FAQ Automatic Transmissions

FAQ Automatic Transmissions

Q: How can I identify which ZF automatic transmission is in my car?
A: Located on the transmission is an I.D. plate with a ZF logo. The first line of numbers is the serial number of that transmission. The second line of numbers is the specification number of that transmission. There is also a type of transmission inked onto the I.D. plate (ie. 4HP22 4HP18, etc.).
Q: Where can I purchase a ZF Parts remanufactured ZF automatic transmission?
A: ZF factory remanufactured transmissions are available either through automotive dealerships or through your preferred ZF Parts passenger car transmission distributor.

Q: Where can I purchase Genuine ZF Parts to repair my ZF automatic transmission?
A: Genuiine ZF Parts for ZF automatic passenger car transmissions are available in North America through your preferred ZF Parts passenger car transmission distributor.

Q: Are repair manuals available for ZF automatic transmissions?
A: Repair manuals (based on a complete teardown and re-assembly) and functional descriptions (strictly technical information) are available for most ZF passenger car automatic transmissions. For a complete list of technical literature, please check out our Current Literature section.

Q: Are special tools available for repairs?
A: Some ZF automatic transmissions require special tools. These tools are available through your preferred ZF Parts passenger car transmission distributor.

Q: What type of oil do I need to use in my ZF automatic transmission?
A: Each transmission needs a specific type of transmission fluid to operate properly. The use of incorrect transmission fluid may cause extensive damage to internal parts of the transmission and may bring the transmission right back to your shop. For a complete list of ZF recommended lubricants please refer to the lubrication list.

Q: Can I fill my 5HP30 transmission with ATF Dexron II instead of the oil specified? Why?
A: It is not recommended by ZF to use any lubricant other that those specified (see lubrication list). Use of any lubricant other than those specified by ZF may cause extensive damage to the clutch (friction) plates inside the transmission and the torque converter.

Q: What can I do if I am experiencing a condition with my 5HP30 transmission that feels as if the parking brake is on, or is as if I am starting off in two gears at once and then the transmission suddenly "breaks loose"?
A: This type of problem is generally a valve body problem. ZF has made a reconditioning kit available to the aftermarket through your preferred ZF Parts passenger car transmission distributor. If this condition is not rectified it can cause more serious problems and more costly repairs.

Q: Is there technical assistance available to help me diagnose problems with my ZF automatic transmission not listed here?
A: For technical assistance, please contact your preferred ZF Parts passenger car transmission distributor or call 1-800-660-2269. You can also email your inquiry to ZF Sales and Service

Where Can I Buy Genuine ZF Parts

Last Update: 31.08.2009