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. 9151517
BMW 5 Series E61 Touring Body Control Module ECU Unit E6X KBM High 9151517
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Amplifier Unit BMW E87 E90 E91 Top Hifi System Harman Becker Control 9121635
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BMW X3 X5 Z4 E39 E46 E53 E83 E85 GPS Navigation Computer DVD 6920182
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Radio Player Mercedes W204 Audio 20 Navi CD Player Head Unit A2049069701
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Battery Cable BMW E63 E64 Negative Minus Pole IBS 6947497
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MINI One R50 Engine W10 1.6 90HP Engine ECU Kit DME 7527610 + EWS + Keys Manual
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Mercedes Class W221 Rear Fuse Box Control Unit Module SAM A2219006902
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BMW 1 3 Series E81 E87 LCI E90 120d 320d N47 Engine Wiring Loom 7802153 7580194
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BMW E87 E90 118i 318i N46 129HP Engine ECU KIT DME 7561834 CAS2 + Key Manual
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CD Radio Mercedes Vito W639 Sprinter W906 Audio Stereo Head Unit A9068200286
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Part no. 8512291-2
BMW 3 Series E90 E91 LCI N47N 320d 184HP ECU KIT DDE CAS 3 Key 8512291 Manual
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BMW E60 E90 Alternator Generator 150A 335d 525d 530d 535d M57N2 7800308
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BMW E87 LCI ECU Light Module Footwell NSW PL2 FRM II Lear 9153778
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Mercedes-Benz W212 SAM Fuse Prefuse Box Relay Control Unit A2125406250
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Mercedes Vito W639 Fuse Box Relay Control Unit Front SAM Module A6399000800
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Part no. 9131716
BMW 5 6 E60 E61 E63 E64 M-ASK M-Audio CD Radio System Controller 9131716
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BMW 5 6 7 E60 E63 E65 Adaptive Light Control Unit Module LM E6X 9153273
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Part no. 7367747
BMW F15 F31 F36 F45 Rear Boot Trunk Lid Tailgate Control Unit Module ECU 7367747
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Part no. 7595179-3
BMW E81 E87 LCI E90 N43 118i 318i Petrol ECU Kit DME 7595179 CAS3 + Key
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BMW F10 CIC Professional Unit Sat Nav Infotainment Radio Player Head 9237173
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BMW 5 6 Series E60 E61 E63 Driver Side Door Airbag Control Unit Module 6963013
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BMW X5 E53 E60 E65 X3 E83 Adaptive Headlight ECU Control Unit 6934122
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BMW E82 E90 E92 Aerial Antenna Amplifier Diversity DAB Control Unit 6928935
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Part no. rhd-A0009050354
Battery Cable Mercedes W204 W207 Negative Lead Terminal Harness A0009050354
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Part no. 9293307
BMW F30 REM Rear Electronic Module Fuse Box Control Unit V2 9293307
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Part no. 06F903023F
Volkswagen Golf 5 Audi A3 8P 1.9 2.0 TDI Engine Alternator Generator 06F903023F
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Part no. 8584555
Mini R55 R56 LCI R60 R61 D N47N Engine Injector Module Wiring Harness Cable
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Part no. A6395450191
Mercedes Vito W639 Positive Battery Terminal Cover Cap Trim Red A6395450191
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Part no. 6989160
BMW 7 Series E65 E66 Rear Bumper PDC Parking Ultrasonic Sensor Black Sapphire
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Part no. 2990415
BMW X1 E84 Front Door Handle Bowden Pull Cable Wiring 2990415
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Part no. 6948351
BMW E60 M-Audio System Controller Navigation Head Unit 6948351
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Part no. 7579142-1
BMW E87 LCI E90 120i 320i Petrol N43 Engine ECU KIT DME 7579142 CAS3 Key
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Part no. 3417417
BMW X3 Series E83 Boardmonitor Central Information Display Screen 6,5"
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Navigation System BMW X3 E83 Z4 E85 Mini R50 R52 DVD GPS Computer Unit
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Part no. 6916097-1
