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. 06L145722S
Audi Q5 FY 2.0 TFSI Petrol Engine Turbo Turbocharger 06L145722S
€617.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 95514574
Opel Vivaro A 2.0 Dci M9R Diesel Engine Turbo Turbocharger 95514574
€251.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6510906380
Turbo Charger Mercedes Sprinter W906 OM651.955 Hose Housing Part A6510905780
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6420903301
Mercedes-Benz S-Class W221 Air Filter Box Housing Left A6420903301
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 223657458R
MAP Pressure Sensor Mercedes W176 Renault Trafic Air Intake Manifold 223657458R
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7823281
Mini Cooper R55 R56 R57 LCI Diesel Turbo Charger Return Line Pipe 7823281
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7T16-9L440-AE
Ford Transit Connect Intercooler Charge Air Cooler Radiator Diesel 7T16-9L440-AE
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2731402209
Intake Manifold Mercedes W221 M273 Petrol V6 Engine Right O/S Intake A2731402209
€113.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 11367566652
BMW 1 3 Series F20 F21 F30 F31 MINI R55 R56 R57 R60 Solenoid valve (SOLV)
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8571677
BMW G01 G02 30dX M40dX B57 Diesel Fuel Feed Pipes Engine Injector Line 8571677
€89.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 1K0129618BF
VW Passat B7 Air Filter Box Air Intake Unit Housing 1.4 TSI Petrol 1K0129618BF
€94.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 6C1Q6K682CE
Ford Transit MK7 2.2 TDCI Vacuum Box Actuator Turbocharger Turbo 6C1Q6K682CE
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8619928
Breather Pipe BMW F20 LCI N13 118i 120i Petrol Fuel Tank Suction Hose 8619928
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6290901180
Turbocharger Mercedes ML W164 GL X164 Diesel OM629 Left N/S Turbo A6290901180
€218.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7603060
BMW F10 M5 Heat Shield Turbo Charger Protection Cyl.1-4 8689793
€99.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8513655
BMW F10 F20 F30 LCI B47 Engine Intake Inlet Manifold System With Flaps 8513655
€104.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 059145100J
Audi Q7 4L Porsche Cayenne 3.0 TDI CASA Diesel Vacuum Pump 059145100J
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2640901100
Mercedes W205 M264 Intercooler Bracket Holder Mount Support Carrier A2640901100
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7482902
BMW F10 F20 F30 Fuel Tank Filler Cap Cover 7482902
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 038129713BC
Volkswagen VW New Beetle 1.9 TDI Diesel Air Inlet Intake Manifold 038129713BC
€56.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8665631
Injection Rail Mini F56 BMW F40 Petrol B38 Fuel High Pressure Rail 8665631
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8575534
Adjuster BMW E90 N47 G20 N57 Diesel Intake Manifold Flap Actuator 8575534
€37.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7643717
BMW F20 F30 118i 320i ed N13 Exhaust Manifold Turbocharger Turbo Case 7643717
€113.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7162394
BMW 1 3 Series E87 LCI E90 Fuel Filter Sender Pressure Regulator Petrol 7162394
€23.95
Free delivery - Mon, Jun 02
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 - Mon, Jun 02
If paid before 14:00
Part no. 7533346
BMW 1 3 Series E81 E87 E90 Petrol N46 Radiator Water Return Hose Pipe 7533346
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 13717563812
BMW Mini Cooper R55 R56 R57 R58 R59 LCI N12 Air Intake Boot Pipe rubber boot
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 03L906461A
Air Flow Mass Meter Audi A4 B8 A5 8T VW Passat B7 VW Golf 6 Sensor 03L906461A
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7503666
BMW X5 Z4 Series 1 E53 E85 Hose Pipe Tube Elbow Manifold Vacuum Set 7503666
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8519130
BMW F10 F11 LCI B47 Holder Carrier Intake Silencer Right O/S 8519130
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6290942008
Mercedes ML W164 CDI Diesel OM629 Air Intak Pipe Manifold Right O/S A6290942008
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 93161978
Vauxhall Opel Vivaro A Oil Pipe Turbocharger Turbo Feed Line Hose 93161978
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6511800900
Mercedes Sprinter W910 Oil Pipe OM651 Turbocharger Turbo Return Hose A6511800900
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2578302400
