Filter and oil pan gasket to service the GM 4L30E (AR25/AR35) behind BMW E34, E36, and E39 sixes, OE 24111218899 and 96015432.
This kit is for the BMW owner with a four-speed automatic E36 318i, 323i, 325i or 328i, an E34 525i, or a Z3, who is chasing a late or sloppy shift, or who wants the old fluid out before it causes one. It contains the transmission filter and the oil pan gasket for the GM Hydra-matic 4L30E, the four-speed BMW labels AR25 or AR35. OE references are 24111218899 and 96015432. The filter neck has a 53 mm (2.09 in) opening where it presses into the valve body.
GM built the 4L30E in Strasbourg, France, for longitudinal rear-drive cars like these BMWs, behind engines from 1.6 L to 4.1 L. Its electronic controls lean on adaptive pressure, with altitude and temperature compensation and limp-home protection, all fed by the same pump. That pump draws through this filter from the pan. GM lists a dry fill of 6.4 L (about 7 qt) with the 245 mm converter, so a pan drop only replaces part of that. The filter keeps clutch and band material from cycling back into the valve body, where small passages and the pressure control solenoid set shift feel.
A filter is the cheap first fix, not the only one. Transmission Digest has documented 4L30E units that slip in 2nd or 3rd because the thin joint gaskets between the pump, overdrive section and main case tear and leak apply pressure. That is internal, and a new pan filter will not stop it. If the fluid is clean and the slip stays, look at the 4L30E pressure control solenoid or plan an overhaul with a 4L30E master rebuild kit.
Drop the pan and read what is in it. A light gray film on the magnet is normal. Brass, fiber chunks or steel fragments point to internal wear. Our flare versus slip guide explains how to separate a pressure problem from a worn clutch on a road test, and the ATF color chart helps you judge the fluid.
The listing covers the 4L30E in the E36 318i, 318is, 318ti, 323i, 323is, 325i, 325is, 328i and 328is (1992-1999), the E34 525i and 528i, and the Z3 (1996-2000), with model years running 1991-2000 depending on chassis. It also names the E39 5 Series. BMW built several of these chassis with a five-speed ZF automatic depending on engine, year and market, so confirm you have the four-speed GM unit before ordering, especially on an E39. A manual car obviously does not use this kit. Match the 53 mm filter neck and pan shape against your old parts, or send us your year and VIN. The 4L30E also went into Isuzu, Honda and Cadillac vehicles, but this kit is listed for the BMW applications.
| Fits | GM 4L30E (AR25/AR35) - BMW 318i/318is/318ti/323i/323is/325i/325is/328i/328is (E36), 525i/528i (E34/E39), Z3 |
| Model years | 1991-2000 depending on chassis |
| OE numbers | 24111218899, 96015432 |
| Includes | 1 transmission filter, 1 oil pan gasket |
| Filter hole diameter | 53 mm (2.09 in) |
| Kit type | Pan service filter and gasket kit |
The listing covers the four-speed automatic E36 3 Series (1992-1999), E34 525i and 528i, and the Z3 (1996-2000). BMW also used a five-speed ZF automatic in some of these chassis, so confirm yours has the four-speed GM unit before ordering.
GM specifies Dexron III. Dry capacity is 6.4 L (about 7 qt) with the 245 mm converter, but a pan drop only drains part of that, so measure what comes out and refill to the hot level.
Only if the filter is restricted. A known 4L30E cause of 2nd or 3rd gear slip is torn joint gaskets between the pump, overdrive section and main case, which needs a teardown. Service the filter first and inspect the pan.
The kit references 24111218899 and 96015432. Compare the filter neck (53 mm opening) and pan shape to your old parts, or send us your year and VIN.
No. Install the gasket dry on clean, flat flanges and tighten the bolts evenly in a crossing pattern.
