Fuel Filter - MAHLE - KL947
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Product Information
Full details
The MAHLE KL947 fuel filter is designed for automotive technicians and DIY enthusiasts who require a reliable, high-performance filtration solution for specific diesel engines. This filter excels at capturing fine contaminants to protect your fuel system and engine internals from premature wear, though users should ensure their vehicle's fuel line pressure specifications match the filter's design before installation. With a robust in-line construction, it serves as a high-quality direct replacement for original equipment, ensuring factory-level fuel cleanliness and flow efficiency.
All features
| Model Part Number | KL947 |
|---|---|
| Brand | MAHLE |
Extended Product Information
FAQs
Is the MAHLE KL947 compatible with all diesel engines?
No, it is designed specifically as a replacement for OE number A651 090 3052. Always check your vehicle manual or part compatibility chart.
Do I need to prime the fuel filter before installing?
It is recommended to follow the priming procedure outlined in your vehicle's service manual after the new filter is physically installed.
What are the dimensions of the KL947?
The filter has a height of 123.8 mm and a diameter of 86.5 mm.
Which side is the inlet and which is the outlet?
The inlet is 10 mm in diameter, while the outlet is 8.0 mm. Always look for the flow arrow etched on the housing.
How often should I replace this filter?
Consult your vehicle maintenance schedule, but generally, fuel filters should be replaced every 20,000 to 40,000 miles to protect the injection system.
Troubleshooting
Engine cranks but fails to start after filter replacement
The fuel system likely contains air pockets. Cycle the ignition key on and off 3-5 times to allow the electronic fuel pump to bleed the air.
Fuel leaking from the connection points
Ensure the quick-connect fittings are fully seated until they click. Inspect O-rings for debris or damage prior to connection.
Pros and Cons
Pros
- High-efficiency filtration keeps fuel injectors clean
- Direct OE replacement ensures a perfect fit
- Robust construction for long service life
- Standardized dimensions make installation straightforward
Cons
- Requires specific tool access for fuel line disconnects
- Must be matched strictly to compatible OE part numbers
- Requires careful system bleeding after installation
Setup, Compatibility & Care
To ensure proper function, first confirm that your vehicle's engine requires OE part number A651 090 3052. Installation should only be performed when the engine is cool. Relieve the fuel system pressure before disconnecting the existing lines to prevent spraying. Always install the filter in the correct directional orientation, as indicated by the flow arrows on the housing. After installation, cycle the ignition switch to the 'on' position without starting the engine to allow the fuel pump to prime the filter and remove trapped air. Replace this filter according to your vehicle manufacturer’s recommended service interval, typically every 20,000 to 40,000 miles, depending on fuel quality and driving habits.