technical question about overheating

[grim]

95-100 is perfectly fine.

My car hovers around 95 with normal driving, hard driving I've seen it hit 105

 

[Jet-Fighter7700]

95-100 is perfectly fine.

My car hovers around 95 with normal driving, hard driving I've seen it hit 105

make and model? what size engine?

 

[grim]

make and model? what size engine?

2010 Scirocco 2.0TSI

 

[Jet-Fighter7700]

2010 Scirocco 2.0TSI

; this is a lot bigger than mine mine is a 1.1L
do they all behave the same way? and have similar temp profiles; id think as mine is smaller it would run cooler; but again not totally sure.....

also not sure petrol VS diesel

 

[grim]

; this is a lot bigger than mine mine is a 1.1L
do they all behave the same way? and have similar temp profiles; id think as mine is smaller it would run cooler; but again not totally sure.....

also not sure petrol VS diesel

Your car's radiator is a lot smaller than my car's, as my car produces much, much more heat than your car. Smaller engines produce less heat so they don't need the same size radiators as large engines, a turbo/super charged engine also requires more cooling than a naturally aspirated car.

Generally all modern petrol engine cars run their water temp between 90-100, not sure about diesels as I've never owned one but I would imagine it's around the same.

 

[SauRoNZA]

100 is perfectly normal and I'm sure the fan wouldn't even come on at that temperature.

Unless you have the fan running all the time I wouldn't worry too much.

 

[SauRoNZA]

95-100 is perfectly fine.

My car hovers around 95 with normal driving, hard driving I've seen it hit 105

Much the same for my 2.0T Golf GTI.

 

[PhireSide]

Also something to keep in mind is that the temperatures need to stay in a certain band for the engine to be efficient.

Too hot, and you run the risk of detonation and pinging which will shorten the life of the engine.

Too cold, and the atomised fuel will condense on the cylinder walls and run down near the rings, contaminating your oil and producing abnormal wear to your cylinder linings.

 

[silver6933]

I would be concerned that your car is running parts from a different car.

However the temp mentioned is acceptable.

Even if you had a temp gauge in the car, It would only move once the car is good and properly overheated. (most Temp gauges are dampened, so it displays the same position on the gauge at 88C vs 105C

 

[Sinbad]

The hyundai and kia are basically the same platform.

 

[Jet-Fighter7700]

I would be concerned that your car is running parts from a different car.

However the temp mentioned is acceptable.

Even if you had a temp gauge in the car, It would only more once the car is good and properly overheated. (most Temp gauges are dampened, so it displays the same position on the gauge at 88C vs 105C

this is my concern as well; although in my case its similar enough, but again no way to be sure; no technical specs anywhere asked on a kia/hyundai forum already;

should I try the suggestion above to try remove airlocks from the radiator first? does it work in fuel injected cars?

also is it even necessary? like I mentioned; it drives ok, but Im worried about overheating in summer with no temp gauge, at least with one you have some form of warning;
before the engine seizes up and forever ruined;

 

[Archer]

You're making a mountain out of a mole hill. The warning light doesn't come on just as the engine explodes - it'll come on quite a while before.

 

[Jet-Fighter7700]

You're making a mountain out of a mole hill. The warning light doesn't come on just as the engine explodes - it'll come on quite a while before.

whew; thats a relief; I was scared that its to warn you the engine is dead and nothing you can do about it.....

so when it sits at 100 its fine as long as the fan comes on and cools it down;

 

[Sinbad]

whew; thats a relief; I was scared that its to warn you the engine is dead and nothing you can do about it.....

so when it sits at 100 its fine as long as the fan comes on and cools it down;

Yup. My car runs at 98 or so...

 

[Drifter]

You're making a mountain out of a mole hill. The warning light doesn't come on just as the engine explodes - it'll come on quite a while before.

Depends om what car. If the warning light on a Ford Ka comes on, it's too late.

 

[SauRoNZA]

this is my concern as well; although in my case its similar enough, but again no way to be sure; no technical specs anywhere asked on a kia/hyundai forum already;

should I try the suggestion above to try remove airlocks from the radiator first? does it work in fuel injected cars?

also is it even necessary? like I mentioned; it drives ok, but Im worried about overheating in summer with no temp gauge, at least with one you have some form of warning;
before the engine seizes up and forever ruined;

is your fan running all the time? If not, it's not overheating.

whew; thats a relief; I was scared that its to warn you the engine is dead and nothing you can do about it.....

so when it sits at 100 its fine as long as the fan comes on and cools it down;

But when the light does come on (which hopefully will be never) STOP and call for backup.

Don't be like some women who just keep driving with the lights on ignoring the white smoke and popping noises.

 

[SauRoNZA]

Depends om what car. If the warning light on a Ford Ka comes on, it's too late.

Those warning lights mean a great many things so it's not really a reliable source of anything.

It could mean the engine is overheating or the fuel injection or ECU has died or even a spark plug isn't firing.

Point is when the light comes on you need to STOP and make a plan because something serious is wrong.

 

[Archer]

Depends om what car. If the warning light on a Ford Ka comes on, it's too late.

No, it does not depend on the car. If the high temp warning light comes on it is warning you of the upcoming issue. The same with your engine warning light. Which is different to the engine stop light (and even that doesn't indicate all is lost).

The manual for a Ka even states:

The warning light turns on when the engine is overheated. If the warning light comes on when driving, proceed as follows:
❒ in standard driving conditions:
stop the car, switch off the engine and check whether the water level in the reservoir is not below the MIN. mark. In this case, wait for a few minutes for the engine to cool down, then slowly and carefully open the cap, top-up with coolant and check that the level is between the MIN. and MAX. marks on the reservoir itself. Also check visually for any fluid leaks. Should the warning light turn on again at the next start-up

That clearly shows that having the warning light come on is not the end of the world. I suspect whatever happened in your experience was exacerbated by another issue, or we're not talking about the same warning light

 

[SauRoNZA]

That clearly shows that having the warning light come on is not the end of the world. I suspect whatever happened in your experience was exacerbated by another issue, or we're not talking about the same warning light

That would be my bet if the car has multiple.

 

[Pitbull]

I might be wrong, but I think a car only over heats at 120+