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. 8515188-2
BMW 3 Series E90 E91 LCI N47N Engine Turbo Turbocharger Part Actuator 6NW010430
€56.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9423787-1
BMW F20 F30 LCI M140i M240i 340i 440i B58 Turbocharger Exhaust Manifold 7643147
€113.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7524178
Breather Line BMW E60 E61 E64 Fuel Tank Breather Line Pipe 7524178
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7634486
BMW F10 LCI F20 F30 Petrol N20 Turbocharger Turbo Charger 7634486
€189.95
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. 8507567
BMW F30 F31 F32 N57N N57Z Fuel Air Intake Tube Hose Pipe Silencer 8507567
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7605374
Vacuum Tank BMW F10 F11 F13 N63 N63N Pressure Reservoir Container 7605374
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7552392
BMW 1 3 Series E81 E82 E87 LCI E90 Hose Cooling Module Low-Temperature 7552392
€37.95
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. 7558922
BMW 1 3 Series E82 135i E90 E91 E92 335i Charge Air Outlet Pipe Clamp 7558922
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2227852
BMW E36 Wheel Arch Chip Protection Stone Guard 2227852
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7599042
MAP Pressure Sensor BMW F20 F21 F30 F31 E90 LCI Petrol 7599042
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7207842
BMW X5 Series E70 Window Channel Cover Door Front Right O/S High Gloss 7207842
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7805430-5
BMW X5 E70 LCI X6 E71 40dX N57S Diesel Fuel Pump Injector Injection System Set
€949.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7802592-1
BMW E60 E61 LCI 535d E90 E91 335d M57N2 Bypass Valve Intake Manifold
€113.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 1440102
BMW X5 Series E53 Hose Pipe Tube Elbow Hot-film Air Mass Meter 1440102
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7639994
BMW F10 F11 F20 F21 F30 LCI Fuel Petrol Injector EU6 7639994
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7597587
BMW F20 F21 F30 Intercooler Intake Charge Air Line Hose N13 7597587
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7619008
BMW X1 F45 F46 F48 Mini F55 F56 Cooper S Throttle Body Housing 7619008
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2249461
BMW 7 Series E65 M57N 730d Engine Cooling Radiator Coolant Water Hose 2249461
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7609482-1
Air Filter Box BMW F45 F46 X1 F48 Mini F54 F55 F56 F60 Intake Silencer 7609482
€85.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7588126-1
BMW 1 3 5 F10 F20 F21 F30 F31 Intake Manifold Bracket Cover Petrol N20 7588126
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7568607
Fuel Injector BMW E70 E71 E90 LCI F10 F11 Petrol N55 Injection Nozzle 7568607
€94.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8514094
Injector Fuel Vent BMW F20 F21 F22 F23 F32 F33 LCI Pipe Hose 8514094
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7603052
Vacuum Pipe BMW F20 F30 F33 F82 M2 Petrol N55 Brake Servo Vacuum Line 7603052
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7794573
BMW E60 E61 535d M57N Diesel Connection Pipe Hose Turbo Turbocharger 7794573
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7803847
BMW E60 E81 E87 E90 E91 E92 Turbo Air Filter Pipe Hose 7803847
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 6950936
BMW 5 6 Series E60 E61 E63 E64 Cover Filter Housing Box Upper Part Right O/S
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 4561983
BMW 1 3 5 Series E60 E61 E81 E87 LCI E90 E90N Pressure Hose Assy Pipe Petrol N43
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9299475
BMW G30 G31 Air Duct Channel Footwell Left N/S 9299475
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7789109
BMW E60 E65 E90 E91 Cover Intake Manifold Diesel M57 7789109
€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. 7629155
BMW 1 3 Series F20 F21 F30 F31 Protection Plate 13517629155 7629155
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 6834659
BMW F40 F48 Mini F55 F56 F57 Air Conditioning Suction Pipe Hose Line 6834659
