS Manual
Product currently unavailable
Part no. 8E0907307F
Audi A4 B8 Seat Exeo Servotronic Relay Control Unit 9 Pin 8E0907307F
Product currently unavailable
Part no. 03C903023S
Audi A1 8X 1.4 TSI CAXA Alternator 03C903023S
Product currently unavailable
Part no. 4E0910888PX
Audi Q7 4L Navigation Sat Stereo Radio Audio Head Unit CD Player 4E0910888PX
Product currently unavailable
Part no. 06H911021D
Audi A4 B8 Petrol Engine Starter Motor Actuator 1.8 2.0 TFSI 06H911021D
Product currently unavailable
Part no. 4F0919283H
Audi Q7 4L Parking Control Unit ECU Module Sensor PDC 4F0919283H
Product currently unavailable
Part no. 8T0959760E
Audi A5 8T Front Seat Control Module Unit Left Right N/O/S 8T0959760E
Product currently unavailable
Part no. 8K0915181
Audi A4 B8 A5 8T A6 C6 Battery Negative Terminal Cable Wiring Wire 8K0915181
Product currently unavailable
Part no. 8K0907063DH
Audi A5 8T Onboard Comfort Supply Control Module Unit ECU 8K0907063DH
Product currently unavailable
Part no. 8J0035223C
Audi TT 8J Audio Amplifier Premium Sound Booster Control Unit Bose 8J0035223C
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Part no. 06K907425B
Audi S1 8X 2.0 TFSI CWZA 231HP Quattro Engine Control Unit ECU 06K907425C
Product currently unavailable
Part no. 8R0919604
Audi A5 8T Multimedia Radio Sat Nav Screen Display Head Unit 8R0919604
Product currently unavailable
Part no. 8J0959433B
Audi TT 8J BCM Body Comfort Convenience Module Unit ECU 8J0959433B
Product currently unavailable
Part no. 09D927750KC
Audi Q7 4L 3.0 TDI CASA Automatic Gearbox Control Module Unit ECU 09D927750KC
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Part no. 4L0910401M-1
Audi Q7 4L 3.0 TDI BUG 233HP Quattro Engine ECU Kit 4L0910401M Lock + Key
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Part no. 04L903141B
Audi A5 8T Alternator Generator Rack Mount Bracket 04L903141B
Product currently unavailable
Part no. 8K0955559D
Audi A6 C6 Front Windscreen Rain Light Solar Sensor Unit 8K0955559D
Product currently unavailable
Part no. 8H0959433M
Audi A4 B7 Body Comfort Control Module BCM Unit ECU 8H0959433M
Product currently unavailable
Part no. 8P0907063R
Audi TT 8J BCM Body Control Module Unit ECU 8P0907063R
Product currently unavailable
Part no. 4F0907280B
Audi Q7 4L On Board Onboard Supply Module Control Unit ECU 4F0907280B
Product currently unavailable
Part no. 8N0959655D
Audi TT 8N Air Module Control Module Unit ECU 8N0959655D
Product currently unavailable
Part no. 03L906022MK
Audi A4 B8 2.0 TDI Diesel CAGA 143HP Engine Unit ECU 03L906022MK Automatic
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Part no. 06L907425C-1
Audi Q5 FY 2.0 TFSI DAXB 252HP Quattro Engine ECU Kit Gateway + Key 06L907425C
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Part no. 6C0907361D
Audi A1 8X Fuse Box Control Module Relay Box 6C0907361D
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Part no. 8P0862335D
Audi A4 B7 Bluetooth Module Interface Control Unit Hands Free 8P0862335D
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Part no. 09D927750FS
Audi Q7 4L Automatic Transmission Module Controller Unit 09D927750FS
Product currently unavailable
Part no. 8T0971365Q
Audi A5 8T Seat Cable Front Left Right N/O/S Wiring Loom Harness 8T0971365Q
Product currently unavailable
Part no. 079911021G
Audi RS4 B8 Starter Motor Petrol Engine Electrical Unit Actuator 079911021G
Product currently unavailable
Part no. 8E0907279J
Audi A4 B7 Body Comfort Control Body Power Supply Module Unit BCM ECU 8E0907279J
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Part no. 06E903016N
Audi A4 B8 3.2 FSI Alternator Generator 06E903016N
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-5%
Part no. 1K0937125D
Audi A3 8P Engine Bay Fuse Box 1K0937125D
Product currently unavailable
Part no. 06B903016AB
Audi A4 B7 Petrol Engine Alternator Generator Electric Unit 14V 140A 06B903016AB
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Part no. 8W0035454
Audi A4 B9 Front Centre Dashboard Tweeter Speaker 8W0035454
Product currently unavailable
Part no. 8K0959792N
Audi Q5 8R Door Lock Control Module Unit ECU Front Left N/S 8K0959792N
Product currently unavailable
Part no. 8N8962267E
Audi TT 8N Body Comfort Convenience Module Unit CCM ECU 8N8962267E
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 .