M271 - oil in connectors? - Page 3 - Mercedes-Benz Forum
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post #21 of 170 (permalink) Old 07-21-2008, 07:56 PM
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Quote:
Originally Posted by ermtpa View Post
I changed mine out over the weekend and these were the parts I needed.

2x - 271 051 00 32 - Expansion Plugs
2x - 010 997 23 48 - Seal Rings
2x - 271-150-27-33 - Isolating wire
2x - 271-051-01-77 - Cam sensor
So...where is the isolation wire goes?
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post #22 of 170 (permalink) Old 07-25-2008, 07:43 PM
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Just so you all know, the cam magnets ARE NOT the cam sensors, the Cam sensors are located on each side of the cylinder head, close to the front of the engine...
Part number 271-051-01-77 is a cam magnet/cam actuator, NOT a sensor, just found out...
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post #23 of 170 (permalink) Old 11-22-2008, 08:07 PM
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$1500.00 and 2 weeks in the shop and now my 230k has 2 new cam position sensors 2 new cam positioners and a new M.E. control Module with wiring harness. Thank God for extended warranty
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post #24 of 170 (permalink) Old 12-03-2008, 05:02 PM
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Hi there !
I disconect the plug from the transmission and i find oil inside .The transmission wont shift ,only in first gear .Anybody can tell me if that is the problem ?
Thanks for the help.
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post #25 of 170 (permalink) Old 12-04-2008, 01:31 PM
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Quote:
Originally Posted by ASDauto View Post
Hi there !
I disconect the plug from the transmission and i find oil inside .The transmission wont shift ,only in first gear .Anybody can tell me if that is the problem ?
Thanks for the help.
That is possibly the seal on the transmission connector. It has probably leaked enough to be low on fluid, and perhaps destroyed the TCU. This is the wrong thread to post in unless you pulled the cam sensor connectors and found oil there.
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post #26 of 170 (permalink) Old 12-07-2008, 07:44 AM
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Thumbs up

Quote:
Originally Posted by zeet View Post
That is possibly the seal on the transmission connector. It has probably leaked enough to be low on fluid, and perhaps destroyed the TCU. This is the wrong thread to post in unless you pulled the cam sensor connectors and found oil there.
The oil in connectors destroyed the TCU and i replaced with new one.$600 the part and Free labor. the car runs fine .Thanks !
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post #27 of 170 (permalink) Old 01-28-2009, 06:06 AM
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ATENCION!!! Averia T√*pica Motores 180K, 200K, 230k

Here you have a lot of info about it, it's the MB spanish forum

The problems concerns M111 and M271.
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post #28 of 170 (permalink) Old 02-22-2009, 06:47 AM
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Thumbs up a little preventive maintenance

I just did this work as I found a little drop of oil in each of the cam magnet connectors on my 2005 C230K with 70K miles on it. You'll need to remove the little cover on the front of the engine. No tools needed, just pop it loose from the rubber bushings. After that, a small external torx socket is required. As mentioned, you'll need:

2x - 271 051 00 32 - Expansion Plugs (called "cover" on mine)
2x - 010 997 23 48 - Seal Rings (just an o-ring)
2x - 271-150-27-33 - Isolating wire (called "starter line" on mine)
2x - 271-051-01-77 - Cam magnet sensor (just called "magnet" on mine)
2x - nylon zip ties (also called tie-wraps) get them anywhere

Also mentioned was autopartspeople.com which I found to have pretty decent prices on factory parts. The first part, the expansion plug (called "cover" on my part bag label) is the rubber plug that goes in the center of the magnet. I installed the new magnets without first putting the new plugs in. Don't do that! It's a little more difficult since you might drop the plugs down into the void. The new plugs did not look like the old plug used on the original part, which confused me for a second. The seal ring is simply the o-ring that goes between the magnet and front of the head. The isolating wire is a short piece of harness that has a male connector on one end and female on the other. Put it between the magnet and existing harness connector to stop future oil from migrating down the wires. You'll need a "zip tie" or "tie-wrap" to secure the new bigger bunch of wire/connector to the two brackets that support the little cover for the front of the engine. To save yourself some money, you might consider leaving the magnets alone, since the new isolating wire will keep oil from damaging the other stuff. You may get a worsening oil leak but you can replace the magnets then. Easy job, less than an hour, have fun! (...and thanks to the previous posters for all your help. made my job so easy)

Last edited by thehoodmeister; 02-22-2009 at 02:27 PM.
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post #29 of 170 (permalink) Old 03-05-2009, 07:17 AM
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i've also had to put 1 quart every 3 months or so, this sucks!!!!!!!
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post #30 of 170 (permalink) Old 03-12-2009, 10:12 AM
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I'm about to do this myself but is this totally covered under extended warranty or is it just a matter of if they want to cover it or not? Will the dealer accept 3rd party extended warranty?
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