Have you recently added oil or other fluids that could be dripping on the manifold and causing smoke? also check to see if any of the lines to the various fluids are leaking- even a little can cause smoke if the drips land right. Also check the bonnet sound proofing not touching the engine or do you get more smoke after it has been raining if so check for trapped water I'm not sure but could be your battery shorting out on the bonnet when you hit a bump in the road unless your battery is under the back seat if so ignore the last bit I wrote
No thermostat, no coolant, no waterpump. Basically you have no coolant circulating.
Coolant light, meaning low coolant, or overheating.
It is possible that the gasket could leak between cylinders. The overheating and coolant loss would happen if the gasket was failing around the coolant passages.
If it's overheating, it cold be thermostat, radiator or possibly other problems. If it's not overheating it could be the coolant level sensor.
Low coolant, bad coolant tank cap, stuck thermostat, or clogged coolant line.
Too little coolant, or a plugged coolant line.
Either low coolant level or the engine is overheating.
AnswerThis is a symptom of an overheating engine. See "Related Questions" below for an excellent trouble-shooting guide to overheating problem.
Sounds like you need a tune up By itself low coolant would only cause overheating, if it is overheating that can cause runnimg complaints.
if the coolant light is flashing red it means it's overheating (DO NOT DRIVE), check coolent level "if level is fine", it may be your thermastat. if coolent level is low check your coolent hoses. (allow engine to cool before checking)
well, check your oil, engine coolant, and your radiator.
overheating