Oil change question
For example, you have the last post about not being able to suction the oil out of the 4matic. If someone with the right info didn't say anything to correct this others looking at this thread in the future would get the wrong idea and actually believe that they have to jack up their car, remove the skid plate, and go through the trouble of removing the drain plug. I don't know of any dealer that does this for any (modern?) MB that they service.
Last edited by acr2001; Mar 11, 2009 at 06:56 PM.

The front axle does go through the oil pan on all 4-matics I know but I cannot see how it would make oil draining or siphoning different because the axle tube is way above the oil pan bottom. It should not divide the pan into sections and if it did, wouldn't it affect draining too?
I did not find a good picture of the oil pan on a 4-Matic W204 that I would dare to post, attached a generic picture that should show the oil pan bottom being pretty unaffected about the front axle passing through the pan. The dipstick tube should go to the lowest postion of the pan, about the same for the drain plug.
One odd thing about this engine's dip-stick, since new:
When you first remove the dipstick to check oil level, even after sitting overnite, there will be no oil on the plastic metered end!. Once you pull it out and recheck it, it shows the true level.
This was alarming at 1st, but I figured that this meant the outer tube extended down below the bottom of the dip stick (every other engine I worked on or saw at a bone yard had a longer dip stick). The 'dry' dip stick was, imho, caused by pcv vacuum pulling slight amount of air down along the dip stick, past the upper seal, and displacing the oil at the bottom of the outer tube with air.
If this does not happen on rwd W204 v6's, then the stick extends below the outer tube (no axle to manuver around).
, or MB has another opening they siphon from on the W204 4Matic.
Last edited by kevink2; Mar 11, 2009 at 09:39 PM.
- Should you be dumb enough to remove the drain plug please replace the plug with a new one. Plugs use microencapsulation technology for proper seal & cannot be reused
Glyn,I would be grateful if you could explain the above term in relation to sump plugs.Looks in Google to be a food technology term.
I must be one of the dumb old *******s who continue to roll under the sump & pull out the plug whilst inspecting for any problems on the underneath side of the engine .The C 220 CDI sump plug seems to be a straight forward old tech steel threaded plug. I have had it out twice now & no leaks. John.
Warm to cold should be fine unless you're in an Arctic research station.
Generally, for draining oil, drain first via the drain plug, then remove the old filter (I've honestly never used a pump/extractor, but I hear they work fine). Then once nothing more is draining out, Put back in the drain plug, and put on the new filter. I haven't looked at what filter these take yet, but I'm assuming a normal, modern filter. Assuming that, make sure to wipe some oil around the rubber seal of the filter before screwing it on. At that point, refill with the proper amount and grade of oil.
For example, www.buymbparts.com where I bought six. There are others.

- Should you be dumb enough to remove the drain plug please replace the plug with a new one. Plugs use microencapsulation technology for proper seal & cannot be reused
Glyn,I would be grateful if you could explain the above term in relation to sump plugs.Looks in Google to be a food technology term.
I must be one of the dumb old *******s who continue to roll under the sump & pull out the plug whilst inspecting for any problems on the underneath side of the engine .The C 220 CDI sump plug seems to be a straight forward old tech steel threaded plug. I have had it out twice now & no leaks. John.
A bit of disinformation floating the forums is that Benz undercut the threads on their plugs which leads to damage of the sump threads & thus leaks. This is not so.
The Best of Mercedes & AMG

For example, www.buymbparts.com where I bought six. There are others.

As repackaged by Bosch:

As repackaged by K&N:

Apart from not filtering properly for 13,000 miles - this is what can happen using cheap paper filters.
https://mbworld.org/forums/c-class-w...at+this+filter
I am sure I will be specifying the Mann for my first change.
I'm joining in this thread a bit late - but I enjoyed reading all the previous posts..
I always use the drain plug method when oil changing on my CLK, basically because I think it's a good idea once a year to get under my baby - and get those covers off - and have a good look around. That's what 'taking an interest' in your car is all about, even if you get a bit grubby now and then...
Glyn - I took a look at Llandudno beach and others last year on a holiday to SA. Great beaches there. Still having those power cuts?

