Transmission repair manuals 4L30E

Information about transmission 4L30E

This gearbox is really simple in repair and it’s popular among different manufacturers.

This modification of transmission has proven itself as an extremely reliable and easy to use. Simplicity of construction allowed to perform the repair works without problems, and the gearbox didn’t require any maintenance. Change of oil wasn’t needed and exploiting the transmission correctly, it can serve without repairs for up to 300,000 kilometers or more. Subsequently, this automatic transmission has been successfully used with full and rear-wheel drive cars of BMW, Isuzu and Honda. The disadvantage of this modification transmissions is quite cumbersome size, which is in need of repairs, it forced to produce laborious dismantling of the unit.

4L30E Problems

Automatic transmission 4L30E has established itself as a fairly reliable transmission. However, it must be said that hydraulic drive and torque converter had a limited resource. As a rule, after running more than 200.000 kilometers irreversible changes are noticed. In other case you have to repair 4L30E that can cost you a lot of money. The problem is a pump sleeve, that frequently is being broken down.

4L30E Fluid Type and Capacity

You can use Dexron III or Dexron VI fluid.

For example Castrol TransMax D6

Capacity: 8 QTS

Transmission scheme

4L30E scheme

Transmission 4L30 manuals

4L30 diagnostic

4L30E manual

Clutch Work


Parts for Rebuild 4L30E Transmission

Solenoids and Valve Body

Rebuild Kits

Torque Converter

Other Parts



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