Smoking W639

[Kakitu]

Good Year and Happy New Year. My car is smoking black thick smoke. The engine is a M646. I recently sorted compression issues with the nozzles and that's when it started. Any advice

 

[DSM10000]

Welcome.

Unsure what you mean by "compression issues with the nozzles"?

Did you have the injectors repaired or replaced? Black smoke suggests that the fuel to air ratio is wrong and too much fuel is being injected.

 

[Kakitu]

Welcome.

Unsure what you mean by "compression issues with the nozzles"?

Did you have the injectors repaired or replace

Welcome.

Unsure what you mean by "compression issues with the nozzles"?

Did you have the injectors repaired or replaced?

The mechanic opened the top cover and poured water. The water was jumping vigorously and he said the nozzles aren't sitting well hence he repaired and I believe he changed the copper washers.

 

[DSM10000]

The mechanic opened the top cover and poured water. The water was jumping vigorously and he said the nozzles aren't sitting well hence he repaired and I believe he changed the copper washers.

So you had leaking injectors.
Not uncommon.

Were the injectors repaired or replaced?

 

[Kakitu]

So you had leaking injectors.
Not uncommon.

Were the injectors repaired or replaced?

They were fixed. I didn't replace them.

 

[DSM10000]

They were fixed. I didn't replace them.

OK, what do you mean by "fixed"?

Were they stripped down and repaired?

 

[Kakitu]

OK, what do you mean by "fixed"?

Were they stripped down and repaired?

Yes they were stripped and repaired.

 

[DSM10000]

Yes they were stripped and repaired.

Then they have either been repaired incorrectly or they need calibrating as it seems as if they are over injecting.

 

[Kakitu]

Then they have either been repaired incorrectly or they need calibrating as it seems as if they are over injecting.

Makes alot of sense.
I will ask the specialist to check and then update you. On the 6th

 

[DSM10000]

Makes alot of sense.
I will ask the specialist to check and then update you. On the 6th

Good luck