mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Renewing (Intake Manifold Removed)|Page 2252 > < Renewing (Intake Manifold Removed)|Page 2250
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Remove, reinstall. Clean, check flange surfaces with straightedge, machine on straightening plate if required.

NOTE:  Upon assembly ensure that no vacuum lines and electrical wires are jammed in.

Intake manifold gaskets (12)

Renew.

Engine control

Adjust.

Leaks

Check by running engine, check fuel lines for leaks. Check intake system, fuel distributor and injection valves for leaks by spraying with
Iso-Octane.

Idle speed

Check, adjust. 

NOTE:  Gaskets with changed coating were temporarily installed between intake manifold and cylinder head.
Characteristics:  Blue coating around the suction and idle speed ports

Production Breakpoint: January - August 1984

Production Breakpoint: November 1986

A hose fitting with bead is installed to prevent slipping of the vacuum line on the intake manifold.

Production Breakpoint: July 1987

Renewing (Intake Manifold Removed)|Page 2252 > < Renewing (Intake Manifold Removed)|Page 2250