My W124 300E takes too many seconds to start from cold.
-- like 10-15 seconds on one start.

I can't get to the bottom of it.

I have replaced the sparks, ht leads, rotar arm and dist cap.
Also, I have change the oil.

When it is cold, I have checked for sparks at the plug end, and that's fine - sparking straight away.

I have tried the pre-start fuel trick several times (turning the key to '2' a few times before starting the car) - this makes no difference.

So I am looking for inspiration?? Can you help.
I thought next was perhaps vacumn hoses..? - how can I check these.

Any other ideas gratefully accepted. ..

__________________
I'd rather a full bottle in front of me, than a full frontal labotomy.