Wiktionary(0.00 / 0 votes)Rate this definition: 1  smudge(Noun) A blemish; a smear. 2  smudge(Noun) Dense smoke, such as that used for fumigation. 3  smudge(Verb) To obscure by blurring; to smear. 4  smudge(Verb) To soil or smear with dirt. 5  smudge.
This smell might mean that your coolant is leaking from somewhere like a radiator or heater hose. This kind of a problem means it's a good idea to take your car into a professional. If you smell maple syrup outside the car, this might mean that you have a leaking radiator cap or that the radiator itself has a leak.
A coolant leak can come from: 1. cracked radiator 2. cracked coolant hose 3. cracked heater coil 4. cracked engine head The first 3 are easy to fix, and doesnt require too much technical knowledge.eport Abuse. First, you bought a BMW. If you have to worry about how much a coolant leak or minor coolant repair is going to cost; get rid of the BMW and buy a car you can afford!