Engine and Transmission, Separating
Engine and Transmission, Separating
Special tools, testers and auxiliary items required
• Bracket (30 - 211 A)
• Adapter (VAS 6131/12-1) qty. 2
• Adapter (T40058)
Procedure
• Engine/transmission unit removed and attached to Scissor Lift Table (VAS6131).
- Remove front transmission mount left and right bolts - arrows - and lay subframe on scissor lift table.
- Remove lower engine-transmission connecting bolts - arrows -.
- Equip Scissor Lift Table (VAS 6131) with Support Set (VAS 6131/10) and Supplementary Set (VAS 6131/12) as follows:
- Position support elements from (VAS 6131/10) and (VAS 6131/12) at left on engine as shown in illustration.
- Position support elements from (VAS 6131/10) and (VAS 6131/12) at right on engine as shown in illustration.
- Twist spindles of attachments upward far enough until all support pins make contact at support points.
- Tighten base plates for support elements to 20 Nm on Scissor Lift Table (VAS 6131).
- Turn spindle of left support element on transmission all the way down.
- Remove left support element base plate from Scissor Lift Table (VAS 6131).
- Turn spindle of right support element on transmission all the way down.
- Remove right support element base plate from Scissor Lift Table (VAS 6131).
- Remove subframe to the side.
CAUTION!
Risk of falling due to lack of support.
• After removing subframe, position transmission mounting elements at the front again in the same location.
- Remove electrical harness connectors from bracket and disconnect it:
3 For Heated Oxygen Sensor (HO) 2 (G108)
4 For Oxygen Sensor (O) 2 Behind Three Way Catalytic Converter (TWO) (G131)
- Free up electrical wires to oxygen sensors.
• The illustration shows electrical connectors in installation positions.
• Ignore items - 1, 2 and arrows -.
- Remove bolt - 2 - at left catalytic converter bracket.
• Ignore items - 1 and 3 -.
- Remove bolt - 1 - and remove oil dipstick guide tube upward.
- Remove bolts - 4 and 5 - and pivot hydraulic oil pipe to side.
- Remove bolts - 2 and 3 - and remove left coolant pipe from coolant hoses - arrows -.
- Remove bolt - arrow - and pull hydraulic oil pressure pipe forward slightly.
- Remove nuts - 6 through 1 - and remove left exhaust manifold with catalytic converter.
• Both lower securing strips remain installed.
- Disconnect electrical connector - arrow - on Engine Speed (RPM) Sensor (G28).
CAUTION!
Risk of destroying transmission control module (Mechatronic) with static discharge.
• Do not touch contacts in transmission connector with hands.
- To discharge static electricity, touch transmission housing with hand (without wearing gloves).
- Disconnect electrical connector on transmission by turning twist lock counter-clockwise - arrow -.
- Remove electrical harness connectors from bracket and disconnect it:
1. For Heated Oxygen Sensor (HO) (G39)
2. For Oxygen Sensor (O) Behind Three Way Catalytic Converter (TWO) (G130)
- Free up electrical wires to oxygen sensors.
• The illustration shows electrical connectors in installation positions.
• Ignore items - 3, 4 and arrows -.
- Remove bolts - 1 and 2 - and remove right coolant pipe from coolant hoses - arrows -.
- Remove bolts - arrows - and remove torque support mount.
- Remove bolts - 2 through 5 - and remove torque support.
• Ignore - 1 -.
- Remove bolt - 2 - at right catalytic converter bracket.
• Ignore - 1 -.
- Remove nuts - 6 through 1 - and remove right exhaust manifold with catalytic converter.
• Both lower securing strips remain installed.
- Free up ATF cooler on engine carrier and secure it from falling down.
- Remove engine bracket bolts at left and right - arrows -.
- Remove engine carrier.
- Disconnect electrical harness connector - 2 - at right engine mount.
- Remove electrical wiring bracket - 1 - from right engine support.
- Remove bolts - arrows - and remove engine support with engine mount.
- Remove Ground (GND) cable - 1 -.
- Disconnect electrical wires - 3 and 4 - from starter.
- Remove bolts - 2 and 5 - and remove starter.
- Remove nut - arrow - and remove ATF-lines from bracket.
- Insert Adapter (T40058) guide pins as follows:
• Small diameter - arrow 1 - points to engine.
• Large diameter - arrow 2 - points to socket.
- To loosen torque converter bolts, counterhold crankshaft using Adapter (T40058).
• Disregard - arrow -.
- Remove 3 torque converter bolts - arrow - in opening on removed starter (turn crankshaft 1/3 rotation in each case).
- Remove engine-transmission connecting bolts - 3 through 7 -.
• Ignore - A -.
- Loosen bolt - 1 - and pivot left lower coolant pipe up slightly.
• Ignore items - 2, 3 and 4 -.
- Be careful of ATF cooler.
- Loosen side clamping screws - 1 - on Scissor Lift Table (VAS 6131) and pull rear platform top with transmission toward rear - arrow -, simultaneously push torque converter off drive plate through opening for removed starter while doing this.
- Secure torque converter in transmission with Bracket (30 - 211 A) to prevent it from falling down.
