Whilst checking fluids today I noticed of what I presume is oil in my coolant expansion tank.
there's a very thin layer of gunk floating on top of the coolant, and light brownish gunk on the cap and around the neck where the cap screws on. the gunk almost looks like mould. I'm also getting a bit of white smoke and water droplets out the exhaust. I take it this sounds like the dreaded head gasket?

'91 300E, M103

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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys