275K miles, haven't changed the (Bosch Copper) plugs in a while, could that be it? It's like the engine encounters a strong resistance (for about 0.5 seconds) while the starter is turning it, but it does start on the same turn of the key . Not every time, warm/cold doesn't matter, but getting more frequent . (new, not rebuilt) Bosch starter in 2008. Idle hunts a bit when cold, not much over 1500 RPM . No reverse, doubt that matters but you never know.

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RIP "Betsy" (Oo=*=oO)
'96 E 3 2 0 (W 2 1 0) M 1 0 4 (Totalled)
Spaces in sig so as not to screw up the SEARCH; every time someone searches for that MB they don't want my sig!

2004 Audi A8L
'98 VW Passat 1.8T 5M
'87 Alfa Romeo Milano 2.5L 5M
'67 Impala convertible, 327cid