Removing Engine
- Risk of burns
→ Let hot components cool down.
→ Wear personal protective gear.
- Damage to hoses and wiring
→ First relieve pressure in the clutch system.
→ Actuate the clutch pedal at least 25 times for this purpose.
- Danger of fire or explosion
→ Avoid contact with hot parts or sources of ignition.
→ Use suction to remove ignitable vapors.
→ Attach warning sign in a clearly visible position.
- Before opening the fuel lines, place a warning sign in a clearly visible position on the vehicle. →
Information
- The steps for removing the air-conditioning compressor are not necessary for vehicles without air conditioning.
- Loosen union nuts (a/f 17) for fuel lines -1 and 2-
at the fuel cooler. Always counter with an open-ended wrench (a/f 14) while doing this.
- 2.1. Soak up emerging fuel with a cloth.
- Mark the rolling direction of the drive belt (with a paint marker, for example). Check the drive belt and pulleys for signs of damage.
- Relieve drive belt and remove from the pulleys.
→ 137819 REMOVING AND INSTALLING DRIVE BELT - GT2 RS .
WARNING: Danger of injury and material damage when using Pentosin.- Risk of skin irritation and damage to skin.
- Damage to hoses and wiring.
→ Wear protective gloves and goggles.
→ In the event of contact (eyes or skin), wash immediately with water.
→ Collect emerging Pentosin.
→ Use caps to protect the wiring against soiling and damage.
→ Clean hoses and wiring immediately.
- Open hydraulic return line -1-
for power steering.
→ 489819 REMOVING AND INSTALLING HYDRAULIC PUMP .
- 5.1. Open spring band clamp -2- and open line connection.
- Disconnect hydraulic line on pressure side with plug-in coupling at the reservoir.
→ WM 489719 REMOVING AND INSTALLING RESERVOIR FOR HYDRAULIC PUMP .
- 6.1. Disassembly tool Nr.21 must be inserted between the line -2- and the red circlip -1- in order to release it by pulling the black line to the right, while at the same time pressing the tool against the red circlip.
- 6.2. Close off lines -1- (-2- ) and insert them into a plastic bag -3- in order to collect any more fluid that leaks out. Secure the bag with a tie-wrap -4- to prevent it from falling off.
- Remove throttle housing. Unscrew four M6 fastening screws -arrows-
and remove cable plug for electronic accelerator.
- 7.1. Replace seal.
- Open rapid-action couplings for fuel supply -1, 2 and 3-
in left of engine compartment. Press release buttons and simultaneously pull off the line.
- 8.1. Soak up emerging fuel with a cloth.
- Disconnect vacuum line for the brake booster.WARNING: Caustic fluids
- Danger of chemical burns
→ Avoid contact with caustic fluid.
→ Wear personal protective gear.
→ Ensure that there is good ventilation.
→ If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.
- Disconnect the breather hose -4- at the coolant reservoir. Open spring band clamp -3- and pull off the hose.
- Open supply hose from coolant reservoir -3- and large coolant hose (Henn coupling) -2- on the left. Loosen spring band clamp -4- and spring clamp -1- and pull off hoses.
- Open large coolant hose (Henn coupling) on the right. Loosen spring clamp and pull off hose.
- Disconnect the air conditioning compressor. The air conditioning system must not be opened in order to do this.
→ WM 873419 REMOVING AND INSTALLING AIR-CONDITIONING COMPRESSOR .
- Place air conditioning compressor at the body/engine compartment on a solid base with the connected hoses.
- Disconnect engine wire harness (2 round connectors with bayonet locks) from the plug connections in the right of the engine compartment. To do this, open the bayonet locks by turning them anti-clockwise.
- Open tie-wrap -arrow- on the cable guide for the engine wire harness and lay wire harness on the engine.
- Open oxygen-sensor plug connections and connector strip for exhaust temperature sensor.
