Faults:

I bought the car from a friend, didn't check it properly, and found oil in the water (but no water in the oil).

Panicked, spoke to dealer, who said it was a head and quoted me £800 to a grand to fix it (!!!).

Local garage said that they had never seen an Omega with a blown head, cleaned it out, and put in a bottle of rad-weld. They told me to see how it went. To date no more problems.

Another dealer told me later that he has seen one or two with porous oil-coolers (water cooled in these cars), so that may well be it. - I hope.

There is a clunk from the front suspension and sometimes a peculiar whine that stops when I dip the clutch. Haven't got around to investigating either.

Lots of bulbs need replaced.

There are a couple of small spots of rust - not what I expect on a modern car.

General Comments:

The car is fast and comfortable. Very good on motorways. There is a bit of a wander at high speeds though - may be something to do with clunk above!

Fuel consumption is mid to high twenties on average, not great, but OK.

Headlights are rubbish, particularly considering the car is quite rapid.

There are lots of buttons to push - I particularly like the "one touch" sunroof control.

Interior is quite nice - typical German look - at least as good as a BM or Merc.

Faults:

Throttle sticking at high revs at idle. Rectified by replacing the adjustor throttle - apparently this was caused by doing so many motorway miles at the same speed. Cost £100.

This is the only cost other than servicing, tyres, exhaust, brake pads and discs. Fuel cost has been reasonable for the size of the car.

This reliability is no doubt largely influenced by the regular main dealer servicing, strictly in accordance with manufacturer guidelines.

General Comments:

It has not failed me in 100,000 miles over the last 4 years.

Very low cost of ownership per mile.

Coming down from new company cars from BMW and Audi, I have been consistently surprised by how good the handling is.

Excellent build quality.

Faults:

Self levelling suspension jacked up to fullest extent and stayed there. This was caused by a burnt out wire...

Misfire at 3500+RPM - garage unable to get a fault diagnosis...

General Comments:

What a shame - lovely car, very poor after sales service from North Hertfordshire UK independent garage.

On the plus side - when it's running right there's loads of 'ooomph!', but still happy to run around town with the kids in the back. Cavanous luggage space. And did I mention loads of 'ooomph?'.

I have a feeling (call it female intuition) that its problems probably are down to a well repaired shunt at some stage...