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Remove/install control solenoid valves of electric controller unit - AR27.19-P-0212A

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TRANSMISSION 722.9, 724.2 

Illustration shows transmission 724.2 in model 222.157 

Fig 1: Electric Controller Unit Control Solenoid Valves Components - Shown On Model 222.157 (1 Of 2)
G09975717Courtesy of MERCEDES-BENZ USA
Fig 2: Electric Controller Unit Control Solenoid Valves Components - Shown On Model 222.157 (2 Of 2)
G09975718NOTESNOTESIMPORTANTREMOVINGDISASSEMBLINGASSEMBLINGTORQUE SPECIFICATIONTORQUE SPECIFICATIONREFER TO CAPACITIES & SPECIFICATIONSREFER TO CAPACITIES & SPECIFICATIONSNOTESIMPORTANTINSPECTIMPORTANTIMPORTANTIMPORTANTCLEANREFER TO CAPACITIES & SPECIFICATIONSREFER TO CAPACITIES & SPECIFICATIONSNOTESIMPORTANTINSPECTNOTESIMPORTANTIMPORTANTCLEANNOTESIMPORTANTIMPORTANTINSTALLINGINSTALLATION IMPORTANTREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSIMPORTANTIMPORTANTIMPORTANTCourtesy of MERCEDES-BENZ USA
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
NOTES Notes on self-locking nuts and bolts   AH00.00-N-0001-01A
IMPORTANT Notes on automatic transmission   AH27.19-P-0001-01NKB
REMOVING Remove     
1 Remove electrohydraulic controller unit TRANSMISSION 724.2 AR27.19-P-0200EH 
TRANSMISSION 722.9 AR27.19-P-0200W 
DISASSEMBLINGASSEMBLING Disassemble/assemble     
2 Unscrew bolts (1) and remove leaf springs (2) TORQUE SPECIFICATION
TRANSMISSION 724.2		 *BA27.19-P-1007-01C 
TORQUE SPECIFICATION
TRANSMISSION 722.9		 *BA27.19-P-1002-01A 
3 Carefully pull control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) out of fully integrated transmission control unit (Y3/8)    
REFER TO CAPACITIES & SPECIFICATIONS TRANSMISSION 722.9 up to 18.06.10
TRANSMISSION 722.9 with ENGINE 629		 Automatic transmission fluids (ATF, Specification 236.14). See https://bevo.mercedes-benz.com/index.php?language_id=1
REFER TO CAPACITIES & SPECIFICATIONS TRANSMISSION 722.9 as from 21.06.10 TRANSMISSION 724.2
NOTESAssembly: 
The Specifications for Operating Fluids must be strictly observed.
Otherwise damage will occur.
IMPORTANTAssembly:  Always install each control solenoid valve (Y3/8y1 to Y3/8y9) and switchover valve (Y3/8y10, Y3/8y11) at the original installation location.
Moisten seals with transmission oil.		 Automatic transmission fluids (ATF, Specification 236.15). See https://bevo.mercedes-benz.com/index.php?language_id=1
INSPECT Check     
4 Determine degree of soiling of control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) IMPORTANT If more than 4 control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) are damaged or soiled, the Market Performance Center (MPC) or general distributor (GV) must be informed and they will then decide how to proceed.
IMPORTANT If there are traces of abrasion or soiling (picture A, picture B), the control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) must be rinsed out.
IMPORTANT If there are no traces of abrasion or soiling (picture C), flushing is not required.		  
CLEAN Clean     
5 Clean sieves of control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11)    
REFER TO CAPACITIES & SPECIFICATIONS TRANSMISSION 722.9 up to 18.06.10
TRANSMISSION 722.9 with ENGINE 629		 Automatic transmission fluids (ATF, Specification 236.14). See https://bevo.mercedes-benz.com/index.php?language_id=1
REFER TO CAPACITIES & SPECIFICATIONS TRANSMISSION 722.9 as from 21.06.10 TRANSMISSION 724.2
NOTES To clean, use only fresh transmission oil and do not use compressed air, rags, brake cleaner, etc..