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7805428-7
BMW F01 F07 F10 F11 Diesel N57 Engine Fuel Injection Injector System Set
€759.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7636128
BMW 1 3 Series F20 F21 F30 LCI Fuel Tank Breather Line Resonator Pipe 7636128
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8514093
Injector Fuel BMW F20 F21 LCI Return Line Pipe 8514093
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7610761
HPFP Pump BMW F20 F22 F11 Petrol N55 High Pressure Fuel Injection Pump 7610761
€85.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8508171
BMW F07 GT F10 F11 Air Filter Box Tube Intake Duct Pipe N57Z Diesel 8508171
€66.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7575480
BMW E90 E91 E92 N54 335i Fuel Injection Injector Line Pipe 7575480
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8656548
BMW F46 G20 G21 G30 G31 Mini Cooper F55 F56 F57 Petrol Injector Fuel 8656548
€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. 7635803
Turbocharger BMW F10 F20 F30 125i 320i 520i N20 Turbo Charger Complete 7635803
€327.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8648679
BMW F20 F21 F30 F31 LCI Turbo Charger Heat Shield Plate 8648679
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7805428-11
BMW E90 E91 E92 325d 330d Diesel N57 Injector Fuel Pump Injection System Set
€617.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7537319
BMW E60 E87 LCI E90 E91 F30 F10 Pressure Sensor Fuel High Pressure Rail 7537319
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2990139
BMW X1 Series E84 Cover Fuel Filler Pot Carrier Cap 2990139
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7811125
BMW X1 E84 E90N E91N E92N E93N Coolant Hose Pipe Diesel 7811125
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 6985734
Coolant Pipe BMW E60 E61 LCI Cooling Radiator Water Hose Engine Flow 6985734
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7795393
Intake Inlet Manifold BMW X3 E90 E91 E83 LCi M47N2 With Flap Control
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7807515
BMW 1 3 Series E88 E90 E91 Intake Manifold Vent Hose Petrol N47 N47N 7807515
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8513617
BMW F20 F30 Return Pipe Engine Turbo Charger Oil Line Hose B47 Diesel 8513617
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7210790
BMW F13 Tank Filling Connector Tank Pipe Fuel Clip 7210790
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7823256
BMW F10 F11 F20 F21 F30 N47S1 Diesel Turbo Charger Manifold 7823256
€840.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7519494
BMW 1 3 5 6 Series E60 E63 E64 E87 E90 Hose Heat Exchanger Engine Oil 7519494
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 6930549
BMW 5 6 Series E60 E61N M5 E63 E64 M6 Hose Additional Water Pump Water Valve
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7530976
Breather Line BMW E81 X1 E84 E87 E90 E91 E92 Fuel Tank Hose Pipe 7530976
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 2993153-KAS
BMW X1 E84 Fuel Cap Cover Fill In Flap Kashmir Silver - A72 2993153
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 4518063
BMW 1 3 X1 Series E84 E87 E90 E91 E92 Cylinder Head Thermostat Hose 4518063
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9119169
BMW 5 6 7 Series F01 F10 F11 F12 F13 LCI Heater Water Pipe Hose Inlet 9119169
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7596832
Coolant Pipe Hose BMW F20 F30 F31 Cooling Radiator Line 7596832
€42.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7606650
BMW F20 F21 F30 N13 Turbocharger Heat Resistant Plate Petrol 7606650
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9147359-1
Water Pump BMW F20 F21 F22 F30 F31 F32 LCI Auxiliary Electric 9147359
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8606014
BMW X1 F48 Mini F55 F56 F60 Hose Cylinder Head Radiator Top 8606014
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7812807
BMW E90 E91 F10 Turbo Turbocharger Oil Feed Pipe Exhaust Gas Pressure 7808010
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7585403
BMW E90 LCI F20 F30 Petrol N55 Turbo Charger Oil Return Line Hose 7585403
