Injection systems and parts
More informationAt Global Parts, we offer a wide selection of original used car parts, including injection systems and parts for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each injection system and part we offer undergoes quality control to ensure you receive a top-quality product.
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In Stock
Price
Part no. 03L130277
Audi A4 B8 A5 8T Q5 8R 2.0 TDI Diesel Fuel Injector 03L130277
€37.95
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 05L130277E
Audi Q2 GA 2.0 TDI DTTC Diesel Fuel Injector Rail Line 05L130277E
Promo price
€56.95
€34.17
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 04L130277AE
Audi A5 8T Engine Fuel Injector Injection 04L130277AE
Promo price
€51.95
€31.17
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 03L130089Q
Audi A4 B8 Q5 8R 2.0 TDI Diesel Fuel Rail Injection Rail Line 03L130089Q
Promo price
€80.95
€68.81
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 04L130277AD
Audi A3 8V A1 8X Fuel Injector Injection Diesel Engine 04L130277AD
Promo price
€47.95
€40.76
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 059130216J
Injector Holder Audi Q7 4L A7 4G8 A6 C7 Diesel 3.0 TDI Injector Bracket 059130216J
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 03L130755AC
VW Audi A4 B8 A5 8T Q5 8R 2.0 TDI Diesel High Pressure Fuel Pump 03L130755AC
Promo price
€113.95
€68.37
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130218AM
AUDI Q7 4L 3.0 TDI V6 CRCA Fuel Return Hose Fuel Injection Rail Line 059130218AM
€42.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 03L201360AF
Audi A4 B8 A5 2.0 TDI Diesel Fuel Lines Feed Twin Pipes 03L201360AF
Promo price
€28.95
€24.61
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 059130277AH
Audi Q7 4L A6 C6 A8 D3 3.0 TDI Diesel Fuel Injector Injection Unit 059130277AH
Promo price
€61.95
€37.17
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 057130277AG
Audi Q7 4.2 TDI Diesel Engine Fuel Injector Injection 057130277AG
Promo price
€85.95
€51.57
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130277CD-2
Fuel Injector AUDI Q7 4L VW Touareg 2 3.0 TDI CRCA Diesel Nozzle 059130277CD
€85.95
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 04L130277P
Audi A4 B9 Diesel Engine 2.0 TDI Quattro Fuel Injector 04L130277P
€70.95
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 059130090AJ
Audi A4 B8 3.0 TDI CAPA Fuel Injection Rail Right O/S Diesel 059130090AJ
Promo price
€47.95
€28.77
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06H906051G
Audi A4 B8 Fuel Injection Rail Pressure Sensor 1.8 TFSI CJEB Petrol 06H906051G
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 06L133317N
Audi A4 B9 TT FV Fuel Injection Rail Line Pipe Injectors 2.0 TFSI 06L133317N
€66.95
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 05L130089
Audi A4 B9 Q5 FY 2.0 TDI Diesel Fuel Injector Rail Line 05L130089
Promo price
€70.95
€42.57
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 059130089AJ
Audi A4 B8 3.0 TDI CAPA Fuel Injection Rail Left N/S Diesel 059130089AJ
Promo price
€28.95
€24.61
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 04L130277AC
Volkswagen Seat Skoda Audi A3 8V 2.0 TDI Diesel Fuel Injector 04L130277AC
Promo price
€42.95
€36.51
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06E127025S
Audi A6 C7 2.8 CHVA Injection Pump Fuel Pressure Pump 06E127025S
Promo price
€56.95
€34.17
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130277EJ-2
Audi Q7 4L 3.0 TDI Diesel Engine Fuel Injector Unit 0445117 059130277EJ
€237.95
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06E906036Q
Audi A6 C7 A7 4G Petrol Engine Fuel Injector Nozzle Jet 06E906036Q
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06E103535D
Audi A6 C7 High Pressure Pump Housing Tube Bracket 3.0 TFSI CREC 06E103535D
Promo price
€56.95
€48.41
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 04C133320F-1
Audi A1 8X VW Golf Fuel Injection Line Pressure Pipe Rail Injector 04C133320F
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 05L201360C
