Hi,
I have a 2005 BMW 530i with 175k km and the ZF6HP19 Transmission. Recently as part of regular servicing I changed the transmission filter and replaced the fluid with your ATF BMV.
Immediately after the change and once the transmission is up to temperature, when under moderate to high load I encountered transmission fault errors which when investigated point towards clutch slip (multiple ratio monitoring fault codes). The codes do not occur only with a specific clutch and can be made to appear for any clutch. Depending on driving conditions and gear, the gearbox can be made to slip and thence fault in any clutch A through E.
I'm concerned that this fluid is more "slippery" than the original Lifeguard 6 and hence in an older transmission liable to create clutch slip and thence transmission faults?
Is this something that has been addressed previously?
For information the transmission mechatronic bridge seals were all replaced at the time of the filter / fluid change and the old fluid (approx 60k km old) was not burnt nor was there any sign of unusual particulate matter in the oil indicating excessive wear.
Having almost exclusively used penrite as my preferred oil in my 3 vehicles i'll be honest i'm a little dissappointed!
My intent is to drain and refil with ZF Lifeguard 6 and can advise if this rectifies the issue, although due to upcoming travel will likely not be able to do this until early october.
Although I used all of the oil that I purchased, is there any recourse to receive credit the product? Whilst i cannot provide any scientific evidence that the fault directly relates to the oil change, it seems highly unlikely that multiple recurring transmission slip faults would appear immediately following a change of the transmission oil and not be linked to the oil.
Kind Regards,
Robert