The description below is for manual transmission S5D 310Z.
1. Disconnect the negative cable from the battery.
2. Remove the exhaust system assembly and its heat shields (see chapter Power supply and exhaust systems).
3. Disconnect the electrical wiring of the lambda probes from the cross member of the subframe and from the manual transmission.
4. Separate a socket of electroconducting Д/В of lanterns of a backing. Disconnect the electrical wiring from the cross member of the subframe and from the manual transmission.
5. On the engine M62 remove the CKP sensor (see chapter Engine Electrical Systems).
6. Disconnect the cardan shaft from the manual transmission and post it. Support the gearbox with a jack. Turn out bolts and remove a cross-beam of a frame.
7. On models with engines M51, M52, M60 and M62 lay a block between the engine crankcase and the front axle beam (tool no. 23 3 030, – for M60 and M62 engines, or no. 11 7 360, – for M51 and M52 engines). On models with M60 and M62 engines, turn the front wheels fully to the left and lower the transmission.
8. Remove the retainer (4), remove the gearshift linkage from the joint and remove the washers (5).
At installation grease draft of a drive of a gear change.
9. Use a screwdriver to pry up the locking bracket. Take out an axial finger of a lock bracket and remove a core of a support of the lever of a gear change.
Lubricate your fingers when installing.
10. Remove the clutch slave cylinder without disconnecting the pressure pipe.
The vacuum in the slave cylinder should be released gradually so that air is not sucked into the cylinder through the sealing cuff.
11. Support the manual transmission with a jack, unscrew the bolts of its fastening, take the manual transmission back and remove it downwards.
When removing and installing the manual transmission, it should not hang on the input shaft, otherwise the clutch disc may be deformed. When installing, screw in the fastening bolts only together with the washers!
12. Installation is carried out in the reverse order. Pay attention to the centering bushings: if necessary, remove them from the gearbox housing and insert them into the cylinder block. Replace damaged centering sleeves. Remove the clutch and release fork, clean them and lubricate them in appropriate places. If the grease on the manual transmission input shaft is sticky, replace the clutch disc.
13. Taking the opportunity, check the clutch disc for rust in the splines and replace the disc if necessary. Using a rag, remove old grease and dust from the clutch disc splines from friction lining wear. Then use a brush to evenly apply spline lubricant in a thin layer over the entire surface of the splines, on the spline groove and neck.
14. After installation, bleed the clutch hydraulics, correct the transmission fluid level and check for fluid leaks.