This unit is compatible with the following models: Citroën Berlingo I & II and Peugeot Partner I & II. Proper functioning of heating controls is crucial for maintaining comfort during colder months.

Common issues leading to replacement include wear and tear from extended use, exposure to temperature fluctuations, and electrical failures. It is advisable to inspect this component regularly during vehicle maintenance.

The installation is straightforward and typically involves removing the dashboard panel to access the control unit. This process should take about an hour, making it a manageable task for both professional mechanics and DIY enthusiasts.

Technical Information

• Manufacturer: PSA
• Model: Citroën Berlingo, Peugeot Partner
• Product Codes: 030550F, 6451HH
• Additional Numbers: Not Available

This product typically may have an issue with a missing mount as shown in the image provided.

Citroën Berlingo and Peugeot Partner are versatile vehicles manufactured since 1996 to the present day.

The production of the first generation vehicles, designated M49, took place from 1996 to 2003, followed by a facelift model marked as M59 produced from 2003 to 2009.

The production of the second generation vehicles, designated B9, occurred from 2008 to 2012. The first facelift of the second generation was produced from 2012 to 2015, and the second facelift was manufactured from 2015 to 2018.

The production of the third generation vehicles, designated K9, began in 2018 and continues to this day.

How to Replace the Control Unit?

It is recommended to have this part replaced by a professional service.

Manufacturer of the Part: Valeo

Valeo is a French global automotive supplier headquartered in France and listed on the Paris Stock Exchange (CAC-40 index). They provide a wide range of products to automakers and the aftermarket. The group employs 113,600 people in 33 countries worldwide.

Additional Part Numbers

030805G 6451ENJ

High-quality heating controller designed for first-series Citroën Berlingo and Peugeot Partner models. Supplied with OEM reference numbers 030807DA / 030807D / 6451NJ, this unit restores reliable control of cabin temperature, blower speed and air distribution. Ideal for professional mechanics and experienced DIY enthusiasts searching by part number, this replacement control helps eliminate inconsistent fan speeds, stuck blend doors or unresponsive temperature selectors.

Function And Application

The heating controller is the user interface for the vehicle HVAC system. It controls blower speed, temperature selection, air distribution (dash/feet/defrost), recirculation and, where applicable, A/C engagement. In Citroën Berlingo and Peugeot Partner first-series vehicles this module operates the manual climate system and communicates with the vehicle’s actuators and blower motor.

Technical Information

• Manufacturer: Stellantis (Citroën/Peugeot)
• Model: Citroën Berlingo I; Peugeot Partner I (First Series)
• Product Codes: 030807DA, 030807D, 6451NJ
• Other Numbers: 030807D | 030807DA | 6451NJ

Compatibility And Part Number Search

This controller is commonly searched and ordered by its product codes. When looking up replacements, use the codes 030807DA, 030807D or 6451NJ to increase the chance of quick identification. Intended for first-series Citroën Berlingo and Peugeot Partner models; verify physical connector shape and mounting before installation.

Replacement Procedure (Overview)

Basic replacement steps for trained technicians and competent DIYers:

• Disconnect Negative Battery Terminal Before Work.
• Remove Center Trim/Bezel Surrounding The HVAC Controls (careful of clips and retaining screws).
• Unscrew The Controller From The Dashboard Frame And Gently Pull Forward.
• Unplug Electrical Connectors And Any Bowden/Cable Linkages Or Vacuum Lines If Present.
• Fit The Replacement Unit, Reconnect All Plugs And Linkages, And Reinstall Trim.
• Reconnect Battery And Verify All HVAC Functions: Fan Speeds, Temperature Range, Airflow Modes, Recirculation And A/C Engagement.

Installation Recommendations

• Always Disconnect The Battery Before Starting To Avoid Short Circuits And To Protect Electronic Modules.
• Handle Connectors Carefully To Avoid Damaging Pins; Inspect For Corrosion Or Bent Contacts.
• Check Blower Motor And HVAC Actuators For Proper Operation Before Replacing The Controller—faulty actuators can mimic controller faults.
• During Reassembly Ensure Trim Clips Are Properly Seated To Prevent Unwanted Rattles.
• After Installation Test All Modes And Speeds; On Intermittent Faults, Inspect Wiring Harness For Chafing Or Loose Grounds.

Why This Part Fails

Common failure reasons for heating controllers in these models:

• Wear Of Internal Potentiometers Or Rotary Encoders Leading To Erratic Fan Speed Or Unresponsive Controls.
• Accumulation Of Dust, Moisture Or Corrosion On Electrical Contacts Causing Intermittent Operation.
• Mechanical Damage To Knobs, Dials Or Internal Linkages From Excessive Force.
• Overheating Or Age-Related Component Degradation After Many Years Of Service.
• Faults In Connected Components (Blower Motor, Resistor Pack Or Actuators) That Stress The Controller.

Practical Tips For Diagnosis

• Verify Power And Ground At The Controller Connector With A Multimeter Before Replacing The Unit.
• Swap In A Known-Good Blower Or Temporarily Bypass A Faulty Resistor To Confirm Where The Fault Lies.
• Check For Related Diagnostic Trouble Codes If The Vehicle Supports HVAC Fault Logging.

Part Numbers For Reference And SEO: 030807DA, 030807D, 6451NJ. Replace your worn or malfunctioning heating controller to restore precise cabin comfort control and reliable HVAC operation in Citroën Berlingo and Peugeot Partner first-series vehicles.

Compatible with models like Citroën Berlingo and Peugeot Partner, this unit replaces the original part numbers 030808E and 6451NL. Due to regular use, the Heater Control may wear out over time, resulting in diminished performance or malfunction. It is crucial to replace it to maintain the car’s heating and ventilation system effectively.

Technical Information

• Manufacturer: PSA
• Model: Citroën Berlingo / Peugeot Partner
• Product Codes: 030808E, 6451NL
• Other Numbers: NFP

This particular model, identified by product numbers 030806Q and 6451NL, is known for its reliability and durability. It’s crucial to replace this component as it can wear out over time due to constant usage, leading to inefficient heating or cooling.

Installation is straightforward and can typically be done with basic tools, making it a suitable choice for both professional mechanics and DIY enthusiasts. Regular maintenance and timely replacement of the heater control can prevent other heating system issues and ensure optimal performance.

Technical Information

• Manufacturer: PSA Citroën Peugeot
• Model: 030806Q 6451NL
• Product Codes: 030806Q, 6451NL
• Additional Numbers: NFP

How to Replace the Controllers?

We recommend having this part replaced by a professional service.

Part Manufacturer: Valeo

Valeo is a French global automotive supplier based in France and listed on the Paris Stock Exchange (CAC-40 index). It provides a wide range of products for automakers and the aftermarket. The group employs 113,600 people in 33 countries worldwide.

Additional Codes

030808E 6451EE

Technical Information

Manufacturer: Valeo
Model: Citroën Berlingo, Peugeot Partner
Product Codes: 030808E, 6451EE
Additional Numbers: 030808E, 6451EE