so I recently purchased a 2017 Mercedes Benz CLA 250 its still under warranty . However the hot/cold gauge is really throwing me off. I got a full inspection and it needed coolant and I noticed when driving the car the gauge seems to be high, I was able to get the thermostat replaced and its doing the same thing, is this normal? i talked to a few mechanics and they said that's just how Mercedes thermostat run a little higher, please advise
2017 Mercedes Benz CLA 250 Hot Cold thermostat
- Thread starter sophie46
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That's entirely possible. My gf's old Delta 88 always ran slightly over the middle mark, whereas my 300ZX and Accord run cooler, with the needle a little below the middle mark.
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A lot of oil pressure gauges are just oil pressure "idiot lights" per se. They're always registering in the same position, no matter the actual oil pressure. Probably just there for "looks".
The red marks on the gauge indicate overheating. Anything between H and C is acceptable and can vary based on the outside temperature, engine load, vehicle speed, etc. If you were driving in Death Valley when it's 120°F, it may be closer to the H.
From my experience with my MIL's old A180d, the gauge is a 'dummy' gauge and should just sit in the dead centre at all times.
I'd get it plugged in and see exactly what temperature the ECU is reporting.
I'd get it plugged in and see exactly what temperature the ECU is reporting.
Well I am a women don’t know crap about cars and my first Mercedes so what’s normal for this car or another car beats me that’s why I asked
Thank you that makes sense
Makes sense thank you
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Absolutely! You’re very welcome.
Most Mercedes I've seen have the pointer a little above the mid point on the gauge in normal driving. Just a Mercedes thing. Unless it gets above the 3/4 point, I wouldn't worry about it.
As long as the gauge doesn’t enter the red zone, you’re OK but IME with Toyotas, if it’s in the upper scale it’s also cause for concern.
On older Mercedes, the temp gauge was marked off in degrees Celsius, as long as it hovered between 80*C and the mark before 120, you’re OK.
Keep in mind, your CLA250 has a small, turbocharged engine that tends to run a little hot.
On older Mercedes, the temp gauge was marked off in degrees Celsius, as long as it hovered between 80*C and the mark before 120, you’re OK.
Keep in mind, your CLA250 has a small, turbocharged engine that tends to run a little hot.
Awesome thank u
None of my Mercedes have a dummy temperature gauge. They’re accurate.
The reading varies with outside temperature and engine load. Right now, as Mrs. Astro drives, the SL is showing 85C. Just above half way.
I wouldn’t be worried until it exceeded 100C, about the 3/4 mark on the gauge.
For the OP, that looks fine for a real gauge showing real temperature.
