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A couple days ago in she-who-must-be-obeyed '06 C230, CEL came on. DAS reported code "1089 - Purge control system has a slight leak (minor leak) (P0456)". Cleared the code but it returned a day or two later, so it's real. Haven't dove into this one yet; hoping to get a few leads here before I get started on it this weekend. Any input appreciated and thanks in advance.
Cheers,
Jeff
You need a smoke tester to accurately diagnose this. Could be anything from gas cap leak, charcoal cannister, purge valve, filler neck, tank covers, etc etc.
Hey I was having a similar code pop up on my 2016 w205 c300 4matic .... P04F00
not sure If it's related. Was wondering if your diagnosis would help in my case?
Tried erasing the code. Keeps comming back.
Need to know if it's the purge control valve or the Charcoal canister that need replacement? Or both?
11-05-2015, 11:59 PM
