I am having slow coolant leakage. About a quart of coolant leaks out each week and I have to keep adding new coolant to top it off.
I took it to a Garage that specialized in Mercedes and BMW's (where I normally take my car), but recently everytime someting goes wrong they want to replace many items at a high cost. For example, I had a sligt skreak and they replaced all pulleys (tension arms assemblies at a cost of near $1000.
When I explained my coolant loss problem, they came back with a $1400 repair estimate that called for replacing the radiator, water pump, coolant resevior and thermostat and all hoses. Interesting as they had just replaced my thermostat about 3 months ago.
My car is a 2003 325i with 84K miles. Should I follow their plan and just go in and replace all components that is part of the cooling system, or is there a way to isolate which element is the culprit and repair only that faulty item?