BMW 7 X5 Series E53 E65 Bulb Parking Light Headlight Front Lighting Cover
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Part no. 9226328-1
BMW E90 LCI Junction Box Body Control Module H1 PL2RR JBBFE IIIR 9226328
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Part no. 8512047-2
BMW 3 Series E90 E91 LCI N47N 320d ECU Basic DDE Control Unit 8512047 Manual
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Part no. 2622869
BMW F20 F21 LCI Mini F55 F56 Top Hifi Audio Amplifier Harman Kardon 2622869
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Part no. 9131852
Mini R50 R53 6-Disc CD Changer Multichanger With Magazine 9131852
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Part no. A2035454901
Mercedes-Benz CLC-Class CL203 Fuse Box Module SAM Unit A2035454901
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Part no. 6957759
BMW E60 E61 E63 Driver Side Door Air Module Control Unit Module 6957759
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Part no. A2038219751-2
Mercedes W203 CL203 Roof Alarm Motion Sensor Cover Trim Black A2038219751
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Part no. 9119355
BMW E60 E61 E63 E81 E87 E90 E91 DAB Radio Tuner Module 9119355
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Part no. A7252701905
Mercedes W213 Mechatronic Automatic Gearbox Control Unit Module A7252701905
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Part no. 7553735
Mini Cooper R50 R52 DME Petrol Engine Control Unit ECU 7553735 Automatic
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Part no. 1508927-1
Mini Cooper S R52 R53 Positive Battery Cable Fuse Box Module B 6911180
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Part no. 9170386
BMW E81 E87 E90 E91 Top Hifi System Amplifier Logic 7 L7 Harman Becker 6973618
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Part no. 5M0035724
Volkswagen VW Golf Mk6 1K Aux Socket Port Switch 5M0035724
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Part no. 6945158
BMW Z4 Series E85 Sensor B-pillar Airbag Right O/S 6945158
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Part no. 7588502-1
BMW Mini Cooper R55 R56 N12 1.6 Petrol Engine ECU Kit DME 7588502 CAS3 Key
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Part no. 8200798585
Renault Trafic 3 Vauxhall Vivaro B 1.6 DCI Glow Plug Relay Unit Black 8200798585
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Part no. 6938943
BMW E81 E87 E90 Hands-Free Electronics Charging Module MULF 6938943
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Part no. 9383069
Head Unit BMW F10 F20 F22 F30 Navigation Sat Nav High Control Module 9383069
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Part no. A2049013502
Mercedes W204 S204 Airbag Module Air Bag SRS Control Unit ECU A2049013502
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Part no. A6395450232
Mercedes Vito W639 PDC Parking Distance Control Unit Module ECU A6395450232
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Mercedes W211 Battery Module Trunk Relay Control Module Unit A2115408645
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Part no. 7636292-3
BMW F20 F30 116i 316i N13 136HP Engine Control Unit ECU DME 7636292 Automatic
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Part no. a0045468040
Mercedes W204 W212 W221 Power Distributor Box Conectors Socket A0045468040
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Part no. 7520019-7
MINI Cooper R50 1.6i W10 116HP Engine ECU Kit DME 7520019 + EWS + Key Automatic
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Part no. 1K0937125D-1
Audi A3 8P Volkswagen Touran Mk1 Skoda Yeti Engine Fuse Box 2.0 TDI 1K0937125D
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Part no. 7515030
Mini R52 R53 Petrol W11 Compact Alternator Generator 105A 7515030
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Part no. 9230432
BMW X5 E70 Footwell Light Control Module Unit Lear FRM3R VDM 9230432
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Part no. 1K0907530AA
Audi A3 8P Body Gateway Module ECU Control Unit 1K0907530AA
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Part no. 8517015-1
BMW X5 E70 X6 E71 30dX Diesel N57 245HP ECU Kit DDE 8517015 CAS3 Key Automatic
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Part no. A2048207785
Mercedes W204 Rear Left Door N/S Control Unit Module A2048207785
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Part no. 6934413-1
BMW X5 E53 Onboard Computer Navigation System Monitor Widescreen 6934413
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Part no. 7570253
MINI Cooper S R52 R53 Automatic Gearbox Basic Control Unit Module EGS 7570253
