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Thanks for choosing Just Answer . I'm Wolfgang here to help!!
I am confident we can resolve your problem together. Pleaseunderstand that I don't know your skill level. In most cases when you have a problemwith the way the vehicle performs, specialized tooling is required to acquire computerdata/information or engine testing results. We didn’t build these complicated vehicles; wejust diagnose and fix them. Also understand that I can't see, smell, hear, or touch thevehicle either, so it may take a few replies to get to satisfactory results. Note there may be an issue where the complexity of the issue will require a Premium Service. This service will be an addition to the normal question cost. Usually it does not come down to this but keep in mind!! I am also going to direct you with the fastest, easiest and most common things to check first. Please bepatient and permit me to do what I do best.I also try to give all of the information you may need, expecting a “positive rating” inreturn. I will also continue assisting you after you have rated me, if necessary. If thereis any reason I cannot get a positive rating, please let me know why “in advance”, so Ican go another direction for you. I am sorry you’re having this problem; I’ll help youthrough it.Below is my first answer or request for more information. If you do not understand it, or you need more information from me, or need me to go in more detail.
I do need some more info please
ok the code do you have the fault code # ? either the 5 digit sae # pr the Pxxxx # will do
while you answer this question , Let me get the factory information on your vehicle
ok when was the last time the timing belt was replaced?
did you do the belt with the special tools and then fine timed it with VAG com?
ok did you inspect the fuse for the glow plugs itself? the fuse is a strip fuse. it tends to deteriorate and have contact issue .
i wonder that the intake is clogged with carbon build up causing a breathing issue !!
under stand that but think about this ... at cold start up yes you have glow plug operation to heat the cylinder for the fuel for ignition. but you need air and a restriction especially when cold will cause a real hard start. once running you have the heat and air but while running much easier to ignite than on slow crank start .. that has to be really considered.
thanks for the extra info !! it helps to know what has been done to the vehicle to narrow the issue!!
what is the temps in your area ?
OK with this there is diagnosis pinpoint needed and will take a premuim service to assist you with this . please premuim service offer .