Audi Q2 GA 35 TDI Fuel Return Line Leak Off Rail Pipe Line Hose 05L201360C
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 059130089AB-1
Audi Q7 4L Fuel Injection Rail Line Pipe Diesel 3.0 TDI 059130089AB
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06E130089D
Audi A4 B8 3.2 FSI V6 Petrol Fuel Injection Rail Left N/S 06E130089D
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 06F127025K-6
Audi TT 8J VW Golf Mk5 2.0 TFSI BWA Petrol High Pressure Fuel Pump 06F127025K
€66.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 05L131113H
Audi A4 B9 A5 F5 A6 C8 A7 C8 Adblue Injector 05L131113H
Promo price
€70.95
€60.31
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 057130090L
Audi Q7 4L 4.2 TDI BTR Diesel Fuel Injection Rail Right O/S 057130090L
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06E906036P
Audi S4 B8 S5 8T A6 C7 3.0 TFSI Fuel Injector Injection Nozzle 306E036P
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 04L130089G-1
VW Volkswagen Caddy 2k Audi A1 S1 GB Fuel Rail Injection Injector 04L130089G
€66.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06K133317G-2
Audi A1 S1 8X A3 S3 8V A5 S5 F5 Fuel Injection Rail 2.0 TFSI 06K133317G
Promo price
€37.95
€32.26
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06Q906036A
Audi S3 8Y Fuel Injector Injection Unit Nozzle 2.0 TFSI Petrol 06Q906036A
Promo price
€56.95
€48.41
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06Q133317B
Audi A3 S3 8Y 2.0 TFSI Petrol Engine Fuel Injection Rail 06N133317A
Promo price
€94.95
€56.97
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06K133317AB
Audi A3 8V VW Golf Mk7 VII Petrol Fuel Injectors Injection Rail Line 06K133317AB
Promo price
€28.95
€24.61
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06K906036N
Audi A3 8V VW Golf Mk7 VII Fuel Injector Nozzle Set 2.0 TFSI 06K906036N
Promo price
€284.95
€242.21
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130312BB
Audi A6 C8 A7 4G Fuel Line Pressure Pipe Injector Rail 059130312BB
€23.95
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06J905110K
Audi S3 8V 2.0 TFSI CHHA Fuel Injector Ignition Coil 06J905110K
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 7LA131113A
Audi A4 B9 2.0 TDI DTNB Adblue Injector Nozzle 7LA131113A
Promo price
€80.95
€48.57
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 079906036C
Audi A5 S5 8T 4.2 V8 FSI CAUA Fuel Injection Nozzle 079906036C
Promo price
€56.95
€48.41
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130090ED
Audi A4 B9 A5 F5 Q7 4M VW Touareg Mk3 Fuel Injection Rail 3.0 TDI 059130090ED
€32.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 04E127026H
Audi Volkswagen Skoda Seat Petrol High Pressure Fuel Pump 04E127026H
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 079133315BD
Injection Fuel Rail Audi A7 S7 4G8 4.0 TFSI Injectors Left N/S Line 079133315BD
Promo price
€89.95
€53.97
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 04L130277N
Audi A4 B9 A5 F5 Q5 FY Fuel Injector Nozzle 2.0 TDI Diesel Bosch 04L130277N
€37.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 059130089DL
Audi A6 C8 Q7 4M Fuel Injection Rail Line Pipe Left N/S 3.0 TDI 059130089DL
Promo price
€37.95
€32.26
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06F133317L
Audi TT 8J 2.0 TFSI BWA Fuel Injection Strip Rail Injectors 06F133317L
Promo price
€189.95
€113.97
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06J905110N
Audi A3 S3 8V 2.0 TFSI DNUE Fuel Injector Ignition Coil 06J905110N
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 04E906036E
Fuel Injector Petrol 1.4 TSI Audi Seat Skoda Volkswagen 04E906036E
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 079133315BC-1
Audi S5 8T Petrol Fuel Injectors Injection Rail Line Pipe Left N/S 079133315BC
Promo price
€94.95
€80.71
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 06A133681B-1
Audi TT 8N A3 8P Fuel Injectors Rail Line 1.8T Petrol 06A133681B
€42.95
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 04L130216
Audi A3 8V Fuel Injector Bracket Clamp Jaw Holder TDI Diesel Engine 04L130216
€23.95
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 059130277FE
