I got an 1993 940 turbo wagon,with 128000 miles on it.I have no maint records for this car.So all the fuilds have been replaced/tune up/new muffler.I want to have these done to it.EGR valve cleaning,beather box replacement/thotte body cleaning/valve ajustment.Replace(relays)fuel pump/radio suppression/rpm sensor.I plan on keep this car tell the wheels fall off.I dont want waste my money,but I dont have any maint records-(Doing all this a good Idea?

change the fuel filter too.

Hello, It is up to you and your budget. I would at least keep a spare fuel pump relay. As for the radio supression relay it is the same as the electric fan relay, so a spare is not needed. The breather box I wouldn't change unless the nipple is clogged with a thick sludge when you remove the breather hose coupling with the vacuum fitting. I woould clean the throttle body and I would change the intake manifold gasket. I wouldn't bother with valve adjustment, but would change the brake fluid and powersteering fluid. I would also clean all the grounds in the engine compartment and lube all the door hinges and hood hinges. I would also change the t-belt and all the seals, water pump if it looks original. I would change the radiator unless it looks like it has been done within the last 3 years, I would change the heater control valve, because it is hard to tell when they ever have been changed. The rest is simple, just drive it. I have my 940 turbo wagon listed in the classifieds.