Coolant thermostat, removing and installing

WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Removing

Fig 1: Identifying Front Engine Cover

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Remove front engine cover - arrows -.

Fig 2: Identifying Bolts & Air Duct

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - arrows -.
Remove air duct - 1 - and - 2 -.
Drain coolant → Cooling system, draining and filling .
Remove front bumper cover →
- 63 BUMPER
- 63 - BUMPERS for BODY EXTERIOR - CABRIOLET
.

Bring lock carrier into service position →
- 50 BODY, FRONT
- 50 - BODY - FRONT for BODY EXTERIOR - CABRIOLET
.
Remove upper part of intake manifold → 24 - FUEL INJECTION SYSTEM .
Remove front coolant pipe → Front coolant line, removing and installing .

NOTE:

Place a rag beneath to catch escaping coolant.

Fig 3: Remove Bolts & Thermostat

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - arrows -.
Remove thermostat with connecting piece.

Installing

Installation is in reverse order of removal, note the following:

NOTE:

Replace seals.

Install front coolant pipe → Front coolant line, removing and installing .
Install intake manifold upper-part → 24 - FUEL INJECTION SYSTEM .
Install lock carrier with attachments →
- 50 BODY, FRONT
- 50 - BODY - FRONT for BODY EXTERIOR - CABRIOLET
.
Install front bumper cover →
- 63 BUMPER
- 63 - BUMPERS for BODY EXTERIOR - CABRIOLET
.

Fill with coolant → Cooling system, draining and filling .

Torque specifications

Component	Nm
Thermostat with connecting piece to cylinder block	9