Audi A6 C8 A7 4K Injector Nozzle Diesel Engine 3.0 TDI 059130277FE
Promo price
€180.95
€108.57
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 07L133315A-1
Audi S8 D3 Petrol Fuel Injector Tube Rail Pipe Left N/S 5.2 Petrol 07L133315A
Promo price
€113.95
€96.86
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 04L130089F
Audi A3 8V 30 TDI DGTE Diesel Fuel Injection Rail 04L130089F
Promo price
€56.95
€48.41
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 07K133317J
Audi TTRS 8J Fuel Injection Rail Line Pipe Petrol 2.5 TFSI 07K133317J
Promo price
€51.95
€31.17
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06K133317AB-2
Audi A3 8V VW Golf Mk7 5G Fuel Injectors Injection Rail Line Petrol 06K133317AB
Promo price
€94.95
€80.71
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 07L133316A-1
Audi S8 D3 Petrol Fuel Injector Tube Rail Pipe Right O/S 5.2 Petrol 07L133316A
Promo price
€113.95
€96.86
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06K133317G-3
Audi S1 8X S3 8V A4 B8 A5 8T VW Golf Mk7 Fuel Injection Rail 2.0 TFSI 06K133317G
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06H906036G
Audi TT 8J Fuel Injector Petrol Engine Fuel Injection Nozzle 06H906036G
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06K133317G
Audi A1 S1 8X S3 8V VW Golf R 2.0 TFSI Fuel Injection Rail 06K133317G
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06E127026D
Audi S4 B8 S5 8T A6 C7 High Pressure Injection Fuel Pump 3.0 TFSI 06E127026D
Promo price
€61.95
€52.66
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06H127025N
Fuel Pump Audi TT 8J A3 8P A4 B8 Petrol High Pressure Pump Part 06H127025N
Promo price
€56.95
€34.17
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 059130277BE
Audi A5 8T 3.0 TDI Diesel Fuel Injector Nozzle Jet 059130277BE
Promo price
€70.95
€60.31
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 03L130089P-1
Audi A3 8P VW Jetta Mk6 Fuel Injector Rail Line Distributor 2.0 TDI 03L130089P
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 03L201360K-5
Audi A4 B8 A5 8T A6 C6 Fuel Feed Pipes Hoses Lines Twin 2.0 TDI 03L201360K
€23.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06K133317AB-1
Audi A3 8V VW Golf Mk7 5G Fuel Injectors Injection Rail Line Petrol 06K133317AB
Promo price
€80.95
€68.81
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 079133681G
Audi S4 B6 4.2 V6 Quattro Fuel Injectors Injection Rail Line Pipe 079133681G
Promo price
€104.95
€89.21
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06L127027C
VW Golf Mk7 Audi A3 S3 8V Fuel Pump High Pressure 2.0 TFSI Petrol 06L127027C
Promo price
€94.95
€56.97
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 059130089ED
Audi A4 B9 Q7 4M Fuel Injection Rail Line Pipe Left N/S 3.0 TDI 059130089ED
Promo price
€113.95
€68.37
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06L906036AB
Audi S3 8V 2.0 TFSI Petrol Fuel Injector Injection Nozzle 06L906036AB
Promo price
€47.95
€28.77
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 06J127025D-1
Audi A4 B8 A5 8T High Pressure Fuel Pump 2.0 TFSI CDNB 06J127025D
€70.95
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130089AH-1
Audi A4 B8 A5 8T Q7 4L Fuel Injection Rail Line Left N/S 3.0 TDI 059130089AH
€23.95
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06H127025K
Audi A3 8P A5 8T VW Passat B6 High Pressure Fuel Pump 1.8 TFSI TSI 06H127025G
Promo price
€66.95
€40.17
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 07K133551B
Audi RS3 8V RSQ3 F3 TTRS FV Fuel Injector Nozzle Jet 2.5 TFSI 07K133551B
€61.95
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 059130216K-1
Audi A4 B9 A7 4G8 Fuel Rail Tensioning Plate Bracket Mount Holder 059130216K
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06L906036L
Audi A3 S3 8V 2.0 TFSI Fuel Injector Injection Nozzle Petrol 06L906036L
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06E130090AD
Audi A4 B8 A5 8T A6 C7 Fuel Rail Injection System 3.0 TFSI 06E130090AF
Promo price
€28.95
€24.61
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 07K906036K
Audi RSQ3 F3 RS3 8Y TTRS 8Y Fuel Injector Nozzle Jet 2.5 TFSI 07K906036K
