S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

560 SEL losing oil

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Old 09-29-2006, 02:04 PM
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560 SEL losing oil

Dear Friends

Have bought a 60,000 Miles,Euro 560 SEL recently.
Travelled approx 1000 Kms within two days and on another occassion 800 Km within two days.

Speed on the first occasion was average 170 Kms/Hour and the second time ,120 Km/H.

On each occasion,the engine oil was reduced by approx. 500 CC upto 1000 CC.Oil used is TOTAL 7000.

There is no evident smoke.

Can you help me pin point the reason for this oil loss.

Mechanic says that it is "evaported" by the engine.

Would appreciate some help

Many Thanks
Evita
Old 10-06-2006, 12:24 AM
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S600 Coupe. 560SEC, E55
Possibly the valve guide seals.
Old 11-11-2006, 09:30 PM
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280SE W116, 500SEL W126
I wonder, has this been sorted?

Sorry for not replying to you PM Evita, I never, ever think to check my PM inbox

I think if it were a valve train issue there would be evident smoke, I've not been witness to evaporating oil so can't comment on that phenomenon

Sounds to me like a plain old oil leak, I would be checking the gasket seals around the engine, including the oil pan and sump plug but, as I've said before...I'm no expert on the matter

Let us know how you got on with the problem...and again, I apologise for not trying to help sooner

Damon
Old 11-12-2006, 08:18 PM
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1987 560SEL, 1987 570SEC
Originally Posted by evita
Dear Friends

Have bought a 60,000 Miles,Euro 560 SEL recently.
Travelled approx 1000 Kms within two days and on another occassion 800 Km within two days.

Speed on the first occasion was average 170 Kms/Hour and the second time ,120 Km/H.

On each occasion,the engine oil was reduced by approx. 500 CC upto 1000 CC.Oil used is TOTAL 7000.

There is no evident smoke.

Can you help me pin point the reason for this oil loss.

Mechanic says that it is "evaported" by the engine.

Would appreciate some help

Many Thanks
Evita
My 560SEC used a quart of oil about every 500 miles, with no evident of smoke. When I replace my valve seals, the oil usage dropped to under a half quart between oil changes. YMMV

PS, "evaporated by the engine" is stupid - get another mechanic, one with an IQ larger than his belt size.
Old 11-16-2006, 03:55 AM
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Dear Friends
Many Thanks
Actually have got an appointment from Mercedes Authorised Repairshop for changing the seals.

Will let youknow teh results

many thanks
evita
Old 11-16-2006, 02:59 PM
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2006 E320 CDi, 2008 3/4 Ton Suburban, 2007 "rice rickshaw" Accord 5 speed
Use conventional engine oil in the 560 SEL

Dear Evita,

Do not put "thin" grade synthetics into this engine. The original seals were not made for synthetics and they leak. It happened to me. Now I am using Castrol GTX diesel oil, 15W40 and the garage floor is drier. Ditto with automatic transmission fluid. Stick with OEM stuff.
Old 11-22-2006, 05:01 AM
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Dear Friend
Thanks for the advice.
Bye
Old 11-28-2006, 01:50 PM
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Mechanic shows the problem

Dear friends
took the 560 to the authorised mechanic and this is what he found out and showed to me ;

the valve seals were ok.But the shaft which the valve seals are placed around it had vibrating movements which allowed oil to seep past the seals into the combustion chamber at the time engine was off.

I am no mechanic and do not know the exact terms!!

Sorry

The small shafts (or typets?) are being changed along with the valve seals .

Will keep you posted further
thanks bye
Old 11-28-2006, 05:53 PM
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2006 E320 CDi, 2008 3/4 Ton Suburban, 2007 "rice rickshaw" Accord 5 speed
Originally Posted by evita
Dear friends
took the 560 to the authorised mechanic and this is what he found out and showed to me ;

the valve seals were ok.But the shaft which the valve seals are placed around it had vibrating movements which allowed oil to seep past the seals into the combustion chamber at the time engine was off.

I am no mechanic and do not know the exact terms!!

Sorry

The small shafts (or typets?) are being changed along with the valve seals .

Will keep you posted further
thanks bye
I hope the car is not leaking now. If the garage floor is wet it has nothing to do with the "tappets" he replaced and your combustion chamber. Hopefully he is not trying to "shaft" you.
Old 11-29-2006, 12:00 AM
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hi ,
actually i never had a leaking engine or "wet floor".
The engine oil was lost through usage.no leakage was ever observed.
however the oil loss was quite extensive,hence , the visit to authorised repairshop
will keep you posted after the car is delivered back.
many thanks
evita
Old 11-29-2006, 06:44 PM
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2006 E320 CDi, 2008 3/4 Ton Suburban, 2007 "rice rickshaw" Accord 5 speed
I misunderstood you

Sorry Evita. I thought your car was dripping oil.

I take back what I said about your mechanic.
Old 12-02-2006, 10:18 AM
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Hi
no offence taken.But thanks for being nice.
Bye
Old 07-09-2007, 03:48 AM
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hey nomad can you please tell me how you made ur grill and where you go t that frony bumper lip? thanx my email is ukteg@hotmail.com
Old 07-13-2007, 01:19 PM
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Originally Posted by evita
hi ,
actually i never had a leaking engine or "wet floor".
The engine oil was lost through usage.no leakage was ever observed.
however the oil loss was quite extensive,hence , the visit to authorised repairshop
will keep you posted after the car is delivered back.
many thanks
evita

I have a 560SEC that I run on Mobil 1 15w-50, and has no oil consumption. I have also used this oil in my 300SE, where it drastically reduced oil consumption.

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