I'm joining in this thread a bit late - but I enjoyed reading all the previous posts..
I always use the drain plug method when oil changing on my CLK, basically because I think it's a good idea once a year to get under my baby - and get those covers off - and have a good look around. That's what 'taking an interest' in your car is all about, even if you get a bit grubby now and then...
Glyn - I took a look at Llandudno beach and others last year on a holiday to SA. Great beaches there. Still having those power cuts?
Did they have power cuts, nothing when I had a chance to visit Cape Town. Was lucky to see the cloud above the Table Mountain.
I guess it does not mean I would likely win a lottery. Never been to Africa before or after but was lucky to be able to spend half a day (out of a week of hard work) driving around the peninsula. A lovely place really.

I'm joining in this thread a bit late - but I enjoyed reading all the previous posts..
I always use the drain plug method when oil changing on my CLK, basically because I think it's a good idea once a year to get under my baby - and get those covers off - and have a good look around. That's what 'taking an interest' in your car is all about, even if you get a bit grubby now and then...
Glyn - I took a look at Llandudno beach and others last year on a holiday to SA. Great beaches there. Still having those power cuts?

I guess it does not mean I would likely win a lottery. Never been to Africa before or after but was lucky to be able to spend half a day (out of a week of hard work) driving around the peninsula. A lovely place really.A bit of disinformation floating the forums is that Benz undercut the threads on their plugs which leads to damage of the sump threads & thus leaks. This is not so.
Thank you for the information. It is appreciated.A good thing to keep in mind. I have used the same drain plug in cars for 15 or so years but they do use a copper washer as the seal which is replaced regularly instead of relying on the threads to seal. I did notice that on my MB plug there was originally a coating on the threads.
Five bucks is five bucks especially if you have a Scottish ancestry .So long as the thread is not damaged I will consider continuing to use the same plug with a little teflon tape .
Description
PTFE thread seal tape is an ideal seal material for pipe fitting, which has obtained the USE UL certificate and is widely applied in
industrial and civil-construction, machinery, chemistry, and space navigation, especially in drainage systems, and are characteristics of thread sealing, insulation, anti-corrosion, anti-aging, using in oxidizing agent for a long term.
Main technical indexes:
Heat resistance: +370 Celsius Degree
Cold resistance: -190 Celsius Degree
High pressure resistance: Up to 30 bars
Tensile strength: > 8N / mm2
Percentage elongation: >25%
Main dimension indexes:
Width: 12mm - 25mm
Length: 5mtr - 30mtr
Thickness: 0.075mm - 0.2mm
Density: 0.30 g/cm3 - 1.2 g/cm3

Thank you for the information. It is appreciated.A good thing to keep in mind. I have used the same drain plug in cars for 15 or so years but they do use a copper washer as the seal which is replaced regularly instead of relying on the threads to seal. I did notice that on my MB plug there was originally a coating on the threads.
Five bucks is five bucks especially if you have a Scottish ancestry .So long as the thread is not damaged I will consider continuing to use the same plug with a little teflon tape .
Description
PTFE thread seal tape is an ideal seal material for pipe fitting, which has obtained the USE UL certificate and is widely applied in
industrial and civil-construction, machinery, chemistry, and space navigation, especially in drainage systems, and are characteristics of thread sealing, insulation, anti-corrosion, anti-aging, using in oxidizing agent for a long term.
Main technical indexes:
Heat resistance: +370 Celsius Degree
Cold resistance: -190 Celsius Degree
High pressure resistance: Up to 30 bars
Tensile strength: > 8N / mm2
Percentage elongation: >25%
Main dimension indexes:
Width: 12mm - 25mm
Length: 5mtr - 30mtr
Thickness: 0.075mm - 0.2mm
Density: 0.30 g/cm3 - 1.2 g/cm3




How much did you pay for your Benz in Aus & you are worried about 5 bucks or whatever 

I thought we were ripped off for Benzes & Beemers in RSA until I lived in Aus - Wollstonecraft Bay - Sydney - I drove a Holden Berlina - good for pulling out tree stumps!
Last edited by Glyn M Ruck; Mar 12, 2009 at 04:34 PM.




How much did you pay for your Benz in Aus & you are worried about 5 bucks or whatever 

I thought we were ripped off for Benzes & Beemers in RSA until I lived in Aus - Wollstonecraft Bay - Sydney - I drove a Holden Berlina - good for pulling out tree stumps!


If a little teflon tape on the outside of a thread in good condition will do the job why spend 5 bucks.The plug is built like "The OX" (who was brought up when beef was cheap) & will never fall out.I rather put the money into earlier than scheduled lub services ect.



