Microchip tuning represents adjusting or updating an erasable programmable read only ram microchip in an automobiles or different vehicles electric control unit ecu to reach outstanding efficiency, regardless of whether it be more force, better emission, or perhaps much better. Some owners experience incidences on a daily basis and others may have weeks of trouble free operation between incidents. The transmission ecu software was updated for the new solenoid valve because the older software versions are not compatible with the new borg warner valves. Al4 automatic transmission the aim of this document is to give a brief description of the design and operation of the electronically managed al4 automatic transmission which offers precise, adaptive control as well as excellent gear changing quality. This approval is given by the regional headquarters for france. The following fault code is logged in the transmission ecu. Al4 automatic transmission pressure regulation fault i used to have a problem with my earlier peugeot not 308 al4 transmission. Al4 and dp0 solution that will cost you less and will run for years without problems. Replacing the whole al4 transmission or its ecu must be subject to prior approval. In most cases the transmission will go into the downgraded mode. Can i do this with the lexia\diagbox my self or is it a dealer only job. Page 1 of 34 important peugeot al4 gearbox advice posted in peugeot forum.
Hope these advice and tips below will help in taking care and extending the life or the al4. Al4 automatic gearbox citroen c3 oil filling and drain. Borg warner solenoid valve citroen c3 al4 gear box downloading ecu. Dp0 and al4 automatic gearbox fast and easy repair. Symptoms flashing of the snow or sports light or automatic transmission fault on display. The point of sale fills in the request for replacement approval copy. Al4 pressure regulation fault creative technologist. Hi all,just would like to share some important information on the al4 gearbox especially to those who are new to the peugeot al4 gearbox.