i have the same problem. the smell reminds me of rotting cabbage.transporter said:I tow a twin axle caravan 1600 kg; my 2005 2.2 dci tows it very well, powerful and easy cruising, 22 - 26 mpg. Having said that, there is matter of concern: when reversing the outfit I have to be very careful should, say, a reverse up a gradient or a tight reverse manoeuvre be required; the reverse gear ratio is quite high and clutch slipping with higher revs than I like is necessary, which has resulted in a smell of burning clutch. I understand this is a problem with the x trail which could have been avoided by the provision of a high/low ratio on reverse gear. Best regards to all.