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Part no. 9112454
BMW X3 X5 E53 E83 PDC Parking Distance Control Unit Active Module 9112454
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Part no. 6876227
BMW F32 Tyre Pressure RDC Control Unit Module ECU 6876227
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Part no. A2125402705
Mercedes W212 Rear Suspension Level Sensor Wiring Loom Cable Harness A2125402705
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Part no. 9192740
BMW X5 Series E70 ECU Body Control Module Junction Box PL4 JBBFE II 9192740
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Part no. 9383178
BMW F20 F21 F22 F30 F31 F32 F36 Module Control Unit FEM 9383178
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Part no. 7521116
Starter BMW E90 Petrol N52 N53 Engine Starter Motor Unit 7521116
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Part no. RHD-F20-ANDROID-SCREEN
BMW F20 F21 LCI F23 GPS Navigation Sat Nav Display Screen Android Auto 10,25"
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Part no. 3450938
BMW Mini Cooper One R56 Footwell Light Module LOW ECU PL3 FRM II 3450938
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Part no. 7503611
BMW X5 Series E53 3.0i M54 Engine Wiring Loom Harness Module 7503611 7503617
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Part no. A6519000700
Mercedes W906 313 CDI OM651.955 129HP Diesel Engine ECU A6519000700 Manual
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Part no. rhd-7555018
BMW E92 E93 Engine Wiring Loom Harness Module 323i 325i 330i 7555018
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Part no. A2129009025
Mercedes W212 Fuse Box Front Relay Control Unit Module SAM A2129009025
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Part no. 7806987-2
BMW 3 5 Series E60 LCI E90 325d 525d M57N2 197HP ECU Kit DME CAS3 + Key 7806987
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Part no. A6429002700
Mercedes W203 W204 W212 OM642 Glow Plug Relay Unit Control Module A6429002700
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Part no. 7802471
BMW E87 E90 E90N E91 E92 E93 Alternator Generator Diesel 7802471
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Part no. 6917548-1
BMW Mini 1 R50 R53 Rear PDC Ultrasonic Parking Sensor Pure Silver Metallic 900
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Audi A1 8X Q3 8U Central Gateway Control Unit Module Relay ECU 8U0907468AC
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Part no. 7803369
BMW E60 E61 E90 E91 330d 530d M57N2 Engine DDE Control Unit 7803369 Automatic
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Part no. 9244429
BMW X6 Series E71 Rear Bumper PDC Cables Wiring Loom Set 9244429
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Mercedes W176 Front Crash Impact Airbag Sensor Pressure Sensor Unit A1769051000
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Part no. 7343935
Trunk Lid Module BMW F31 F15 F16 F36 Control Unit Rear Tailgate Lift 7343935
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Part no. 8T0035223AN
Audi S5 8T Amplifier Speaker Bang & Olufsen Control Module Unit 8T0035223AN
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Part no. 9231175
Diversity Antenna Amplifier BMW F30 F32 Rear Window DAB Module Unit 9231175
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Part no. A6421508900
Mercedes-Benz S W221 S350 CDI BlueTec OM642 Engine Control Unit ECU A6421508900
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Part no. 7579142-2
BMW E81 E87 LCI E90 120i 320i Petrol N43 170HP Engine ECU DME 7579142 Manual
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Part no. 8K0907357B
Audi A4 B8 Headlight Range Module Control Unit ECU 8K0907357B
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Part no. A4475400082
Mercedes Vito W447 Fuse Box Cover Trim Panel Lid Housing A4475400082
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Part no. A0009053011
Distance Radar Module Mercedes W177 W205 W253 Front Distronic Unit A0009053011
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Part no. 6968034
BMW 3 Series E90 ECU Body Control Module H1 61356968034 6968034
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Part no. 7553735-10
MINI S R52 R53 W11 Engine Control Unit Module ECU DME 7553735 Manual
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Part no. V23134-J52-X207
Relay Black 12V V23134J52X207 V23134-J52-X207
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Part no. 6957342
BMW 5 6 Series E60 E63 On-board Navigation Display Monitor Screen 6,5" 6957342
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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 .