Canister Purge Valve?

[Les-10]

Took my 300 C in today for my 1-3K inspection & was told that the canister purge valve was likely the cause of my cold start-up knocking. Anybody know of this part, it's location? This knock is not of the noisy valve train variety but sounds like a bottom end issue.

[mikestyle]

yaaaa, about that...........................

[Pit-Pony]

Scheduled inspection at 3K??

Purge valve is up front on right side of engine.

[Les-10]

Originally Posted by Pit-Pony

Scheduled inspection at 3K??

Purge valve is up front on right side of engine.

Yes, First Visit as specified on pages 15, 54 & 60 of 2008 C-Class Maintenance Booklet

[Pit-Pony]

Things must be different with US cars but my 09 C300 4Matic dosn't have a scheduled inspection till 1 year ot 15,000 km.

What gives eh?

[jstaneff]

Originally Posted by Pit-Pony

Things must be different with US cars but my 09 C300 4Matic dosn't have a scheduled inspection till 1 year ot 15,000 km.

What gives eh?

J.D. Powers is what gives .....

[Les-10]

Originally Posted by Pit-Pony

Things must be different with US cars but my 09 C300 4Matic dosn't have a scheduled inspection till 1 year ot 15,000 km.

What gives eh?

Kinda coincidental: I've got a 2006 Monterey Red C6 coupe w/cashmere interior

[Pit-Pony]

Seriously, my manual specifies first service at 1y/15,000 km, except for C63 @ 3000 for diff oil change.

And, re the C6, have you considered going to Spring Mountain Motor Sport Ranch? best time you'll ever have and still be all dressed up

[Diesel Benz]

Originally Posted by Pit-Pony

Seriously, my manual specifies first service at 1y/15,000 km, except for C63 @ 3000 for diff oil change.

In Europe it would be still different, I had my first service for the W221 at 30500 km and almost two years.

[RLE]

Originally Posted by Les-10

Took my 300 C in today for my 1-3K inspection & was told that the canister purge valve was likely the cause of my cold start-up knocking. Anybody know of this part, it's location? This knock is not of the noisy valve train variety but sounds like a bottom end issue.

This caught my eye.

Is this knock just 1-3 times on startup? My C300 started doing this and my '01 C320 M112 V-6 did it for the 7.5 years I drove it. Never blew up but after while you begin to wonder.........

[Les-10]

Originally Posted by RLE

This caught my eye.

Is this knock just 1-3 times on startup? My C300 started doing this and my '01 C320 M112 V-6 did it for the 7.5 years I drove it. Never blew up but after while you begin to wonder.........

Exactly, but only at cold start-up (regardless of ambient temperature) or after it sits for maybe 1-1/2 to 2 hours. It never repeats immediately after the initial start-up (until it cools down again of course). Mine has done it consistently from the first morning after purchase on.

[RLE]

Originally Posted by Les-10

Exactly, but only at cold start-up (regardless of ambient temperature) or after it sits for maybe 1-1/2 to 2 hours. It never repeats immediately after the initial start-up (until it cools down again of course). Mine has done it consistently from the first morning after purchase on.

Are they going to replace the purge valve or??