Air & Fuel Delivery
More informationAt the Global Parts automotive store, we offer a wide selection of original used car parts, including intake and fuel systems for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The intake and fuel systems we offer undergo quality control so that you can be sure that you are receiving a top-class product.
Make
Category
Subcategory
Condition
In Stock
Price
Part no. 8571676
BMW G30 G31 G11 G12 G31 B57 Diesel Fuel Lines Engine Compartment 8571676
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7645857
Petrol Fuel Pipe BMW F20 F30 F31 LCI F32 B48 Tank Breather Suction Pipe Hose
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7200075
BMW 5 6 Series E60 E61 E63 E64 Activated Charcoal Filter Active Carbon 6761043
€25.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7260945
BMW 1 2 3 4 Series F20N F22 F23 F30 F31 F34 Fuel Tank Tension Strap Right O/S
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7852335
Vent Pipe BMW F90 M5 F92 M8 S63M Crankcase Ventilation Line Hose Cyl 1-4 7852335
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7793203
Cover Intake Silencer BMW E53 E60 E61 E65 E90 E91 M57N2 Diesel 7793203
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7007785
BMW X5 Series E53 Rear Strut Shock Absorber Trunk Protection Cap Left 7007785
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7796869
Radiator Upper Cooling Pipe BMW E87 LCI E81 E82 N47 Cylinder Head Line 7796869
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 2248057
BMW X5 Series E53 3.0d M57 Water Hose Radiator Pipe Engine Cooler 2248057
€24.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 3428148
BMW X3 Series E83 LCI 1.8d 2.0d N47 Engine Water Pipe Coolant Hose 3428148
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7852336
BMW F90 M5 F92 M8 S63M Vent Pipe Crankcase Ventilation Line Hose Cyl 5-8 7852336
€66.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7801662
BMW 3 Series E90 E91 E92 E93 Fuel Supply Feed Line Pipe Diesel M57N2 7801662
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9143976
BMW Z4 E85 Air Conditioning Hose Pipe Line Condenser Dryer 9143976
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7464627
BMW F40 MINI F55 F56 F57 Fuel Pipe Scavenging Line Front 7464627
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7204365
BMW F10 Cover Fuel Filler Pot Carrier Cap 7204365
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9119174
BMW 5 6 7 Series F01 F10 F11 F12 F13 LCI Heater Water Pipe Hose Inlet 9119174
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9228234
BMW X3 F25 Pressure Pipe Air Conditioning A/C Condenser Water Hose Line 9228234
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7856956
BMW F90 M5 F92 M8 Charge Air Cooler Bracket Cooling Mount Holder 7856956
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8088661
Tank Breather Hose BMW X3M F97 X4M F98 Petrol S58 Suction Line Hose 8088661
€47.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7588625
BMW F20 F21 F30 F31 N20 Petrol Throttle Body 13547588625 7588625
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7805795
BMW E90 E91 LCI N57 Hose Line Coolant Pump Expansion Tank 7805795
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7555289
BMW 1 3 Series E87 E90 LCI N45N Air Intake Silencer Rubber Boot Pipe 7555289
€33.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8513294-1
BMW F30 F32 LCI 335dX 435dX N57Z Diesel Engine Vacuum Hose Pipe Line 8513294
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 3401815
BMW X3 Series E83 Fuel Filler Flap Cover Pot Mount Housing 3401815
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7206558
BMW F11 Touring Fuel Filler Cover Cap Flap Pot 7206558
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7809671-1
BMW X3 E83 3.0d E90 LCI 335d M57N2 Engine Intake Manifold Flap Actuator Drive
€37.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7190947
BMW E81 X1 E84 E87 LCI E90 E92 Fuel Tank Pressure Regulator Unit 7190944
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8623565
BMW 3 Series F30N F30 LCI Hybrid Coolant Water Hose Pipe Line Feed 8623565
€56.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 6762417
BMW E39 E46 X5 E53 E60 E60N E61 E61N E65 E66 R50 R52 Screw Cap
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8513848
BMW 1 3 Series F20 F21 LCI B37 Diesel Turbo Charge Air Line Pipe Hose 8513848
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7244022
BMW F20 F20N F21 F22 PLASTIC FILLER PIPE FUEL LINE PETROL 7244022
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8053442
