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. 8514146-4
BMW F45 F46 218d X1 F48 18d B47 Diesel Set Injector Fuel Pump Injection System
€569.95
Free delivery - Mon, Sep 15
If paid before 14:00
Part no. 7785449-4
BMW E87 E90 E91 Diesel Engine M57 Vacuum Pipe Hose Line 7785449
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7801992-1
BMW E87 LCI E90 120d 320d N47 Fuel Regulator Pressure Accumulator 0281002949
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7560918
BMW E90 E92 E93 Intake Manifold Panel Intake Trim Cover Petrol 7523720
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8058623
Fuel Tank BMW X3 F97 X4 F98 Breather Line Pipe Hose 8058623
€42.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8514207
BMW F20 F21 F30 F31 LCI B47 Vacuum Resorvoir Tank Box 8514207
€37.95
Free delivery - Tue, Sep 16
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 - Tue, Sep 16
If paid before 14:00
Part no. 7164398
BMW X5 E70 Feed Pipe Fuel Tank Line X6 E71 Diesel 7164398
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7565963
BMW E82 E88 E90 E91 Vacuum Pipe Hose Line N54 Petrol Engine 7565963
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7800604
Fuel Pressure Hose BMW E87 LCI E90 E91 120d 320d 520d N47 Diesel Injection Pipe
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8070528
Seat Head Rest BMW F30 F31 F34 LCI Cover Left N/O/S Leather Black 8070528
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 4561984
BMW E60 E81 E87 E90 LCI Pressure Hose Petrol Fuel Pipe Petrol N43
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7597871
BMW F30 E90 LCI Throttle Body N55 F80 M3 F87 M2 F82 M4 S55 7597871
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7794260-2
BMW E60 E61 LCI 525d 530d M57N2 Turbocharger Turbo Motor Actuator Garrett
€113.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7606649
BMW 1 3 Series F20 F21 F30 F31 N13 Turbo Charger Heat Shield Engine 7606649
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8577648-2
High Pressure Fuel Pump BMW E90 LCI F20 F21 F30 F31 F32 316d 318d N47N 7823452
€113.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7524412
BMW E81 E87 E90 E91 116i N45 116i 1.6 316i N43 Air Filter Box Intake Silencer
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7809321
BMW E70 E71 M57N2 N55 N57 Charge Air Cooler Intercooler Radiator Diesel 7809321
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 3421960
BMW X3 E83 LCI Turbo to Intercooler Pipe Charge Air Line 3421960
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 1438761
BMW E46 Intercooler Pipe Intake Hose 1438761
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7800346
BMW 3 5 Series E90 E91 LCI F10 F11 N57 Vacuum Hose Pipe Engine 7800346
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 6942890
BMW E65 E66 Air Intake Pipe Hose 6942890
€28.95
Free delivery - Tue, Sep 16
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 - Tue, Sep 16
If paid before 14:00
Part no. 7216539
Fuel Hose BMW X3 F25 X4 F26 Diesel Fuel Supply Feed Line Pipe 7216539
€56.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7808757
Oil Pipe BMW E90 LCI F20 F30 N47N Turbo Charger Lubrication Line Hose 7808757
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8510586
BMW F20 F30 F32 Vacuum Pipe Hose Engine Pipe Line 125d 325d 425d N47S1 8510586
€47.95
Free delivery - Tue, Sep 16
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 - Tue, Sep 16
If paid before 14:00
Part no. 7797406
BMW E60 LCI E81 E87 E90 E91 N47 M57N2 Turbo Turbocharger Return Pipe
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8575040
Resonator BMW G30 G11 G05 B57 Diesel Air Intake Pipe Inlet Silencer 8575040
€80.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7790700-1
Intake Manifold BMW E65 730d M57N2 Inlet with Blinded Flap Control 7790700
€42.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7121096-1
BMW E60 E61 LCI E65 Front Headrest Adjuster Motor Control Unit With Memory
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7550466
BMW E60N E61N E81 E82 E87N E88 E90 E90N E91 E91N Heating Element
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7550919
Vacuum Pipe BMW E60 E61 LCI E81 E82 E88 E90 E92 E93 Petrol Engine 7550919
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7185152
BMW Mini Cooper One R60 R61 Activated Charcoal Fuel Filter Vent 7185154
