M103 1988 190e 2.6.
113,000 miles Required head gasket, valve seals, valve guides and timing cover gasket.
Previous owner was a contractor that worked overseas for long stretches of up to six months and the car was left idle while he was away. mechanic told me that this would have contributed to the fact the the above work was required at such a low mileage.
Car leaked so much oil via the valves that clouds of blue smoke would emit from the exhaust and the spark plugs would fowl within a thousand miles. After repair used less than quart of oil per 1000miles
Cost of repair US$ 1050

M103 1990 300e 2.6.
90,000 miles. No repairs to top end. No leaks and car uses less than a quart of oil per 1000 miles.
However when I bought the car at 85,000 miles, changed plugs, leads, distributor cap and rotor, oil and filter, fuel filters and air filter, serpentine belt and changed coolant fluid. (to ensure ongoing trouble free motoring). (All easily done by myself)