hello from ireland!!!!proud driver of w126,s for 12 years but this paticular one is fooling me.....this problem is not noticable to some people.... it is a mild complaint so far....!!!!!
...i behaves like driving into/out of strong wind or a binding brake syndrome
i also does what others on forum mentioned ..if you floor throttle then leave back it goes faster/better!!!!!.....irregular gear changing also due to engine power output varying
... checked the usual, vacuam pipes ,new fuel filter,cap and rotor ,played with mixture....found perished base to mixture control unit and repaced but ...... i have missed some thing, to me i still think its mixture problem somewhere
all ye fellow mb guys give us your views
thanks in anticipatation!!!!!!!!!!!!!!!!!!!!