Differences
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| transmissions:722.3 [2022/11/14 02:40] – john5788 | transmissions:722.3 [2022/11/14 03:29] (current) – [Main Valve Body] john5788 | ||
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| === Removal === | === Removal === | ||
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| + | === Disassembly === | ||
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| + | === Reassembly === | ||
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| + | {{ transmissions: | ||
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| + | {{ transmissions: | ||
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| - | - Remove | + | - Remove |
| - Remove bracket and detent leaf spring, 1x 10mm hex bolt | - Remove bracket and detent leaf spring, 1x 10mm hex bolt | ||
| - Remove bolts securing lower cover to transmission case, 9x 10mm hex bolts | - Remove bolts securing lower cover to transmission case, 9x 10mm hex bolts | ||
| - | - Pull lower cover along with large intermediate plate away from transmission | + | - Pull secondary valve body along with large intermediate plate away from transmission |
| - Oil deflector piece may fall out from front side of transmission after intermediate plate is removed | - Oil deflector piece may fall out from front side of transmission after intermediate plate is removed | ||
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| - Clean transmission case of any pieces of the old gasket | - Clean transmission case of any pieces of the old gasket | ||
| - Install oil deflector if it was removed | - Install oil deflector if it was removed | ||
| - | - Mount lower cover with intermediate plate against transmission case while aligning oil pipe | + | - Mount secondary valve body with intermediate plate against transmission case while aligning oil pipe |
| - Secure bolts holding lower cover to transmission case, 9x 10mm hex bolts, torque to 8 Nm | - Secure bolts holding lower cover to transmission case, 9x 10mm hex bolts, torque to 8 Nm | ||
| - Mount detent leaf spring and bracket | - Mount detent leaf spring and bracket | ||
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| + | === Screen filters === | ||
| + | Some valve bodies are equipped with 2 small screen filters which can become clogged and cause shifting problems. | ||
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| - | ===== K1 / K2 Accumulators | + | ==== K1 / K2 Accumulators ==== |
| The K1 and K2 accumulators are located inside of the lower valve body behind covers which are easily accessible with the transmission pan removed. | The K1 and K2 accumulators are located inside of the lower valve body behind covers which are easily accessible with the transmission pan removed. | ||
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| - | ===== K1 Accumulator | + | === K1 Accumulator === |
| The K1 accumulator is in charge of shifts between 2 and 3. Usually to help with shifting problems, the springs can be replaced with stiffer ones that are ordered from a Mercedes-Benz dealer. | The K1 accumulator is in charge of shifts between 2 and 3. Usually to help with shifting problems, the springs can be replaced with stiffer ones that are ordered from a Mercedes-Benz dealer. | ||
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| - | === Procedure | + | == Procedure == |
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| - | ===== K2 Accumulator | + | === K2 Accumulator === |
| The K2 spring kit can be purchased and used to replace an existing part to help alleviate shift flares between gears 3 and 4. The part number **126 270 04 35** or **126 270 05 35** can be used at a Mercedes-Benz dealer for ordering a replacement kit. **126 270 04 35** has a 21.6 mm piston lip diameter and **126 270 05 35** has a 19.8 mm piston lip diameter. Be sure to order the matching piston size for your valve body. | The K2 spring kit can be purchased and used to replace an existing part to help alleviate shift flares between gears 3 and 4. The part number **126 270 04 35** or **126 270 05 35** can be used at a Mercedes-Benz dealer for ordering a replacement kit. **126 270 04 35** has a 21.6 mm piston lip diameter and **126 270 05 35** has a 19.8 mm piston lip diameter. Be sure to order the matching piston size for your valve body. | ||
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| In the EPC, these parts are listed for a 722.4 transmission, | In the EPC, these parts are listed for a 722.4 transmission, | ||
| - | === Procedure | + | == Procedure == |
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| - | ==== B1 Accumulator | + | === B1 Accumulator === |
| ===== Kickdown Solenoid ===== | ===== Kickdown Solenoid ===== | ||