11 61 050 Removing and installing intake air manifold (S54)
Special tools required:
- 11 9 160
For identification of special tools, refer to ENGINE- SPECIAL TOOLS .
Necessary preliminary tasks:
Disconnect negative battery lead.
Vehicles with SMG transmissions only:
- Open electronics box cover
- Detach relay (1) of hydraulic pump
- Disconnect line between expansion tank and hydraulic unit from intake manifold
Press locks. Remove hose for engine vent.
Gently raise lug (1) and slide holder upwards.
Feed out battery positive lead.
Detach guide tube (1) for oil dipstick from intake air manifold.
Press locks on vacuum hose (2) and detach.
Detach tank venting valve (1) from holder on intake air manifold.
Release support bracket at front and rear from intake air manifold.
Press lock. Detach hose (1) from intake air manifold.
Disconnect hydraulic fluid connecting hose:
Press locks.
Detach connecting hose to hydraulic unit tank connection.
Place special tool 11 9 160 as shown in illustration on lugs of clamp.
Press clamp together until lock is opened.
Installation:
Replace clamps.
Preassemble clamps in installation position.
Catch (1) must be secured in lug (2).
If hose clamps are used, there is the risk that the throttle control linkage will stop or jam and no longer return to the idle position.
Installation:
Push intake air manifold with hose clamps (1) preassembled in installation position onto throttle assembly.
Installation:
Place special tool 11 9 160 as shown in illustration on lugs of clamp.
Press hose clamps together with special tool 11 9 160 until lock (1) engages.
Press locks and detach condensate return (1).
Raise intake air manifold slightly and detach from throttle assembly.
Feed out vacuum line (1) and wiring harness (2).
Remove intake air manifold.