SL/R231: Lack of gauges
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Joined: Jan 2023
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From: SE Florida
2025 GLC 300, (formerly) 2018 SL550
Lack of gauges
I have the base SL, and am disappointed there are no gauges, real or digital. Would like to monitor things like oil temp/pressure, boost pressure, etc. What is everyone else doing? I know your going to say get an AMG, which is probably what I will do in a a few yrs. They have them, right?
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From: NorCal
2015 ML350+2025 E350
I have the base SL, and am disappointed there are no gauges, real or digital. Would like to monitor things like oil temp/pressure, boost pressure, etc. What is everyone else doing? I know your going to say get an AMG, which is probably what I will do in a a few yrs. They have them, right?
Scroll down in this forum and find a discussion about replacing the clock with a Turbo Boost Gauge. Don't know if anyone has done it, as I'm one of the "everyones" I mentioned earlier.
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From: God's County (Yorkshire)
Shanks’s Pony
I have the base SL, and am disappointed there are no gauges, real or digital. Would like to monitor things like oil temp/pressure, boost pressure, etc. What is everyone else doing? I know your going to say get an AMG, which is probably what I will do in a a few yrs. They have them, right?
EDIT - also displayed HP & Torque.
Last edited by rorywquin; Apr 13, 2023 at 03:49 AM.
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2014 sl550
contact this guy if you want hassle free coding. On one dongle he can add more features like eco mode off etc at extra.
you plug into obd2 port and follow steps on nav screen.
i think i have done every possible option for coding.
amg menu, eco start off . Agility mode (which i found unneccessary) and also transmission to start in S mode (this i had to do from another source, i have a tread about it)
video is from my 14 sl550.
starts in S mode for engine and transmission and you can also see amg menu on cluster
https://youtube.com/shorts/l4h205PKL-U?feature=share
Last edited by toi; Apr 11, 2023 at 05:39 AM.
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2019 SL450, 2019 E450 Luxury Trim Wagon, 2024 BMW I7 xDrive60
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AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
I am not sure what the oil pressure will give you though. These days where engines don't even have dip sticks anymore due to sensor-based engine monitoring, the pressure gauge somehow feels superflouos. The engine should give you messages well before you would see a drop in pressure.
Come to think of it, I didn't recall seeing oil pressure info on our AMG's. The boost gauge on the other hand provides instant feedback relative to rpm's. Very useful. indicator of engine performance/health...
Come to think of it, I didn't recall seeing oil pressure info on our AMG's. The boost gauge on the other hand provides instant feedback relative to rpm's. Very useful. indicator of engine performance/health...
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
Nice classic E-type interior, but the Jag actually has less gauges than the R231 
The SL has oil temp vs pressure, which would be more relevant...
The SL has oil temp vs pressure, which would be more relevant...
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From: God's County (Yorkshire)
Shanks’s Pony
I always started the (SL) engine and drove at low revs until the oil was up to temperature. It always amuses me to see people who sit in their car idling until the water temperature is ok and then drive the car like the rest of the moving parts are all warm. My observation is that it took 2x longer for the oil to get to the correct temperature vs the water.
I was taught to start the car and drive off (once visibility was acceptable) carefully (low revs) until the car was properly warmed up.
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
I fitted my first car with an oil pressure gauge, water temperature and ammeter - not sure what oil pressure told me but it looked cool.
I always started the (SL) engine and drove at low revs until the oil was up to temperature. It always amuses me to see people who sit in their car idling until the water temperature is ok and then drive the car like the rest of the moving parts are all warm. My observation is that it took 2x longer for the oil to get to the correct temperature vs the water.
I was taught to start the car and drive off (once visibility was acceptable) carefully (low revs) until the car was properly warmed up.
I always started the (SL) engine and drove at low revs until the oil was up to temperature. It always amuses me to see people who sit in their car idling until the water temperature is ok and then drive the car like the rest of the moving parts are all warm. My observation is that it took 2x longer for the oil to get to the correct temperature vs the water.
I was taught to start the car and drive off (once visibility was acceptable) carefully (low revs) until the car was properly warmed up.
Thread Starter
Member
Joined: Jan 2023
Posts: 90
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From: SE Florida
2025 GLC 300, (formerly) 2018 SL550
I would love to know what my oil temp is, so I know when it's ok to give it the beans. The sw solution above wouldn't be handy enough for me, as accessing that screen is a pia while driving, plus you give up the digital speedo.
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2014 sl550
digital speed is displayed via small font top left of the temps
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From: Land of 10,000 lakes
AMG GTC Roadster, E63s Ed.1, M8 Comp. Coupe
It’s on the Comand Screen -> Vehicle -> Dynamic Select -> Engine Data
You can leave the screen up permanently if desired.