€61.95
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 059130216C
Audi A5 8T Fuel Injector Retaining Plate Bracket Mount Holder 059130216C
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 059130277CR
Audi A7 4G8 A6 4G2 Fuel Injector 3.0 TDI 059130277CR
€80.95
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 07K127503C
Audi RS3 8P Fuel Rail Distributor Front Right O/S 2.5 TFSI Petrol 07K127503C
€51.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06L906036K
Audi S1 8X A3 S3 8V 2.0 TFSI Petrol Engine Fuel Injector Unit 06L906036K
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06E130090C
Audi A4 A6 A8 Fuel Rail Right O/S 06E130090C
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 059130089P
Audi A4 B7 2.7 TDI BPP Diesel Engine Fuel Injector Rail 059130089AA
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 059130090P
Audi A4 B7 2.7 TDI BPP High Pressure Distribution Fuel Rail Tube 059130090AP
Promo price
€32.95
€28.01
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 05L130277J
Audi A4 B9 A5 F5 Fuel Injector Injection Nozzle 2.0 TDI Diesel 05L130277J
Promo price
€113.95
€96.86
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 06E130089AC-1
Audi S4 B8 S5 8T Fuel Injection Rail Left N/S 3.0 TFSI Petrol 06E130089AC
Promo price
€66.95
€56.91
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 06H906036F
Audi A3 8P A4 B8 Fuel Injector Nozzle 1.8 TFSI CDH 06H906036F
€23.95
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 03C906036M
Audi A1 8X 1.4 TSI CAXA Petrol Fuel Injector 03C906036M
Promo price
€42.95
€36.51
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06L127025R
Audi S1 8X S3 8V VW Golf Mk7 2.0 TFSI High Pressure Fuel Pump 06L127025M
Promo price
€113.95
€68.37
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 06L127027C-1
Fuel Pump VW Golf Mk7 Audi A3 S3 8V 2.0 TFSI Petrol High Pressure 06L127027C
Promo price
€75.95
€45.57
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 04L130380H
Audi A5 8T Thermal Protection Injector Injection Foam Cover 04L130380H
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 079133315E
Audi S5 8T Fuel Injection Injector Rail Line Left N/S 4.2 Petol 079133315E
Promo price
€28.95
€24.61
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 079133316E
Audi S5 8T 4.2 Petrol Fuel Injection Injector Rail Line Right O/S 079133316E
Promo price
€28.95
€24.61
Free delivery: Jul 23 – 28
If paid before 14:00
Part no. 03L130755A-1
Audi A4 B8 2.0 TDI CAGA Diesel High Pressure Fuel Pump 03L130755A
€180.95
Free delivery: Jul 23 – 28
If paid before 14:00
-40%
Part no. 05L131113E
Audi Q3 F3 Adblue Fuel Injector Nozzle 2.0 TDI 05L131113E
Promo price
€85.95
€51.57
Free delivery: Jul 23 – 28
If paid before 14:00
-5%
Part no. 06K133986K
Audi TT FV Fuel Injector Feeding Line Petrol 06K133986K
Promo price
€23.95
€22.75
Free delivery: Jul 23 – 28
If paid before 14:00
-15%
Part no. 05L130089C
Audi A4 B9 A5 F5 Fuel Rail Injector Injection Rail 2.0 TDI Diesel 05L130089C
Promo price
€94.95
€80.71
Free delivery: Jul 23 – 28
If paid before 14:00
Used fuel injection system parts – injectors, pumps, rails, and fuel system elements
The main components of the injection system and their functions
The fuel injection system is the heart of a modern engine, responsible for the precise dosing of fuel into the combustion chamber. It is thanks to this system that your vehicle can achieve excellent results in terms of power, fuel economy, and exhaust emissions. In the Global Parts automotive store, you will find a wide selection of used car parts for fuel injection systems, perfectly matched to brands such as BMW, Audi, Volkswagen, Mercedes, or Mini. Our parts are a guarantee of quality and durability, which will allow your vehicle to perform at the highest level.
How does a fuel injection system work?
The fuel injection system is an advanced system that works with other engine components to ensure optimal combustion of the air-fuel mixture. Its key elements include:
- Other fuel injection system parts – additional components necessary for the proper functioning of the fuel system.
