I just bought one for my sons car it was about $100 but a project to do
You can buy a BEHR OEM thermostat with Housing for $55 from several online parts stores: http://www.partsgeek.com/mmparts/thermostat/BMW/325i.html
is in hard to replace a thermostat on a 2001 bmw 325i
The thermostat on a 1987 BMW 325i can be found by following the upper radiator hose. The thermostat will be located on the side of the engine.
Take it to a mechanic . That should be ur best bet
184 horsepower for the 2002 BMW 325i
its ur talking about an e30 BMW , then just follow the upper radiator hose back tot he engine and remove the housing where the hose goes to and thermostat is there.
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
$2000
12021
215
189hp
20909
Where is the starter located on my 2003 BMW 325i