I have a second hand 1.8tdci mondeo with approx 38k on the clock, it's an 07 plate. I've had it for 4 weeks but over the last week or so there has been a really sour pungent burning smell when I start the engine, almost like burning oil inside the passenger area. I think it's only when the heater is on to heat - I am still testing out the theory that when I put it to cold the smell disappears (it's hard to tell). There is no visible smoke inside or outside the car. I have a 10 month old baby and I really don't like the fact that I am breathing it in, never mind baby too. I have tried not to use the car because of this problem
Since it's been cold and snowy I have had the pleasure of standing outside while the car heats up, but I can smell the smell outside too. Might be the exhaust? The fumes do not look dirty or blue. I had a quick look at the oil, it's dark and the level was OK. I looked under the bonnet for any leaks, but I couldn't see anything. The car was serviced and MOT'd last month and everything was OK.
I should point out I am a female (be nice to me please), and was hoping that anyone could give me some pointers on what this might be? I do have the car booked into a local garage (not a dealer) for a check. Am worried I have a major issue here....