Valve Body Overview
Valve Body Overview
Do not run the engine or tow the vehicle when the transmission pan is removed or when there is no Automatic Transmission Fluid (ATF) in the transmission.
• The valve body and the wiring harnesses can also be removed with the transmission installed.
• Install the O-rings using ATF. Other types of lubricants lead to faults in the transmission hydraulics.
• Always replace a dirty or faulty valve body.
• Only use lint free cloths
• Check the ATF level after installing the pan. Refer to => [ Automatic Transmission Fluid Level, Checking and Adding ] Automatic Transmission Fluid Level, Checking and Adding.
1 Inspection Plug
• Transmission fluid level, checking and adding. Refer to => [ Automatic Transmission Fluid Level, Checking and Adding ] Automatic Transmission Fluid Level, Checking and Adding.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
2 Seal
• Always replace.
3 Overflow Tube
• Remove in order to drain the transmission fluid.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
4 Transmission Fluid Pan
• Removing and installing, refer to => [ Transmission Fluid Pan ] Service and Repair.
5 Bolt
• Tighten the pan bolts diagonally and in several steps.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
6 Gasket
• With spacers (quantity: 8).
• Check before installing.
• Replace the spacers are brittle, cracked or deformed.
7 Magnet
• Quantity: 2; in the depressions in the pan.
• Clean before installing the pan.
8 Bolt
• For attaching the valve body to the transmission.
• Quantity 12, with different lengths. Refer to => [ Bolt lengths and locations on the valve body ] Service and Repair.
• Always replace the bolts.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
9 Bolt
• Quantity: 3
• For attaching the filter to the valve body.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
10 Transmission Fluid Filter
• Removing and installing, refer to => [ Transmission Fluid Filter ] Service and Repair.
11 Valve Body
• Removing and installing, refer to => [ Valve Body ] Service and Repair.
• For the correct solenoid valve designation refer to => [ Wire Routing, Connectors and Valve Body Bracket ] Wire Routing, Connectors and Valve Body Bracket.
• Allocation. Refer to the Parts Catalog.
12 Bolt
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
13 Bolt
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
14 Transmission Input Speed Sensor (G182)
• Removing and installing, refer to => [ Transmission Input Speed Sensor G182 ] Transmission Input Speed Sensor G182.
15 Bolt
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
16 Transmission Output Speed Sensor (G195)
• Removing and installing, refer to => [ Transmission Output Speed Sensor G195 ] Transmission Output Speed Sensor G195.
17 Transmission Housing
• Shown here without the ATF cooler.
18 Vent
19 Multifunction Transmission Range Switch (F125)
• Removing and installing, refer to => [ Multifunction Transmission Range Switch F125 ] Service and Repair.
• Adjusting, refer to => [ Multifunction Transmission Range Switch F125, Adjusting ] Adjustments.
20 Transmission Fluid Temperature Sensor (G93)
• Integrated inside the sensor wiring harness - item 23 -.
• Wire routing, refer to => [ Wire Routing, Connectors and Valve Body Bracket ] Wire Routing, Connectors and Valve Body Bracket.
• Removing and installing, refer to => [ Wiring Harness, Sensors ] Wiring Harness, Sensors.
21 Bolt
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
22 Bolt
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
23 Sensor Wiring Harness
• With an 8 pin connector.
• With an O-ring on the connector; always replace the O-ring.
• With the transmission fluid temperature sensor.
• For the transmission input speed sensor.
• For the transmission output speed sensor.
• Wire routing, refer to => [ Wire Routing, Connectors and Valve Body Bracket ] Wire Routing, Connectors and Valve Body Bracket.
• Removing and installing, refer to => [ Wiring Harness, Sensors ] Wiring Harness, Sensors.
• Allocation. Refer to the Parts Catalog.
24 Seal
• Always replace, if equipped.
25 Drain Plug
• Not installed on all transmissions.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
26 Selector Shaft Lever
• On the selector shaft.
27 Washer
28 Nut
• Installed position: The centering collar faces the washer - item 27 -.
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.
29 Spring
• Allocation. Refer to the Parts Catalog.
30 Piston
31 Solenoid Valve Wiring Harness
• With a 14 pin connector
• With an O-ring on the connector; always replace the O-ring.
• Solenoid valve installed location and wiring harness routing, refer to => [ Wiring Harness, Solenoid Valves ] Wiring Harness, Solenoid Valves.
• Removing and installing, refer to => [ Wiring Harness, Solenoid Valves ] Wiring Harness, Solenoid Valves.
32 Bolt
• Tightening specification, refer to => [ Fastener Tightening Specifications ] Fastener Tightening Specifications.