- Remove anti-roll bar. Unscrew two fastening screws -1- and a hexagon nut -2- at the left and right. Counter at the collar nut with a Torx insert.
- Remove front cross member -A-
and the two diagonal braces -B-
.
Information
- Remove upper hexagon-head bolts for the cross member so as to avoid damaging the reference mark sender cable and oil tank when lowering the engine/transmission unit.
- Remove the rear cross member -C-
.
- 20.1. Screw off four fastening nuts -arrows (C)- and counter at the screws while doing so.
- 20.2. Pull out lower screws and remove bracket, then take out the upper screws.
- 20.3. U-profiles are used for the threaded joints on the bracket to make disassembly/assembly easier.
- Fit drain plugs with new sealing rings on the coolant pipes and tighten them.
→ Tightening torque: 10 Nm (7.5 ft. lb.) +5 Nm (+3.5 ft. lb.)
- Fit special tool Adapter Plate 9510/1 -1- to the wheel mount on the brake disc in order to counter when loosening the drive-shaft bolts.
- Loosen drive-shaft bolts on the transmission side.
→ WM 422119 REMOVING AND INSTALLING REAR DRIVE SHAFT .
- 23.1. To protect the coating, wrap a cloth around the shafts and place them on the axle support.
- Pull off cable plug -1-
for reversing light on transmission.
- 24.1. If the locking clip on the cable plug cannot be pressed (switch screw-in position), the switch must be loosened.
- Loosen the coolant hoses on the transmission. Open spring band clamps and pull off hoses. Collect emerging coolant.
- Screw out four M10 hexagon nuts and two M10 x 55 hexagon-head bolts -arrows- on the transmission bracket and remove bracket.
- Disengage shift cables.
→ WM 341219 REMOVING AND INSTALLING SHIFT AND SELECTOR CABLES .
- Loosen electric connection lines on the starter.
→ 276019 REMOVING AND INSTALLING STARTER .
- 28.1. To do this, remove the protection cap on the solenoid switch and unscrew and remove the fastening nuts on the line for terminal 30 -1- , terminal 50 -2- on the starter.
Information
Check for cuts on the entire diameter of the inner rubber edge on the pressure hose leading to the turbocharger. Replace if damaged.
- Loosen the pressure hose on the turbochargers. Open the screw-type clamp -1- and pull off the hose -2- .
- Disconnect engine ground strap on the body. Screw off hexagon nut -1- and remove cable -2- .
- Open clutch pressure line.
- 31.1. Loosen threaded connection -A- - make sure to counter with an open-ended wrench when doing this -B- . Collect emerging hydraulic fluid and close off the lines.
- Remove crash support. Re-fit nuts and bolts immediately after removal. → Tightening torque: 23 Nm (17 ft. lb.)
- Prepare lifting platform and use the following special tools for removal: Secure the mounting plates on each side using two nuts and bolts -2-
at the position shown (observe hole pattern on lifting platform).
Engine Retainer Plate 9111/3
Adapter 9111/1
Spacer 9111/4
Spacer 9111/5
Additional Support 9111/6
- Position lifting platform with pre-fitted engine retainer plate slightly tensioned on the engine. The Spacer 9111/5 must be locked in a horizontal position.
- Loosen collar nuts on transmission bracket.
- Loosen collar nuts on engine carrier from the engine mounts (wrench size 18).NOTE: Engine/transmission unit lowered or inserted incorrectly
- Risk of damage to engine/transmission unit
- Cables and coolant hoses can be stretched and torn
→ Gradually lower or raise the engine using a jack.
→ Always check that all necessary cables were disconnected when lowering the engine/transmission unit.
→ Make sure that no cables or hoses are damaged when fitting the engine/transmission unit.
→ Get one or two more persons to help.
Information
- Get a second person to check the clearance when lowering the engine/transmission unit.
- If the vehicle is placed on its wheels or moved in the workshop, the rear cross member must always be refitted in order to maintain structural strength.
- Lower the engine/transmission unit carefully and in steps.