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Message: <blockquote data-quote="marktan" data-source="post: 6638" data-attributes="member: 3986"><p>Hi I need some help here.I have a 1990 525i, service regularly.recently i change my transmission oil  because there was some leakaround the gasket.I used the original BMW T oil.A week after the change, i experience a jerk each time i engage to reverse gear.My mechanic say it could be some sticky valve, he ask me to service the gearbox. I am curious why it only happen after the T oil change.it has been 3 weeks now, and there is still the jerking. Have any one with this problem. or anyone has a good mechanic for gearbox problems.thanks <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool    :cool:" loading="lazy" data-shortname=":cool:" /></p></blockquote><p></p>