The thermo switch on my 1987 190 died recently. Only became obvious when
stuck in traffic. The temperature went high (close to but not into the
red). Since then no obvious faults (new switch since fitted), with the
car continuing to burn no oil whatsoever and similarly no loss of
coolant. The car is well maintained and regularly serviced (using good
Just like to check on whether the consensus is I've got away with it this
time and that I don't have to worry about a warped head etc.