Excessive Steam From Exhaust

[a-shah]

Hello

I am new to owning a Lexus and have a question which hopefully members on here can advise on.

I have a is250 2008 and get a considerable amount of steam from the exhaust whilst at the lights or in traffic. As soon as I accelerate, it goes away.

I'm certain it isn't smoke and it smells of steam. I also get the same humid/steam smell from the car heater in the cabin.

Normally I would expect the steam on a cold morning but I get this even after a long drive on the motorway.Even when it is relatively mild.

The car isn't losing coolant or at least it isn't losing a measurable amount.

Just to add: The car drives perfectly with no noticeable issues with acceleration and I have a tendency to drive very light footed and thus achieve around 32 MPG with mixed driving.

Any advice??

[ChumpusRex]

Mine does the same. I noticed it last Winter. The car runs fine otherwise.

I think it's just the way the car is.

[IHgs300]

The is200 is the same.

[a-shah]

That's good to hear.

Puts me at ease. It was the only issue I had with this fine car.

[IHgs300]

It's just moisture turning to steam as exhaust warms up.

[blackcts]

If it's not loosing big amounts of coolant - I wouldn't worry.

[a-shah]

Thanks for the all the messages.

I'll keep an eye on the coolant but as it drives perfectly fine, i'll stop worrying about it.