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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Make
Category
Subcategory
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In Stock
Price
-5%
Part no. A9065450003-3
Mercedes Sprinter W906 Fuse Box Cover Trim Panel Lid Black A6395450003
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A6395406209
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406209
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1775401629
Mercedes W177 Rear Bumper PDC Wiring Loom Parking Sensor A1775401629
Promo price
£32.95
£28.01
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2129000004
SAM Module Mercedes W212 Fuse Box Relay Control Unit A2129000004
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0018209326
Mercedes-Benz E CLS Class W211 W219 Crash Sensor Left Right N/O/S A0018209326
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6394460132
Mercedes Vito Viano W639 Side Sliding Door Control Unit Module A6394460132
Promo price
£237.95
£142.77
Free delivery: Mar 3 – 10
If paid before 14:00
-40%
Part no. A2215450801-1
Mercedes W221 Fuse Box Control Unit SAM Module Relay A2215450801
Promo price
£189.95
£113.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1679009621
Ignition Switch Module Mercedes CLA C118 W177 W247 M139 M260 Petrol A1679009621
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519007600-1
Mercedes W176 A200CDI OM651.901 136HP Engine Module ECU Kit A6519007600 Key Lock
Promo price
£237.95
£142.77
Free delivery: Mar 3 – 10
If paid before 14:00
-40%
Part no. A1679008207
Telematics Module Mercedes W177 W247 Communication Control Unit ECU A1679008207
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2198200089
Antenna Amplifier Mercedes CLS C219 Pillar C Left N/S Aerial Module A2198200089
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1679000111
Mercedes W167 W177 Radio Stereo Player Sat Nav Head Unit ECE A1679000111
Promo price
£284.95
£242.21
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1635400182
Mercedes-Benz ML-Class W163 Fuse Box Lid Cover Box Trim A1635400182
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A6395406509
Wiring Loom Mercedes W639 Vito Cable Door Wiring Cable A6395406509
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. rhd-A0051510101-1
Mercedes W202 W203 W208 W220 M112 M113 Engine Starter Motor A0051510101
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1779005505
Door Module Mercedes W177 W247 Rear Left Right N/O/S Control Unit A1779005505
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2034404532
Mercedes CLC-Class CL203 Rear Parking Sensor Wiring Loom Cable PDC A2034404532
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2045407135
Earth Ground Cable Mercedes W204 C207 Line Strap Battery Lead A2045407135
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6401507934-1
Mercedes W169 W245 A180 B180 CDI Engine Control Module A6401507934 Automatic
Promo price
£94.95
£56.97
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2075400710
Battery Cable Mercedes W204 W207 Starter Alternator Wiring Harness A2075400710
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2079001100
Door Module Mercedes C207 W207 Front Left N/S Control Unit ECU A2079001100
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2465451440
Mercedes W176 Fuse Relay Box Cover Cap Top Trim Lid A2465451440
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2059009230
Air Conditioning Module Mercedes W205 C253 A/C Control Unit ECU A2059009230
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1779069105
Mercedes CLA C118 W177 Centre Console Light Wiring Harness Cable A1779069105
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2059000524
Mercedes W207 W212 Telematics Services Communication Module A2059000524
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2709000900-5
Mercedes W176 A250 M270.920 BE 211HP Engine Control ECU A2709000900 Automatic
Promo price
£237.95
£142.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0009006920
Mercedes W205 W213 Battery Control Unit Charging Terminal Module A0009006920
Promo price
£284.95
£242.21
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2049005908
Mercedes W204 COMAND Navigation CD Player Radio Sat Nav Head Unit A2049005908
Promo price
£161.95
£97.17
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A1775409710
Mercedes W177 Door Cable Wiring Harness Loom Front Left Right Door A1775409710
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6429002900-3
Mercedes W207 E350 CDI BlueEfficiency OM642.836 Engine Module ECU A6429002900
Promo price
£113.95
£68.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139001710
Keyless Go Mercedes W213 W222 Keyless Entry Control Unit Module A2139001710
Promo price
£32.95
£19.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2045400608
Mercedes W204 Front Bumper PDC Wiring Parking Loom Harness A2045400608
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2059004013
Mercedes W205 Air Conditioning Control Module A/C ECU Unit A2059004013
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2218703995