BMW X4M F98 Petrol S58 Fuel Injection Supply Line Pipe Pressure Sensor 8053442
€42.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7514404
BMW Z4 Series E85 Cooling System Water Hose Pipe 7514404
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7796692
BMW E60 E61 Diesel Air Intake Silencer Duct 7796692
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8571896
BMW F10 F11 518d 520d B47 Intercooler Air Charge Hose Pipe 8571896
€37.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7546064
Water Coolant Pipe BMW E60 E61 E63 E64 Hose Engine To Radiator Top Petrol N52
€37.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7605374
Vacuum Tank BMW F10 F11 F13 N63 N63N Pressure Reservoir Container 7605374
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7847407
Air Charge Hose BMW F87 M2 N55 Turbo Intercooler Pipe Tube Hose 7847407
€123.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 2993153-SCG
BMW X1 E84 Fuel Cover Fill In Flap Spacegrau Metallic
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7521024
BMW 5 6 Series E60 E61 E63 E64 Air Duct Housing Rubber Boot 7521024
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8089949
Fuel Pipe BMW X3M F97 X4M F98 Petrol S58 Injection High Pressure Line 8089949
€66.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7787454
BMW 5 Series E60 E61 LCI M47N2 520d Cooling Coolant Thermostat Water Hose Pipe
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7603816
BMW 1 3 5 Series F10 F20 F21 F30 F31 N20 Vacuum Engine Block Hose Pipe 7603816
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 5A0C5A8
Oil Filter Pipe BMW F70 F74 U06 U11 Hose Shutoff Valve 5A0C5A8
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7804171
BMW E90 E92 E60 E64 Air Mass Meter Hose 7804171
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7642466
Fuel Pump BMW F20 F21 F30 F31 LCI F32 High Pressure Petrol Pump 7642466
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7624676
BMW 1 3 4 F20 F21 F30 F31 F32 Petrol Radiator Coolant Hose Pipe 7624676
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7605638-1
Air Intake Pipe BMW F22 F30 F32 N20 Intercooler Tube Hose Line Silencer 7605638
€47.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8513289
BMW E90 E91 LCI N47N Intake Manifold Charge Air Line Tube Hose Pipe 8513289
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 2284285
Coolant Pipe BMW F01 F02 F10 LCI N63N Feed Expansion Tank Line Radiator 2284285
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7521014
Intake Duct BMW E63 E64 N52 N62 S85 Air Inlet To Air Filter Box Housing 7521014
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7805727-1
Fuel Rail BMW E60 E61 E90 E91 E83 E70 M57N2 High Pressure Fuel Rail 7805727
€75.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7852386
BMW F90 M5 F92 M8 Air Inlet Filter Intake Duct Hose Pipe Cyl 5-8 7852386
€85.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8058623
Fuel Tank BMW X3 F97 X4 F98 Breather Line Pipe Hose 8058623
€42.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7585411
BMW F10 F20 F21 F30 LCI Fuel Rail High Pressure Rail Fuel Petrol 7585411
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7639990-1
Injector Set BMW F20 F30 LCI Mini F60 Petrol B38 Fuel Injector X3 7639990
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8623324
Throttle Body BMW F20 F21 F22 F30 F31 F32 F33 LCI Petrol 8623324
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 3449003
BMW X3 E83 LCI Air Filter Box Housing Intake Silencer 3428485 3420245
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 3421987
BMW X3 Series E83 LCI E83N Radiator Cooling System Water Hose Pipe 3421987
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8644284
Pressure Sensor BMW i3 I01 Hybrid Rex Petrol Intake Inlet Manifold 8607548
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7216530
BMW X3 F25 Fuel Filler Pipe Plastic Tube N47N Diesel 7216530
€42.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7332361-1
BMW F46 Cover Pot Diesel Fuel Flap Base Carrier Filler Housing 7332361
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8580209-1
AdBlue Metering Unit BMW G20 G30 Diesel B57 330d 530d SCR Nozzle 8580209
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8519445
BMW F10 F20 F30 F32 Air Charge Intake Temperature Sensor Diesel 8519445
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7786013
BMW X3 X5 E53 E60 E83 M57N Engine Filtered Air Turbo Pipe
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9307243
BMW 2 3 4 Series F80 F82 F83 Hose Pipe Radiator Engine Return 9307243
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8616080
