I've heard some shops have a device for 'sniffing' coolant
in oil.

Get it checked, by two or three if needed!

Don't let panic reach into your wallet, but take cae not to
make it worse on the car.

__________________
1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
********************
1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD