I pulled the radiator from my 82 240D over the Christmas break because I had to replace my fan shroud (the old one basically fell apart...). I took the opportunity to flush the radiator once I had it back in, then filled with coolant. The coolant level has been consistent, and the engine is running about 10 degrees C lower than it was before the flush (lots of crud in the radiator).

However, now I notice a strong smell like fingernail polish in the car, especially if it's been sitting for a while (for example, I really notice it when I get in the car to go home after work...)

Any thoughts?