Hello,
New to me W166 ML350 BT, 105k miles.
Purchased it from a used car dealer, when arrived I noticed oil level was at min, unsure of when oil was changed.
Drained oil, split filter open, looked fine. Foolishly didn't measure amount of oil drained.
8 liters of MB 229.52 (was unable to get 229.51) and a genuine filter installed.
Checked level and was near max, shop temperature, engine off for 1 hour (?).
After oil change I drove the vehicle for 100-200 miles while waiting on parts.
When parts arrived, I've done a lot of preventive stuff, including the PCV valve.
Picture of when I removed y-pipe, originally:
Small amount of oil, normal?
Replaced PCV, belt, filters, idler pullies, etc.. to prepare for a long trip.
1000 miles later, checking oil 5 min after engine shut off resulted at min level on dipstick, waited a bit longer and level came up a few mm, below half maybe, hard time getting a good reading.
I decided to top off and set a reference point, I added another liter which placed me at right below max, with engine oil hot (90deg c).
500 miles later (today) I checked the level an hour after the engine has been off, oil temp is 32 deg c and I'm right below the half mark. I thought that while the oil expands when hot, checking an hour later will allow more to drip down to the pan from my last check, and I should have the same level as when I last checked.
Has anyone experienced something similar? Anyone found 9 liters to be more accurate? Any good advice on when to check level for most accurate readings? This oil does expand a lot when hot?
I'm reading horror stories about these engines drinking oil like there's no tomorrow, without external leaks or other obvious things (no mix with coolant, no smoke from exhaust).
I'm getting about 24-5 mpg, with full power and no obvious faults, but this is concerning to me because I think the vehicle is regenatring every 100 - 200 miles, is that normal?
Will appreciate any advice, Thanks.
New to me W166 ML350 BT, 105k miles.
Purchased it from a used car dealer, when arrived I noticed oil level was at min, unsure of when oil was changed.
Drained oil, split filter open, looked fine. Foolishly didn't measure amount of oil drained.
8 liters of MB 229.52 (was unable to get 229.51) and a genuine filter installed.
Checked level and was near max, shop temperature, engine off for 1 hour (?).
After oil change I drove the vehicle for 100-200 miles while waiting on parts.
When parts arrived, I've done a lot of preventive stuff, including the PCV valve.
Picture of when I removed y-pipe, originally:
Small amount of oil, normal?
Replaced PCV, belt, filters, idler pullies, etc.. to prepare for a long trip.
1000 miles later, checking oil 5 min after engine shut off resulted at min level on dipstick, waited a bit longer and level came up a few mm, below half maybe, hard time getting a good reading.
I decided to top off and set a reference point, I added another liter which placed me at right below max, with engine oil hot (90deg c).
500 miles later (today) I checked the level an hour after the engine has been off, oil temp is 32 deg c and I'm right below the half mark. I thought that while the oil expands when hot, checking an hour later will allow more to drip down to the pan from my last check, and I should have the same level as when I last checked.
Has anyone experienced something similar? Anyone found 9 liters to be more accurate? Any good advice on when to check level for most accurate readings? This oil does expand a lot when hot?
I'm reading horror stories about these engines drinking oil like there's no tomorrow, without external leaks or other obvious things (no mix with coolant, no smoke from exhaust).
I'm getting about 24-5 mpg, with full power and no obvious faults, but this is concerning to me because I think the vehicle is regenatring every 100 - 200 miles, is that normal?
Will appreciate any advice, Thanks.
