jimsinessex
Senior Member
- Joined
- Aug 4, 2003
- Messages
- 350
- Reaction score
- 1
- Location
- Essex
- Your Mercedes
- 2008 W209 CLK 320CDI Coupe
television said:Hi Jim, the crankcase breather goes into an oil seperator, on the bulk head, inline with the windscreen wiper there is a pipe clamped to bulkhead, there is another pipe coming up from the left hand side over the engine, this pipe goes into a venturi nozle and joins the other pipe. that is the crankcase breathing valve, right in the center of engine on top, lefthand you have a black box with rwo pipes, one going left and the other coming from front, that's the oil seperator,
The reason for the problems is an vacuam issue that follows the cold start with a large number of loads switched on, really the vacuam lines should be replaced along with the crankcase ventilation hose from oil seperator to air cleaner.
Malcolm, the work sheet ref is AF43.10-P-3400AC get MB to run you off a copy. this is specific to your car.
I obtained the worksheet and the pic referring to my car (W208347) shows the pipe coming over the engine right enough, problem is it doesn't exist on my car. I have had the car since new, supplied through normal UK channels (i.e. NOT a grey import) so I know it has not been modded in any way.
ALL the various models on the worksheet seem to have a connection teeing into the vacuum line between the brake servo and the downstream side of the throttle buttefly. that vacuum line on my car is just a straight pipe with no tapping points. The plot thickens! The separator you refer to on top of the cylinder head cover has already been renewed and all associated pipes to that separator and air cleaner plus the very small pipe (not mentioned anywhere so far) from inlet to separator and going to the kompressor body all checked clear.
It looks like the problem is under the inlet manifold somewhere as indicated by "severn" and "tech lee". I am hoping to get the car over a pit soon to investigate further but fear access will be grim!
Thanks to all for their contributions so far.
Jim