Mercedes-Benz S-Class W221 Remote Trunk Closing Control Unit Module A2218703995
£66.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6401503634-1
Mercedes W169 W245 A180 B180 CDI OM640.940 109HP Engine ECU Kit A640150363 Key
Promo price
£237.95
£142.77
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. MMI Retrofit
Mercedes W204 MMI Multimedia Interface CarPlay Android Retrofit Interface
Promo price
£189.95
£161.46
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2129009908
Mercedes SLK R172 Fuse Box Relay Control Unit SAM Module A2129009908
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. RHD-A2479008311-3
Mercedes W177 Dash Monitor Display Speedo SAT NAV Virtual Cockpit A2479008311
Promo price
£213.95
£181.86
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1779003806
Door Module Mercedes C118 W177 W247 Front Left N/S Control Unit A1779003806
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2048207485
Mercedes W204 Front Door Control Unit Module Right O/S A2048207485
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A6397600340
Mercedes Vito W639 Door Handle Cable Catch Bowden Cable Rear A6397600340
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0015424623-1
Mercedes-Benz C E A207 W204 W212 1 Front Parking PDC Display Panel A0015424623
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A2125400232
Door Wiring Mercedes W212 Cable Front Right O/S Door Harness Loom A2125400232
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2129001227
Gateway Control Unit Mercedes W204 W212 Gateway Module ECU VST A2129001227
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2389055000
Mercedes W205 Antenna Aerial Amplifier Duplexer Module Receiver Unit A2389055000
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2469006710
Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469006710
Promo price
£80.95
£68.81
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009006616
Rear Module Mercedes C238 PDC Parking Assistant Parktronic Control A0009006616
Promo price
£151.95
£91.17
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2198200511
Mercedes CLS W219 Phone Adapter Contact Plate Holder Telephone A2198200511
Promo price
£47.95
£28.77
Free delivery: Mar 02
If paid before 14:00
Part no. A2115408545
Gateway Module Mercedes W211 Control Unit ECU A2115408545
£18.95
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2079010100
Air Module Mercedes W207 C207 Coupe Control Unit ECU A2079010100 5WK43967
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A9065451640
Mercedes-Benz Sprinter W906 Fuse Box Unit Holder Bracket Frame A9065451640
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2059068501
Mercedes W205 Fuse Box Rear Relay Electrical Control Unit Box A2059068501
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
Part no. A1718205226
Mercedes SLK R171 Door Module Front Right Control Unit ECU A1718205226
£132.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1699000200
Mercedes-Benz A B W169 W245 Front Right Door Control Unit Module A1699000200
Promo price
£27.95
£16.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2139008822
Air Module Mercedes W213 C238 Control Unit Module ECU A2139008822
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0009004007
Mercedes W204 W222 Fuel Pump Control Unit Module A0009004007
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. 251-736-10
Mercedes W251 R350 CDI BRABUS D6 S OM642 Diesel Power Box Upgrade Module Wiring
Promo price
£759.95
£645.96
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A6395460035
Mercedes Vito W447 W639 Battery Terminal Protection Cap Cover A6395460035
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6421509478-3
Mercedes W164 ML320 OM642.940 224 HP 4Matic Engine ECU Kit A6421509478 Automatic
Promo price
£237.95
£142.77
Free delivery: Mar 3 – 10
If paid before 14:00
-40%
Part no. A2129007324
Mercedes SLK R171 Petrol M271 Fuse Box SAM Relay Control Module A2129007324
Promo price
£180.95
£108.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A1645400072
Mercedes ML W164 Front Fuse Box SAM Relay Control Unit Module A1645400072
Promo price
£180.95
£108.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6398200186
CD Radio Mercedes W639 W906 Audio Stereo Head Unit A6398200186
Promo price
£37.95
£22.77
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6519005301-6
Mercedes W204 C250CDI 204HP OM651.911 Engine ECU Kit Key A6519005301 Manual
Promo price
£180.95
£108.57
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A1775407923
Mercedes V177 Main Body Wire Harness Pipe Electric A1775407923
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6461501077
Mercedes Vito W639 OM646.980 Engine ECU Control Unit Module A6461501077 Manual
Promo price
£113.95
£68.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2229007009
Mercedes W205 SAM Module Comfort Control Unit ECU A2229007009
Promo price
£28.95
£17.37
Free delivery: Mar 02
If paid before 14:00
Part no. A1695408033
Mercedes-Benz A W169 Front Driver's Side Door Wiring Loom Harness A1695408033
£18.95
