renault12ts
MB Club Veteran
- Joined
- Mar 5, 2009
- Messages
- 16,671
- Car
- 2005 W215 CL500.
Does anyone know whether the dipstick tube reaches the very bottom of the sump, in mine or any other MB? TIA.
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No it doesn't and it is also a very specific length depending on the engine model.
Never seen a dipstick tube in any motor that went right to the bottom of the sump. Normally a couple or three inches of the bottom I would think,if it went to the bottom you wouldn't be able to read it.
it can be sucked out, if you insert a tube into the dipping tube
Well I am assuming you are using your pump here hence the question? What I do is (I am sure what you do) get the oil up to running temp then with the car sitting "nose up" if the dipstick tube is at the firewall end. Then push the extractor tube in till it hits the bottom of the sump, then suck away. When it is empty in the extractor pipes. I wait 5 minutes then have another go. This hopefully catches any oil that has drained down through the galleries. If the dip stick tube is at the nose end then I park nose down, then suck.
I just did both my AMG and my C240 this way and both yielded almost the book amount in a measured container. I also check with the new oil in, using the onboard computer when hot and and an ebay dipstick when cold. Never failed.
Yep, this is what I do...I was just curious as to whether the dipstick tube went right to the bottom. It seems it does.
A constant debate. However most garages now suck it out and some new cars have no sump plug. The belief is that regular scheduled changes using the correct fluids will happily be sucked without leaving any deposits either more or less than draining. You also stay clean and upright. Sent from my iPhone using MBClub UKStMarks said:Am I missing some advantage to the suction method, other than time.? Fwiw, when changing oil I like to get my engine nice & warm (ideally having been thrown around on my drive home from work) then add an engine flush additive for a few minutes, before stopping the engine & draining the oil from the sump plug. I leave the drain pan under for a good long time with the oil filter removed & the vehicle orientated to ensure that the sump drain point is at the very lowest point. My thinking is that I want as much as possible of the detritus created by internal frictions etc removed from my lubrication system. I would have expected that the suction approach would leave the largest proportion of the contaminants, as being heavier than oil they will have readily settled to the bottom of the sump & out of the reach of the suction pump.???
Am I missing some advantage to the suction method, other than time.?
Fwiw, when changing oil I like to get my engine nice & warm (ideally having been thrown around on my drive home from work) then add an engine flush additive for a few minutes, before stopping the engine & draining the oil from the sump plug.
I leave the drain pan under for a good long time with the oil filter removed & the vehicle orientated to ensure that the sump drain point is at the very lowest point.
My thinking is that I want as much as possible of the detritus created by internal frictions etc removed from my lubrication system.
I would have expected that the suction approach would leave the largest proportion of the contaminants, as being heavier than oil they will have readily settled to the bottom of the sump & out of the reach of the suction pump.???
My thinking is that I want as much as possible of the detritus created by internal frictions etc removed from my lubrication system.
I would have expected that the suction approach would leave the largest proportion of the contaminants, as being heavier than oil they will have readily settled to the bottom of the sump & out of the reach of the suction pump.???
Correct, and I have a pump for just that.
But this guy said the US garages attach a tube to the top of the dipstick tube, relying on the fact it goes to the bottom.
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