any thoughts? 1994 w202 C220 twenty second cranking time - PeachParts Mercedes-Benz Forum

whunter · #1 01-31-2007, 04:00 PM

Any thoughts?

1994 w202 C220

Twenty second cranking time, any time it sets more than one hour or more.

No fault codes...

Thank you.

Mike Freeman · #2 01-31-2007, 04:30 PM

Remove the vacuum line from the fuel pressure regulator and watch for fuel from the nipple. It shouldn't leak any fuel.
Mike

whunter · #3 01-31-2007, 05:04 PM

starts every time, just extended cranking, after setting one hour or longer.

manny · #4 01-31-2007, 05:52 PM

I would check fuelrail pressure.
See if it drops, due to a possible dripping injector.

ILUVMILS · #5 01-31-2007, 06:00 PM

Quote:

Originally Posted by manny

I would check fuelrail pressure.

Ditto.

Ferdman · #6 02-01-2007, 06:02 AM

whunter, how many miles on the 1994 C220? When were the spark plugs replaced last? What's the condition of the ignition wires? I suspect the fuel pressure would build-up in a few seconds. When was the fuel filter replaced last?

whunter · #7 02-01-2007, 11:42 AM

Hi Roy,

Thanks for the info, I actually did this over the past weekend and did find fuel leaking into the vacuum tube. I am going to change the Fuel Pressure Reg on Saturday and see how it goes.

Parts replaced so far are:

Engine wire harness

Two sending units for with relation to coolant temp. (not the one for temp gauge)

Air temp sensor

I plan to change:

Fuel Pressure Reg and than Fuel filter, fuel pump, two check valves, throttle actuator

Since I am coming to the US next week, I want to buy a reasonable price OBD code machine.
Don’t know what one I need for this car but hope to find something that read fault codes to help make trouble shooting easier at home.
Currently I take my car to a shop and he charges Eur50 to scan for codes.

I appreciate your follow up.
I wll keep you posted as soon as I complete my task over the weekend.

:EDIT:

Current Mileage: 155, 500

At 148, 000 miles:
Spark plugs changed
Wire changed
Fuel filter

At 135,000 miles:
Mass Air Flow meter replaced

Regards,
Pran

manny · #8 02-01-2007, 04:04 PM

whunter

This is the scantool I bought a couple of years ago.
http://www.troublecodes.net/articles/equus/Equuis_OBD_II_code_reader.shtml
Works great on any OBD II vehicle.
Should cost about $ 125.00 USD.

whunter · #9 02-01-2007, 04:09 PM

Item Number: OBD2QS
Main Category: TOOL
Sub Category:
Description: OBDII Reader
Manufacturer: BAUM

Item Number: 9000059K
Main Category: MERCEDES BENZ
Sub Category:
Description: DASH SERVICE KIT, INCLUDES DASH HOOK SET RADIO KEYS IGNITION REMOVAL PINS
Manufacturer: BAU

HARBOR FREIGHT TOOLS
BRAKE BLEEDER & VACUUM PUMP KIT
ITEM 92474-0VGA

manny · #10 02-01-2007, 04:18 PM

Wow, I'd like to see a picture of it & a detailed description of it's capabilities.

msethk · #11 02-01-2007, 04:32 PM

Quote:

Originally Posted by manny

whunter

This is the scantool I bought a couple of years ago.
http://www.troublecodes.net/articles/equus/Equuis_OBD_II_code_reader.shtml
Works great on any OBD II vehicle.
Should cost about $ 125.00 USD.

manny, is this the same one you would recommend for 94 c280's like in this post? I have a 1994 and have been told it may or may not work on that car...would be good on mercedes benz up to the current moderls? I see thes on ebay at A much lower price...

manny · #12 02-01-2007, 04:48 PM

My tool is for OBD II vehicles.
I believe your model year is still OBD I.
That would mean another method of retrieving fault codes.

msethk · #13 02-01-2007, 10:12 PM

i am really confused, how do I determine OBD I or OBD II

Arthur Dalton · #14 02-01-2007, 10:21 PM

Quote:

Originally Posted by msethk

i am really confused, how do I determine OBD I or OBD II

1994/C280- Chassis 202.028 is OBD2..

Pran Patel · #15 02-03-2007, 12:37 PM

I have changed my Fuel Pressure regulator and my long duration of cranking problem has been resolve. Thanks a million to whunter for guiding me through this challenge.

I have also looked under my hood of the c220 1994 and on the emission label is state "OBD II certified" and under the drivers side there is a 16 pin connector. So now it's time for me to buy a good OBD II Scanner.