Have an 02 model 95 estate with 55k on the clock, full service history and I'm really pleased with it, but ..... when under load like towing our caravan, it's got what I would describe as a "judder". This doesn't affect the performance at all, but my local Saab dealer can't find anything wrong. Nothing's showing on the diagnostics and no lights display.
It tends to be as it warms up and I've had to slow down and once it starts, it just keeps doing it. By keeping in a gear lower than you'd expect to be in, it doesn't do it and as soon as the caravan is taken off it disappears ! Very difficult to replicate, but have managed on a couple of occassions without the caravan on.
Has anyone else had similar and if so, what's the problem and cure please? I'm really worried that something's going to go bang !