BMW F20 F21 F22 F30 F31 LCI Fuel Injector Pipe Feed Line 8616080
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7222392-1
BMW X3 5 6 Series E60 E61 E83 R56 R55 LCI Fuel Tank Filler Cap Cover 7222392
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8605976-1
BMW F10 F11 F06 F13 X5 E70 F01 Petrol N63 S63N Engine Vacuum Pump 7619388
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7797215
BMW E60 E90 E70 Diesel Vacuum Hose Pump Brake Booster Line 7797215
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7797877-3
BMW E81 E87 LCI E92 120d 320d Diesel N47 Set Fuel Injection System
€683.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7797654-2
BMW E60 E61N E81 E82 E84 E87N E88 E90N E90 E91 E91N Vacuum Pipe Hose 7797654
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8635510
Fuel Injection Hose BMW F20 F21 F30 F31 LCI F32 Fuel Pipe Line Petrol 8635510
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8607026
BMW F20 F30 LCI Fuel Tank Breather Line Pipe With Resonator 8607026
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 6942890
BMW E65 E66 Air Intake Pipe Hose 6942890
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7584461
Fuel Pump BMW F20 F21 F30 F31 N20 Engine High Pressure Pump 7584461
€37.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7628057
BMW F30 F36 Additional Radiator Cooler Engine Auxiliary Water Cooling 7628057
€142.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8089948
Fuel Pipe BMW X3M F97 X4M F98 Petrol S58 Injection High Pressure Line 8089948
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7547186
BMW 5 6 7 Series E60 E61 E63 E64 E65 Breather Vent Line Hose Pipe 7547186
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 6972819
BMW X5 Series E53 Intake Air Line Pipe Hose 6972819
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7561927-1
BMW 1 Series E81 E82 E87 116i 118i 120i Intake Manifold Air Box Cover 7561927
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7609520
Tank Vent BMW F20 F21 F30 F31 N13 Fuel Tank Ventilation Valve Pipe 7609520
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 3412472
BMW X3 Series E83 Air Conditioning Condenser Dryer Pressure Hose Assy 3412472
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7807991-2
Intake Manifold BMW E90 LCI F10 F20 F21 F30 N47N Inlet Unit With Flap 7807991
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7799790
BMW E81 E88 E90 E91 Vacuum Pressure Tank 7799790
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8058622
Fuel Tank Breather Line BMW X3 M F97 X4 M F98 Hose Pipe Breather 8058622
€66.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7577347
BMW Z4 Series E89 Fuel Injection Hose Pipe Petrol 7577347
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7810702-3
BMW F30 F31 330d N57N Set Injector Fuel Pump Injection System Injectors Pipes
€854.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7798446-4
Fuel Injector BMW E81 E87 LCI E90 E91 E92 F20 F30 118d 318d N47 Diesel 7798446
€32.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8603913-1
Intake Manifold Insert BMW F20 F30 B58 M140i 340i Intercooler Part 72344084
€284.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7502444
BMW E46 E60 E61 X3 E83 M54 Petrol Throttle Housing Body 7502444
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8603913-4
BMW F20 F30 F32 B58 M140i 340i 440i Inlet Intake Manifold System 8603913
€517.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 3400407
BMW X3 Series E83 E83N LCI 3.0d Hose Engine Inlet Coolant Pipe 3400407
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9222651
BMW E90 E91 E92 E93 LCI N47N Radiator Engine Return Hose Line 9222651
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9222701
BMW 3 Series E90 E91 LCI E92 E93 N57 Diesel Coolant Hose Pipe Line Tube 9222701
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7935212
BMW X3 G01 X4 G02 X5 G05 X5L G18 Pipe Hose Recirculated Air Turbo 7935212
€28.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 8511339
Air Intake Unit BMW F20 F21 LCI F30 Mini F56 Temperature Sensor Diesel 8511339
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 7852402
Fuel Rail BMW F90 M5 F91 M8 G11 G15 G30 1-4 Cyl Petrol High Pressure 7852402
€89.95
Free delivery - Wed, Sep 24
If paid before 14:00
Part no. 9248662
Coolant Hose BMW F10 F11 530d N57N Return Water Pipe Line Tube 9248662
€23.95
Free delivery - Wed, Sep 24
If paid before 14:00
Comprehensive offer of used intake and fuel system parts – air filters, throttles, fuel pumps, injectors, and intake manifolds
What components make up the intake and fuel system?