Mercedes A238 AMG Dashboard Centre Air Vent Mid Right O/S A2578302400
€80.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8200771225
Nissan Qashqai Injector Cold Start Injector Bracket Mount 8200771225
€37.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A1661500379
Intake Hose Mercedes W168 M166 Petrol Air Pipe Module Support Mount A1661500379
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2640701200
Mercedes W205 M264 High Pressure Injection Fuel Pump Unit Petrol A2640701200
€189.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 06L127025N
VW Volkswagen Golf 5G 2.0 TFSI CHHA Fuel Pump High Pressure 06L127025P
€118.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2700109703
Oil Separator Mercedes W213 M270 M274 Petrol Engine Breather Vent A2700109703
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2720160034
Mercedes SLK R171 Petrol OM272 Crankase Breather Oil Separator A2720160034
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8514148
BMW F10 F11 LCI 518d 520d Diesel B47 Fuel Pump Injector Injection System Set
€564.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7788679
BMW X3 X5 E60 E61 E65 E83 E53 M57N Fuel Pressure Rail Accumulator
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 9250566
Mini Cooper F55 F56 F57 F60 Coolant Hose Pipe Tube 9250566
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2468303615
Mercedes W176 W246 Diesel Air Conditioning Heater Pipe Hose Line A2468303615
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7603514
BMW F10 F20 F30 Engine Cooling Radiator Coolant Water Hose 7603514
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 9X23-9F287-AB
Jaguar XF 250 Air Hose Intake Breather Ventilation Intercooler Tube 9X239F287AB
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 059131789S
Audi A5 8T 3.0 TDI CCWA Diesel Exhaust Manifold Compensator Left N/S 059131789S
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7213035
BMW X3 F25 Fuel Filler Pot Flap Cover Carrier Cap Trim Panel 7213035
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7838260
BMW E90 E92 E93 LCI M3 Fuel Rail Petrol Idle 7838260
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 1K0919051CL
Audi TT 8J Fuel Pump Tank Sender Pump Unit Petrol 1K0919051CL 1K0919051BH
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 06K133317AA
Audi Q5 FY Petrol Fuel Injectors Injection Rail Line Pipe 06K133317AA
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 4G0819209E
Audi A7 4G8 Upper Interior B Pillar Column Air Vent Grille Left N/S 4G0819209E
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 05L201360C
Audi Q2 GA 35 TDI Fuel Return Line Leak Off Rail Pipe Line Hose 05L201360C
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2055013801
Bleed Line Mercedes W205 Coolant Expansion Tank Shut Off Valve A2055013801
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2740182400
Crankcase Ventilation Line Mercedes W213 X253 M274 Breather Vent A2740182400
€47.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6510906380
Turbo Charger Mercedes Sprinter W906 OM651.955 Hose Housing Part A6510906080
€47.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 06H133201AN
Audi A5 8T 2.0 TFSI Quattro Petrol Air Intake Inlet Manifold Unit 06H133185BH
€99.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 04E127025B
Audi A1 8X 1.4 TFSI CZCA Petrol Fuel Pump Additional Pump 04E127025B
€37.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 2284693
BMW 3 4 Series F80 M3 F82 F83 M4 Petrol Fuel Pump Delivery Module 2284693
€56.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6540980083
Intake Mercedes W213 C238 S213 Diesel OM654 Air Intake Hose Pipe A6540980083
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7798446
Mini Cooper SD R55 R56 R57 LCI N47N Fuel Pump Injector Injection System Set
€408.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A1560701795
Fuel Rail Mercedes W204 W212 Petrol M156 Fuel Distributor Injectors A1560701795
€208.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7559525
BMW 3 5 X3 Z4 E60 E83 E85 E90 E91 352 525i Petrol N52 Intake Manifold Air Inlet
€56.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 6939213
BMW Z4 Series E85 Roadster Cabrio Hose From Radiator From Additional Water Pump
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 057145770J
Audi Q7 4L 4.2 TDI Air Intake Manifold Bridge Pipe Line Hose 057145770J
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7810615
Air Charge Line BMW F10 F11 520d 525d N47N Diesel Intake Manifold Hose 7810615
