We need and M276 engine forum
Thread Starter
Senior Member
Joined: Mar 2022
Posts: 342
Likes: 112
2015 C400 4MATIC Palladium Silver Metallic
We need and M276 engine forum
We really need a place to consolidate all the M276 (turbo and NA) engine knowledge. This engine was used across so many chassis for so many years; it's just impractical to hunt and search across a half a dozen different sub forums for all the best knowledge.
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Joined: Apr 2019
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
M276 - NA/TT SIBLINGS
Last edited by CaliBenzDriver; Jul 16, 2025 at 11:36 PM.
Thread Starter
Senior Member
Joined: Mar 2022
Posts: 342
Likes: 112
2015 C400 4MATIC Palladium Silver Metallic
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Out Of Control!!
Joined: Apr 2019
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
ORGANIZED ECHO SYSTEM
Besides a lot of open issues are developed to be re-used across the board on other engine/chassis/makes.
We're dealing with low voltage, extreme heat, limited oiling, leaky connectors, rusted lines, unstable modules, CAN delays, .... & advanced rubber formulation!
Well spec'ed to be manageable.
Last edited by CaliBenzDriver; Jul 18, 2025 at 04:39 PM.
Thread Starter
Senior Member
Joined: Mar 2022
Posts: 342
Likes: 112
2015 C400 4MATIC Palladium Silver Metallic
Good idea if it was that way from the beginning, but trying to do that now would be a nightmare. Best (or better) to search on the issue you want to know more about. There are also experts here, such as @crconsulting and @S-Prihadi that you can ask.
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Joined: Sep 2018
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From: unbegrenzt
2017 GLE350 4MATIC
I suggested this years ago. There were no deaf ears for the suggestion to fall upon.
Site engagement is all that matters.
Engagement is harmed by efficient user experience.
Engagement is helped by a site with a flea market of unorganized information that users need to spend much time pawing through it all to find one somewhat useful fragment.
Site engagement is all that matters.
Engagement is harmed by efficient user experience.
Engagement is helped by a site with a flea market of unorganized information that users need to spend much time pawing through it all to find one somewhat useful fragment.
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
I suggested this years ago. There were no deaf ears for the suggestion to fall upon.
Site engagement is all that matters.
Engagement is harmed by efficient user experience.
Engagement is helped by a site with a flea market of unorganized information that users need to spend much time pawing through it all to find one somewhat useful fragment.
Site engagement is all that matters.
Engagement is harmed by efficient user experience.
Engagement is helped by a site with a flea market of unorganized information that users need to spend much time pawing through it all to find one somewhat useful fragment.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
M276 shares bones
Things are not gonna change by themselves - To see changes:
Contribute what you find works best.
You may organize your topics:
repair / maintenance / troubleshooting / specifics...
Every contributor comes in with his own perspectives. Free help is often welcome.
Contribute what you find works best.
You may organize your topics:
repair / maintenance / troubleshooting / specifics...
Every contributor comes in with his own perspectives. Free help is often welcome.
Last edited by CaliBenzDriver; Jul 19, 2025 at 06:00 PM.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Junior Member
Joined: Jul 2024
Posts: 50
Likes: 10
From: UK, Oxfordshire
C350 NA
I'm looking for some info on how to install an oil temperature gauge on my C350 with the M276 engine. Where do I fit the sensor and a gauge which will look right without screwing up the interior looks ?
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
MEASURING OIL TEMP
what sensor / mounted where
what gauge / mounted where
The M276-NA Bosch ECU has no oil sensor, can you live without one?
We know where to sense oil PRESSURE of the cooled oil near filter.
Engine oil temp is not the same every where.
Which one are you interested in?
What oil temp is best : hotter oil or cooler oil?
Last edited by CaliBenzDriver; Jul 24, 2025 at 05:18 AM.
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Minimal operating temperature for oil is 176°F (80°C). Below that, you are cautioned to drive gently. My normal temps for both my cars in the summer are 196°F to 215°F, with mostly 198°F to 205°F.
We know the oil temperature for the M276 (and others) is calculated and not measured. A while back, I measured my oil temp at the oil drain plug using an IR thermometer (actually two and took the average). The measured temps were within 1°F of the displayed (calculated) temperature. My cars (2015 SL400 and 2014 C350) will display the oil temp if you have the AMG menu added by @BenzNinja . So, whatever algorithm is used by Bosch to determine the oil temp based on a bunch of datapoints (ambient temp, transmission temp, coolant temp, load, RPMs, etc.), it seems to work.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Not too hot. Not too cold. Just right!
Minimal operating temperature for oil is 176°F (80°C). Below that, you are cautioned to drive gently. My normal temps for both my cars in the summer are 196°F to 215°F, with mostly 198°F to 205°F.
We know the oil temperature for the M276 (and others) is calculated and not measured. A while back, I measured my oil temp at the oil drain plug using an IR thermometer (actually two and took the average). The measured temps were within 1°F of the displayed (calculated) temperature. My cars (2015 SL400 and 2014 C350) will display the oil temp if you have the AMG menu added by @BenzNinja . So, whatever algorithm is used by Bosch to determine the oil temp based on a bunch of datapoints (ambient temp, transmission temp, coolant temp, load, RPMs, etc.), it seems to work.
Minimal operating temperature for oil is 176°F (80°C). Below that, you are cautioned to drive gently. My normal temps for both my cars in the summer are 196°F to 215°F, with mostly 198°F to 205°F.
We know the oil temperature for the M276 (and others) is calculated and not measured. A while back, I measured my oil temp at the oil drain plug using an IR thermometer (actually two and took the average). The measured temps were within 1°F of the displayed (calculated) temperature. My cars (2015 SL400 and 2014 C350) will display the oil temp if you have the AMG menu added by @BenzNinja . So, whatever algorithm is used by Bosch to determine the oil temp based on a bunch of datapoints (ambient temp, transmission temp, coolant temp, load, RPMs, etc.), it seems to work.
The other I was scouting around my cluster menus and managed to enable the oil menu.
I didn't get any data so I removed the option.
blank oil data
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
The engine oil temp displayed on the menu is very close to be equal to your oil pan temp, a sort of average temp for hot oil return to the pan.
The other I was scouting around my cluster menus and managed to enable the oil menu.
I didn't get any data so I removed the option.
The other I was scouting around my cluster menus and managed to enable the oil menu.
I didn't get any data so I removed the option.
Out Of Control!!
Joined: Apr 2019
Posts: 11,921
Likes: 6,775
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
Now, that's interesting. I know the oil level sensor is a simple binary on/off device and doesn't measure the actual level. Where did you find the menu? I know that a while back I was futzing with trying get an oil level display on my IC and started to get those low-level warnings.
My ECU knows nothing about engine oil that can be displayed, not even computed number from misc inputs.
