how many litres

[c320]

does an average modern MB hold of engine oil?

Is there any difference in say the c180k and the c320?

How much oil would be needed for either during a service?

thanks!

 

[Myros]

about 8 litres

it's exactly 7.5 on my M110 C280 and exactly 8.0 on my M117 500 SL. Can't say about the 4 cylinder stuff, probably not as much.

 

[dogsbody]

how many litres?

320 engine is 8 litres including the oil filter. The E200 is 5.5 litres so I assume the C180 is similar

 

[c320]

thanks guys - is 8 for the c320 an absoloute maximum? or can more be added thus harming the engine?

 

[television]

Never over fill with oil, you will knock out the CAT,
why do you want to put more in !.

Malcolm

 

[c320]

Just looking for an idea of what would constitute an overfill.

See, a 320 appears to have a maximum threshold of 8 litres - correct? now what if i put in say 8.2? am i risking serious damage here by such a small amount?

Not that I am going to do this!!!

 

[tom7035]

Your car's dipstick has two levels marked - Max and Min. Anywhere between these levels is safe, but obviously it is better to keep it nearer the max, for better engine cooling via the oil and obviously should the engine develop a leak it gives a margin of time to discover it before damage is done. Filling the sump with sufficient oil is not rocket science.

 

[paulcallender]

it's exactly 7.5 on my M110 C280 and exactly 8.0 on my M117 500 SL. Can't say about the 4 cylinder stuff, probably not as much.

Which year is the C280? Do you mean 280CE?

 

[c320]

Your car's dipstick has two levels marked - Max and Min. Anywhere between these levels is safe, but obviously it is better to keep it nearer the max, for better engine cooling via the oil and obviously should the engine develop a leak it gives a margin of time to discover it before damage is done. Filling the sump with sufficient oil is not rocket science.

OK.

Maybe I should have added the fact that I was referring to a modern MB which does not have a manual dipstick.. damn I already did that - is that the rocket science you are refring to?

So, for those of us who are not familiar with the science of rockets, can i ask this question for cars where there is not a dipstick and you rely on the sensor of the car?

 

[c320]

Which year is the C280? Do you mean 280CE?

i think he means a w202.

 

[paulcallender]

i think he means a w202.

With an M110 motor??????

The W114 280C (not available in the UK) and 280CE, had M110 engines. The W202 C280 has a M112.920 engine.

 

[c320]

With an M110 motor??????

The W114 280C (not available in the UK) and 280CE, had M110 engines. The W202 C280 has a M112.920 engine.

I learn something new everyday!

 

[tom7035]

OK.

Maybe I should have added the fact that I was referring to a modern MB which does not have a manual dipstick.. damn I already did that - is that the rocket science you are refring to?

So, for those of us who are not familiar with the science of rockets, can i ask this question for cars where there is not a dipstick and you rely on the sensor of the car?

No need to get sarky - was just trying to help.

 

[paulcallender]

For a car without dipstick, the usual technique (eg after oil change) is to add the specified amount of oil, as per its specific service schedule. There will be a tolerance on this, so if it say 8.0 litres and you add 8.2 litres, no worries. But if you inadvertently added 9 litres, then I'd be tempted to try take 1 litre out again. Of course, if it was inadvertent, you might not know it was done!

 

[jberks]

I believe you are ok with 8.2, probably up to 8.5 ish, but in any case I always used an old kitchen measuring jug to put the oil in 1l at a time. I don't believe its that critical for .1 or .2 but just try to keep it to 8 if that's the recommendation. You'd actually be better at 7.9!
Once filled, run the engine for a few mins then check the level on the computer again. If its happy, you can be too.

 

[Myros]

okay okay okay okay

so it's an M112. Close enough for a man suffering child-induced sleep deprivation. I use a Duckhams freebie oil-measuring jug I've had over twenty years now. I also measure how much I get out when I'm changing oil. the things that captivate the imagination.
And as promised, I did do a suction-type oil change on the SL last month, and there was no significant quantity of oil left in the sump. The dribble that came out I think would have come out by the normal method, as I had to jack the car up at the front to get at the sump, something the garage wouldn't do as they hav it up on a ramp.

 

[996jimbo]

Never over fill with oil, you will knock out the CAT,
why do you want to put more in !.

Malcolm

I always understood that the risk from overfilling oil was that the crank case would be overpressurised and blow the crank seals. Was I wrong, and how does the cat get knackered by too much oil in the sump?

 

[tom7035]

The crankcase won't 'pressurise' provided the breathing system is in order. I think the problem arising from overfilling is excessive oil misting/splash which would cause the breathing system to clog up and thus create some pressure, resulting in blown seals and oil burning - and this is detrimental to the cat.

 

[television]

The piston reley on splash for lubrcation, to much oil, to much splash, gets burnt, goodbye cat, and goodbye me.

Malcolm

 

[dogsbody]

how many litres?

If you put more oil in than is recommended, I would not worry about the CAT, because it will cause rupture of oil seals, due to excessive sump pressure due to lack of an expansion volume.
Too much oil has the same effect as no oil at all! It wrecks the engine