Reiter

I am trying to run seafoam in the car(01 clk320) and I'm wondering where the vacuum hose is located to perform this. Thanx

Benz Over

i will be doing this tomorrow, if not, in 2 days tops. i will post pics or a video on how to do it.

Benz Over

vacuum line is on driver side, back of engine compartment. its tough to pull out so be careful and use pliers. the hose is very stiff, if you cant get it upright pour the seafoam in a bowl and let the vacuum suck it in, remember do this slowly or you will kill the engine. use about 3/4 cup of seafoam, half in gas tank, turn off car and replug the vacuum line (make sure its back in tightly), let it sit for a half hour then run the car. rev continuously until all smoke is gone, drive around (hard) to make sure all the smoke is gone. there you have it. mine runs like new, after 200k miles it still runs like new. sometimes i wounder if its an AMG

jbenz2001

Niiiiiiiice walnut82!!! I've been wondering how to do this.will bedoing this asap tom.

Benz Over

No problem. Hope it helps. Let me know how it goes

dlbehrns

Did you use the whole bottle?

Benz Over

No I used half in the gas tank then 3/4 cup in vacuum line. I still have about 1/4 of the bottle left

jbenz2001

So I did the seafoam thing.it seems like the car drives smoother.but now my check engine light came on for my egr valve.

dlbehrns

Do you have a OBDII scanner? If not go to autozone and see what codes show up.

jbenz2001

Yeah I do.code p0400,p0130,and p0135 showed up

Benz Over

the seafoam does not go to the EGR Valve. i literally just got done with cleaning my EGR valve. the egr vavle (Exhaust Gas Recirculation). EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. In a gasoline engine, this inert exhaust displaces the amount of combustible matter in the cylinder. its gonna be clogged up so you need to either take it to a mechanic or do it yourself and save about $450. heres a page for the diy, i will also add some pics to it.

https://mbworld.org/forums/clk-class...-cleaning.html

slobodan

Here are your codes...

P0130 O2 Sensor Circuit Malfunction (Bank 1 Sensor 1)

P0135 O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P0400 Exhaust Gas Recirculation Flow Malfunction

I would disconnect your battery and reconnect it to see if it clears the codes.

jbenz2001

Yeah mine also popped up once punched it on the highway.1st thing Im gonna do is clean the egr valve.
would you guys recommend me buy the hoses and gaskets first before attempting?the dealer is about 30 min away from and I would hate to attempt it on a weekend and need the piece.

Benz Over

thats by chance, lucky for me the gasket and the hoses were clean and i did not have to replace them. CAUTION!!!! be careful when removing the hoses because the inlets are VERY!! brittle. i broke mine but luckly i had epoxy glue and fixed it.

jbenz2001

Ok,thanks