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It's a friend's experience which I find the outcome quite worthy of sharing in BMWCM. Draw your own conclusions.The car is a 520 E39 2003 which uses ZF 5HP19 A/T.1st ATF oil change at a local specialist shop with Esso lifetime fluid (ATF) and ATF filter+gasket purchased from spare part shop in KL. The magnet on the ATF pan showed no visible debris by the way. But soon after noise started. Read below."Unfortunately, the non-original filter caused problem to the A/T – loud whining (high-pitch) noise when cold and when flooring the accelerator. From BMW forums, this seems to be a well known problem due to collapse of the non-original filter elements during high pressure."Interestingly, the local specialist shop said that nobody who has done the same ATF change has ever come back with similar issue.
A 2nd ATF change was done soon after the 1st change. This time with original ATF filter (made by Filtran) + gasket purchased from Auto Bavaria. Pictures of the ATF fiter are attached. The noise was gone.Another 2 interesting findings related to the ATF change.
A 2nd ATF change was done soon after the 1st change. This time with original ATF filter (made by Filtran) + gasket purchased from Auto Bavaria. Pictures of the ATF fiter are attached. The noise was gone.Another 2 interesting findings related to the ATF change.
- I need to read up on the Bentley manual also to see if it's applicable on my E34 or not. "... workers don’t follow BMW procedures. For example, putting glue between gasket and oil pan, then during the next oil change need to grind the pan edges to remove the glue. That’s not the right procedure. Actually there’s no need to use the glue at all so that gasket can come out freely after the pan is dropped."
- Local ZF recommendation via an email is that the ZF ATF (Lifeguard Fluid 5) be changed every 90,000 km from a technical stand point in order to keep the transmission running optimumly.