Operation CHARM: Car repair manuals for everyone.
Home >> Toyota >> 1998 >> Sienna LE V6-3.0L (1MZ-FE) >> Repair and Diagnosis >> Heating and Air Conditioning >> Heater Core >> Service and Repair >> Front Heater Unit
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Front Heater Unit

REMOVAL
1. DRAIN ENGINE COOLANT FROM RADIATOR

HINT: It is not necessary to drain out all the coolant.

2. REMOVE THESE PARTS
a. Instrument panel
b. Reinforcement
c. Defroster nozzle




3. REMOVE HEATER RADIATOR
a. Remove the screw and piping clamp.
b. Remove the 2 screws, 2 clamps and 2 heater radiator pipes from the heater radiator.
c. Pull out the heater radiator.
d. Remove 2 O-rings from heater radiator pipes.

INSTALLATION
Installation is in the reverse order of removal.
pro multis · About Operation CHARM