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Well, Check Engine light has gone.. Guess 2018 GLC300 has self healing power..
I will take it to dealer anyway,, as my wife also freak out on those orange color light,,
I got lucky and somehow found a 2015 C300 with only 6,000 miles on it back in 2020. It’s now only at 20,553.. still basically “new” despite being years old (so no warranty). I got the dreaded P052E code about two days ago. Cleared the code, light came back on, checked and double checked to be sure because I’m really upset something so serious (and pricey) happened so early on in mileage.
Any (more) advice would be appreciated. I’ve read through the entire thread but I definitely wouldn’t be able to do it myself. And I’m getting quotes from dealerships near me for up to $3500. I’m in northern Ohio if anyone knows mechanics.
also- has anyone tried to start a class action?!? It seems common enough we could. One Mercedes’ dealership mechanic I talked to said he just started there three months ago, and has already seen 6 C300s that are 2015-17 for the same problem. This is just insane:
I got lucky and somehow found a 2015 C300 with only 6,000 miles on it back in 2020. It’s now only at 20,553.. still basically “new” despite being years old (so no warranty). I got the dreaded P052E code about two days ago. Cleared the code, light came back on, checked and double checked to be sure because I’m really upset something so serious (and pricey) happened so early on in mileage.
Any (more) advice would be appreciated. I’ve read through the entire thread but I definitely wouldn’t be able to do it myself. And I’m getting quotes from dealerships near me for up to $3500. I’m in northern Ohio if anyone knows mechanics.
also- has anyone tried to start a class action?!? It seems common enough we could. One Mercedes’ dealership mechanic I talked to said he just started there three months ago, and has already seen 6 C300s that are 2015-17 for the same problem. This is just insane:
I didn't buy the car from them, but I bought a different one about 15 years ago there. My parents buy a lot of cars from them, but I doubt they considered that in the decision to fix it for me for free.
I'm trying to figure out if I should sell the car at some point in the next twelve months. If it's $2,000 every other year, cost of ownership goes up $1,000 per year. Difficult to sell it if the check engine light is on, so if I'm going to get rid of it I should do it in the next year or so.
Hello Mercedes 2016 GLC300 owners...you would think Mercedes would do something about this issue because of it happening in so many models consistently!!!
Quote we received at Mercedes dealer in Saskatchewan, CANADA is $950 for the part and $750 for labour.
Wish I was a lawyer and CLASS ACTION them on this!!!
Faulty engineering that has caused us to need to repair our third one (original, warranty replacement and now out of our own pocket...SAME ISSUE!!!)
Sorry needed, to "CRANKCASE VENT"!!!
And for fun, -40C and happens when my wife is driving and she thinks blown engine because of the smoke coming out of the exhaust!!!
Such a great make and model of Mercedes but with an issue as prevalent as this that MERCEDES CANADA should be doing something other than dealer charging us $1,700CDN!!!
Got the same Issue on my 2018, dealer quote $1600 in Calgary
Got the same Issue on my 2018, dealer quote $1600 in Calgary
I'm thinking about selling mine before the check engine light happens again. I was planning to own it for 10 years, but this will likely add $10,000 to the cost of ownership over that timeframe. Seems like a problem every 20-24 months.
You need some experience and tools to do this. Also small ratchet, various length extensions, mirror, magnet etc..
To remove the engine mount braket, I needed to support the oil pan, then lift 1 cm after remove bolts. braket 4 bolts removed. Remove lower 2 bolts and 1 a/c bolt from under Oil seperator is removed Old & new part
You need some experience and tools to do this. Also small ratchet, various length extensions, mirror, magnet etc..
To remove the engine mount braket, I needed to support the oil pan, then lift 1 cm after remove bolts. braket 4 bolts removed. Remove lower 2 bolts and 1 a/c bolt from under Oil seperator is removed Old & new part
Purchased a 2018 GLC 300 from Carmax last weekend at 57k miles and as soon as I got on the highway, there was the CEL and came out this was the issue . They're replacing it with Part number 274090560080. I am still in return window, but I just love the car and hopefully I don't have to return it. My first Mercedes-Benz as a 40-year-old family guy and this is some next level after a 17 Honda accord that I have been driving the last 5+ years.
