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[mrgreen]

Thank you very much for the replies so far, very helpful, I will know much more when I fetch the car on Monday and get it back to my garage, 3hr drive from Lisbon, wish me luck, but plan to change the oil and all the filters as suggested, I will also look at the brakes and see what needs doing there if anything, this car has been used as a daily driver, so I don't expect too much horror!

I have owned Vauxhalls in the past and always found them to be very reliable and trouible free.

I have in the past owned a Mitsubishi delica 2.8 tdi, my first ever diesel, I had a bit of experience cleaning the injectors, replacing nozzles and re-building the pump on that, not an experience I would gladly repeat I must say.

Also encountered the cam chain and tensioner on that engine, and assume from RobG's brief post that this engine has a chain and tensioner. 
So thinking out loud before even checking the car I should maybe be prepared for the possibility of tackling fitting a new tensioner. 
Bringing me neatly to my next questions,

is this fairly easy? and is it possible to get hold of a workshop service guide for this car fairly easily?
I don't mean a haynes manual, but a proper garage manual used by vauxhall,
I used to have one for the the deli and it was worth it's weight in gold.
Here is a link for the old girl if you want to take a squiz, please don't whince at the price, its normal here 

http://www.custojusto.pt/Lisboa/Ligeiros-Passageiros/Opel+Omega+2+5+TD+caravana-5788407.htm?xtcr=1&last=1

http://www.willhaben.at/iad/gebrauchtwagen/auto/opel-omega-caravan-executive-2-5-td-45231446/?adId=45231446
My goodness, and I thought the prices in Austria were bad 

[x25dt]

Replacing the chain, tensioners and guides are fairly easy. I bought my parts from BMW as they were much cheaper than from Vauxhall. You'll need a locking/timing kit to do the job properly though

What millage interval this job should be done?

[Shackeng]

I've done about the same mileage in mine, and no excess noise indicating that they require doing. If it has been looked after well, it should not need doing. You will know by  the noise when it does.

[trainschi]

(( Thanks Omegatoy, will get to the ecu soon, cheers, PS Is that your quad, I have a Shineray))
Not sure on the engine mounts, Ditto Shackeng, don't think its old enough, we'll soon see!
Photobucketed some pics for your enjoyment
Hello again all, hope you are all well, thanks a million for all the feedback, muito appreciated.

As promised here is an update on the progress.

I heard back from the garage man from yesterday and he called to tell me the parts alone would be 860 euros, I did have to ask him several times if there was some mistake, but no sure enough, to replace the timing chain and tensioner and all the belts, 860 euros!

They also said it would probably be a a day or more to do the job and when did I want to bring it in.

After I picked myself up off the floor I politely declined their offer of repairing my car.

I also went to a parts place nearby me and got myself an oil filter, 6.60, diesel filter 8.00, gear box oil 11.20, brake fluid 5.50 and engine oil 10 litres 32.50.

I didn't do too bad since they didn't speak any English, and rightly so, I muddled through with my sketchy Portuguese.

I need to replace all the disks and pads, badly grooved and worn deep to about 2mm!

Guess how much, 78 Euros each!!!, I didn’t bother asking for price for the pads, cos he was searching and phoning round for half an hour and from what I understand, they are like hens teethe to get hold of in Pt.  So if anyone is willing to get me a set and matching pads and ship em over I'd be more than grateful, although, shipping could be costly as they are weighty.

I am having some tyres fitted on Friday, the rears are bald to the point of showing fibres through, 300 Euros on the car for cheapies, the tyre man looked like someone from the mafia, and his tyre shop has to be seen to be believed, will post a photo if I can. Like going back in time, not a pc in sight.

I have posted some pics of various things, they will give you a sharp intake of breath mechanic style and maybe a giggle.

One of the rad, with half Pt insect population in it, the air and oil filters, look like they've been on the car since new.  What looks to me like a leaking oil pump, will know more once I clean round and get new oil in any advice welcomed.  The most bizarre oil sump plug I have seen in working on cars for 30 years!  Advice on how it goes back much appreciated, tempted to just use a normal bolt, but know this could be very wrong for engine? 
See the nice welding where it must have been smashed off during a grounding incident, yummy lol
Also is a pic of a pump under the coolant reservoir, is this the plastic pump people have warned me about or am I being real stupid as I think this is usually driven directly from the engine.
Also when I went out in it today I topped up the coolant bottle with clear water and it was all gone by the time I got home, and on dismantling today and letting the coolant out it was dark blue and the bit left in the reservoir was clear possibly indicating no free flowing coolant system, and the plastic impeller blocked coolant system problem manifesting itself.  Any advice on clearing the system and getting the bits out much appreciated.  I have got it all to pieces at the moment, just drained oil, engine and gearbox, coolant is almost out, just about to change diesel filter, thats where Im at.  As always, any feedback is much appreciated and welcomed in these difficult times.
All the best.

http://s1262.photobucket.com/albums/ii613/commerce103746/Opel%20Omega/

[trainschi]

I found vibration was down to engine mounts!! sounds like yours is the same with the heat etc in portugal, they dont normally use coolant, temp going up is normal if oil and filters havent been changed for a while,it looks a lot but is usually only 5 degree,s or so, plastic impellors can lose some of their fins so would be worthwhiloe checking and radiators are known to sludge up!! if its the same as here in spain, then there are many places who will do a chemical clean on the rad very cheaply to sort that!!
chops, you need the ten digit number off the ecu, also open the ecu and check to see if you have a socketed carrier in there or whether you need to solder one in, when you have the  number pm it to TB he will see Terry and sort it i would think,
I have persnally done over 90k on 3 different cars all with the chips in and never had a problem except better fuel consumption and an easier drive!!!

Hello,
I have the number from the ECU, is it the number under where it says Bosch?

0 281 001 427?
or
2247367 203?

Also who is TB, forgive my ignorance, many thanks.

[Varche]

TB = The Boy user Id