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9329644
BMW 1 3 Series F20 F21 F30 Cooling Radiator Water Hose Pipe 9329644
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8513454
BMW F10 F12 530d 535d 640d N57N N57Z Air Intake Silencer Duct Pipe 8513454
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7848038
Turbocharger Heat Shield BMW F80 M3 F82 M4 S55 Insulation Plate Cover 7848038
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9184010-1
BMW X3 F25 X4 F26 Cover Shield Air Filter Box Microfilter Panel 9184010
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8509323-1
BMW E87 E90 F10 F20 F30 Turbo Vacuum Pressure Converter Diesel 8509323
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8671420
BMW G20 320i G30 X3 G01 Petrol B46 B48 Support Brace Intake Manifold 8671420
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7837284-1
BMW E90 E92 E93 LCI M3 Fuel Line Rail Injection Pipe Injector 7837284
€170.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7640279
BMW Z4 E89 F10 F11 F20 F30 F31 Petrol N20 Engine Vacuum Pump 7640279
€42.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7556549
BMW 1 3 Series E82 E88 E90 E91 Intake Air Duct Pipe Hose 7556549
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8616524
BMW F20 F21 F30 F31 LCI F32 B48 Radiator Water Coolant Hose Pipe 8616524
€66.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7523290
BMW E39 E46 E60 E61 E83 Inlet Intake Manifold Petrol M54 7523290
€47.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2751617
Mini R56 R57 Battery Valve Breather Vent Hose Pipe R55 2751617 1377745
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 4737924
BMW 1 3 Series F20 F21 F30 Intake Manifold Charge Air Line Hose 4737924
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7541452-3
BMW X3 E46 E60 E61 E65 E83 M54 Fuel Injector Rail With Injectors 7541452
€61.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7164286
BMW X5 E70 Diesel Pipe Fuel Line Hose 7164286
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7791477
BMW E46 E60 E83 E53 M57N Turbocharger Lubrication Line Oil Feed Pipe 7791477
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8597819
Fuel Pump F20 F21 F30 E90 E92 N47N High Pressure Fuel Pump 7810696
€170.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7568246
BMW 7 Series E65 E66 E67 Return Hose Pipe 7568246
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7542499
BMW Z4 Series E85 Fuel Tank Breather Line Pipe 7542499
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8664527
Vacuum Pipe BMW G20 G21 Vacuum Hose Brake Servo Line 8664527
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8577647-1
BMW X1 E84 18d 18dX Diesel N47 143HP Set Fuel Pump Injector Injection System
€569.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7639990
Fuel Injector BMW F20 F21 F30 LCI Mini F55 F56 Petrol Injector B38 B48 7639990
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7522938
Intake Manifold BMW E87 E90 116i 118i 316i 318i N45 N46 Air Inlet 7522938
€23.95
Free delivery - Mon, Sep 15
If paid before 14:00
Part no. 8580210
AdBlue Metering Unit BMW G20 G30 Diesel B57 330d 530d SCR Nozzle 8580210
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7541089
Mini Cooper S R52 R53 W11 Fuel Tank Breather Valve Line Pipe Hose 7541089
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8642294-1
Injector Bracket Set BMW F20 F30 LCI Mini F60 Petrol B38 Injector Mount 8642294
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7797884
BMW E81 E87 LCI E90 E91 E92 Pressure Hose Assembly Pipe Diesel N47
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7556118
BMW E60 LCI E81 E90 E91 E92 E93 F01 F10 F11 Throttle Body Actuator 7556118
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7797654-1
BMW E60 E61N E81 E82 E84 E87N E88 E90N E90 E91 E91N Vacuum pipe
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7540324
Intake Silencer BMW E65 730i N52 Rubber Boot Resonator Air Intake Unit 7540324
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7799995
BMW 3 Series E90 E91 E92 E93 LCI N57 325d 330d Fuel Return Line Pipe 7799995
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8658487
Thermostat Return Pipe BMW F40 Mini F55 F56 Heater Hose Line 8658487
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7804384
BMW X5 E53 E60 E87 E90 E91 E92 M47 M57 Throttle Body Housing Assy 7804384
