Check Engine: P0191 code
Thread Starter
Junior Member
Joined: Mar 2008
Posts: 39
Likes: 0
From: Burlington, Canada
'06 E55,'10 ML63
Check Engine: P0191 code
Check engine light came on. So I scanned via Star and got the following code:
P0191 Fuel pressure control:the upper limit value is reached*
Anyone ever have this code? or have any clue as to what it might be?
This is for my Ml63 but that forum is fairly slow so I thought I'd try you guys...
Ray
P0191 Fuel pressure control:the upper limit value is reached*
Anyone ever have this code? or have any clue as to what it might be?
This is for my Ml63 but that forum is fairly slow so I thought I'd try you guys...
Ray
Member
Joined: Aug 2015
Posts: 137
Likes: 5
2008 C63
so my 08 C63 has had this problem for awhile now. took it in and the indy shop says it's P0191 and 3699 - Upper limit has been reached or whatever. They say according to their tech site, all of the repairs for this code on this motor have been to replace the fuel pumps. changing the fuel pressure sensor on the fuel rail does nothing.
Member
Joined: Jul 2011
Posts: 106
Likes: 6
From: Dallas, TX
CLK63 BS
https://mbworld.org/forums/clk63-bla...p-failure.html
Here is a thread that was on the BS page. It shows the pic of my old and new filter. The fuel just clogs the hoses and upsets the pressure. If your car is 5/6 years old, its due for a filter change anyway and its a lot cheaper than pumps, although some have had to change pumps as well.
If you are being cheap and are mechanical, you can buy walboro pumps off amazon and retro fit them in. I was going to do that, but the filter solved my problem.
Here is a thread that was on the BS page. It shows the pic of my old and new filter. The fuel just clogs the hoses and upsets the pressure. If your car is 5/6 years old, its due for a filter change anyway and its a lot cheaper than pumps, although some have had to change pumps as well.
If you are being cheap and are mechanical, you can buy walboro pumps off amazon and retro fit them in. I was going to do that, but the filter solved my problem.
Junior Member
Joined: May 2016
Posts: 22
Likes: 0
ml 63 amg
Please help me
Hello
I have a ml63 AMG 2007
I have THE same problem 3699 p0191.
If i drive my car THE first 15 minuten i have full power , and than THE car goes slowly.
Parking THE car for 1 a 2 hours than i have 15 minutes full power.
I have replaced:
Fullpomp
Fullfilter
Fullmodule
Full sensor
No results..
Please help me
I have a ml63 AMG 2007
I have THE same problem 3699 p0191.
If i drive my car THE first 15 minuten i have full power , and than THE car goes slowly.
Parking THE car for 1 a 2 hours than i have 15 minutes full power.
I have replaced:
Fullpomp
Fullfilter
Fullmodule
Full sensor
No results..
Please help me
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Junior Member
Joined: May 2016
Posts: 22
Likes: 0
ml 63 amg
Check engine light came on. So I scanned via Star and got the following code:
P0191 Fuel pressure control:the upper limit value is reached*
Anyone ever have this code? or have any clue as to what it might be?
This is for my Ml63 but that forum is fairly slow so I thought I'd try you guys...
Ray
P0191 Fuel pressure control:the upper limit value is reached*
Anyone ever have this code? or have any clue as to what it might be?
This is for my Ml63 but that forum is fairly slow so I thought I'd try you guys...
Ray
How you did that ?
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MBWorld Fanatic!
Joined: Apr 2010
Posts: 1,955
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2017 Mini Cooper S Clubman ALL4 - British Racing Green
No wonder you have a problem, you can't follow instructions. It says to remove the film before use 
Jokes aside, I had the same problem a few years back. Both pumps were replaced under warranty, for me that solved the problem.
Jokes aside, I had the same problem a few years back. Both pumps were replaced under warranty, for me that solved the problem.
Junior Member
Joined: May 2016
Posts: 22
Likes: 0
ml 63 amg
What must i remove ?
Can you help me with this problem.
Member
Joined: Jul 2011
Posts: 106
Likes: 6
From: Dallas, TX
CLK63 BS
Hello
I have a ml63 AMG 2007
I have THE same problem 3699 p0191.
If i drive my car THE first 15 minuten i have full power , and than THE car goes slowly.
Parking THE car for 1 a 2 hours than i have 15 minutes full power.
I have replaced:
Fullpomp
Fullfilter
Fullmodule
Full sensor
No results..
Please help me
I have a ml63 AMG 2007
I have THE same problem 3699 p0191.
If i drive my car THE first 15 minuten i have full power , and than THE car goes slowly.
Parking THE car for 1 a 2 hours than i have 15 minutes full power.
I have replaced:
Fullpomp
Fullfilter
Fullmodule
Full sensor
No results..
Please help me
https://mbworld.org/forums/w211-amg/...-m156-e63.html
Junior Member
Joined: May 2016
Posts: 22
Likes: 0
ml 63 amg
When you start the car, is there a high pitched whine or whistling sound. If so it may need a PCV valve replaced. This can also cause the P0191 code.
https://mbworld.org/forums/w211-amg/...-m156-e63.html
https://mbworld.org/forums/w211-amg/...-m156-e63.html
THE sound is normal for 10/15 minutes with fullpower. And then i want do a kickdown the sound is not normal, en than the full power is gone.
Parking for 2 hours than i have
Help me please
Junior Member
Joined: Jun 2014
Posts: 62
Likes: 0
From: Calgary
'10 C63 AMG
When you start the car, is there a high pitched whine or whistling sound. If so it may need a PCV valve replaced. This can also cause the P0191 code.
https://mbworld.org/forums/w211-amg/...-m156-e63.html
https://mbworld.org/forums/w211-amg/...-m156-e63.html
Junior Member
Joined: May 2016
Posts: 22
Likes: 0
ml 63 amg
MBWorld Fanatic!
Joined: Jun 2008
Posts: 8,074
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From: Los Angeles
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Super Member
Joined: Oct 2013
Posts: 508
Likes: 57
09 C63 AMG
Try finding a shop that has a good diagnostician so you stop throwing parts at it if they aren't solving the issue. Too many shops throw parts at issues because they aren't playing with their own money.
Also, is anyone else reading this thread like it's Borat?
Also, is anyone else reading this thread like it's Borat?
MBWorld Fanatic!
Joined: Aug 2011
Posts: 5,351
Likes: 1,677
From: Kitchener, ON
2010 C63 AMG
Couple different solutions in here --> https://mbworld.org/forums/c63-amg-w...ust-pipes.html
Newbie
Joined: May 2022
Posts: 11
Likes: 0
2014 c63
so my 08 C63 has had this problem for awhile now. took it in and the indy shop says it's P0191 and 3699 - Upper limit has been reached or whatever. They say according to their tech site, all of the repairs for this code on this motor have been to replace the fuel pumps. changing the fuel pressure sensor on the fuel rail does nothing.
The codes im getting is 3699 but not p0191
Member
Joined: Jun 2018
Posts: 108
Likes: 2
C63 AMG W204