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7789723
BMW 5 Series E60 E61 LCi M57N Radiator Cooling Hose 7789723
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 2283593
BMW 3 Series E90 E92 E93 M3 Radiator Hose Heater Feed Pipe Oil Cooler 2283593
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2710900629
Mercedes W203 Air Intake Pipe Air Flow Mass Meter Pipe Inlet Hose A2710900629
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6461400087
Intake Silencer Mercedes Sprinter W906 Pipe Line Hose Diesel A6461400087
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 06H905110P
VW Volkswagen Golf 5G 2.0 TFSI CHHA Fuel Injector Ignition Coil 06J905110G
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 9228239
BMW X3 F25 Pressure Pipe Air Conditioning A/C Condenser Water Hose Line 9228239
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 0281002437
Ford Focus MAP Air Pressure Sensor 0281002437
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7529753
BMW E81 E87 E90 Fuel Tank Breather Valve 7512582
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7548224
BMW 1 3 Series E81 E87 E90 E91 E92 Cooling Coolant Thermostat Water Hose Pipe
€47.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7552000
BMW E90 320si N45 Coolant Hose Intercooler Pipe 7552000
€28.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8513614
Oil Pipe Mini F55 F56 BMW F45 X1 F48 B47 Turbocharger Oil Line 8513614
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 1428849
BMW X5 Series E53 Radiator Coolant Vent Pipe Hose Petrol 1428849
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2600104900
Engine Oil Pipe Mercedes W177 M260 AMG Filler Filling Hose Line A2600104900
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7804640
BMW E81 E87 LCI 123d N47S Connecting Tube Pipe Turbocharger Turbo 7804640
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8519132
BMW 5 Series F10 F11 LCI B47 Holder Intake Silencer Top 8519132
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2468320090
Mercedes-Benz A B Class W176 W246 Air Intake Suction Pipe Hose A2468320090
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7643177
BMW F20 F21 F30 LCI M140i 340i Line Pipe Hose Crankcase Turbocharger 7643177
€37.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7588417
BMW Z4 E89 F20 F21 F30 Cylinder Head Ventilation Line Hose Pipe Sensor 7588417
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 059131790S
Audi A5 8T 3.0 TDI CCWA Diesel Exhaust Manifold Compensator Right O/S 059131790S
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A2640980000
Air Intake Pipe Mercedes W205 W213 M264 Intercooler Charge Line Hose A2640980400
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. YC1Q-9N868-GA
Ford Transit Mk6 2.4 TDCI Diesel Fuel Injection Pressure Pipe Hose YC1Q-9N868-GA
€56.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7L6117336B
Volkswagen Touareg 7L Air Intake Channel Guide Duct Right O/S 7L6117336B
€47.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. A6395283782
Intercooler Hose Mercedes Vito W639 OM651 Charge Air Cooler Line A6395283782
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 079919523B
Audi S3 8V Q5 8R Petrol Coolant Temperature Sensor 079919523B
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 028145736AH
Audi A4 B7 2.0 TDI Turbocharger Oil Feed Pipe Hose Lubrication 028145736AH
€56.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7624031
Air Intake Duct BMW F07 GT F10 F11 F12 F13 N63 Petrol Channel Pipe 7624031
€32.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7454341
BMW G20 G21 Adblue Filler Neck Cap Pipe Hose Additive Line 7454341
€56.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7624012
Vacuum Box BMW F20 F21 Turbo Solenoid Valve Inlet Purge Breather Pipe Petrol
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8472282
BMW F20 F21 F22 F30 F32 LCI B47 High Pressure Fuel Pump 8472282
€123.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7810752
BMW 1 3 5 X3 Series F20 F21 E90 F10 F11 LCI Throttle Body Diesel N47N 7810752
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 8512381
BMW F15 F16 F30 F32 Diesel N57N N57Z Intake Filtered Air Pipe Tube Hose 8512381
€23.95
Free delivery - Mon, Jun 02
If paid before 14:00
Part no. 7617363
Mini Cooper F55 F56 F57 F60 Radiator Engine Cooling Coolant Water Hose
€23.95
Free delivery - Mon, Jun 02
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 - Mon, Jun 02
If paid before 14:00
Air & Fuel Delivery
Intake and Fuel System: Key to Your Engine's Performance
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 .