€66.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7539194
Air Filter Box BMW E65 E66 730i N52 Air Intake Silencer Filter Box 7539194
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7601515-1
BMW F20 F21 F30 Fuel Tank Breather Valve Line Hose Pipe 7601515
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7848039
Turbocharger Heat Shield BMW F80 M3 F82 M4 S55 Insulation Plate Cyl 1-3 7848039
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7561428
BMW 5 6 7 E60 E61 E63 E65 N62N 540i 650i 740i Engine Oil Pump 7561428
€227.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7186454
BMW X3 E83 LCI 2.5si 3.0si N52N Fuel Filter Pressure Regulator Petrol 7186454
€75.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2753073
Mini Cooper One R55 R56 R57 R58 R59 Intake Manifold Scoop Air Inlet 2753073
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2993153-TS
BMW X1 E84 Fuel Cap Cover Fill In Flap Titansilber Titanium Silver 354 2993153
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7792203
Temperature Sensor BMW E60 E87 E90 Air Intake Diesel 7792203
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7503666-1
BMW X5 Z4 Series 1 E53 E85 Hose Pipe Tube Elbow Manifold Vacuum Set 7503666
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8506546
Injector Pipe BMW F10 F11 F30 F32 Diesel N57 Fuel Pressure Hose Cyl 1-3 8506546
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7545355
BMW E60N E81 E87 E87N E90 E91 N LCi Bracket Injection Tube 7545355
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8507688
Fuel Hose BMW F30 F31 F32 F36 Diesel N57 Injection Rail Return Line 8507688
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7506923-1
BMW X5 E60 E61 E65 E66 E53 N62 Fuel Injection Rail 7506923
€80.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7605638-2
Air Intake Pipe BMW F22 F30 F32 N20 Intercooler Tube Hose Line Silencer 7605045
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7797885
BMW E90 E91 E92 LCI F30 F10 F01 Pressure Hose Assy Pipe Fuel Injector N57
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7503145
BMW X5 Series E53 3.0i Rubber Boot Air Intake Resonator Tube Pipe Hose 7503145
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2246175
BMW E36 E39 M51 Diesel Turbo Vacuum Pressure Converter Solenoid 2246175
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2398549
Turbo Oil Line BMW F20 F21 F30 F31 LCI Mini F55 F56 F60 Feed Line Pipe 2398549
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7502444
BMW E46 E60 E61 X3 E83 M54 Petrol Throttle Housing Body 7502444
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7526861
BMW 1 3 Series E87 E90 Intake Inlet Manifold Angle Connector Petrol 7526861
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7796064
BMW E60 E61 520d M47N2 Diesel Engine Fuel Delivery Feed Line 7796064
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7620946
BMW F10 F20 F21 F30 LCI High Pressure Rail Fuel Petrol Sensor 7620946
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7823400
Fuel Return Line BMW F07 F10 F36 N57N Pipe Hose 7823400
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8506547
Injector Pipe BMW F10 F11 F30 F32 Diesel N57 Fuel Pressure Hose Cyl 4-6 8506547
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7800609
BMW 1 3 Series E81 E87 LCI E90 120d 320d 520d N47 Injector Pipe Pressure Hose
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7846245
BMW 3 4 Series F80 M3 F82 M4 Charge Air Line Hose Tube Cylinders 1-3 7846245
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7625260-1
BMW F20 F21 F30 F31 Petrol N13 Vacuum Pump 7625260
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7804638-4
BMW 1 E81 E87 LCI 123d N47S Housing Cover Turbocharger Turbo Part 7804638
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7792869
BMW E65 730d Diesel M57N2 Fuel Pipe Return Line Hose Injector 7792869
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7798341
BMW X5 E70 3.0sd 3.0d M57N2 Airbox Intake Pipe Inlet Duct 7798341
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8514146
BMW F20 F21 F30 F31 LCI 118d 318d B47 Diesel Fuel Injector 8514146
€70.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7807991-3
BMW E90 LCI F10 F20 F21 F30 Diesel N47N Air Inlet Intake Manifold 7807991
€23.95
Free delivery - Tue, Sep 16
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 .