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benzonline
03-09-2006, 08:54 AM
My pristine 202 C230K is doing good but I found something strange since I had it. When I turn it on after sitting over night, if I dont let it idle and wait for all the noises and pumps to go fully off...it will surge and not want to coast off smoothly when attempting to drive off.

It will act as its choking or starved for fuel but wont stall out or anything.

It will not do this if I let it warm up for 5 mins or until that last pump making noise goes off.

What is this?
SLAMMED_C
03-09-2006, 11:21 AM
my car does that too..
the pump noise is the cold air injection pump (your supercharger being activated to pump air into the engine).
benzonline
03-09-2006, 12:13 PM
Best to just wait until its done pumping I guess...which is about 3-4 minutes.
audiophile
03-09-2006, 01:22 PM
Originally posted by SLAMMED_C
my car does that too..
the pump noise is the cold air injection pump (your supercharger being activated to pump air into the engine).
it's not the supercharger but, what you said the air injection.
jnenad16
03-09-2006, 09:37 PM
Originally posted by audiophile
it's not the supercharger but, what you said the air injection.
the supercharger also acts as an air pump.

nenad
audiophile
03-09-2006, 09:53 PM
the supecharger also acts as an air pump.
i'm such a dumbass, nevermind:rolleyes:
i kinda retract my previous statement.:p
benzonline
03-10-2006, 04:01 AM
LOL....

Today was warm so I waited about 1-2mins and drove off (in the morning) while that pump was still working.

Not as sluggish and didnt "choke".