Another good read in the FAQ's is the information concerning low coolant sensors. These are extremely easy to fit into the 240 series and not difficult in the 700 cars. Temperature gauges will (most often) tell you when an overheated condition exists but really how often do you check your gauges? Even a slow leak can turn into a cooked head. A float switch in the reservoir can alert you prior to overheating.

It is also a good time to consider removing the temperature compenstating board in your later 240 cars. A consistently working guage is nice to have.

Randy

Steve,

Excellent points, I always tell my friends (car doesn't matter), it doesn't hurt to look under the hood once in awhile, you just might save yourself a tow and a big bill.

The A/C on my 965 stopped working and needed a few O-Rings and a charge. I changed the radiator last year and the hoses two years ago. Time for a new heater valve.
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Warren Bain - '99 V70GLT G-Valve > 70K mi, '96 965 >110Kmi Wifemobile near Manassas Va.. Check the 700/900 FAQ via the 'features' pull down menu.

I would like to make an addition to this list. I recently changed both heater valves & hoses on my 940 & 740 turbos 1991s. The coolant return pipe on both leaked around the welded support bracket on the pipe. This is close to the turbo so whether heat or a road salt collection area I don't know. Both pipes were less than paper thin at this point but still had paint most others. Just the bit of movement caused by changing the hoses caused them to leak. The pipe is best seen from under the left side near the oil filter.

Steve is giving good advice, don't be cheap change the heater valves etc. Mine snapped in half when I removed the hose clamps. A 5/8" hole dumps a lot of coolant in a hurry at 20PSI.

Thanks for that reminder.

The other night my car puked a bunch of coolant while idling in the boatyard parking lot. Cause? New pressure cap not tightened enough. I was flustered because a lot of the cooling system is brand new. My car is better maintained than most, but I still should've checked it over more carefully.

Bottom line, it can happen to anyone.
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Chris Herbst, near Chicago.