Quote:
Originally Posted by CharlieHustleX5
Bringing it to someone familiar with transmissions is a good idea.
I'm sure some could sucessfully clean a valve body and reassemble it, but certain things to inspect might be overlooked. Its not only the fluid paths that need to be cleaned, but check balls should be inspected, valves and springs should be checked, solenoids should be tested, accumulators should be checked and rings replaced, and other sensors/plugs checked.
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 This isn't really a DIY project. While some could do it, there would probably be more that made the situation worse.
I would expect that when cleaning out the valve body, an overhaul kit is utilized that includes all gaskets, check valves, spool valves, etc. A typical ZF kit is shown below.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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