Looks like this part has seen some revisions;
274-090-14-**
274-090-16-** (The version mentioned in this thread to be installed back in 2020)
274-090-17-**
274-090-55-**
274-090-56-00 (another mention of this rev back in 2021)
274-090-56-00-28 274-090-56-00-80 (Current Version)
I wonder if the latest revision fixed this issue?
Thanks
Last edited by FreeWoRLD; Mar 15, 2023 at 02:21 PM.
My part for GLC must be improved 2~3 times based on the replacement part number history.
Hope it lasts longer between the code occupancy.
I was wondering if you've had the problem again so far to this date? The part rev you installed back then was probably the latest version, or one rev before the latest. If you wouldn't mind replying, I would highly appreciate the help.
They are installing 274-090-56-00-80 on mine this week and I am just trying to figure out if it is worth to keep the vehicle.
I was wondering if you've had the problem again so far to this date? The part rev you installed back then was probably the latest version, or one rev before the latest. If you wouldn't mind replying, I would highly appreciate the help.
They are installing 274-090-56-00-80 on mine this week and I am just trying to figure out if it is worth to keep the vehicle.
No code came out at all since 90,000 km more driven after i had replaced the part.
Recently I saw at c class forum that someone fixed by replacing only the valve part marked red in the picture. MB sells only the valve, cheaper ($100) and much easier (30 minutes) than the whole part by cutting and connecting with a hose clamp.
Update - I went to another dealer and they covered it as goodwill, and they also found that I need a new thermostat, also covered. This is Mercedes Benz of Springfield MA. I doubt I'll ever go to the Hartford CT dealer for anything.
So 2 years later this same issue is back. I went to the same dealer MB Springfield, and they gave me the diagnostic and repair quote $2000, no mention at all of the previous repair they already did. Weeks later I found this and thread again and realized I've had this before, and they had repaired it. So, they wanted to charge me $2000 for a bad part that they put in 2 years ago 😡.
The 2 MB cars I've had are both plagued with these issues, some random part breaks and it's incredibly hard to fix. No more Mercedes-Benz for me.
So 2 years later this same issue is back. I went to the same dealer MB Springfield, and they gave me the diagnostic and repair quote $2000, no mention at all of the previous repair they already did. Weeks later I found this and thread again and realized I've had this before, and they had repaired it. So, they wanted to charge me $2000 for a bad part that they put in 2 years ago 😡.
The 2 MB cars I've had are both plagued with these issues, some random part breaks and it's incredibly hard to fix. No more Mercedes-Benz for me.
I just found that there is a class action against benz for not covering this and other "high-cost" items under warranty. Benz is actually fighting it and not settling, even tried to dismiss the case, but was denied. https://casetext.com/case/hazdovac-v...es-benz-us-inc
I also filed a complaint with my Attorney General, a longshot but maybe he'll sue MB as well
I just found that there is a class action against benz for not covering this and other "high-cost" items under warranty. Benz is actually fighting it and not settling, even tried to dismiss the case, but was denied. https://casetext.com/case/hazdovac-v...es-benz-us-inc
I also filed a complaint with my Attorney General, a longshot but maybe he'll sue MB as well
Sorry that your failure was out of warranty. However, according to your link, the Class Action was dismissed. No evidence provided. Not guilty.
But you'll get another chance if you own just about any consumer product. The Ambulance Chasers will barrage you with "invitations" to participate in groundless actions. I get one every month or so. Last week it was for a stovetop in my RV.
Buy a Ford or Hyundai if you want more Class Action opportunities. Recall Kings.
I think it's a good idea to keep a car covered with an extended protection plan and not hope for out of warranty coverage. I'm uncomfortable owning any '96 or newer car (OBD2) without a warranty.
My Go-to-the-dump '95 Chevy truck is my most expensive car to maintain. It is what it is.
