Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.
Car Problem Reports
Mercedes-Benz S320 Repair Leaks From Head Gasket/Timing Cover Gasket Before Oil and Coolant Intermix
Mercedes-Benz S320 Problem
Average Mileage: 127,000 mi (105,000 mi - 149,000 mi)
head gasket leaked and needed to be replaced along with spark plugs, coolant, oil
Visitor, 1998 Mercedes-Benz S320, 149,000 mi
head gasket broke requiring replacement coolant and oil mixed necesitating radiator replacement also. about a $3300.00 job