If you're looking at a Zafira B (late 2005 on) then the 2.2 auto will be most reliable. You may read some negative comments on the 2.2 direct, but since the fuel pressure regulator has been re-called (Vauxhall will still do it for free if you find one that hasn't been done yet), there's little to complain about. We've had a 2.2 auto for 4 years and 70k miles now, it seems unbreakable, so much so we've bought another (younger one) to match! You will find the 2.2 auto is priced a lot cheaper than the diesel. £5k should get you a 2006 car with reasonable miles. For the diesel, you'll be looking at much, much higher mileage cars.

Avoid the 1.9 CDTI auto, it's a disaster zone - there's expensive problems with EGR valves, DPF systems, swirl valves, radiators, water pumps shredding cambelts etc etc... The 6 speed auto gearbox on the CDTI is not as tough as the old 4 speed unit you get on the 2.2 petrol either.

Also avoid the 1.8 petrol, as that came with a poor automated manual gearbox. Basically, it's a manual box with electric window motors to replace the action of the clutch pedal. A few people like them, most hate them.

At that price range, you may have trouble with the rear door wiring on any Zafira. The wires bend sharply and snap after a few years. It's an easy fix for any automotive electrician though.

Edited by TheOilBurner on 16/05/2011 at 16:30