Hi Everyone!
I am new to the forum and i need help with my 1999 ml320. The probem is that at a standstill with my foot on the brakes and with the transmission engaged, I hear a distinct intermitent click noise that comes from the engine compartment. when ever I hear this clicking noise it causes the engine to shudder causing the whole truck to shake. I have changed the plugs (not the wires though) , cleaned the egr tube and also replaced the MAF. Still no sign of improvement. I have also recently started experiencing rough start up that is the engine starts and attempts to stall immediately then revs up high before it settles down. I will appreciate all help on this issue cause I reccently lost job and cant afford to go to the dealership. Thanks

Does this vehicle have a purge/evac valve?

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1994 C280, dark green metallic
105k miles

1991 190E 2.6, Black
191,500 miles
(sold to another forum member)

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Hi,
I am not sure what that is. could you please enlighten me on that?
Thanks