eddies Posted July 24, 2009 Report Posted July 24, 2009 Does anyone on the forum have a contact to offer Technical Advice on an Auto gearbox problem. The box was replaced with a 2nd hand unit which worked well initially......then it started grating everytime you stopped the car or drove at low speed......as if it was trying to engage more than one gear. Once you were moving and up the gears all was OK.The valve body was swopped out for the old valve body and there was no grating but the gears slipped as if there was not enough pressure in the system to activate gear band brakes. I suspect that there is too little pressure / worn assy. in the old valve pump body....and perhaps to much pressure or cross talk between the valves in the newer valve body.... I know this is very technical - but there is probably someone on this forum who has the tech knowledge to assist with diagnosis of the problem. THANKS IN ADVANCE.......Eddie Quote
eddies Posted August 4, 2009 Author Report Posted August 4, 2009 The grating problem was caused by a problem with the Lock Up circuit in the Valve Body. The VB was repaired by Robbs Garage in the Wirral near Liverpool.....re-installed valve and reset the gearbox with VAG-COM ....all seems to be ok now. Quote
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