It's probably just the lash adjusters bleeding down.

This occurs in cars that sit because spring pressure is pushing on them (some more than others depending where the valves are!) .Without the engine running, there is no oil pressure to counteract the spring pressure. Over time the oil gets slowly pushed out of the adjuster, until you start the engine again.

If you are worried about causing too much wear (I wouldn't), Disable the ignition and just turn the engine over with the starter for a few seconds so that you can move some oil around, then re-enable the ignition and start the car.


If that doesn't work..............try putting some Mercedes badges on it!