Audi Workshop Service and Repair Manuals > A4 Cabriolet Mk2 > Power unit | 6-cylinder diesel direct injection engine (TDI), mechanics | Engine cooling | Removing and installing parts of cooling system | Removing and installing coolant pipe (bottom left)

Removing and installing coolant pipe (bottom left) - engine code letters BDG, BDH

Removing

–	Drain off coolant → Chapter.

–	Remove front exhaust pipe with main catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.

–	Remove starter catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.

–	Remove exhaust gas recirculation cooler → Chapter.

–	Unscrew bolt -3- and also bolt at rear of exhauster pump.

–	Disconnect coolant hose -arrow- at coolant pipe (bottom left) from coolant pipe (front).

–	Remove coolant pipe (bottom left).

Installing

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

Note

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

–	Install exhaust gas recirculation cooler → Chapter.

–	Install starter catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.

–	Install front exhaust pipe with main catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.

–	Fill cooling system → Anchor.

Tightening torques

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