5L50E Overhaul Kit 2000, new and ready to install. Fits the 5L50E. Ships fast from the USA.
If you own a 2000 or 2001 BMW with the GM-built five-speed automatic, such as an E46 3 Series or an E39 5 Series, and it now slips, flares between gears or engages late into Drive, you are probably past the point where a fluid service helps. This is a complete master overhaul kit, Transtar part number 134006, cataloged for the 2000-2001 5L40E and 5L50E. It is new and puts every soft part for a full rebuild in one box: a Transtec overhaul gasket and seal set, a complete BorgWarner high-energy friction set, a complete steel plate set, bushings, and front and rear seals.
GM builds the 5L40E and its heavier-duty 5L50E sibling in Strasbourg, France, and BMW used them from the 1999 model year onward under the names A5S360R and A5S390R. Both share the same five ratios, 3.42 first through 0.75 fifth with a 3.02 reverse, produced by a Ravigneaux gearset with range clutches and one-way sprags. Every shift is a clutch pack being filled with pressure and clamped. When the frictions glaze or burn, or the piston seals and sealing rings harden and leak, apply pressure drops, packs slip as they engage, and heat builds until the fluid cooks. Replacing only the frictions leaves the old seals to leak the new clutches into the same failure, so a master kit covers both halves of the job: fresh friction material and steels for every pack, plus the seals, gaskets and bushings that let each circuit hold pressure.
Start with fluid level and condition, measured with the engine running and the fluid at the temperature the procedure specifies. Read stored codes with a scan tool that supports the transmission controller. Then take a line pressure reading: our line pressure testing guide walks through it. Low pressure in every range points to the pump or a large internal leak, while a slip limited to one gear with normal pressure points to that clutch pack. A harsh or erratic shift with clean fluid is more often a valve body or solenoid issue, which our slipping diagnosis guide helps separate from worn clutches.
This kit is listed for the 5L40E and 5L50E from 2000 to 2001. In that window the unit is found mainly in BMW cars, while the Cadillac, Pontiac and Saturn applications came later and use different kits. Transtar catalogs other 134006 variants for 2002-2010 units, so the model year matters. Before ordering, read the identification tag on the case; Transmission Digest notes it sits on the left rear of the case above the pan rail. If in doubt, send us the year, model and VIN and we will check it. For 2003-2010 units see our 5L50E master rebuild kit 2003-10, and browse every part for this family on the 5L50E parts page.
Inspect the pump gears and bushings, and the drum bores, during teardown. Scored parts should be replaced while the unit is apart; the 5L50E pump is the usual one to replace.
| Fits | 5L50E 2000 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Reference | 134006 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is cataloged for the 5L40E and 5L50E from 2000 to 2001, which in those years means mainly BMW E46 3 Series and E39 5 Series cars with the GM five-speed automatic. Confirm the transmission tag or send us your VIN before ordering.
A Transtec overhaul gasket and seal set, a complete BorgWarner high-energy friction set, a complete steel plate set, bushings, and front and rear seals. It does not include a filter, torque converter or hard parts.
Not usually. The Cadillac 5L40E and 5L50E applications started later, and Transtar lists other 134006 kit variants for 2002-2010 units. Use our 2003-10 master rebuild kit for those and confirm with your VIN.
Use the ATF called for on the transmission tag or in the BMW service information for your car, fill to the correct hot level, and recheck after a test drive.
Yes. Clearing the transmission controller's learned shift adaptations with a capable scan tool after a rebuild lets it relearn with the new clutches, which helps the first shifts feel right.
