Over the last week or two I've noticed this rotten eggs smell. First time I had someone in the car and thought they'd let a sly one out!

Seems to be that it's only started since I've started using the heater and fan.

I know with new petrol cars the catalytic converter can smell like this but mine's a diesel and has covered 65k. miles.

Any ideas?

Also, when the cars been parked up it drips. Not much, but it's right at the front on the passenger side and is quite black and oilyish but I don't think it's engine oil.

Haven't had chance to have a poke around yet but has anyone else had this?

A couple of years ago I had an alfa 166 with similar symptoms and it was a leaking heater matrix.

Could be you A/C has bacterial contamination.

As has been said, I would examine the heater matrix.

visfix said:

As has been said, I would examine the heater matrix.

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How difficult are they to replace?

Yellow Peril said:

Could be you A/C has bacterial contamination.

Click to expand...

When I was having the cam-belt changed I asked for the A/C to be recharged but the dealer said they couldn't do it as there was a leak on the system. Said they would have to get some nitrogen to check it out. I haven't bothered with that. Any connection?

The small can also be caused by an over-charging battery, although this doesn't explain the leak. Don't ignore this possibility though as an over-charging battery can apparently explode.