2012 Mercedes C250 coupe 1.8L turbo - PCV valve location
08-27-2022, 07:27 AM
#1
Member
Thread Starter
2012 Mercedes C250 coupe 1.8L turbo - PCV valve location
So on my wife's C250 coupe 1.8L turbo I've never replaced the PCV valve. From reading there is mixed information if it even has a PCV valve at all (maybe located under the intake manifold based on readings) or not or maybe also a breather cap (or whatever it's called). Some say it doesn't have a PCV valve. Based on rockauto.com there is one.
RockAuto
I've had the startup rattle (but perfect after starting) issue for a while and some ask 'have you ever replaced the PCV valve?'. I've read sometimes that if you don't replace the PCV valve it can cause gas to get in the oil. Also you may notice that the oil level seems high than usual (not sure how that happens)? I noticed that I'm sure the oil level has gone up since I changed it about 10,000km ago (at least it's not leaking!).. She's at 152,000kms and I've never replaced it.
So can someone confirm if the 2012 Mercedes C250 Coupe 1.8L turbo has a PCV valve and, if so, where it's located? I couldn't find a single picture on google images.
Richard
RockAuto
I've had the startup rattle (but perfect after starting) issue for a while and some ask 'have you ever replaced the PCV valve?'. I've read sometimes that if you don't replace the PCV valve it can cause gas to get in the oil. Also you may notice that the oil level seems high than usual (not sure how that happens)? I noticed that I'm sure the oil level has gone up since I changed it about 10,000km ago (at least it's not leaking!).. She's at 152,000kms and I've never replaced it.
So can someone confirm if the 2012 Mercedes C250 Coupe 1.8L turbo has a PCV valve and, if so, where it's located? I couldn't find a single picture on google images.
Richard
Last edited by Richard Koop; 08-27-2022 at 07:29 AM.
08-27-2022, 11:36 AM
#2
Super Member
Your engine is equipped with idle pcv and high load pcv systems. Now stop believing crap that you read online. The rattle noise you have is caused by defective camshaft adjusters. Specially the intake one. There is a repair kit that comes with both the intake and exhaust camshaft adjusters along with a new chain. At least in the USA they offer the kit and they had extended warranty for 10 years/125k miles
The following 2 users liked this post by MBENZTECH:
CaliBenzDriver (08-28-2022),
ezshift5 (08-28-2022)
08-28-2022, 11:52 AM
#3
Super Member
Your engine is equipped with idle pcv and high load pcv systems. Now stop believing crap that you read online. The rattle noise you have is caused by defective camshaft adjusters. Specially the intake one. There is a repair kit that comes with both the intake and exhaust camshaft adjusters along with a new chain. At least in the USA they offer the kit and they had extended warranty for 10 years/125k miles
Thank you for your time and expertise MBENZTECH.............
ez
08-28-2022, 12:35 PM
#4
Member
My 2012 C250 coupe odometer reads 41k. The camshaft adjuster 10- years extended warranty soon will expire. Would you be able to comment on (1) the average odometer reading when camshaft adjusters begin to be a problem and (2) estimated repair kit install cost (I live in northern California).
Thank you for your time and expertise MBENZTECH.............
Thank you for your time and expertise MBENZTECH.............
08-30-2022, 08:52 AM
#6
Member
Thread Starter
Yep. Already replaced the intake and exhaust camshaft adjusters. Made things much better. Haven't done the chain yet. A little intimidating but will eventually do it.
Richard
Richard
08-30-2022, 04:42 PM
#7
Member
Thread Starter
Still haven't figured this out...
Where are the PCV valves located on the 2012 C250 1.8L turbo engine? Never been replaced and my wife's at like 140,000kms.
Richard
Where are the PCV valves located on the 2012 C250 1.8L turbo engine? Never been replaced and my wife's at like 140,000kms.
Richard
