First Oil Change after Dealership - They put it wrong oil amount
12-17-2018, 04:34 AM
#11
AudiWorld Super User
How many decimal point is the exact amount? Is 7.21 ok or is that too much and do I need to add oil if I am down to 7.19 liter?. In the old days, we just fill the oil until it is full on the dip stick and check the oil in a day or so to top it off if needed. I guess it must be great to have the time to put in the exact amount, down to the decimal point. 
12-17-2018, 04:48 AM
#12
AudiWorld Senior Member
Most service centers don’t “drain” the oil — where you put a catch mechanism under the oil pan, remove the drain plug / boltt and gravity does the rest.
They pull the plug from the (missing) dipstick tube, insert a suction device and suck out the used oil. Depending on the skills and professionalism of the particular technician performing this service, said tech may be rushed or the egress device shifted — any number of reasons — and there may be an unknown “small” quantity of old oil left in the sump.
And this is most likely why there is not an “exact” replacement quantity specified.
Or not — YMMV!
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
12-17-2018, 06:55 AM
#13
AudiWorld Senior Member
I wonder if 'sucking' the oil out instead of draining it works as well in getting the gunk / sediment that settles to the bottom out; especially if the suction tube is not in the bottom of the sump. Actually, if the suction tube is in the 'bottom', it won't be able to suck anything out. I'm thinking the old method of draining the oil is better than this newer method....
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
12-17-2018, 06:58 AM
#14
AudiWorld Member
Thread Starter
I wonder if 'sucking' the oil out instead of draining it works as well in getting the gunk / sediment that settles to the bottom out; especially if the suction tube is not in the bottom of the sump. Actually, if the suction tube is in the 'bottom', it won't be able to suck anything out. I'm thinking the old method of draining the oil is better than this newer method....
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
12-17-2018, 07:11 AM
#15
AudiWorld Member
Don't understand the comment about modern engines being able to handle some gunk, I would think with close tolerances and turbos the opposite would be true, but I am neither a mechanic or an engineer!
12-17-2018, 08:08 AM
#16
AudiWorld Senior Member
I wonder if 'sucking' the oil out instead of draining it works as well in getting the gunk / sediment that settles to the bottom out; especially if the suction tube is not in the bottom of the sump. Actually, if the suction tube is in the 'bottom', it won't be able to suck anything out. I'm thinking the old method of draining the oil is better than this newer method....
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
Heavy Sigh... Monday's suck, especially while waiting for my car to arrive....
12-17-2018, 08:13 AM
#17
AudiWorld Senior Member
Actually, after looking at the oil pan, it looks like there is a little well right where the suction tube would come down into the pan. So it looks like that is why the dealers use this method for changing the oil, and by using the drain plug method there would still be a lot of oil in that "pool" in the pan where the suction tube would go to suck out all of the old oil.
12-17-2018, 10:05 AM
#19
AudiWorld Member
Thread Starter
They designed it around a top drain, that's why the oil filter is also on the top of the engine, overall a much cleaner and faster process with the right tools. The drain plug for these cars is a small plastic piece that you need to replace if you're draining the oil from the bottom.
12-17-2018, 10:40 AM
#20
AudiWorld Super User
They designed it around a top drain, that's why the oil filter is also on the top of the engine, overall a much cleaner and faster process with the right tools. The drain plug for these cars is a small plastic piece that you need to replace if you're draining the oil from the bottom.