Yep, I have a 2018 GLC300 with 47000 miles. My factory warranty in service date ended Jan 03 of this year. If this is not fixed goodwill, we are bailing on the brand. I know all vehicles have some issues, but clearly this is a design flaw. It affects GLA's C classes, anything with the 2.0 it seems. If they won't pony up and cover this we are bailing. I have owned a 1985 380SE, 2001 C240 RWD 6 speed manual, 2009 C300, 2012 C300, 2014 C300, 06 ML350, 08 ML350, 2012 GLK 350, 2012 E350 4Matic, Currently the 2018 GLC300 and I still have a 1990 300SL (10 years now) I dealt with the soft cam gear issue on my 06 ML, The drivers seat ripping prematurely on my 204 C class cars and my E Class. Also the faded wood on the E Class. But screw it. If this isn't covered we are trading in and going to another brand. These cars really aren't all that anymore. Sorry to break it to you if you think they are, but just go look at other new cars with far longer warranties and really good build quality . I NEVER thought I'd look at a Kia, never. My Sons' GF just got some kind of new larger SUV from them and it's a loaded nice vehicle with a ton of warranty and self driving features etc. While not for me, I'm just saying the competition is really really nipping at Mercedes heels. People do leave the brand. I will post back what I am told tomorrow when I call my dealer first, then if I have to others as well.
As expected this will not be covered goodwill. The real issue here is not the part breaking or the brand etc. It is this....The PCV systems are part of the emissions control system. The arrogant decision to NOT stand by the manufactured installed components is an unacceptable elitist stance. I checked the 2018 warranty and I do see 7 years/70000 miles emission in my state. The Federal is 8/80000..... My vehicle is a 2018 with 47K miles and is 2 months out of 4 years in service date warranty. So how can you deny this?? On that note, I will be trading this vehicle in for another brand. open the link if you like. https://www.mbusa.com/content/dam/mb...e_Warranty.pdf
Call your Attorney General's office to see if they support your claim that your part is emissions-related. Otherwise, you are out of warranty.
You're also beyond the MB parts and labor warranty after two years.
Let us know if you prevail.
As expected this will not be covered goodwill. The real issue here is not the part breaking or the brand etc. It is this....The PCV systems are part of the emissions control system. The arrogant decision to NOT stand by the manufactured installed components is an unacceptable elitist stance. I checked the 2018 warranty and I do see 7 years/70000 miles emission in my state. The Federal is 8/80000..... My vehicle is a 2018 with 47K miles and is 2 months out of 4 years in service date warranty. So how can you deny this?? On that note, I will be trading this vehicle in for another brand. open the link if you like. https://www.mbusa.com/content/dam/mb...e_Warranty.pdf
I've had this repair done TWICE. The first time was covered under warranty. The second time was not because the parts and labor are only warrantied for 1 year/10,000 miles, and it had been about 2 years. As far as using the Federal or State emissions warranty, they have a list of what IS covered under that warranty. I believe MB gets around this because it covers the "Crankcase Ventilation Pressure Regulator" but the repair order shows that it is a Crankcase Vent Valve that actually fails.
I filed a goodwill claim with MB Corporate and they subsidized my 2nd repair for about $550, so it ended up costing me $900 at my dealer. That dealer has new owners now and has raised labor rates 33% or so, so that same repair is now likely in the the $1900 range instead of the previous $1450.
I've had this repair done TWICE. The first time was covered under warranty. The second time was not because the parts and labor are only warrantied for 1 year/10,000 miles, and it had been about 2 years. As far as using the Federal or State emissions warranty, they have a list of what IS covered under that warranty. I believe MB gets around this because it covers the "Crankcase Ventilation Pressure Regulator" but the repair order shows that it is a Crankcase Vent Valve that actually fails.
I filed a goodwill claim with MB Corporate and they subsidized my 2nd repair for about $550, so it ended up costing me $900 at my dealer. That dealer has new owners now and has raised labor rates 33% or so, so that same repair is now likely in the the $1900 range instead of the previous $1450.
If you're in California or a state that adopts California emissions (https://mde.maryland.gov/programs/ai...es/states.aspx), it is covered under CCR §2037, because anything that affects emissions and over ~$600 qualifies as a "high cost part". BUT it is up to the manufacturer to list the part in their warranty. So there are many class action lawsuits going on with many manufacturers, for illegally not listing parts that according to law should be under warranty.
Best bet would be to email your state's emissions department and get a statement that the part is warrantied, and bring that to your dealer, or to MB corporate. I actually did this (CT), and they said it is under warranty, but I was outside the 7 year limit, because warranty starts on Jan 1 of the model year, regardless of the actual purchase date. If that doesn't work then go to Attorney General.