- Injector nozzles – responsible for the precise atomization of fuel in the combustion chamber, which affects combustion efficiency and vehicle performance.
- High-pressure fuel pumps – key elements of the injection system that deliver fuel at the appropriate pressure to the injectors. An efficiently operating fuel injection system means not only more power and economy but also a longer engine lifespan and lower emissions of harmful substances.
Construction and purpose of fuel injection systems
Fuel injection systems are a set of components responsible for drawing fuel, generating the appropriate pressure, and delivering it to the cylinders at the right moment. A typical set includes a fuel pump, lines, a fuel rail, a regulator, and injectors, and in many versions, also sensors that work with the engine control unit. This system is located between the fuel tank and the combustion chamber and must work with the intake equipment and control electronics. If you are looking for a subassembly such as an Audi A4 B8 injection pump, it is worth comparing the OEM number, pump drive type, engine version, and electrical connector type before installation.
Definition and types of fuel injection systems
Fuel injection systems can be divided into several types, depending on the technology used by the manufacturer. The most common are the Common Rail system, injection pump with a fuel rail, and direct injection (GDI). In Common Rail systems, fuel pressure can reach up to 2000 bar, which allows for very accurate dosing and reduces fuel consumption by up to 10–15%. These systems are installed in many modern models, including the BMW 3 Series (E90), Audi A4 B8, or Volkswagen Golf VI.
Differences between types of fuel injection system components
| Component type | Main function | What to check before purchase | Cooperating elements |
|---|---|---|---|
| Injector | Doses and atomizes fuel at the right moment | OEM number, injection code, connector type, engine version | Fuel rail, engine ECU, seals |
| High-pressure pump | Generates the pressure needed to supply the rail and injectors | OEM number, mounting method, drive gear, engine compatibility | Fuel lines, pressure regulator, rail |
| Fuel rail | Stores fuel under pressure and distributes it to the injectors | Port layout, pressure sensor, engine version | Injectors, pressure sensor, lines |
| Regulator or control valve | Stabilizes the operating parameters of the entire system | Control type, connector, compatibility with pump or rail | Pump, fuel rail, ECU |
Why is it worth taking care of the fuel injection system?
Regular maintenance and replacement of worn fuel injection system components are essential for achieving optimal engine performance and reliability. A neglected system can lead to:
- Uneven engine operation.
- Increased fuel consumption.
- Difficulty starting the vehicle.
- Higher exhaust emissions. At Global Parts, we offer original used car parts that undergo thorough quality checks, ensuring their full functionality.
Fuel dosing function and the importance of operating pressure
Fuel dosing serves to maintain the correct mixture proportions depending on the load, temperature, and engine speed. In practice, this means that even a small leak or pressure drop can worsen starting, smoothness of operation, and throttle response. In diagnostics, components from the Fuel filters and Lines, hoses, and pipes categories are often checked, as they affect the tightness and stability of the supply.
Table of symptoms and fuel injection system components
| Symptom | Possible cause | Component to check |
|---|---|---|
| Uneven engine operation | Injector leak | Fuel injector |
| Engine power loss | Worn high-pressure pump | Injection pump / pressure regulator |
| Difficulty starting | Contaminated fuel filter | Filter / fuel rail |
| Engine smoking | Incorrect injection pressure | Nozzles or control valves |
How to choose the right parts for fuel injection systems?
When choosing fuel injection system parts, such as injectors, injection pumps, or pressure regulators, it is worth paying attention to:
- Vehicle model compatibility – every car manufacturer and model has its own unique requirements. At Global Parts, you will find parts perfectly matched to BMW, Audi, Volkswagen, Mercedes, or Mini.
- Technical condition – check that the components are free from damage and ready for further use.
- Type of fuel injection system – for example, common rail systems require precise injectors that are adapted to high operating pressures.
Compatibility and fitment
When choosing fuel injection system parts, it is worth paying attention to OEM compatibility – every element, such as a high-pressure pump or fuel rail, has its equivalent in manufacturer catalogs. At Global Parts, you can select a part based on the VIN, which guarantees perfect fitment and simple installation. This avoids the risk of incorrect component selection, and the replacement is faster and cheaper. It is worth knowing that most pumps and injectors can be used interchangeably in various VAG group models.
