Audi Workshop Service and Repair Manuals > A4 Mk2 > Power unit | 8-cylinder engine (4.2 ltr. 5-valve with timing chains), mechanics | Engine cooling | Removing and installing parts of cooling system | Removing and installing coolant pipe (left-side)

Removing and installing coolant pipe (left-side)

Special tools and workshop equipment required

t	Hose clip pliers -V.A.G 1921-

Removing

–	Remove engine: Vehicles with manual gearbox → Chapter; vehicles with automatic gearbox → Chapter.

–	Remove bolts -1- and -2-.

Note

To prevent fluid from escaping, the hose -arrow- remains attached to the power steering.

–	Unbolt dipstick guide tube on cylinder head -arrow- and lift out upwards.

–	Remove bolts -1- and -2-.

–	Loosen hose clips -arrows- and detach coolant pipe (left-side) from coolant hoses.

Installing

Installation is carried out in the reverse order; note the following:

Note

t	Renew O-ring.

t	Secure all hose connections with the correct type of hose clips (same as original equipment) → Parts catalogue.

–	Renew O-ring on guide tube for oil dipstick and insert guide tube into hole in top section of sump.

–	Install engine: vehicles with manual gearbox → Chapter; vehicles with automatic gearbox → Chapter.

Tightening torques

Component		Nm
Coolant pipe (left-side) to cylinder head		10
Guide tube for dipstick to cylinder head		10
Return pipe for	Bracket	10
power steering to:	Engine support	10

Audi Workshop Service and Repair Manuals