The Specifications for Operating Fluids must be strictly observed.
Otherwise damage will occur.
IMPORTANT Clean the sieves of the control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) carefully using a magnet. Then clean the sieves by rinsing them in fresh transmission oil until the wear debris and dirt are removed.		 Automatic transmission fluids (ATF, Specification 236.15). See https://bevo.mercedes-benz.com/index.php?language_id=1
INSPECT Check     
6 Clean seals (6a, 6b) NOTES The Specifications for Operating Fluids must be strictly observed.
Damage will otherwise occur.
IMPORTANTAssembly:  Check condition and correct seating, replace if necessary. Moisten new seals (6a, 6b) with transmission oil.		  
7 Check control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) for cleanliness and damage IMPORTANT If no soiling or damage is visible (picture B, picture C), the control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) can be reused. If soiling or damage is visible (picture A), the affected control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) must be replaced.  
CLEAN Clean     
8 Check seats of control solenoid valves (Y3/8y1 to Y3/8y9) and switchover valves (Y3/8y10, Y3/8y11) in valve body assembly (4), and clean, if necessary. NOTES To clean, use only fresh transmission oil and do not use compressed air, rags, brake cleaner, etc.. The Specifications for Operating Fluids must be strictly observed.
Damage will otherwise occur.
IMPORTANT Check seats for soiling.
IMPORTANT If necessary, turn over valve body assembly (4) and rinse out any contamination.		  
9 Assemble in the reverse order    
INSTALLING Install     
10 Install electrohydraulic controller unit TRANSMISSION 724.2 AR27.19-P-0200EH 
TRANSMISSION 722.9
INSTALLATION IMPORTANT Throughly clean oil pan and magnet, then replace oil filter.		 AR27.19-P-0200W 
11 Perform gear selection adaptation of renewed control solenoid valves (Y3/8y1 to Y3/8y9) using STAR DIAGNOSIS After replacing control solenoid valves (Y3/8y1 to Y3/8y9)  
REFER TO SELF-DIAGNOSTIC SYSTEMS TRANSMISSION 722.9 in MODEL 205, 217, 222
TRANSMISSION 724.2 in MODEL 205, 222		 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS TRANSMISSION 722.9 in MODEL 164, 166, 171, 172, 203, 204, 207, 209, 211, 212, 215, 216, 218, 219, 220, 221, 230, 231, 251
TRANSMISSION 724.2 in MODEL 212
IMPORTANT The adaptation values for the electric controller unit (VGS) (Y3/8) may not be reset.
IMPORTANT After replacing the control solenoid valves (Y3/8y1 to Y3/8y9) the corresponding gears have to then be adapted:
→ Clutch control solenoid valve K1 (VGS) (Y3/8y2) gear 6 to 5 and gear 2 to 3
→ Clutch control solenoid valve K2 (VGS) (Y3/8y3) gear 3 to 4
→ Clutch control solenoid valve K3 (VGS) (Y3/8y4) gear 4 to 3 and gear 4 to 5
→ Brake control solenoid valve B1 (VGS) (Y3/8y5) gear 3 to 2 and gear 1 to 2
→ Brake control solenoid valve B2 (VGS) (Y3/8y6) gear 5 to 4
→ Brake control solenoid valve B3 (VGS) (Y3/8y7) gear 2 to 1
IMPORTANT The following valves/functions must undergo teach-in:
→ Wet clutch control solenoid valve (Y3/8y9)
→ D/R switchover valve (Y3/8y10)
→ Park pawl switchover valve (Y3/8y11)		 AD00.00-P-2000-04A
ELECTROHYDRAULIC CONTROLLER UNIT

Number Designation TRANSMISSION 722.9
BA27.19-P-1002-01A Bolt, solenoid valve to shift plate Nm 8
ELECTROHYDRAULIC CONTROLLER UNIT

Number Designation TRANSMISSION 724.2
BA27.19-P-1007-01C Bolt, valves to electrohydraulic controller unit Nm 9
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