Work Flow, Procedures and Torque Specs

The attached procedures are copyright BMWAG. I have not asked for permission to post these procedures: if BMW asks me to remove them, I will.

As mentioned previously, I followed the BMW TIS procedures verbatim, and this worked very well for me. On this page I have separated the tasks into two major headings, Disassembly and Assembly. Within each major heading are sub-tasks. Finally, within each subtask you will find links to each pertinent TIS procedure (all TIS procedures are in PDF format). Detailed notes and photographs appear elsewhere. Note that some procedures call others from within the procedure, so that you only perform a certain number of steps in one before moving to another. The list below follows this calling procedure, and therefore contains duplicate links to the same procedure. The steps to be followed for a given link in the list are noted at the end of each link.

Also note that for reassembly, the same procedures are followed in reverse. This is again noted in each link. The first time a procedure is listed, its full TIS document number is shown: subsequent listings omit this information.

Main Task	Sub-Task	TIS Procedure or Notes
Disassembly	Raise car	I use 4-ton jack stands to raise car approx. 24"
	Battery, etc.	TIS 23 00 025 - Removing and Installing S6S-420G Transmission (step 1) TIS 12 00 - Instructions for Disconnecting and Connecting Battery
	Complete exhaust system	TIS 18 00 020 - Removing and Installing Complete Exhaust System, M62 (all steps)
	Driveshaft and transmission	Removing and Installing S6S-420G Transmission (all remaining steps)
	Pressure plate and clutch disk	TIS 21 21 500 - Removing and Installing Clutch (steps 1 and 2)
	Flywheel	TIS 11 22 500 - Removing and Installing Flywheel, M62/S62 (steps 1 and 2)

Assembly	R&R Pilot Bearing	TIS 11 21 571 - Replacing Pilot Bearing, M62/S62 (all steps)
	Flywheel	Removing and Installing Flywheel (all remaining steps)
	Clutch disk and pressure plate	Removing and Installing Clutch (all remaining steps)
	Transmission input components	TIS 23 11 612 - Replacing Guide Tube for Clutch Release Mechanism (all steps) TIS 21 51 500 - Removing and Installing Release Lever (all steps)
	Transmission	Removing and Installing S6S-420G Transmission *(reverse order* back to step 2)**
	Exhaust system	Removing and Installing Complete Exhaust System, M62 *(reverse order, all remaining steps)*
	Reset crankshaft position sensor	TIS 12 14 520 - Replacing Impulse Sensor, M62 (all steps)
	Battery, etc.	Removing and Installing S6S-420G Transmission (steps 2 and 1)
	Lower car, test drive	Re-save your seat memory settings, reset clock and sunroof. When starting car the first time, ensure transmission is in neutral. Carefully pump clutch pedal several times, place in gear and drive away slowly. There is no "break-in" period - you should observe smooth engagement and release from the clutch right off the bat.

Given moderate to advanced mechanic skills, leave 3-4 hours for disassembly and a little bit longer for reassembly.

Obviously a lift and transmission stand would cut 1-1/2 to 2 hours off this this time.

In the above procedures, you will see references to torque specs similar to "Tightening torque, refer to technical data 11 22 1AZ." In this example, the main tech document is number 11, the subgroup is 22, and the referenced torque value is in table entry 1AZ. The table below contains all the torque specs referenced in each of the above procedures, in numerical order. Find the document/subgroup number you are looking for (each section is highlighted in yellow), then look in the table for that section to find the torque value you need. The Nm values have been converted to lbs-ft and are shown in red for each entry.