Every now and again after I've driven my Jazz into the garage I notice a smell of ammonia. I called the dealer and the service centre said they'd no idea why and it probably didn't matter. I get it after driving home from work which is a 12mile journey so the car should be well warmed up. Any ideas?

The Jazz is about 4 months old and 4k miles on the clock.

 

it's gotta do with your exhaust. Something about teh cat. I can't remember exactly what it was but the 2000 Toyota 4RUnners had the same problem. nothing serious. (just dont run the car with the garage door closed!!)

 

could it be the ethanol they add in the gas these days?