![Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding](https://i.redd.it/qr9gd233z4q21.jpg)
Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding
![Volkswagen Workshop Manuals > Golf Mk4 > Power unit > 4-cylinder diesel engine, mechanics > Engine lubrication > Parts of lubrication system > Removing and installing parts of lubrication system > Part I Volkswagen Workshop Manuals > Golf Mk4 > Power unit > 4-cylinder diesel engine, mechanics > Engine lubrication > Parts of lubrication system > Removing and installing parts of lubrication system > Part I](https://workshop-manuals.com/volkswagen/golf-mk4/images/golf-mk4-9434.png)
Volkswagen Workshop Manuals > Golf Mk4 > Power unit > 4-cylinder diesel engine, mechanics > Engine lubrication > Parts of lubrication system > Removing and installing parts of lubrication system > Part I
![I got a golf mk4 1.8 turbo 2001. i got a fault code reading saying N249 Valve not working? can you help me please. I got a golf mk4 1.8 turbo 2001. i got a fault code reading saying N249 Valve not working? can you help me please.](https://www.justanswer.com/uploads/kenwilfy/2009-04-17_121508_Turbocomponents.jpg)
I got a golf mk4 1.8 turbo 2001. i got a fault code reading saying N249 Valve not working? can you help me please.
![Volkswagen Golf GTI Mk IV Belt Tensioner Replacement (1999-2005) - Pelican Parts DIY Maintenance Article Volkswagen Golf GTI Mk IV Belt Tensioner Replacement (1999-2005) - Pelican Parts DIY Maintenance Article](https://cdn4.pelicanparts.com/techarticles/Volkswagen_Golf_GTI_Mk_IV/15-ENGINE-Replacing_Your_Belt_Tensioner/images_large/pic07.jpg)
Volkswagen Golf GTI Mk IV Belt Tensioner Replacement (1999-2005) - Pelican Parts DIY Maintenance Article
![Elsa online. ElsaWin. ElsaWeb. SeatPower unit4 cylinder Fuel-injection engine (1.4 l, 4 valves)Engine lubricationRemoving and installing parts of lubrication systemLubrication system - General components overview Elsa online. ElsaWin. ElsaWeb. SeatPower unit4 cylinder Fuel-injection engine (1.4 l, 4 valves)Engine lubricationRemoving and installing parts of lubrication systemLubrication system - General components overview](https://www.kolhosniki.ru/tmp/elsa/graphics/wi/N17-0203.png)
Elsa online. ElsaWin. ElsaWeb. SeatPower unit4 cylinder Fuel-injection engine (1.4 l, 4 valves)Engine lubricationRemoving and installing parts of lubrication systemLubrication system - General components overview
![Volkswagen Workshop Manuals > Golf Mk4 > Engine > 4cyl. Injection Engine, (2.0 ltr. Engine) (Mexico) > Enginecrankshaft group, pistons > Dismantling and assembling the engine Volkswagen Workshop Manuals > Golf Mk4 > Engine > 4cyl. Injection Engine, (2.0 ltr. Engine) (Mexico) > Enginecrankshaft group, pistons > Dismantling and assembling the engine](https://workshop-manuals.com/volkswagen/golf-mk4/images/golf-mk4-1518.png)
Volkswagen Workshop Manuals > Golf Mk4 > Engine > 4cyl. Injection Engine, (2.0 ltr. Engine) (Mexico) > Enginecrankshaft group, pistons > Dismantling and assembling the engine
![Volkswagen Workshop Manuals > Golf Mk4 > Power unit > 4-cylinder injection engine (5-valve) > Exhaust turbocharger, G-charger > Charge air system with turbocharger > Schematic diagram of turbocharging system > Engine Volkswagen Workshop Manuals > Golf Mk4 > Power unit > 4-cylinder injection engine (5-valve) > Exhaust turbocharger, G-charger > Charge air system with turbocharger > Schematic diagram of turbocharging system > Engine](https://workshop-manuals.com/volkswagen/golf-mk4/images/golf-mk4-8624.png)
Volkswagen Workshop Manuals > Golf Mk4 > Power unit > 4-cylinder injection engine (5-valve) > Exhaust turbocharger, G-charger > Charge air system with turbocharger > Schematic diagram of turbocharging system > Engine
![My VW Golf 1.4 2000 Reg has started to cut out continuously seems to be idling too low....I was told I needed an Idle My VW Golf 1.4 2000 Reg has started to cut out continuously seems to be idling too low....I was told I needed an Idle](https://ww2.justanswer.com/uploads/Mikdermoose/2011-10-22_224952_vw_golf_2000_idle_control_unit.jpg)
My VW Golf 1.4 2000 Reg has started to cut out continuously seems to be idling too low....I was told I needed an Idle
![Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Engine > 4cyl. Injection Engine, (2.0 ltr. Engine) (Mexico) > Engine cooling > Removing and installing parts of cooling system > Parts of cooling system engine side Volkswagen Workshop Service and Repair Manuals > Golf Mk4 > Engine > 4cyl. Injection Engine, (2.0 ltr. Engine) (Mexico) > Engine cooling > Removing and installing parts of cooling system > Parts of cooling system engine side](https://workshop-manuals.com/volkswagen/golf-mk4/images/golf-mk4-1602.png)