Higher oil temp than Normal

[woodsjbw]

Noticed the M's oil temp has been running a little higher than normal. Ran the OBD and got:
P316B/ Engine Coolant Temp Signal Stuck
P0116/ Engine Coolant temp Circuit Range/ Performance
P0128 / Coolant t-stat regulating temp

It has around 87k miles. Already know it's time to Replace the T-stat, and might as well do the water pump, just looking for some thoughts on what else I should look at before throwing money at the issue.

[panda-R]

Do you have a leak?
Is the overflow bone dry?

the t-stat and t-stat sensor is cheap.
The water pump isn't cheap but it is what it is but u don't have to really change it till it gives out.

[woodsjbw]

Originally Posted by panda-R

Do you have a leak?
Is the overflow bone dry?

the t-stat and t-stat sensor is cheap.
The water pump isn't cheap but it is what it is but u don't have to really change it till it gives out.

No leaks. Don't notice any residue on the ground or anything. I took it to the dealership to have the oil change, and fluid check. So, all is good in that regard. It's a little weird to be replacing these parts again seeing that I did it back in Jan of 21', but I think the shop I went to didn't replace them with OEM parts.

[panda-R]

hard to speculate what the dealership did unless you watched them or know what they put in.

the t-stat and the sensor are pretty easy DIY if you want to know if it was done or done properly.

[woodsjbw]

Already have the parts on order for the T-stat and Sensor b/c that's what the OBD2 is saying so we'll see how it goes once that's done.

[s0ldats]

out of curiosity, what is higher than normal?

[woodsjbw]

on the way up to Stockton from Monterey it was fluctuating between 240-270.. Now it was a littler warmer outside around 90 degrees. But I don't want to take any chances, especially since I was getting codes.

[s0ldats]

Originally Posted by woodsjbw

on the way up to Stockton from Monterey it was fluctuating between 240-270.. Now it was a littler warmer outside around 90 degrees. But I don't want to take any chances, especially since I was getting codes.

were the codes triggering CEL? or just when you scan

[woodsjbw]

The CEL light is always on b/c I run ITB's (velocity stacks) an Alpha N tune & no plenum. HOWEVER, I usually only have the increased emissions code P0068 MAP/MAF sensor because the IAT Sensor is not plugged into the Plenum anymore. still haven't figured out a way to remedy that one..

But when I scanned this time, I got all the other codes referencing the T-STAT.
I confirmed its bad, so I am in the process of replacing it along with the sensor. Not messing with the housing or the pump.

[woodsjbw]

Originally Posted by s0ldats

were the codes triggering CEL? or just when you scan

Pic we took before the finished ITB project just for reference.

[Brandoch]

Your doing a project like that but still don't have a BMW scanner?

[Brandoch]

P codes are not bmw codes

[woodsjbw]

Originally Posted by Brandoch

P codes are not bmw codes

You're talking about a BMW Specific, I've got a Regular OBD scanner. Ill look into grabbing another one. any recommendations for the best one?

[Brandoch]

Foxwell, ISTA/ INPA, Protool, ect... just not carly

[woodsjbw]

Originally Posted by Brandoch

Foxwell, ISTA/ INPA, Protool, ect... just not carly

Thx Man, the projects been done. I've run this set up for a few years not issues. Just the IAT sensor thing i Mentioned.

[s0ldats]

keep us posted if the t-stat corrects your issue !

[Soden82]

Originally Posted by Brandoch

Foxwell, ISTA/ INPA, Protool, ect... just not carly

Any normal foxwell will do?

[tdott]

Originally Posted by Brandoch

Foxwell, ISTA/ INPA, Protool, ect... just not carly

Carly is better than a generic code reader imo.

[Brandoch]

Originally Posted by Soden82

Any normal foxwell will do?

NT510 and 530 are popular. Im not sure if all of foxwell scanners will work for BMW specific codes, but there are a lot of them that will.

[woodsjbw]

Tstat was the issue all good to go!