Nissan Problems

Diesels work at their best when they're running fully warmed-up and for long periods. If you aren't doing a reasonable amount of kilometres you can have trouble with the DPF system in the car, which can become clogged and require servicing to clear it. In your situation, doing very short trips to and from work each day I would buy the petrol variant.

Not significantly. If you’re interested in a current model Quashqai I would wait until just before the new model is due and take advantage of the run-out sales that will surely come.

I would rule out the CX-7 on the basis of poor fuel consumption, the performance of the iX35 petrol version is a little lacking, the Tucson is a better car, but I would suggest the X-Trail is probably your best bet.

The transmission in your car is a CVT and changing the oil is definitely recommended. If you doubt that the full service hasn't been done go back to the dealer and ask for an explanation.

It’s unlikely to be electrical, or the gauge itself. It’s more likely to be the thermostat, but before you do anything make sure the cooling system is filled to the full mark.

The best thing you can do is to go around to various dealers and check a number of vehicles to see how they work for you.

They’re generally sound, but there are a couple of things to be aware of. If it’s a manual, look for a worn clutch. They are expensive to replace. Check for shuddering, hesitations, or a reluctance to drive if it’s got a CVT. Diesels are prone to blocking of the DPF filter if they’re only driven short distances and don’t get a chance to regenerate the way they are designed to do.

The Patrol is a big, tough wagon and generally bulletproof, but I wouldn't recommend buying a 3.0-litre turbo-diesel model earlier than 2005. They had lots engine problems, but with your budget you should be able to buy a later model that isn't prone to engine failure.

It's odd that it only does it under acceleration. That makes me think it's not tyres or alignment; have the driveline checked, particularly the CV joints.