P0025 – "B" camshaft position timing over retard bank 2
Receive the this error message (P0025 – "B" camshaft position timing over retard bank 2) when I went to smog my 2007 S550
I purchased a camshaft positioning sensor but I don't know where to install it.
I did some research on the board and downloaded 3 files listed below but I'm unable to determine which sensor I am supposed to replace…
Need help determining where to replace sensor
Install solenoid camshaft left.pdf
install solenoid camshaft right.pdf
2012070002.pdf
Does the photo demonstrate bank B? (Passenger-side)
Is the sensor that needs to be replaced. Indicated with an arrow on the lower left side of the picture?.
Could someone kindly chime in with confirmation or suggestions.
Thank you.
Regards,
Last edited by F16 Driver; Nov 7, 2024 at 06:51 PM.
bank B ought to mean cyls 5 to 8
as the oil filler is by cyl 1 this ought to be bank A
and don't forget its a quad cam engine so 4 sensors 2 x inlet and 2 x exhaust
Requesting further clarification and guidance:
I'm in a state of confusion about a few things. Please help me clarify:
The above picture demonstrates error code P0025 as being located on drivers side of the engine.
I'm aware that there are 2 cam positioning sensors on each head 1 for the exhaust and 1 for the intake
I'm a little confused with the verbiage used in the published procedure to remove/install solenoid camshaft
exhaust camshaft hall sensor
exhaust camshaft is solenoid
My plan of attack is to replace exhaust cam positioning sensor (hall sensor) and Variable Valve Timing Solenoid (exhaust camshaft solenoid) on the driver side in the lower position
As demonstrated in the picture above.
Am I making the correct assumption?
Thank you in advance for your time and consideration with helping me solve my dilemma
Regards,
F-16 driver
Last edited by F16 Driver; Nov 8, 2024 at 04:48 AM.
so there were later sensors and as the ones you have might be originals, or by now 12 years old anyway, new sensors all round isn't a bad idea - then see if things behave better
I can't see much value in just doing one side....
essential others
heater buttons faulty (REST never worked)
all fours door modules, thermal trip too low and doesn't reset so the windows just stop working
comand system (big 2008 update - never done in the UK, not sure about anywhere else - dealers no longer undertake it, so I gather)
re the other can bits can't you just buy the 4 current cam sensors parts - and fit what they give you - by the way supposed to be a short link wire between the loom and the sensors to discourage oil leaking by - that's what the first PDF is on about - was meant o be free parts and fitting









