Soooo I just got my 2005 R53 up and running 4 weeks ago after fixing all this damage from a front end collision. Everything was running great until I noticed a coolant leak while walking towards my car after school yesterday. I checked all the hose clamps and those are dry and seem fine. I replaced the radiator after the accident with a csf from Way Motor Works. I really liked it and it seems to be doing the job really well. I have yet to find time to throw it up on a lift and see where the coolant is coming from. If anyone has any ideas as to where it would be coming from it would be great. It is leaking from 2 spots in the center of the car. I dont believe my headgasket is blown since I still have all my power and it isnt smoking. Please share any and all ideas!

 

Thermostat gasket.

 

Is the thermostat located towards the front middle of the engine?

 

No, thermostat is on left (driver's side) of engine at the head. Water pump is at front middle.

 

If you track the leak to the water pump it could be O-ring related. Was the pump replaced after the accident?

http://new.minimania.com/part/NME865...ry-Oem-R52-R53

 

The water pump was replaced before the accident but the damage wasn't severe enough to hurt the pump. The accident happened in february and the leak started yesterday.