Have you ever wondered what determines the performance and efficiency of your engine? The intake and fuel systems play a key role in ensuring the proper mixing of air and fuel, which translates into power, economy and ecology. In the Global Parts automotive store you will find a wide range of used car parts , such as air filters, **throttle valves , fuel pumps and fuel injectors . We offer parts for intake and fuel systems for BMW , Audi, Volkswagen , Mercedes and Mini, adapted to various models and needs.
How does the intake and fuel system work?
The intake and fuel systems are systems that work together to deliver a mixture of air and fuel to the combustion chamber. Each component of this system has a specific task:
- Fuel Pumps and Level Sensors – They are responsible for the correct supply of fuel to the engine and controlling its amount in the tank.
- Fuel tanks and filler pipes – They store fuel and allow it to be refueled safely.
- Air and fuel intake sensors – They monitor the amount of air and fuel supplied, optimizing engine operation.
- Throttles – Regulate air flow to the engine, affecting its performance and response to the gas pedal.
- Vacuum pumps – They support the operation of vacuum systems such as brakes and control valves.
- Air filters – They protect the engine against contamination by ensuring clean air in the combustion process.
- Fuel filters – Removes contaminants from fuel, protecting the injection system and fuel pump.
- Intake manifolds – Distributes air evenly into the cylinders, increasing combustion efficiency.
- Air filter housings – Protect air filters from damage and ensure their optimal operation.
- Cables, hoses and pipes – They transport fuel and air between individual system elements.
- Turbochargers, compressors and coolers – They increase the amount of air supplied to the engine, improving its performance.
- Injection systems and parts – They are responsible for precise fuel dosing to the cylinders, which affects combustion and engine efficiency.
- Fuel filler flaps and caps – They ensure the tightness of the refueling system and protection against leaks. Well-maintained intake and fuel system components not only impact performance, but also lower fuel consumption and reduce exhaust emissions.
Why is it worth taking care of the intake and fuel systems?
Regular maintenance and replacement of intake and fuel system components is essential for the proper functioning of every vehicle. Contamination or wear of parts can lead to:
- Reduce engine power.
- Higher fuel consumption.
- Damage to other components, such as turbochargers or catalytic converters. By choosing genuine used car parts , available at Global Parts, you can save on costs without compromising on quality and durability. In our offer you will find parts for intake systems that provide excellent engine performance.
How to choose the right intake and fuel system parts?
When deciding to purchase parts, pay attention to a few key aspects:
- Vehicle Model Matching – Every make and model has its own unique technical requirements. At Global Parts you will find parts tailored to your car, whether it is a BMW , Audi, Volkswagen , Mercedes or Mini .
- Technical condition – Check if components such as fuel lines , fuel pumps or injectors , are free from damage and ready for further use.
- Material of manufacture – For example, intake manifolds can be made of aluminum or plastic. Choosing the right material affects the durability and efficiency of work.
Why choose used parts for the intake and fuel system?
Used car parts are a great solution that allows you to combine high quality with savings. At Global Parts we offer a wide selection of components such as air filters, throttle valves or fuel injectors that have undergone detailed quality checks. Why is it worth choosing such a solution?
- Lower costs – Used components, such as fuel pumps or intake manifolds, are often much cheaper than new ones, and their quality remains high.
- Ecology – Choosing used car parts, you support recycling and reduce the amount of automotive waste.
- Wide availability – We offer parts for all the most popular brands, allowing for easy fit to your vehicle.
How to take care of the intake and fuel system?
To keep your engine running efficiently, regularly check the condition of your intake and fuel systems . Here are some tips:
- Change air filters regularly and check intake pipes for leaks.
- Keep your fuel injectors clean – contamination can reduce their efficiency.
- Check the condition of the fuel pump and lines to avoid problems with engine power. In case of failure or wear of components, you will find the right used car parts at Global Parts , which will help restore your vehicle to full working order.
Summary: Intake and Fuel System at Global Parts Automotive Store
The intake and fuel system is the basis for the proper functioning of every engine. By choosing the right parts, such as throttle valves, air filters, fuel injectors or fuel pumps, you can take care of your car's performance, reduce fuel consumption and limit exhaust emissions. The Global Parts automotive store cordially invites you to familiarize yourself with our wide range of original used car parts . Regardless of whether you are looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini and others - you will find them with us at competitive prices. We make every effort to ensure that every customer finds the right parts for their car/car with us, and in case of any questions or doubts related to the selection of the right components, we will be happy to help! Please contact us - we are here to help you! For more information and curiosities, we also invite you to our automotive blog .