UPDATE: Dealer in North East PA DID cover entire repair under goodwill even though we are about 3 months out of warranty but still under mileage. Initially they were splitting it to the tune of 1100 on my end but eventually covered entire repair.
Check Engine Light came on.
Code P052E : Positive Crankcase Ventilation Regulator Valve Performance.
Pissed to see Check engine light so soon..
Anyone had this code? serious issue ?
I am just hoping this is not repeating nighitmare as my old Q7...
GLC 300, 2018, 43,457 KM
Check engine light came on. OBD2 reader code P052E
I had booked an appointment with dealer for further diagnosis and I was planing to replace the PCV (the part alone costs CAD $907). Before the appointment I went to oil change at the Great Canada Oil Change. Surprisingly, after the oil change, the check engine light turned off.
No code came out at all since 90,000 km more driven after i had replaced the part.
Recently I saw at c class forum that someone fixed by replacing only the valve part marked red in the picture. MB sells only the valve, cheaper ($100) and much easier (30 minutes) than the whole part by cutting and connecting with a hose clamp.
OK guys, pay close attention to this post by sn202020.
I just bought both a 2015 GLA 250 and a 2017 GLC 300, and both had the P052E code and the P06DA code. Additionally, the GLA 250 had the P0597 thermostat code. I ended up purchasing two of the vent valves, part number 274 018 73 01, (cost $63 each) and splicing them into the system rather than using the Mercedes recommended part (270 090 07 00) that costs at least $638 and requires a lot more labor.
The good news is that splicing in a new vent valve worked on both the GLC 300 and the GLA 250 to resolve the P052E code. The only codes I have left on both the GLC 300 and the GLA 250 are that P06DA code, and it does not make the check engine light come on. The P06DA code can simply be ignored, as recommended by Mercedes.
I made a P052E vent valve splicing video for both the GLC 300 and the GLA 250, and as soon as I've edited the video footage, I'll post them on YouTube along with a link to the videos here.
For all of owners that are dealing with the P052E code, just know that you do NOT have to pay $2,000 to fix it. On the GLC 300, I spent about 5 hours fixing the problem because I was being very cautious and shooting videos, but I could do the job again in less than 2 hours. On the GLA 250, I spent about 4 hours combined replacing the vent valve and the thermostat. But, again, I was being cautious and taking video. Neither required any great mechanical skills nor a lift (it was all done from above). I think I could do the entire vent valve/thermostat job again in about 3 hours on GLA 250. Parts cost for the vent valve was $73 including shipping.
Thanks to sn202020 for the tip on the Metris forum posts and for saving me almost $4,000 between the two vehicles!
Last edited by kcattorney; Jul 18, 2023 at 11:58 AM.
OK guys, pay close attention to this post by sn202020.
I just bought both a 2015 GLA 250 and a 2017 GLC 300, and both had the P052E code and the P06DA code. Additionally, the GLA 250 had the P0597 thermostat code. I ended up purchasing two of the vent valves, part number 274 018 73 01, (cost $63 each) and splicing them into the system rather than using the Mercedes recommended part (270 090 07 00) that costs at least $638 and requires a lot more labor.
The good news is that splicing in a new vent valve worked on both the GLC 300 and the GLA 250 to resolve the P052E code. The only codes I have left on both the GLC 300 and the GLA 250 are that P06DA code, and it does not make the check engine light come on. The P06DA code can simply be ignored, as recommended by Mercedes.
I made a P052E vent valve splicing video for both the GLC 300 and the GLA 250, and as soon as I've edited the video footage, I'll post them on YouTube along with a link to the videos here.
For all of owners that are dealing with the P052E code, just know that you do NOT have to pay $2,000 to fix it. On the GLC 300, I spent about 5 hours fixing the problem because I was being very cautious and shooting videos, but I could do the job again in less than 2 hours. On the GLA 250, I spent about 4 hours combined replacing the vent valve and the thermostat. But, again, I was being cautious and taking video. Neither required any great mechanical skills nor a lift (it was all done from above). I think I could do the entire vent valve/thermostat job again in about 3 hours on GLA 250. Parts cost for the vent valve was $73 including shipping.
Thanks to sn202020 for the tip on the Metris forum posts and for saving me almost $4,000 between the two vehicles!
