[246mick246]

Hi, I'm new to the community ?
I have recently purchased a 2003 S320 (W220) it has the "Black Death" smell in the cab, I fixed this problem, but there is also another fume type smell, I removed the oil cap today whilst engine was running and a lot of smoke/ backpressure was present, also the breather thing on top of the cam cover there was smoke coming out of where the cover clips together (not Seal related), I think this smoke is the smell I can smell inside the car, it seams to be some sort of backpressure issue, I can't understand how the smell is so strong inside the car but hardly smell it under the bonnet or outside the car, could engine elaborate or had any experiences with this? I've checked all the pipes etc for tightness and seams fine, also cars giving out a fair amount of black smoke under acceleration.
Sorry about the long winded post.
Thank you

 

[246mick246]

Sorry it's more like steam rather than smoke

 

[tusabes]

Could be a head gasket leak

Use a head gasket test kit , it's a colored fluid you check using the radiator overflow to check for exhaust gas in the cooling system

 

[Dave2302]

Hi,

Welcome to the forum.

First up, there should be no pressure build up in the Crank Case.

Buy a genuine MB New Breather and fit it, they are notorious for this type of issue on CDI motors.
Regarding the Black Smoke, if breather doesn't cure it we'll worry about that later, have you not heard the saying "No Smoke No Poke" regarding Diesels :wink

I take it, (well for your sake I hope), the Engine is running smoothly at Idle ??

HTH,

Cheers Dave

 

[Astro14]

What does "black death" smell like?

There is a HUGE difference between steam and black smoke...so, I am really struggling to understand what you're describing.