Mercedes Sprinter HVAC Climate Control Unit – OEM | T1N | #9098301000 (2002–2006)

A failed or malfunctioning HVAC climate control unit on a T1N Sprinter leaves the driver without reliable control over temperature, fan speed, air distribution, or A/C function — making the van uncomfortable in extreme temperatures and in some configurations leaving auxiliary heater functions inaccessible. This is the OEM HVAC operating unit for T1N Sprinters equipped with automatic climate control, a direct replacement that restores full dash-operated control over the van's heating and air conditioning system.

What This Part Does

The HVAC operating unit — also called the climate control module or HVAC control head — is the dashboard-mounted control interface that allows the driver to set temperature, fan speed, air distribution mode, and air conditioning function. On T1N Sprinters equipped with automatic climate control, the unit is an integrated electronic module that translates driver inputs from its rotary dials and buttons into commands sent to the HVAC blower motor, blend door actuators, A/C compressor clutch relay, and auxiliary heater system. When the unit's internal circuit board develops solder joint failures, its potentiometers wear from repeated use, or its display and button functions become intermittent, climate control becomes unreliable — producing the stuck settings, unresponsive controls, and incorrect temperature regulation that signal a failing control head.

Common Symptoms of a Failing HVAC Control Unit

• Climate control settings that don't respond to input — temperature, fan speed, or mode buttons unresponsive
• Fan that runs at one speed regardless of the dial setting
• A/C that won't engage or won't disengage from the control unit
• Temperature that won't adjust despite confirmed functional actuators and sensors
• Display that is dim, partially illuminated, or completely dark
• Auxiliary heater that cannot be controlled or activated from the dash

When to Replace

Replace when the control unit is confirmed failed after ruling out the blower motor, actuators, A/C compressor, and associated wiring as the fault source. The HVAC operating unit is VIN-specific — always verify your existing part number and VIN before ordering.

T1N Specific — VIN Verification Required

This HVAC operating unit is for T1N Sprinters (W903/W904) with automatic climate control. It is not compatible with NCV3 or VS30 Sprinters. Always verify your VIN and existing unit part number before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2002–2006 Mercedes-Benz Sprinter 2500 / 3500 – Automatic climate control (T1N/W903/W904)
• 2003–2006 Dodge Sprinter 2500 / 3500 – Automatic climate control (T1N)

✔ VIN-specific — always verify existing part number before ordering
✔ T1N only — not compatible with NCV3 or VS30

Part Numbers

• Mercedes OEM: 9098301000 / A9098301000 / 909-830-10-00
• SKU: 9098301000