Engine and Transmission, Separating
Engine and Transmission, Separating
Special tools, testers and auxiliary items required
• Adapter (VAS 6131/10-12); quantity: 2
• Socket (T40058)
Procedure
• Engine/transmission unit removed and attached to scissor lift platform (VAS 6131 A).
- Remove bracket for oxygen sensor electrical connectors - 1 to 4 - from subframe - arrow -.
- Remove electrical harness connectors from bracket and disconnect it.
- Remove oxygen sensor electrical connectors - 1 - and - 2 - from bracket and disconnect them.
• Ignore - arrows -.
- Remove the bolts - 2 - and - 3 -.
- Pull the oil dipstick guide tube upward and off - arrow -.
- Loosen hose clamps - 1 - and - 4 - and remove left coolant pipe from coolant hoses.
- Remove the bolt - arrow - on the strap for the left exhaust system tract.
- Remove nuts - arrows -.
- Remove nuts in - 9 to 1 - sequence and remove left front exhaust manifold with catalytic converter.
- Disconnect electrical harness connectors - 1 - and - 2 - for oxygen sensors.
• The connectors are shown in their installed position in the illustration.
- Remove nuts in - 6 to 1 - sequence and remove left rear exhaust manifold with catalytic converter.
- Remove bolts - arrows - and remove torque support mount.
- Remove bolts - 1 through 5 - and remove torque support bracket.
- Remove the bolts - 2 - and - 3 -.
- Loosen hose clamps - 1, 4, 5 - and remove right coolant pipe from coolant hoses.
- Remove the bolt - arrow - on the right exhaust system tract strap.
- Remove nuts - arrows -.
- Remove nuts in - 9 to 1 - sequence and remove right front exhaust manifold with catalytic converter.
- Remove nuts in - 6 to 1 - sequence and remove right rear exhaust manifold with catalytic converter.
- Also place a support element from support set (VAS 6131/10) at right rear of transmission as shown in illustration.
• Fastening point on the scissor lift table (VAS 6131 A): G15.
- Rotate support element spindle upward until support pin comes into contact with support point.
- Tighten the support element base plate to 20 Nm on the (VAS 6131 A).
- Remove left and right front transmission mount bolts - arrows -.
- Rotate left and right support element spindles - 2 - on subframe completely down.
- Remove support pins from spindles.
- Remove both base plates of the subframe support elements from (VAS 6131 A).
- Remove subframe - 3 - to the side.
- Rotate left and right support element spindles - 1 - on engine carrier - 4 - completely down.
- Remove engine bracket bolts at left and right - arrows -.
- Remove engine carrier.
- Remove both base plates of the subframe support elements from (VAS 6131 A).
• The support points for front of engine and transmission remain unchanged.
- Remove bottom engine/transmission connecting bolts - arrows -.
- Equip (VAS 6131 A) with (VAS 6131/10) as well as 3 (VAS 6131/10-12) as follows:
- Position support elements from (VAS 6131/10) at left on engine/transmission as shown in illustration.
- Position support elements from (VAS 6131/10) at right on engine/transmission as shown in illustration.
- Remove left drive axle heat shield from transmission - arrows -.
- Remove coolant hoses - arrows -.
- Remove left transmission mount heat shield - arrow -.
- Touch the transmission housing (when not wearing gloves) to discharge the static electricity.
CAUTION!
• Only touch Mechatronic electrical connector after you have discharged electrostatically on a grounded object, for example, skin contact with the transmission housing.
• Never touch the connector contact in the 16-pin connector for any reason because the control module and Mechatronic could be destroyed by static discharge.
- Disconnect electrical connector at left on transmission by turning the twist lock counterclockwise - arrow -.
- Free up the wiring harness.
- Disconnect electrical connector - arrow - on engine speed sensor (G28).
- Free up electrical wiring.
- Remove electrical wiring bracket from right engine support - arrow -.
- Remove ground (GND) wire - 4 - from starter.
- Disconnect the wires - 2 - and - 3 - from the starter.
- Remove bolts - 1 - and - 5 - and remove starter.
- Insert the (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 (T40058).
• Only turn the crankshaft in the direction of engine rotation - arrow -.
- Remove 6 torque converter bolts - arrows - in opening on removed starter (turn crankshaft 1/3 rotation in each case).
- Remove engine/transmission connecting bolts - 3 to 7 -.
• Ignore - A -.
- Loosen side clamping bolts - 1 - on (VAS 6131 A) and pull rear platform top with transmission toward rear - arrow -, simultaneously push torque converter through opening of drive plate while doing this.
