Can anyone tell me where the thermostat is on a 2.8 v-6? And should i attemp to change this on my own. How hard is it?.

Thanks

 

https://www.audiforums.com/m_28482/tm.htm

 

Note:


Always replace seals and gaskets.
Cover the toothed belt with a cloth to protect it from coolant before removing the thermostat.
Removing


Drain coolant.
Bring lock carrier into service position. See: Body and Frame\Radiator Support\Service and Repair
Remove ribbed belt. See: Engine\Drive Belt\Service and Repair
Remove toothed belt guard.
Loosen tensioning roller and take toothed belt off camshaft sprockets, Toothed belt, removing and installing.







Remove connection mounting bolt -1- and remove connection -2-.
Remove thermostat -4-.
Installing
Installation is the reverse of removal, however note the following:


Moisten new 0-ring (item -3-) with coolant.
Install thermostat (item -4-) into engine block.






Note: The thermostat bleeder valve (arrow) must be at the top.









Tighten mounting bolt -1-. Tightening torque: 10 Nm (7 ft. lbs.) .
Install and tension toothed belt.
Install toothed belt guard.
Install ribbed belt.
Fill cooling system with coolant.

 

Trying to diagnose why I lost the heat in my B5 2.8 Audi technician says it could be the thermostat but heater hoses going into firewall next to battery are both hot and temp gauge reads normal, if not a little warm. Coolant level is at MIN mark and even though the system broke open in an accident and was repaired last year, the heat worked then. Just hate to spend $900 to do thermostat/tbelt/pump and still have no heat. Of course, Audi wont pay for a repair even if that's not the problem. Any tips?