Range Rover SE (LP) V8-4.0L (1995)
Air Door Actuator / Motor: All Technical Service Bulletins
A/C - Blend Flap Vibration in Cold Conditions
11/08/96
80/02/96/US
SUBJECT:
HVAC - Blend Flap Vibration Service Fix
MODEL:
Range Rover 4.0/4.6
AFFECTED VEHICLES:
LP
up to TA350615
LH
LJ
LD
DETAIL
In cold ambient conditions below 50°F (10°C) the right blend flap may create a vibration between the flap and the heater assembly body. To remedy this
noise, a neoprene o-ring can be fined to the servomotor's spindle, damping the vibration. The neoprene o-ring has been introduced on the assembly line
at VIN TA350615, and vehicles after this VIN should not exhibit the blend flap vibration.
ACTION REQUIRED
Should a customer complain of a vibration or throbbing sound coming from the fascia, investigate whether or not it is a blend flap vibration. If upon
further investigation the blend flap is found to be the origin of the fascia vibration, follow the procedure below to fit the neoprene 0-ring.
PARTS INFORMATION
STC3259OR: Neoprene O-ring
Tools and Supplies:
Snap On PN: SSDE48 Thin-blade screwdriver Dumdum adhesive
PROCEDURE
REMOVAL
NOTE:
The suspect blend flap servomotor is on the right-hand side. When the right blend flap servomotor begins to vibrate it induces the vibration on the
left-hand side. Therefore, fitting the neoprene 0-ring to the right blend flap servomotor should eliminate left blend flap vibration.
! Ensure that the vehicle battery (negative terminal) is disconnected before proceeding to step 1. A twenty minute delay is recommended prior to
removal of air bag module.
WARRANTY:
Normal warranty policy and procedures apply.
COMP. CODE:
8M4
SRO:
82.20.89/26: Blend flap vibration fix - 1.5 hr
Passenger's side: