how to change oil filter? - Mercedes-Benz Forum
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#1 (permalink) Old 04-26-2010, 08:28 PM
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how to change oil filter?

As a non-mechanic, I have changed screw on oil filters, but dont understand how mercedes' works. Can anyone explain to me? Or I'll have to let dealer do it.
(W140). I can do the rest with an extractor. Thanks.
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#2 (permalink) Old 04-27-2010, 10:20 AM
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Remove the airfilters, and on the passenger side of the engine near the fender you will see the oil filter canister. Remove the top bolt and pull out. Its rather long, about 6 inches. Bend a piece of coat hanger into a small "J" type hook and insert it into the bolt hole, hook the side , and pull. Flip the small wire up and pull out the oil filter. Replace with new one and reassemble. Most quality oil filters come with a new copper washer for the oil pan drain bolt and new o rings for the filter cap. Apply a light coat of oil to the o rings during reassembly. I don't know the torque value for the bolt, I just tighten it up.
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#3 (permalink) Old 04-27-2010, 10:53 AM
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His car is a s320 with m104 and will have the oil filter on the driver's side near the firewall...it has a black cap you'll need a special MB tool to open it properly but people use generic tools....
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#4 (permalink) Old 04-27-2010, 06:18 PM
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Correct, oil filter on driver's side near firewall. Use Oil filter "Cap B" size, available at WalMart or any auto shop. Works just fine.

Getting there in a W140 is only half the fun....
the return trip is the other half!
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#5 (permalink) Old 04-28-2010, 03:08 AM
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It's a piece of cake to do. Like others have said, get hold of a filter wrench. If you can't find one at your local auto parts store, go a Harley-Davidson or BMW motorcycle dealer and get one there. They're all the same size!

The only other word of advice I can offer is to put paper towels around the area when you remove the cap. The filter will stay attached to it while you pull it out and will almost always drip oil on the engine.

Once you have it out, you can simply pull the filter cartridge off of the cap. If you look at your new filter, you will see one end has a hole and one does not. The end without the hole is the one that goes in the cap. Push it in until it snaps into place. Don't forget to replace the rubber o-ring as well. Then all you have to do is put the cap/filter assembly back in its housing and tighten it back up. I start by screwing down by hand as far as it will go and then torquing to 25 nm.

"It's not about how fast you can go, but how well you can go fast."

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Gone but not forgotten. . .
'97 S420V, Smoke Silver Metallic/Tan, (RIP 22 Oct 2012, 178627 miles) He gave his life to save mine.
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#6 (permalink) Old 04-28-2010, 05:30 AM
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There it is marked in the following picture, but zou need to remove the Air filter like mentioned.

Check this for the whole Procedure.
http://www.benzworld.org/forums/w140...0-got-2-a.html
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Gott sei Dank.
Ich habe eine wunderbare 1996 V-12 Mercedes-Benz S 600 L (W140).
Sie ist brillant-silber und schwarzem Leder von innen.

VIN ist WDB1400571A291571
Sales Bezeichnung S 600 L (1996)
Engine-Nr. 120982 12 000709
Transmission 722621 00 003522
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#7 (permalink) Old 04-28-2010, 09:07 AM
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like drcane mentioned above, your oil filter is located on driver's side near the firewall, next to the brake fluid reservoir. it's a little tight in there, but not too bad. you can buy an cap-style filter wrench at any autoparts store, i think they cost around $5-6, or you can just buy the mb one from your dealer for more than that. if you have a strong grip you might be able to unscrew the filter cap without the use of any tools, and just tighten it with your hands. personally i don't use the wrench, i just tighten with my hands by using a small towel to increase grip. also don't forget to change the filter cap o-ring, the oil filter kit comes with the o-ring. if you are sucking oil than you don't have to worry about replacing drain plug washer, but if draining than replace the copper washer also

p.s. did you ever replace the spark plugs? what did you end up using?
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#8 (permalink) Old 04-28-2010, 04:47 PM
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Quote:
Originally Posted by MBs600v121998 View Post
There it is marked in the following picture, but zou need to remove the Air filter like mentioned.
Sorry MBs600v121998 you are incorrect. Your car is a 600 and his car is a 320 with m104 6 inline....
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#9 (permalink) Old 04-28-2010, 05:08 PM
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yellow arrow in the attached m104 pic (taken from "m104 engine" yahoo image search) points to where oil filter is located.
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#10 (permalink) Old 04-28-2010, 06:36 PM
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Quote:
Originally Posted by tirona View Post
yellow arrow in the attached m104 pic (taken from "m104 engine" yahoo image search) points to where oil filter is located.
Thanks tirona, nice clean engine What do you use? I envy that....
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