Black smoke, should I be worried

waldershelf · May 26, 2012

I have noticed recently that when I start my 300tdi 90 I get a puff of black smoke. It happens hot or cold and clears immediately.

I'm sure it didn't do it when I bought it in Dec Dec 2010.

Starting is not a problem it fires as soon as the starter is turned and is returning good (33+) MPG figures.

Should I be worried or am I just being paranoid?

craigyb · May 26, 2012

Don't know what it is but my 200 does the same

storm99 · May 26, 2012

Its normal, it overfuels on start up, hence the black smoke.

waldershelf · Jul 12, 2012

Bump
Bump
Bump

It's getting worse, there's now a big black cloud when starting. It still starts first time hot or cold and the smoke clears immediately. Performance is unaffected.

Can anyone shed any light on why this is happening?

fanatic · Jul 12, 2012

don't panic it is just excess fuel on start up

waldershelf · Jul 13, 2012

fanatic said:
don't panic it is just excess fuel on start up

I guess I sort of knew that, but I want to understand what is happening and why? What's changed to make it happen?

biolandy · Jul 17, 2012

air filter blocking?

V8jon · Jul 17, 2012

Blocked air filter,worn injector,overdue a service or it could just be its a landy,my disco does it,always has always will.

Black smoke, should I be worried

waldershelf

Well-Known Member

craigyb

New Member

storm99

Spreading Joy & Harmony

waldershelf

Well-Known Member

fanatic

RESPECT IS EARNED, BEATINGS ARE FREE ;-)

waldershelf

Well-Known Member

biolandy

Well-Known Member

V8jon

Well-Known Member

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