€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. 8511629-1
Fuel Rail BMW F20 X1 F48 Mini F54 F55 F60 Injection Rail Pressure 8511629
€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. 8508037
BMW F30 F32 LCI 335dX 435dX N57Z Diesel Turbocharger Oil Pipe Line 8508037
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 9223587-1
BMW 1 3 Series F20 F21 F30 F31 N13 Heater Water Hose Tube Pipes Coolant 9223587
€47.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7541738
BMW E90 E91 E92 E93 Air Intake Inlet Front Hood Suction Duct 7541738
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7555192
Engine Air Intake BMW F10 F11 520d N47N Filtered Air Pipe Duct Silencer 7555192
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7810480
BMW E90 E91 F10 F20 F21 F22 F30 F31 Diesel AGR Pipe Intake Manifold 7810480
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7009128
BMW 7 Series E65 E66 E67 High Pressure Pipe Hose Petrol 7009128
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8507565-1
Intake Silencer BMW F10 F11 F30 F31 530d N57N Diesel Cover Part Fuel 8507565
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8576972
BMW X1 X3 E84 F25 Fuel Strainer Heating Pump 3 Pin 7823412
€51.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7552387
BMW E87 E60 E61 LCI E90 E91 E92 Thermostat Cooling Pipe Hose N43 7552387
€23.95
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. 8508097
BMW F30 F32 LCI 335dX 435dX N57Z Connecting Tube Pipe Turbocharger 8508097
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7636153
Vent Pipe BMW F20 E88 F30 Petrol N55 Fuel Tank Breather Ventilation Line 7636153
€32.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7606562
BMW F10 M5 F12 M6 Petrol Inlet Fuel Hose Pipe Line Injection System 7606562
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7799610
BMW 3 5 Series E60 E61 LCI E90 E91 E92 Fuel Pressure Rail Accumulator 7799610
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7797480
BMW 1 Series E81 E82 E87N 116d 118d Diesel Charge Air Line 7797480
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 3421542
BMW X3 E83 2.0d M47N2 Turbo Intercooler Charge Air Line Pipe 3428426
€70.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7639975-1
BMW F20 F30 LCI Mini F55 F56 Fuel Rail High Pressure Petrol 7639975 7639990
€127.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7629640
Fuel Pipe BMW F20 F21 F30 F32 N55 High Pressure Pump Hose Line 7629640
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8631820
BMW G20 G30 Mini Cooper F55 F56 High Pressure Rail Fuel Petrol Sensor 8631820
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7805256
BMW E81 E90 E91 E92 F10 F11 F20 F21 F30 F31 Mini F55 F56 Screw Fuel Injection
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7583900
BMW E90 LCI F20 F30 N55 Engine Turbo Charger Oil Cooling Line Pipe Hose 7583900
€28.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7804171
BMW E90 E92 E60 E64 Air Mass Meter Hose 7804171
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7535897
High Pressure Rail BMW E81 E82 E88 E90 E91 E92 Fuel Petrol N53
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 1433076
Temperature Sensor BMW E46 E60 E81 E87 E90 E91 F10 F20 F30 Water / Oil 1433076
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7607159
Fuel Pump BMW F20 F21 F30 F31 High Pressure Fuel Unit Petrol N13 7607159
€75.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 8512394
Turbocharger Pipe BMW F30 F32 LCI 335dX 435dX N57Z Connecting Tube 8512394
€23.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7526411
Air Filter Box BMW X5 E53 N62 Engine Intake Silencer Air Filter Housing 7526411
€80.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7216530
BMW X3 F25 Fuel Filler Pipe Plastic Tube N47N Diesel 7216530
€42.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 7643226
BMW F20 F30 LCI Turbocharger Coolant Return Pipe Line B48 Petrol 7643226
€37.95
Free delivery - Tue, Sep 16
If paid before 14:00
Part no. 6951946
BMW 1 3 Series E87 E90 E91 E92 E93 Radiator Engine Return Hose Line Pipe 6951946
€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 .