Hello, everybody,
I would like to log the oil temperature of my Mercedes C63 W204 year 2010 from the engine and transmission.
In the display I already have both indications.
I know that I can adjust custom PID. But I can't find any values in the internet.
Has someone already done this with a Mercedes and can provide me with these values or explain to me how I can use them?
Thanks a lot!
Comments
https://www.plxdevices.net/articles.php?article=obd_mercedes
Will this help? Can someone explain me how I set up the trans and engine oil temperature with that?
Thank you guys.
Greetings from Germany
so I bought a old android phone and torque pro.
With torque, there is one option that works with the Trans Oil to 100% right.
There is also another trans oil option, but it seems like, if that will be the engine oil. Not 100% right. The engine oil PID is sometimes a little bit less and sometimes a little but more as on the real dashboard. Is it possible to fix that?
Here are the Informations from Torque.
Transmission Oil Temperature PID that works 100% right for Mercedes W204:
PID: 2130
Min. 0.0
Max. 200.0
Scaling factor: x1
Device type: Celsius
Equation: L-50
OBD Header: 7E1
And now Engine Oil Temperature:
PID: 0105
Min. 0.0
Max. 200.0
Scaling factor: x1
Device type: Celsius
Equation: A-40
OBD Header: TCM
This PID information is listed at torque as gearbox temperature, but it shows the oil temperature. The problem here is that it does not always show 1:1 the same temperature as in the gauge. Around 90 degrees it is about the same below it shows less, above it shows a little more. Is it possible to change this using the equation from the normal preset engine oil temperature gauge?
How do I get this information integrated into Racechrono? Can you explain this to someone?
Thanks a lot! I would like to go to the Nordschleife tomorrow and hope that someone can give me the information today.
But, the PID from the Transmission Oil dont work. Racechrono dont know the Equation L-50. What can I use for that ? In torque it works perfect.
https://racechrono.com/support/equations
The Transmission Oil Temperature is easy. The A in torque refers to byte 0 on the response, and therefore L refers to byte 11.
PID: 0x2130
Equation: bytesToUint(raw, 11, 1) - 50.0
Header: 0x7E1
The Engine Oil Temperature is harder as I don't know which hexadecimal header the "TCM" refers to in torque. Sounds like Traction Control Module, but then again its engine PID.
Here's some of the headers used in Fords for example:
PCM - Powertrain Control Module - 0x7E0
ABS - Anti Lock Brake System - 0x760
IPC - Insturment Panel Cluster - 0x720
PSCM - Power Steering Control Module - 0x730
RCM - Restraints Control Module - 0x737
Oil temperature may be the wrong PID. I will check that.