P04F00, P24D62A, P15220, P049600 and P15230
Thread Starter
Super Member
Joined: Apr 2013
Posts: 909
Likes: 64
2007 cls550
P04F00, P24D62A, P15220, P049600 and P15230
Posting here too because i think this is applicable to some C43's
2016 CLS400 V6 twin turbo
If you receive any of the codes such as P04F00, P24D62A, P15220, P049600 and P15230. Wide open throttle regeneration of the charcoal canister has malfunction, Check valve of the evaporative emission control system at full load is jammed open, Purge flow too high, etc.
DO NOT replace the Purge Valve with the original part number 001-470-08-93. Replace it with 001-476-44-32 or Bosch #0280142561.
I had a few of these codes and removed the original purge valve. It was open both ways blowing through it. I looked up the part number and found an original one in packaging on ebay so i ordered. Weeks later I was still chasing codes and replacing other pcv related parts when i came across a post that the original part has a problem. Skeptical but I ordered 001-476-44-32 and boom. Problem fixed, no check engine light for 4 days running.
2016 CLS400 V6 twin turbo
If you receive any of the codes such as P04F00, P24D62A, P15220, P049600 and P15230. Wide open throttle regeneration of the charcoal canister has malfunction, Check valve of the evaporative emission control system at full load is jammed open, Purge flow too high, etc.
DO NOT replace the Purge Valve with the original part number 001-470-08-93. Replace it with 001-476-44-32 or Bosch #0280142561.
I had a few of these codes and removed the original purge valve. It was open both ways blowing through it. I looked up the part number and found an original one in packaging on ebay so i ordered. Weeks later I was still chasing codes and replacing other pcv related parts when i came across a post that the original part has a problem. Skeptical but I ordered 001-476-44-32 and boom. Problem fixed, no check engine light for 4 days running.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,770
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Thank you for sharing this tip. 
At what mileage does this valve goes bad??
MB weak purge valve design has a better replacement part.
I am sure you're aware of the vacuum pump tiny check valve that goes missing into the engine, right? There's an unlisted replacement diaphragm available from Chinese suppliers.
At what mileage does this valve goes bad??
MB weak purge valve design has a better replacement part.
I am sure you're aware of the vacuum pump tiny check valve that goes missing into the engine, right? There's an unlisted replacement diaphragm available from Chinese suppliers.
Thread Starter
Super Member
Joined: Apr 2013
Posts: 909
Likes: 64
2007 cls550
Mine went bad at 42k miles. Easy to replace and $70 at dealer. Just don’t break the rubber 90 degree hoses getting it off. They are like $10 each.
tell me more about this part that can get sucked into engine.
tell me more about this part that can get sucked into engine.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,770
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
M276/8 vacuum pump check-valve !!!
it's the check-valve in charge of the vacuum that works your turbo westagate and intake plenum vacuum actuators.
It gets wasted by high crankcase blow-by pressure... typical of turbo boost pressures.
A little $5 rubber beats a new $300 pump
Conveniently located at Bank2 intake camshaft near firewall. Removed with 1x T-screw.
Last edited by CaliBenzDriver; Dec 20, 2024 at 07:24 PM.
Thread Starter
Super Member
Joined: Apr 2013
Posts: 909
Likes: 64
2007 cls550
M276/8 vacuum pump check-valve !!!
it's the check-valve in charge of the vacuum that works your turbo westagate and intake plenum vacuum actuators.
It gets wasted by high crankcase blow-by pressure... typical of turbo boost pressures.
A little $5 rubber beats a new $300 pump
Conveniently located at Bank2 intake camshaft near firewall. Removed with 1x T-screw.
