Need some help!
#1
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2007 ML63, 2008 CLK63 AMG Black Series
Need some help!
As i was driving back from work today, my check engine light came on. The car continued to run well and i just had done an oil change the day before. I looked up the codes and it came up with P0161 and P3699. ran some tests and this is what came up. i attached the full report if anyone was interested.
MID:$7e TID:$33 - Max: 817.70001g Min: 5,543.2002g Test result value: 6,552.30029g FAIL ---- MID:$81 TID:$3b - Fuel System Monitor Bank 1 Max: -2,457.6001 Min: 2,667.19995 Test result value: 1,561.59998 FAIL ---- MID:$81 TID:$40 - Fuel System Monitor Bank 1 Max: -2,457.6001 Min: 1,028.80005 Test result value: 1,561.59998 FAIL
from my understanding it might be a fuel pump issue from what my mechanic told me, but i think it might be a fuel filter problem.
Has anyone had this issue before?
MID:$7e TID:$33 - Max: 817.70001g Min: 5,543.2002g Test result value: 6,552.30029g FAIL ---- MID:$81 TID:$3b - Fuel System Monitor Bank 1 Max: -2,457.6001 Min: 2,667.19995 Test result value: 1,561.59998 FAIL ---- MID:$81 TID:$40 - Fuel System Monitor Bank 1 Max: -2,457.6001 Min: 1,028.80005 Test result value: 1,561.59998 FAIL
from my understanding it might be a fuel pump issue from what my mechanic told me, but i think it might be a fuel filter problem.
Has anyone had this issue before?
#2
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Location: Ashburn, VA
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2008 CLK63 Black Series
Your mechanic is right it is the Auxiliary Fuel pump. I had the same 3699 code before, and my mechanic replaced the pump and fuel pressure sensor on the rail due to fluctuating fuel pressure.
#4
MBWorld Fanatic!
`
I would agree with shellx
3699 - Doesn't this mean that the
upper limit value is reached
Please update how diagnostic went
Thank-You
D.B.
`
I would agree with shellx
3699 - Doesn't this mean that the
upper limit value is reached
Please update how diagnostic went
Thank-You
D.B.
`