OK guys, pay close attention to this post by sn202020.
I just bought both a 2015 GLA 250 and a 2017 GLC 300, and both had the P052E code and the P06DA code. Additionally, the GLA 250 had the P0597 thermostat code. I ended up purchasing two of the vent valves, part number 274 018 73 01, (cost $63 each) and splicing them into the system rather than using the Mercedes recommended part (270 090 07 00) that costs at least $638 and requires a lot more labor.
The good news is that splicing in a new vent valve worked on both the GLC 300 and the GLA 250 to resolve the P052E code. The only codes I have left on both the GLC 300 and the GLA 250 are that P06DA code, and it does not make the check engine light come on. The P06DA code can simply be ignored, as recommended by Mercedes.
I made a P052E vent valve splicing video for both the GLC 300 and the GLA 250, and as soon as I've edited the video footage, I'll post them on YouTube along with a link to the videos here.
For all of owners that are dealing with the P052E code, just know that you do NOT have to pay $2,000 to fix it. On the GLC 300, I spent about 5 hours fixing the problem because I was being very cautious and shooting videos, but I could do the job again in less than 2 hours. On the GLA 250, I spent about 4 hours combined replacing the vent valve and the thermostat. But, again, I was being cautious and taking video. Neither required any great mechanical skills nor a lift (it was all done from above). I think I could do the entire vent valve/thermostat job again in about 3 hours on GLA 250. Parts cost for the vent valve was $73 including shipping.
Thanks to sn202020 for the tip on the Metris forum posts and for saving me almost $4,000 between the two vehicles!
Thank you so much for sharing this and especially for the vids. Cant wait to see them.
OK guys, pay close attention to this post by sn202020.
I just bought both a 2015 GLA 250 and a 2017 GLC 300, and both had the P052E code and the P06DA code. Additionally, the GLA 250 had the P0597 thermostat code. I ended up purchasing two of the vent valves, part number 274 018 73 01, (cost $63 each) and splicing them into the system rather than using the Mercedes recommended part (270 090 07 00) that costs at least $638 and requires a lot more labor.
The good news is that splicing in a new vent valve worked on both the GLC 300 and the GLA 250 to resolve the P052E code. The only codes I have left on both the GLC 300 and the GLA 250 are that P06DA code, and it does not make the check engine light come on. The P06DA code can simply be ignored, as recommended by Mercedes.
I made a P052E vent valve splicing video for both the GLC 300 and the GLA 250, and as soon as I've edited the video footage, I'll post them on YouTube along with a link to the videos here.
For all of owners that are dealing with the P052E code, just know that you do NOT have to pay $2,000 to fix it. On the GLC 300, I spent about 5 hours fixing the problem because I was being very cautious and shooting videos, but I could do the job again in less than 2 hours. On the GLA 250, I spent about 4 hours combined replacing the vent valve and the thermostat. But, again, I was being cautious and taking video. Neither required any great mechanical skills nor a lift (it was all done from above). I think I could do the entire vent valve/thermostat job again in about 3 hours on GLA 250. Parts cost for the vent valve was $73 including shipping.
Thanks to sn202020 for the tip on the Metris forum posts and for saving me almost $4,000 between the two vehicles!
Hi, any update on the video? a specialist quoted me $2000. I'm trying to work on it myself.
Hello, I replaced the PCV in my 2018 GLC-300 after I got a fault for P152500: "The Check valve of the evaporative emission control system at full load is stuck open". It somewhat makes sense since the OEM revised Mercedes part I received does not have a check valve. I did some searching and it appears this may be normal? Can i splice in a new vent valve like someone mentioned earlier whats the best practice for this? Any insights would be greatly appreciated I'll attach a snip of what my pcv valve used to look like and what it looks like now. I took these pics from Google since I don't believe I took any prior to installing it. Thanks in advance. what old part looks like what new revised part looks like FCPeuro Receipt
Last edited by darepoole; Sep 26, 2023 at 11:42 AM.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
. They're replacing it with Part number 274090560080. I am still in return window, but I just love the car and hopefully I don't have to return it. My first Mercedes-Benz as a 40-year-old family guy and this is some next level after a 17 Honda accord that I have been driving the last 5+ years.
I doubt I'll ever go to the Hartford CT dealer for anything.
