Remove
Disconnect ground cable from battery.
Remove air cleaner housing – see illustration "Air Duct (X 20 XEV, X 20 XER)".
For Z 20 LET engine: Remove air cleaner housing with air intake pipe – see illustration "Air Cleaner Housing (Z 20 LET)".
Mark running direction of ribbed V-belt. Tension ribbed V-belt tensioner with SW. 15 (clockwise) and remove ribbed V-belt from alternator belt pulley.
Remove alternator support (1) and alternator shackle (2).
Disconnect cable connections from alternator.
Remove fastening bolts (3) from cylinder block and remove alternator with alternator support upwards.
For vehicles with right-hand drive: remove alternator with alternator support downwards.
When replacing the alternator, reinstall alternator support.
Note. Check alternator – see operation "Alternator, Check" (X 16 XEL Engine) in group "J".
Disassemble and reassemble alternator – see operation "Bosch Compact Alternator, Disassemble and Reassemble" (X 16 XEL Engine) in group "J".
Install
Attach alternator with alternator support to cylinder block – tightening torque 35 Nm / 26 lbf. ft.
Attach cable connections to alternator – observe cable routing.
Attach alternator support to alternator and intake manifold – tightening torque 20 Nm / 15 lbf. ft.
Attach alternator shackle to intake manifold, alternator and coolant flange – tightening torque 20 Nm / 15 lbf. ft.
Tension ribbed V-belt tension roller clockwise with SW. 15 (clockwise) and position ribbed V-belt – note ribbed V-belt direction of travel.
For Z 20 LET engine: Install air cleaner housing with air intake pipe – see illustration "Air Duct (Z 20 LET)".
Install air cleaner housing – see illustration "Air Duct (X 20 XEV, X 20 XER)".
Connect ground cable to battery.