What should I check on mondial sat for over a decade?

Check Timing Belt should be plural, as there are two. If it was me, I would change those before trying to start it. At least pull the belt covers just to be sure the belts are intact and still timed. You can turn the engine by hand using the 36mm socket beforehand I suppose, but pull the plugs first, and at the first sign of any interference while turning, stop. Those valves can bend much easier than you would think.

 

additionally
... change the timing belts & tensioners...
change the V-belts
change the fuel filter
change the clutch fluid
change the refrigerant and dryer

 

If it hasn’t run in a decade, it needs new ones. They degrade over time regardless of whether they are running or not.

 

Check if the plunjer in the fuel distributor moves freely...

 

Timing belts, remove plugs and drop some thin oil in the cylinders, leave overnight to soak. Turn by hand using socket on the crank bolt but be sure you turn in correct direction so you get the tension on the timing belts correct direction. Dont get that wrong. Clean fuel tanks out and check suction pipes to fuel pump so you do not draw in crap.

 

The coolant hoses always need a check. Especially the long hoses. Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login


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Entire fuel system.

 

After 10 years a main issue will be fuel potentially gumming up the fuel injection distributor.

When you drain the gas, you will see if things are gunky or not. If the gas comes out clear and clean, things might be ok.

Sometimes cars in dry storage this long can surprise and be in way better shape for the storage than one might expect. Let's be optimistic.

All fluids, belt/bearing change would be necessary. You might be ok with the belts for short time at low rpm to see if you can get the car started. But in these interference clearance engines, if the belt fails (probably because a bearing is seized, then the belt breaks), the pistons hit the valves. No one can responsibly tell you to take that risk, but like everything, and especially with old cars, sometimes you take some risks and hope for the best.

 

Sold mine years ago so dont recall which way

 

The old joke is you know it's empty if it stops leaking!

 

or - as long as it leaks it's not empty!

 

See my post about servicing the fuse box, and every electrical connection you can find

 

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All new modern Bosch relays fuses, clean it spray it with deoxit check for burnt circuits on the Debbie connector and I think it's a j connector on the left side I've said it all before but usually that's what can be wrong with our car is this all tracing the fuse box

 

W connection