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. 283930431R
Roof Microphone Mercedes Citan W415 Interior Mic Unit Wiring Cable 283930431R
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2118209626
Mercedes W211 W219 Alarm Control Module Unit ECU A2118209626
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2829003300-1
Mercedes W177 A180 282.914 136HP Petrol ECU Kit A2829003300 Key BCM Automatic
Promo price
£208.95
£125.37
Free delivery: Mar 3 – 10
If paid before 14:00
-40%
Part no. A6429000500
Mercedes W204 C320 CDI OM.652.960 Engine Control Unit ECU A6429000500 Automatic
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. rhd-A1716281214
Mercedes SLK R171 Battery Bracket Mount Holder Carrier A1716280714
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2469000516
Radio CD Player Mercedes W176 W246 COMAND Nav Sat Head Unit A2469000516
Promo price
£94.95
£80.71
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2046800931
Mercedes W204 Dashboard Navigation Central Display Screen Monitor A2046800931
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2135452040
Mercedes W213 Head Unit Bracket Control Unit Module Holder Mount A2135452040
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2215400682
Mercedes W221 Fuse Box Cover Trim Panel Lid Housing A2215400682
Promo price
£23.95
£20.36
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2218001548
Mercedes-Benz S-Class W221 Remote Trunk Closing Hydraulic Pump Unit A2218001548
Promo price
£123.95
£74.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A0015424523
Parktronic Display Mercedes W207 W212 PDC System Parking Sensor A0015424523
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
Part no. A2169000201
Mercedes C216 W221 Door Control Module Unit Front Right O/S A2169000201
£108.95
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2135406100
Fuse Box Mercedes W205 Interior Equipment Fuse Box Control Module A2135406100
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009002308
Mercedes W447 W906 Adblue Module Exhaust Gas Control Unit ECU A0009002308
Promo price
£56.95
£34.17
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2205400382
Mercedes CL S Class C215 W220 Fuse Box Unit Front Right O/S Cover A2205400382
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A6121533279-1
Mercedes-Benz ML W163 270 CDI Engine Control ECU Kit A6121533279 Key Automatic
Promo price
£189.95
£113.97
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2219067300
Mercedes-Benz S-Class W221 Fuse Box Control Unit Module SAM A2219067300
Promo price
£284.95
£170.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A1775400630
Parking Sensor Wiring Mercedes W177 V177 Rear Bumper PDC Loom Cable A1775400630
Promo price
£75.95
£64.56
Free delivery: Mar 02
If paid before 14:00
Part no. A2469000012-3
Mercedes W176 W246 Radio Head Unit COMAND Navi Player Control Unit A2469000012
£47.95
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2049008213
Mercedes W204 COMAND Navi CD Player Radio Sat Nav Head Unit A2049008213
Promo price
£218.95
£131.37
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A0009009903
Mercedes W212 E63 AMG Drive Unit Extended Control Module ECU A0009009903
Promo price
£56.95
£48.41
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A0009050538
Mercedes-Benz S-Class W221 Multi Purpose Camera Control Unit Module A0009050538
Promo price
£66.95
£40.17
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2049003915
Mercedes C204 Radio Sat Nav CD Stereo Head Unit A2049003915
Promo price
£75.95
£45.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2781500056
Wiring Harness Mercedes GLE W166 C292 Automatic Gearbox Cable Loom A2781500056
Promo price
£56.95
£34.17
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2079000600
Mercedes C207 Door Module Rear Right O/S Control Unit ECU A2079000600
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2721533779-3
Mercedes A209 SLK350 272.960 272HP Engine Module ECU A2721533779 Automatic
Promo price
£189.95
£113.97
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2078210411
Mercedes W204 W207 Centre Console Connector AUX USB Port Socket Trim A2078210411
Promo price
£18.95
£16.11
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A2215402350
Fuse Box Mercedes W221 W216 Junction Control Unit Relay Module A2215402350
Promo price
£23.95
£14.37
Free delivery: Mar 02
If paid before 14:00
-5%
Part no. A2113231126
Mercedes-Benz E Class W211 Front Left Anti Roll Bar Clamp Bracket A2113231126
Promo price
£13.95
£13.25
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. rhd-A6111500433
Mercedes W203 OM611 Diesel Engine Wiring Cable Loom Harness A6111500433
Promo price
£70.95
£42.57
Free delivery: Mar 02
If paid before 14:00
-40%
Part no. A9075402605
Mercedes W907 Fuse Box Control Unit Module Q2 A9075402605
Promo price
£51.95
£31.17
Free delivery: Mar 02
If paid before 14:00
-15%
Part no. A2229002921
Mercedes W205 W213 Head Unit Navigation Radio DAB High Control Unit A2229002921
Promo price
£332.95
£283.01
Free delivery: Mar 02
If paid before 14:00
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 .