GLK Owner from Germany
Interesting thread - and i might be able to shed some light on the dealers quotes of "everything is now sorted, dont worry"!!
My GLK 220 first failed on about 2 weeks ago, luckily I was stationary at traffic lights, and was able to chudder round the corner and officially break down in a bus stop!! 2 hours later, the recovery truck arrived, with a chuckling recovery man who proceeded to inform me that I was the 7th stranded merc driver of the day....incidentally all had the deisel 220 engined!!
The car was repaired 2 days later, however, as the service engineer was driving to my home, it broke down again!! literally hours after being repaired. I received a call saying that I am likely to be without the GLK for upto 6 weeks. (Unluckily for me, i've been blessed with a replacement car that it an A class!!! - a bit of a difference)
Anyway, some collegues have been calling the MB service depo for me (I cant speak german) and they have been informed (today - 1/12/09) that there is still no official solution (other than replacing the injectors like for like). I am now just attempting to negotiate a more ideal long term replacement car (hopefully the 350 GLK!, but anything is an improvemtn on the A class)
Based on what i've read, discussion my collegue has had with MB, we could in it for the long haul - especially considering the number of german taxis that are likely to receive priority repairs (due to loss of earnings claims I expect!!).
I'll keep the forum posted on my progress and any info from Deutscheland!