BMW 5 Series E60 / 6 Series E63 A/C Blower Motor Regulator Resistor | HELLA BEHR MAHLE 5HL351321211 | OEM 67326922058 / 67326932438 / 67326937774 / 67326948422 / 67326988452 / 67636988452

Cross Reference Part Numbers

1. Manufacturer Code: HELLA BEHR MAHLE 5HL351321211
2. Full BMW OEM interchange numbers:

• 67326922058
• 67326932438
• 67326937774
• 67326948422
• 67326988452
• 67636988452

Exact Vehicle Fitment

1. BMW 5 Series E60 520d
    
   Engine: N47 D20 A / N47 D20 C
    
   Production Date: 2007.09 – 2009.12
2. BMW 6 Series E63 645Ci
    
   Engine: N62 B44 A
    
   Production Date: 2003.09 – 2005.08
    
   Additional compatible models: E61 Touring, E64 Convertible, all variants with automatic air conditioning system, LHD & RHD global versions.

Technical Specifications

1. Operating Voltage: DC 12V automotive standard
2. Structure: Electronic power regulator with cast aluminum heat sink
3. Pin Connector: 5-pin OEM waterproof plug
4. Mounting: Two bolt fixed points on the heater housing
5. Protection Circuit: Built-in overcurrent & overheat protection
6. Quality Standard: HELLA BEHR European Tier 1 OEM production standard
7. Application: Only fits automatic climate control (not manual AC systems)

Core Functions

1. Steplessly adjust blower fan airflow speed for heating and air conditioning
2. Follow climate control ECU signal to stabilize cabin temperature output
3. Prevent blower motor burnout caused by overcurrent overload
4. Maintain consistent airflow for automatic dual-zone HVAC system

Common Malfunctions Resolved

• Blower only runs at full speed without adjustable fan gears
• Fan completely stops working with zero airflow from all vents
• Intermittent fan shutdown caused by module overheating
• Burnt regulator leading to blown fuses
• Burning plastic odor inside the passenger footwell
• HVAC control circuit fault codes stored in vehicle ECU

Product Advantages

1. Authentic HELLA BEHR MAHLE OEM quality, same specification as factory original parts
2. Thick aluminum heat sink greatly reduces operating temperature to extend service life
3. Exact OEM plug and mounting dimension, no rewiring or cutting needed
4. Multiple built-in safety circuits to avoid repeated burnout failure
5. One single part covers six different BMW OEM numbers, greatly reduce warehouse SKU cost

Package Includes

Installation Guidance

1. Disconnect vehicle 12V battery negative terminal before disassembly
2. Remove the passenger side glove box to access the blower regulator
3. Inspect and replace the blower motor if the shaft is stiff or seized
4. Test all fan speed levels after installation, then clear HVAC fault codes with BMW diagnostic scanner

Warehouse SKU