K&N 33-2594 Panel Air Filter for BMW 5 Series E34 Diesel 1988-1997 - 524td 525td - High-Flow Cotton Gauze Drop-In Panel, Washable Reusable Performance Intake Filter, OEM Replacement for Stock Airbox - Cross Ref BMW 13 72 2 248 025

K&N 33-2594 drop-in intake upgrade for BMW E34 diesel

Give your BMW 5 Series E34 diesel the airflow it deserves with the K&N 33-2594 high flow panel. This serviceable cotton gauze element slots straight into the standard airbox, helping your engine breathe freely while maintaining impressive filtration for long engine life. It is a cost-effective, eco-friendly alternative to throwaway paper filters and a fantastic choice for routine servicing or a subtle performance-focused refresh.

We use this filter ourselves and our customers love the fit, finish and long-term value. Clean it, re-oil it and refit. Simple.

Why choose this high flow panel

• Direct drop-in element for the factory airbox - no cutting, no coding, no remap required
• Multi-layer oiled cotton media designed for strong airflow and dependable engine protection
• Washable and reusable for a long service life and reduced waste
• Great for maintenance, drivability and intake optimisation on daily cars and enthusiast builds
• Excellent fitment quality with a robust frame and seal

Compatibility

Intended for BMW 5 Series E34 diesel applications listed below. If you are unsure, we are happy to confirm fitment before you buy.

• BMW 5 Series E34 525td 2.5 1991-1997 - 105 kW 143 hp
• BMW 5 Series E34 525td 2.5 1991-1995 - 105 kW 143 hp
• BMW 5 Series E34 525td 2.5 1993-1997 - 85 kW 115 hp
• BMW 5 Series E34 525td 2.5 1993-1995 - 85 kW 115 hp
• BMW 5 Series E34 524td 2.5 1988-1995 - 85 kW 115 hp

Cross reference: BMW 13.72-2248025.

What you will notice

• Freer breathing intake with reduced restriction compared to many disposable filters
• Reusable design that can be refreshed with a suitable cleaning kit, saving money over time
• A tidy service upgrade that supports crisp throttle response and smooth running

Care and maintenance

When the element appears dirty, remove and clean with an appropriate filter cleaner, rinse, allow to dry fully and re-oil evenly. Refit to the stock airbox and ensure a proper seal all around the frame.

Fitting and support

This element is designed for quick installation into the original airbox using basic tools. Prefer a professional installation or a health check while you are upgrading your intake? Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Pre-dispatch compatibility check

For complete peace of mind, provide your UK registration or the last 7 digits of your VIN at checkout and we will manually confirm this 33-2594 element suits your vehicle before shipping.

Part numbers

K&N part number: 33-2594

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