KingsoverQueens

2013 S550 4matic.

Right at around 150,000 miles I started getting the "check oil at next refuel" warning light.

I just had the big water pump and front gasket and line job done, so the mechanic checked to make sure there were no leaks. clean as a whistle. he says burning oil for a car with that many miles is normal, due to the turbos.

I've serviced the car at the dealer from day one when the car told me it needed service.

Just isn't sitting right.

Jaap

Could be the PCV system blowing oil back into the intake

BOTUS

cars are now designed to die - its been in development from most manufacturers since the early 2000s where they then knew how to basically makes them last for 55 years and the accountants extrapolated this to the end of the company...

as Germans (alongside the evil rich from Britain and a certain religion) are the main contributor to the worlds issues (using the USA and the positive attitude to deliver the plan). These criminals picked up on the dilemma many years back and Mercedes started on the make them die plan with their vehicles from 1990 and since spend most of their R&D budget on finessing the time to death

this sick designed in obsolescence currently allows for increased car sales - all the governments are in on the act - once they have stolen all your money you get the treat currently being tested out on Gazans

BOTUS

we now have...

joke plated bores that argue with oils and fuels - if that isn't killing it, time static will
piston rings that are weaker than an Italian suspension bridge
cam chains made from stuff that's not really any more durable than paper pulp (check why we have start stop)
electrical components full of self disintegrating copper
etc.

Ukraine has 90% of the world's titanium - they wanted this for their space rockets after they destroyed our world - hence biden's son set up the mess we have today, with it ready to go from 2015 - unfortunately when they were rigging the 2016 election they didn't realise quite how many American's had already woken up, and Trump accidentally got in - once he agreed with russia not to go round the world murdering everyone for profit (and instead chose to fix 60 years of decline) - they had to get overt in their actions - with most lemmings still happy with their falling standard of living and addicted to the misinformation they consume watching drivel on their tracking devices, it doesn't take too much death and destruction for them to try and get their agenda back on plan...

of course this is all aided by the sick corporations, who for 40 years have been transforming the workforce from clever, skilled people with morals, into halfwits with too little ability to even understand what time of days it is - many end users are starting to see the effects in the products they buy dying whilst still looking like new - but far fewer of the middle classes (on 80 to 150k US$ a year) have yet to understand the mess they are contributing to everyday

KingsoverQueens

how is this diagnosed, and, how to repair, assuming this is the reason?

Arrie

PCV is system that directs pressurized air from crank case to the engine air intake. Even new cars have exhaust gas blow by thru piston rings and these pressurized gases in the crank case need to be let out. Gases are directed with the pcv system to the air intake to burn the oil mist in the gases.

With high mileage engines the blow by gets bigger and it is normal for high mileage engines to burn more oil ant the only good fix is re-building the engine.

But 150000 miles should not mean engine burns lots if oil. I have a 2010 E550 with almist 190000 miles and it does not burn any oil between oil changes that I do every 5000 miles.

The cheap medicine for controlling oil usage is to use thicker oil. I use the recommended Mobil 0W-40 if available. Last time I bought 5W-40, which is also approved by MB.

I do not know MB pcv system but in my older cars it was just a rubber hose with a spring loaded valve that connected crank case to the engine air intake.

BOTUS

the early 221 had the 273 v8 engine, that sort of lasts well except for the coils and the cam chain chain issue on the early ones
latter 221 had the 278 v8, which apparently is an unreliable bag of rubbish

as I eluded too in earlier posts

the time to death is speeding up rapidly - its why the rich people lease it and fiddle the tax man, the super rich for 2 years, less well off, 3 years and the ones who think they are rich for 4 years (but those last ones end up paying a lot in servicing) - most of those will have few issues - then the junk is peddled on to the poor to get them further in debt...


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