I have an after market warranty that up until now has covered anything wrong with the Benz. I'm told the check engine light on is due to a cracked wiring harness in front of the engine near the valve adjuster.
MB suggested replacing the valve adjuster as well as the harness in case there was damage to the adjuster from broken plastic. Since it's not covered by my warranty, I'd like to do it myself. Anyone have experience with these parts and/or have part numbers so I can order them? Sorry I don't know more as the car is still in the shop having the tail light recall done! Just trying to get a head start.
Thanks for the continued support
suggest replacement of engine wiring harness and cam timing adjuster for $1452.86 USD. I'm going to pull the front cap to the engine and take a look around. Is that where the cam sensor (magnet) is? Doing a search, I've pulled some great information on these codes especially P0410 http://www.mercedestechstore.com/pdf...2004-01-01.pdf
I'll dig around and get back to you. Also, would the wiring harness be under the same gray cover?
Suggest you look very carefully at the electrical connector for the Cam Adjuster Magnet for any sign of oil......this seems to be a fairly common problem with the M111 engine with expensive consequences.....................
Oil can apparently track down the loom and end up at the ECU
The problem is so common that there is a short wiring extension available which blocks the flow of oil...............apparently MB has supplied thousands of these wiring mods, but I am yet to locate a TSB for the problem........ alldata subscription required.........anyone
If this turns out to be your problem I can post some more info & links............
The cam electromagnet is made in 2 halves. They are spot welded together. When they do that an O ring is squashed between the inner join.
Sadly it works its way out over time (bad design?) and oil enters the electrmagnet void.
After closer inspection, the clips on the side of the electrical connector for the Cam Adjuster Magnet were broken off but there is still a very tight connection to the terminals. I don't think it's a loose connection here causing the P1519 so maybe the oil has fouled the device. There was evidence of some oil on the connector but not much and the connector points up at such an angle that I can't see how anything fluid could travel down the line. I've cleaned the connection. Do you have a part # for the electro mag and a place to get it? Can I just clean it?
I also discovered a broken, plastic vacuum line for the secondary injector. This would be the cause of the P0410. The break is in the bend. I've used some wire shrink tubing and electrical tape as a temporary fix while I head to the auto parts store for a rubber tube connector.
I've reset the computer to see what comes up while I'm out.
Still not sure what is causing the P0105.
I'll report back. Thanks as always
Last edited by cocktailsfirst : 03-01-2007 at 11:33 AM.
There was evidence of some oil on the connector but not much and the connector points up at such an angle that I can't see how anything fluid could travel down the line.
I guess the air flow under the cover could force the oil into the loom......oil had tracked down to the face of the motor to the connector to the supercharger in my case.......but after a good clean has only shown as a moist electrical connection after 6 months (must have been a slow leak for a long time)
The quote I got from MB to fix a small oil leak at the electrical connector included the Cam Adj Magnet and the ant-oil wiring mod.....called a 'Starter Line'
STARTER LINE # 271 150 27 33
Cam Adj Magnet #119 051 00 77
...........so they considered it wise to put the loom mod in as well as the new Magnet for just a moist connection
.............on one forum I have read that over 3500 of these anti-oil 'Starter Lines' have been supplied and it is an 'in stock' item at my local MB Dealer
When replacing the Magnet it is apparently important not to use a silcone containing sealant.....can clog the cam adjuster
MB Flange Sealer #002 989 00 20 is apparently what the MB Techs use........but Hylomar has been sugested as a much cheaper alternative
I'm going to purchase one of these 'Starter Lines' when I'm sure the connectors are compatible....and post more details and pics..............
Do you have a part # for the electro mag and a place to get it? Can I just clean it?
Mine is weeping oil as well. Hasn't gotten onto the electrical connector or traveled the loom (yet) nor thrown codes. Guess I caught it early. Anyway, here's a link to a place that sells them. Yours came up a little more than the one for my 2001 (I paid $46).
Broken wiring harness near valve control 
Linear Mode
