HELP!!!! Smoke coming out of air vents

[p7 tus]

Whilst driving into work this morning after around half an hour I found myself sitting in the usual traffic. Feeling a bit hot I turned up the vent only to find to my horror that smoke started to pour out of the middle two on the dash. This continued for approx 5 mins and then stopped. Whilst this was happening I also noticed that the water temp got upto 99 but dropped once the fans kicked in. Any ideas what could have caused this. Do you think it was a one off and nothing to worry about or do I call the garage a get her booked in???? HELP PLEASE.

[p7 tus]

Not sure but there was an odd smell at the time.

[p7 tus]

whitey said:

what colour was the smoke? Might have been something falling on the exhaust and burning.

If that was the case then why would it come out of the vents???

[p7 tus]

julesv said:

I had a similar thing in my car. Turned out to be a leaking heater matrix which was causing a fine mist of coolant to come out of the vents. If you direct the air to the screen does it mist up with a sort of oily film?

Yes it does.

[p7 tus]

Do you think it could be a loose pipe? With regard to the coolant i've been topping it up more than usual. Thanks for the advise

[p7 tus]

Will phone the garage now. Thanks for you help.

[p7 tus]

Just spoke to TVR Barnet and they said that it is VERY RARE for a heater matrix to go on a Tuscan and the fact that i'm loosing coolant is a worry so bring her in without delay PLEASE NOT A 3RD REBUILD!!!!!!