please help

[hotbarnes]

Come on everyone pick your brains about my smoking a170 cdi could it possibly be pump timing ?. Iam running out of ideas , please help

 

[Aussie Nick]

Barnes , member Aliddle is somewhat very proficient in the petrol version A160 model. I am hoping he might just see your post and comment.

 

[Xtractorfan]

Smoking diesels are a common problem and the causes are many and varied, most common is blocked / obstructed air intake..so change the air filter and check all pipes are clear..and use the genuine MB filter, next check the EGR valve is working..these do have a habit of blocking up, also filling petrol instead of diesel can cause the car to smoke..other drivers dont like telling you they have done it...

 

[hotbarnes]

whats making things worse is that it was not smoking at all before i changed the injectors which i found not too bad a job so i am totally confused ,i have checked the parts you suggested all seem ok

 

[rpe2]

whats making things worse is that it was not smoking at all before i changed the injectors which i found not too bad a job so i am totally confused ,i have checked the parts you suggested all seem ok

Are the injectors the same 'class' as the ones that came out? On the larger CDI engines, they differ, and need programming in the ECU.

 

[hotbarnes]

the injectors were supplied by mb according to vin should they still need to be reprogrammed

 

[television]

the injectors were supplied by mb according to vin should they still need to be reprogrammed

I am sure that white smoke is air in the system, sadly I am not good with diesels,,just give the experts a chance to come on, and they will

 

[dragon]

Come on everyone pick your brains about my smoking a170 cdi could it possibly be pump timing ?. Iam running out of ideas , please help

There is a possibility of valves problem, take it to the Indies or dealer unless you are an expert mechanic to tinkle with the valves and gaps.

 

[hotbarnes]

There is a possibility of valves problem, take it to the Indies or dealer unless you are an expert mechanic to tinkle with the valves and gaps.

ive been repairing cars for 17 years and i am convinced its somthing ive overlooked im going to strip it all down in garage tonight to double check.
BYE,BYE sunday evening

 

[dragon]

ive been repairing cars for 17 years and i am convinced its somthing ive overlooked im going to strip it all down in garage tonight to double check.
BYE,BYE sunday evening

Good luck, happy tinking.

 

[hotbarnes]

"sorted",one copper seal not seated correctly ,we all make mistakes , all fine now

 

[dave.robbo]

One copper seal?! Amazing what little things make big problems!

Well done on getting it fixed..

 

[Ellsy Tanners]

"sorted",one copper seal not seated correctly ,we all make mistakes , all fine now

Hi mate, I replied to your original thread with this possible cause, Glad you got it sorted anyway.

 

[wireman]

Air in the system will cause severe miss firing (if you can get it started), it will run like a pig (on the assumption that pigs dont run smoothly) white smoke is not likley as a result of this.
If this is only since the injectors were changed it in my opinion the injectors are at fault, unless something else was adjusted or replaced at the same time.

If the timing was out it would (depending on which way and how far out) be suffering from poor performance and probably poor starting.

Check with the injectors supplier regarding their need for calibration into the engine management system (ECU).