Selection of cooperating equipment and installation check
The fuel rail is a collector element that distributes fuel to individual injectors and often works with a pressure sensor and a control valve. When selecting, you must check not only the part number itself but also the number of outlets, the position of the ports, the thread type, and the presence of equipment. When completing a repair for a specific model, e.g., BMW E90, it is good to also verify related Fuel pumps and level sensors and Air and fuel intake sensors.
Why choose used fuel injection system parts?
Used car parts are an excellent solution for those looking for savings without sacrificing quality. By choosing used injectors, pumps, or regulators, you gain:
- Lower costs – used components are cheaper than new ones but offer equally high quality.
- Ecology – you support recycling, reducing the amount of automotive waste.
- Wide selection – in our offer, you will find fuel injection system elements for the most popular car brands.
Technical data and performance of fuel injection systems
Injectors in modern diesel engines operate with a frequency of up to 5–7 injections per cylinder cycle, which allows for very smooth acceleration and lower fuel consumption. In turn, injection pumps can maintain operating pressure in the range of 1500–2500 bar. Such parameters guarantee the highest efficiency and long life of the entire system. When choosing an element like Audi A4 B8 injectors, it is important to compare the manufacturer's marking, performance class, correction code, and compatibility with the specific engine version.
How to take care of your vehicle's fuel injection system?
To ensure the fuel injection system works efficiently for a long time, it is worth remembering a few key rules:
- Regularly clean and maintain fuel injectors to avoid clogging.
- Use high-quality fuel and apply cleaning additives that improve system operation.
- Check and replace injection pumps and pressure regulators according to the manufacturer's recommendations. In case of failure or wear of components, at Global Parts you will find suitable used auto parts that will help restore your vehicle to full efficiency.
Benefits of regular service
Regular inspection of the fuel injection system not only increases engine life but also reduces fuel consumption by an average of 5–8%. Well-maintained injectors and pumps guarantee smooth operation of the power unit and less load on other subassemblies, such as the turbocharger or EGR valves. A practical supplement to knowledge about equipment and design changes in popular models is the article Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts.
FAQ
| Question | Answer |
|---|---|
| What is the construction and purpose of fuel injection systems? | Fuel injection systems are sets of components responsible for transporting, compressing, and precisely dosing fuel into the engine. They usually consist of a pump, lines, a fuel rail, injectors, and pressure control elements. They are mounted between the fuel tank and the combustion chamber and work with the engine electronics. |
| What are fuel injection systems used for? | Fuel injection systems are used to deliver the appropriate dose of fuel at the right moment of engine operation. Their task is to maintain proper combustion, performance, and smoothness of the power unit. When they malfunction, problems with starting, power loss, and increased fuel consumption may occur. |
| What is the construction and function of a fuel rail? | A fuel rail is an element that distributes fuel to individual injectors at a set pressure. Depending on the design, it may work with a pressure sensor and a control valve. Its proper tightness and compatibility with the system affect the even supply of the cylinders and the stability of engine operation. |
| How to choose parts for fuel injection systems for a specific engine version? | It is best to compare the OEM number, engine code, connector type, and factory-installed equipment version. It is also worth checking whether the part is intended for the pre-facelift or facelift version and whether it fits the specific control type. For elements such as pumps and injectors, verification by VIN is also helpful. |
| What symptoms indicate a problem with the fuel injection system? | The most common are uneven engine operation, difficulty starting, power loss, and increased smoke. Symptoms can result from an injector leak, unstable fuel pressure, or dirt in the system. In diagnostics, it is also worth checking the fuel filter, lines, and cooperating sensors. |
| What should be paid attention to when installing used fuel injection system parts? | Before installation, compare catalog numbers, mounting points, ports, threads, and the type of electrical plug. In many cases, you also need to assess the condition of the seals and check whether the part works with the remaining fuel equipment. Proper selection limits the risk of leaks and speeds up the installation itself. |
Summary: fuel injection systems and parts at the Global Parts automotive store
Fuel injection systems are the foundation of the efficiency and reliability of every engine. By taking care of their proper operation, you ensure your vehicle has optimal performance, fuel economy, and a longer lifespan. In the Global Parts offer, you will find proven components for many car models, including BMW, Audi, Volkswagen, Mercedes, Mini, and others. Properly selected pumps, injectors, rails, and regulators help maintain correct engine supply parameters and simplify repairs in accordance with the OEM number and car version. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to our automotive blog.