Smoke after starting cold

have the injectors service at a professional diesel specialist shop

Blue smoke (how many miles on engine, 50k or 500K???????
to some this means, burning oil, others steam
it that blue smoke lingers a long time that is oil burning
and smells just like oil burning.
and means 2 things,
1: engine burns oil.
2: if car had autotmatic trans the vacuum modulator love fail
and suck ATF fluid to the intake plenum and burn it, and bingo burning oil like mad.
3: PCV valve packed solid,and forces engine to leak oil or burn oil. or both. this is a 50k miles service point, skipping this?
4: gas in the oil making it thin and not sneaks past valve stems.
does oil change cure this.>?

now engines.
worn out engines smoke. (burn oil)
as do bad valve guides and seals.
and bad piston rings.
100 years same story, and miles matter. History on engine too.
matters.

this could be a number of things .do you service your car on a regular basis ? is the car a high miler ? .sounds like a turbo problem .or engine management unit problem ..you will need to take it to an authorised dealer {if still in warranty}.and if so they should sort it for you free ..if not then dealer or good garage ..it doesn't sound like a DIY job ..if the car has done many miles the a little smoke in ;;;normal ;; on a diesel .but if the miles are low the you may have an expensive problem ..if its your turbo then concider a refurbish one as a new one witl cost around 600 pounds !

General rules of thumb: Low speed engine on acceleration with smoke in the exhaust plume = worn piston rings High speed engine accelerating (spooled up turbo) with smoke = oil form turbo bearing and/or piston rings Engine on over run (coasting down, foot off the gas) with smoke = oil from valve guides. VW/Audi make good engines with tight tolerances so none of the above should apply at 62K miles; just make sure that the oil (the right oil) and oil filter are changed regularly.

first thing to do is put a can of redexe additive in the tank(full can to 1/2 tank)this may blow out any carbon buildup on the injectors etc.
once done, if no improvement,then get back to us.

check your glow plug relay! located on the right side head

i had this problem and thought the fuel filter oil filter needed replacing so i have just had a service done but problem is still there but not as bad. been told it could be the AGR valve or a split pipe going to it which recuirculates unused fuel back to burn again. therefore unspent fuel is coming out of the exhaust causing the black smoke. i am still looking for the answer aswell, hope this helps.

may be intake manifold leak also check fuel injectors they may be clogged

I don't drive a Ford but I drive an International and white smoke on start up means the engine is too cold to properly burn the fuel. Your black oil or soot is unburnt fuel. You should look at your engine's preheat system for a malfunction.

Is the check engine light on? Any more specific info like year, make, model, what color the smoke is, how many miles, etc........ This could help to narrow down the problem other than the smoke which all diesels do with quick acceleration. You might get a quicker answer if you are more detailed!