A/C - Heater Hose May Wear On Intake Manifold: Overview

Group 64
Heating and
Air Conditioning

Bulletin Number
64 16 92 (3656)

Woodcliff Lake, NJ
December 1992
Product Engineering

THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION BULLETIN SHOULD BE PERFORMED ON ALL AFFECTED VEHICLES THE NEXT TIME SUCH VEHICLE IS IN THE SHOP FOR MAINTENANCE OR REPAIRS.

SUBJECT:
Heater Hose/Engine Intake Manifold Clearance

MODELS:
E36 with M42 Engine

Situation:





In some cases the heater hose (refer to illustration) will rub against the engine intake manifold during periods of extreme engine movement (e.g. starting, shutdown). Long-term exposure might produce wear on the sidewall of the hose.